0505.Net基础班第十五天（winform基础）

1、Directory 操作文件夹 CreateDirectory 创建文件夹 Delete  删除文件夹 Move  剪切文件夹 Exist  判断是否存在 GetFiles 获得指定的目录下所有文件的全路径 GetDirectory 获得指定目录下所有文件夹的全路径

2、WebBrowser浏览器控件 url

3、ComboBox下拉框控件 DropDownStyle：控制下拉框的外观样式 名字：cbo+.... 案例：日期选择器

4、点击更换图片 1)、在程序加载的时候，将指定图片文件夹中所有的图片文件名读取到ListBox中

5、石头剪刀布 石头 1   剪刀 2 布  3 玩家赢了：  1 2=-1   2 3=-1  3  1=2 平手：   相减 =0 另外一种情况 ：电脑赢了

6、对话框

7、进程 我们可以把计算机中每一个运行的应用程序都当做是一个进程。 而一个进程又是由多个线程组成的。

8、单线程给我们带来的问题

9、在.Net下，是不允许跨线程的访问。

MessageBox.Show()的各种用法 

【函数】 <整型> MessageBox（<字符串> Text, <字符串> Title, <整型> nType，MessageBoxIcon）;

【函数说明】 弹出一个消息框。

【语法】

参数：

Text <字符串>，消息框的正文；

Title <字符串>，消息框的标题；

nType <整型>，消息框的类型。

返回值：<整型>，用户在消息框上点击关闭时的选择的按钮。 MessageBoxIcon：对话框上显示的图标样式。

【说明】

MessageBox("消息内容", "返回值 确定1",MessageBoxButtons.OK,MessageBoxIcon.Question);

MessageBox("消息内容",, "返回值 确定1 取消2",MessageBoxButtons.OKCancel, MessageBoxIcon.Asterisk);

MessageBox("消息内容", "返回值 终止3 重试4 忽略5",MessageBoxButtons.AbortRetryIgnore, MessageBoxIcon.Error);

MessageBox("消息内容", "返回值 是6 否7 取消2",MessageBoxButtons.YesNoCancel, MessageBoxIcon.Exclamation);

MessageBox("消息内容", "返回值 是6 否7",MessageBoxButtons.YesNo, MessageBoxIcon.Hand);

MessageBox("消息内容", "返回值 重试4 取消2",MessageBoxButtons.RetryCancel, MessageBoxIcon.Information);

MessageBoxIcon: 所有图标样式

MessageBoxIcon.Question

MessageBoxIcon.Asterisk

MessageBoxIcon.Information

MessageBoxIcon.Error

MessageBoxIcon.Stop

MessageBoxIcon.Hand

MessageBoxIcon.Exclamation

MessageBoxIcon.Warning

MessageBoxIcon.None

01、Directory类

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _01_Directory类
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
    }
}

namespace _01_Directory类
{
    partial class Form1
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows 窗体设计器生成的代码

        /// <summary>
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.Text = "Form1";
        }

        #endregion
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _01_Directory类
{
    static class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}

02、Directory

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _02_Directory
{
    class Program
    {
        static void Main(string[] args)
        {
            //File  Path   FileStream  StreamReader  StreamWriter
            //Directory 文件夹 目录
            //创建文件夹
            //Directory.CreateDirectory(@"C:a");
            //Console.WriteLine("创建成功");
            //Console.ReadKey();

            //删除文件夹
            //Directory.Delete(@"C:a",true);
            //Console.WriteLine("删除成功");
            //Console.ReadKey();


            //剪切文件夹
            //Directory.Move(@"c:a", @"C:UsersSpringRainDesktop
ew");
            //Console.WriteLine("剪切成功");
            //Console.ReadKey();


            //获得指定文件夹下所有文件的全路径
            //string[] path = Directory.GetFiles(@"C:UsersSpringRainDesktopPicture","*.jpg");
            //for (int i = 0; i < path.Length; i++)
            //{
            //    Console.WriteLine(path[i]);
            //}
            //Console.ReadKey();


            //获得指定目录下所有文件夹的全路径
            //string[] path = Directory.GetDirectories(@"C:UsersSpringRainDesktop
ew");
            //for (int i = 0; i < path.Length; i++)
            //{
            //    Console.WriteLine(path[i]);
            //}
            //Console.ReadKey();


            //判断指定的文件夹是否存在
            //if (Directory.Exists(@"C:a"))
            //{
            //    for (int i = 0; i < 100; i++)
            //    {
            //        Directory.CreateDirectory(@"C:a" + i);
            //    }   
            //}
            //Console.WriteLine("OK");
            //Console.ReadKey();


            //Directory.Delete(@"C:a", true);
            //Console.ReadKey();
        }
    }
}

03、浏览器控件

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _03_浏览器控件
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            
            string text = textBox1.Text;
            Uri uri = new Uri("http://"+text);
            webBrowser1.Url = uri;
        }
    }
}

namespace _03_浏览器控件
{
    partial class Form1
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows 窗体设计器生成的代码

        /// <summary>
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.webBrowser1 = new System.Windows.Forms.WebBrowser();
            this.textBox1 = new System.Windows.Forms.TextBox();
            this.button1 = new System.Windows.Forms.Button();
            this.SuspendLayout();
            // 
            // webBrowser1
            // 
            this.webBrowser1.Location = new System.Drawing.Point(38, 40);
            this.webBrowser1.MinimumSize = new System.Drawing.Size(20, 20);
            this.webBrowser1.Name = "webBrowser1";
            this.webBrowser1.Size = new System.Drawing.Size(670, 334);
            this.webBrowser1.TabIndex = 0;
            this.webBrowser1.Url = new System.Uri("", System.UriKind.Relative);
            // 
            // textBox1
            // 
            this.textBox1.Location = new System.Drawing.Point(38, 13);
            this.textBox1.Name = "textBox1";
            this.textBox1.Size = new System.Drawing.Size(557, 21);
            this.textBox1.TabIndex = 1;
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(619, 13);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(75, 23);
            this.button1.TabIndex = 2;
            this.button1.Text = "去往";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(777, 419);
            this.Controls.Add(this.button1);
            this.Controls.Add(this.textBox1);
            this.Controls.Add(this.webBrowser1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.WebBrowser webBrowser1;
        private System.Windows.Forms.TextBox textBox1;
        private System.Windows.Forms.Button button1;
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _03_浏览器控件
{
    static class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}

04ComboBox

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _04ComboBox
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //通过代码给下拉框添加数据
            comboBox2.Items.Add("张三");
            comboBox2.Items.Add("李四");
            comboBox2.Items.Add("王五");
        }

        private void button2_Click(object sender, EventArgs e)
        {
            comboBox2.Items.Clear();
        }
    }
}

namespace _04ComboBox
{
    partial class Form1
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows 窗体设计器生成的代码

        /// <summary>
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.comboBox1 = new System.Windows.Forms.ComboBox();
            this.comboBox2 = new System.Windows.Forms.ComboBox();
            this.comboBox3 = new System.Windows.Forms.ComboBox();
            this.button1 = new System.Windows.Forms.Button();
            this.button2 = new System.Windows.Forms.Button();
            this.SuspendLayout();
            // 
            // comboBox1
            // 
            this.comboBox1.FormattingEnabled = true;
            this.comboBox1.Items.AddRange(new object[] {
            "Monday",
            "TuesDay",
            "WednesDay",
            "ThursDay",
            "Friday",
            "SaturDay",
            "SunDay"});
            this.comboBox1.Location = new System.Drawing.Point(23, 96);
            this.comboBox1.Name = "comboBox1";
            this.comboBox1.Size = new System.Drawing.Size(147, 20);
            this.comboBox1.TabIndex = 0;
            // 
            // comboBox2
            // 
            this.comboBox2.DropDownStyle = System.Windows.Forms.ComboBoxStyle.Simple;
            this.comboBox2.FormattingEnabled = true;
            this.comboBox2.Items.AddRange(new object[] {
            "Monday",
            "TuesDay",
            "WednesDay",
            "ThursDay",
            "Friday",
            "SaturDay",
            "SunDay"});
            this.comboBox2.Location = new System.Drawing.Point(212, 96);
            this.comboBox2.Name = "comboBox2";
            this.comboBox2.Size = new System.Drawing.Size(121, 150);
            this.comboBox2.TabIndex = 1;
            // 
            // comboBox3
            // 
            this.comboBox3.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
            this.comboBox3.FormattingEnabled = true;
            this.comboBox3.Items.AddRange(new object[] {
            "Monday",
            "TuesDay",
            "WednesDay",
            "ThursDay",
            "Friday",
            "SaturDay",
            "SunDay"});
            this.comboBox3.Location = new System.Drawing.Point(395, 96);
            this.comboBox3.Name = "comboBox3";
            this.comboBox3.Size = new System.Drawing.Size(121, 20);
            this.comboBox3.TabIndex = 2;
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(212, 41);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(75, 23);
            this.button1.TabIndex = 3;
            this.button1.Text = "button1";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // button2
            // 
            this.button2.Location = new System.Drawing.Point(293, 41);
            this.button2.Name = "button2";
            this.button2.Size = new System.Drawing.Size(75, 23);
            this.button2.TabIndex = 4;
            this.button2.Text = "button2";
            this.button2.UseVisualStyleBackColor = true;
            this.button2.Click += new System.EventHandler(this.button2_Click);
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(694, 449);
            this.Controls.Add(this.button2);
            this.Controls.Add(this.button1);
            this.Controls.Add(this.comboBox3);
            this.Controls.Add(this.comboBox2);
            this.Controls.Add(this.comboBox1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.ComboBox comboBox1;
        private System.Windows.Forms.ComboBox comboBox2;
        private System.Windows.Forms.ComboBox comboBox3;
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.Button button2;
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _04ComboBox
{
    static class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}

05日期选择器

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _05日期选择器
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            //程序加载的时候 将年份添加到下拉框中
            //获得当前的年份
            int year = DateTime.Now.Year;

            for (int i = year; i >= 1949; i--)
            {
                cboYear.Items.Add(i + "年");
            }
        }



        /// <summary>
        /// 当年份发生改变的时候 加载月份
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void cboYear_SelectedIndexChanged(object sender, EventArgs e)
        {

            //添加之前应该清空之前的内容
            cboMonth.Items.Clear();
            for (int i = 1; i <= 12; i++)
            {
                cboMonth.Items.Add(i + "月");
            }
        }



        /// <summary>
        /// 当月份发生改变的时候 加载天
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void cboMonth_SelectedIndexChanged(object sender, EventArgs e)
        {
            cboDays.Items.Clear();
            int day = 0;//定义一个变量来存储天数

            //获得月份 7月 12
            string strMonth = cboMonth.SelectedItem.ToString().Split(new char[] { '月' }, StringSplitOptions.RemoveEmptyEntries)[0];
            string strYear = cboYear.SelectedItem.ToString().Split(new char[] { '年' }, StringSplitOptions.RemoveEmptyEntries)[0];
            // MessageBox.Show(cboMonth.SelectedItem.ToString());
            int year = Convert.ToInt32(strYear);
            int month = Convert.ToInt32(strMonth);
            switch (month)
            { 
                case 1:
                case 3:
                case 5:
                case 7:
                case 8:
                case 10:
                case 12: day = 31;
                    break;
                case 2:
                    if ((year % 400 == 0) || (year % 4 == 0 && year % 100 != 0))
                    {
                        day = 29;
                    }
                    else
                    {
                        day = 28;
                    }
                    break;
                default: day = 30;
                    break;
            }

            for (int i = 1; i <= day; i++)
            {
                cboDays.Items.Add(i + "日");
            }
        }
    }
}

namespace _05日期选择器
{
    partial class Form1
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows 窗体设计器生成的代码

        /// <summary>
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.cboYear = new System.Windows.Forms.ComboBox();
            this.cboMonth = new System.Windows.Forms.ComboBox();
            this.cboDays = new System.Windows.Forms.ComboBox();
            this.SuspendLayout();
            // 
            // cboYear
            // 
            this.cboYear.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
            this.cboYear.FormattingEnabled = true;
            this.cboYear.Location = new System.Drawing.Point(80, 84);
            this.cboYear.Name = "cboYear";
            this.cboYear.Size = new System.Drawing.Size(121, 20);
            this.cboYear.TabIndex = 0;
            this.cboYear.SelectedIndexChanged += new System.EventHandler(this.cboYear_SelectedIndexChanged);
            // 
            // cboMonth
            // 
            this.cboMonth.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
            this.cboMonth.FormattingEnabled = true;
            this.cboMonth.Location = new System.Drawing.Point(239, 84);
            this.cboMonth.Name = "cboMonth";
            this.cboMonth.Size = new System.Drawing.Size(121, 20);
            this.cboMonth.TabIndex = 1;
            this.cboMonth.SelectedIndexChanged += new System.EventHandler(this.cboMonth_SelectedIndexChanged);
            // 
            // cboDays
            // 
            this.cboDays.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
            this.cboDays.FormattingEnabled = true;
            this.cboDays.Location = new System.Drawing.Point(401, 84);
            this.cboDays.Name = "cboDays";
            this.cboDays.Size = new System.Drawing.Size(121, 20);
            this.cboDays.TabIndex = 2;
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(657, 430);
            this.Controls.Add(this.cboDays);
            this.Controls.Add(this.cboMonth);
            this.Controls.Add(this.cboYear);
            this.Name = "Form1";
            this.Text = "Form1";
            this.Load += new System.EventHandler(this.Form1_Load);
            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.ComboBox cboYear;
        private System.Windows.Forms.ComboBox cboMonth;
        private System.Windows.Forms.ComboBox cboDays;
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _05日期选择器
{
    static class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}

06ListBox控件

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _06ListBox控件
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            listBox1.Items.Add(1);
            listBox1.Items.Add(1);
            listBox1.Items.Add(1);
            listBox1.Items.Add(1);
            listBox1.Items.Add(1);
        }
    }
}

namespace _06ListBox控件
{
    partial class Form1
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows 窗体设计器生成的代码

        /// <summary>
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.listBox1 = new System.Windows.Forms.ListBox();
            this.SuspendLayout();
            // 
            // listBox1
            // 
            this.listBox1.FormattingEnabled = true;
            this.listBox1.ItemHeight = 12;
            this.listBox1.Items.AddRange(new object[] {
            "Monday",
            "TuesDay",
            "WednesDay",
            "ThursDay",
            "Friday",
            "SaturDay",
            "SunDay"});
            this.listBox1.Location = new System.Drawing.Point(12, 55);
            this.listBox1.Name = "listBox1";
            this.listBox1.Size = new System.Drawing.Size(163, 328);
            this.listBox1.TabIndex = 0;
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(663, 412);
            this.Controls.Add(this.listBox1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.Load += new System.EventHandler(this.Form1_Load);
            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.ListBox listBox1;
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _06ListBox控件
{
    static class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}

07实现点击更换照片

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;
namespace _07实现点击更换照片
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }


        //用来存储图片文件的全路径
        List<string> list = new List<string>();

        private void Form1_Load(object sender, EventArgs e)
        {
            string[] path = Directory.GetFiles(@"C:UsersSpringRainDesktopPicture", "*.jpg");
            for (int i = 0; i < path.Length; i++)
            {
                string fileName = Path.GetFileName(path[i]);
                listBox1.Items.Add(fileName);
                //将图片的全路径添加到List泛型集合中
                list.Add(path[i]);
                //listBox1.Items.Add(path[i]);
            }
        }

      
        /// <summary>
        /// 双击播放图片
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void listBox1_DoubleClick(object sender, EventArgs e)
        {
            pictureBox1.Image = Image.FromFile(list[listBox1.SelectedIndex]);
        }
    }
}

namespace _07实现点击更换照片
{
    partial class Form1
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows 窗体设计器生成的代码

        /// <summary>
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.listBox1 = new System.Windows.Forms.ListBox();
            this.pictureBox1 = new System.Windows.Forms.PictureBox();
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();
            this.SuspendLayout();
            // 
            // listBox1
            // 
            this.listBox1.FormattingEnabled = true;
            this.listBox1.ItemHeight = 12;
            this.listBox1.Location = new System.Drawing.Point(13, 13);
            this.listBox1.Name = "listBox1";
            this.listBox1.Size = new System.Drawing.Size(198, 448);
            this.listBox1.TabIndex = 0;
            this.listBox1.DoubleClick += new System.EventHandler(this.listBox1_DoubleClick);
            // 
            // pictureBox1
            // 
            this.pictureBox1.Location = new System.Drawing.Point(264, 13);
            this.pictureBox1.Name = "pictureBox1";
            this.pictureBox1.Size = new System.Drawing.Size(410, 443);
            this.pictureBox1.TabIndex = 1;
            this.pictureBox1.TabStop = false;
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(709, 468);
            this.Controls.Add(this.pictureBox1);
            this.Controls.Add(this.listBox1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.Load += new System.EventHandler(this.Form1_Load);
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();
            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.ListBox listBox1;
        private System.Windows.Forms.PictureBox pictureBox1;
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _07实现点击更换照片
{
    static class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}

08双击播放音乐

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;
using System.Media;
namespace _08双击播放音乐
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        //存储音乐文件的全路径
        List<string> listSongs = new List<string>();
        private void Form1_Load(object sender, EventArgs e)
        {
            string[] path = Directory.GetFiles(@"C:UsersSpringRainDesktopMusic", "*.wav");
            for (int i = 0; i < path.Length; i++)
            {
                string fileName = Path.GetFileName(path[i]);
                listBox1.Items.Add(fileName);
                //将音乐文件的全路径存到泛型集合中
                listSongs.Add(path[i]);
            }
        }

        private void listBox1_DoubleClick(object sender, EventArgs e)
        {
            SoundPlayer sp = new SoundPlayer();
            sp.SoundLocation=listSongs[listBox1.SelectedIndex];
            sp.Play();
        }
    }
}

namespace _08双击播放音乐
{
    partial class Form1
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows 窗体设计器生成的代码

        /// <summary>
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.listBox1 = new System.Windows.Forms.ListBox();
            this.SuspendLayout();
            // 
            // listBox1
            // 
            this.listBox1.FormattingEnabled = true;
            this.listBox1.ItemHeight = 12;
            this.listBox1.Location = new System.Drawing.Point(22, 8);
            this.listBox1.Name = "listBox1";
            this.listBox1.Size = new System.Drawing.Size(188, 400);
            this.listBox1.TabIndex = 0;
            this.listBox1.DoubleClick += new System.EventHandler(this.listBox1_DoubleClick);
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(703, 420);
            this.Controls.Add(this.listBox1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.Load += new System.EventHandler(this.Form1_Load);
            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.ListBox listBox1;
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _08双击播放音乐
{
    static class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}

09石头剪刀布

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _09石头剪刀布
{
    public enum Result
    {
        玩家赢,
        电脑赢,
        平手
    }


    class CaiPan
    {
        public static Result Judge(int playerNumber, int cpuNumber)
        {
            if (playerNumber - cpuNumber == -1 || playerNumber - cpuNumber == 2)
            {
                return Result.玩家赢;
            }
            else if (playerNumber - cpuNumber == 0)
            {
                return Result.平手;
            }
            else
            {
                return Result.电脑赢;
            }
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _09石头剪刀布
{
    class Computer
    {


        /// <summary>
        /// 存储电脑出的拳头
        /// </summary>
        public string Fist
        {
            get;
            set;
        }


        public int ShowFist()
        {
            Random r = new Random();
            int rNumber = r.Next(1, 4);
            switch (rNumber)
            {
                case 1: this.Fist = "石头";
                    break;
                case 2: this.Fist = "剪刀";
                    break;
                case 3: this.Fist = "布";
                    break;
            }
            return rNumber;
        }
    }
}

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _09石头剪刀布
{
    public partial class lblComputer : Form
    {
        public lblComputer()
        {
            InitializeComponent();
        }

        private void btnStone_Click(object sender, EventArgs e)
        {
            string str = "石头";
            PlayGame(str);
        }

        private void PlayGame(string str)
        {
            lblPlayer.Text = str;

            Player player = new Player();
            int playerNumber = player.ShowFist(str);

            Computer cpu = new Computer();
            int cpuNumber = cpu.ShowFist();
            label4.Text = cpu.Fist;

            Result res = CaiPan.Judge(playerNumber, cpuNumber);

            lblResult.Text = res.ToString();
        }

        private void btnCut_Click(object sender, EventArgs e)
        {
            string str = "剪刀";
            PlayGame(str);
        }

        private void btnNo_Click(object sender, EventArgs e)
        {
            string str = "布";
            PlayGame(str);
        }
    }
}

namespace _09石头剪刀布
{
    partial class lblComputer
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows 窗体设计器生成的代码

        /// <summary>
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.label1 = new System.Windows.Forms.Label();
            this.lblPlayer = new System.Windows.Forms.Label();
            this.label3 = new System.Windows.Forms.Label();
            this.label4 = new System.Windows.Forms.Label();
            this.label5 = new System.Windows.Forms.Label();
            this.lblResult = new System.Windows.Forms.Label();
            this.btnStone = new System.Windows.Forms.Button();
            this.btnCut = new System.Windows.Forms.Button();
            this.btnNo = new System.Windows.Forms.Button();
            this.SuspendLayout();
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(31, 45);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(53, 12);
            this.label1.TabIndex = 0;
            this.label1.Text = "玩家出：";
            // 
            // lblPlayer
            // 
            this.lblPlayer.AutoSize = true;
            this.lblPlayer.Location = new System.Drawing.Point(125, 45);
            this.lblPlayer.Name = "lblPlayer";
            this.lblPlayer.Size = new System.Drawing.Size(41, 12);
            this.lblPlayer.TabIndex = 1;
            this.lblPlayer.Text = "label2";
            // 
            // label3
            // 
            this.label3.AutoSize = true;
            this.label3.Location = new System.Drawing.Point(414, 44);
            this.label3.Name = "label3";
            this.label3.Size = new System.Drawing.Size(53, 12);
            this.label3.TabIndex = 2;
            this.label3.Text = "电脑出：";
            // 
            // label4
            // 
            this.label4.AutoSize = true;
            this.label4.Location = new System.Drawing.Point(507, 44);
            this.label4.Name = "label4";
            this.label4.Size = new System.Drawing.Size(41, 12);
            this.label4.TabIndex = 3;
            this.label4.Text = "label4";
            // 
            // label5
            // 
            this.label5.AutoSize = true;
            this.label5.Location = new System.Drawing.Point(235, 202);
            this.label5.Name = "label5";
            this.label5.Size = new System.Drawing.Size(29, 12);
            this.label5.TabIndex = 4;
            this.label5.Text = "裁判";
            // 
            // lblResult
            // 
            this.lblResult.AutoSize = true;
            this.lblResult.Location = new System.Drawing.Point(305, 202);
            this.lblResult.Name = "lblResult";
            this.lblResult.Size = new System.Drawing.Size(41, 12);
            this.lblResult.TabIndex = 5;
            this.lblResult.Text = "label6";
            // 
            // btnStone
            // 
            this.btnStone.Location = new System.Drawing.Point(122, 283);
            this.btnStone.Name = "btnStone";
            this.btnStone.Size = new System.Drawing.Size(75, 23);
            this.btnStone.TabIndex = 6;
            this.btnStone.Text = "石头";
            this.btnStone.UseVisualStyleBackColor = true;
            this.btnStone.Click += new System.EventHandler(this.btnStone_Click);
            // 
            // btnCut
            // 
            this.btnCut.Location = new System.Drawing.Point(263, 283);
            this.btnCut.Name = "btnCut";
            this.btnCut.Size = new System.Drawing.Size(75, 23);
            this.btnCut.TabIndex = 7;
            this.btnCut.Text = "剪刀";
            this.btnCut.UseVisualStyleBackColor = true;
            this.btnCut.Click += new System.EventHandler(this.btnCut_Click);
            // 
            // btnNo
            // 
            this.btnNo.Location = new System.Drawing.Point(392, 283);
            this.btnNo.Name = "btnNo";
            this.btnNo.Size = new System.Drawing.Size(75, 23);
            this.btnNo.TabIndex = 8;
            this.btnNo.Text = "布";
            this.btnNo.UseVisualStyleBackColor = true;
            this.btnNo.Click += new System.EventHandler(this.btnNo_Click);
            // 
            // lblComputer
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(664, 435);
            this.Controls.Add(this.btnNo);
            this.Controls.Add(this.btnCut);
            this.Controls.Add(this.btnStone);
            this.Controls.Add(this.lblResult);
            this.Controls.Add(this.label5);
            this.Controls.Add(this.label4);
            this.Controls.Add(this.label3);
            this.Controls.Add(this.lblPlayer);
            this.Controls.Add(this.label1);
            this.Name = "lblComputer";
            this.Text = "Form1";
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.Label lblPlayer;
        private System.Windows.Forms.Label label3;
        private System.Windows.Forms.Label label4;
        private System.Windows.Forms.Label label5;
        private System.Windows.Forms.Label lblResult;
        private System.Windows.Forms.Button btnStone;
        private System.Windows.Forms.Button btnCut;
        private System.Windows.Forms.Button btnNo;
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _09石头剪刀布
{
    class Player
    {
        public int ShowFist(string fist)
        {
            int num = 0;
            switch (fist)
            {
                case "石头": num = 1;
                    break;
                case "剪刀": num = 2;
                    break;
                case "布": num = 3;
                    break;
            }
            return num;
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _09石头剪刀布
{
    static class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new lblComputer());
        }
    }
}

10打开对话框

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;
namespace _10打开对话框
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //点击弹出对话框
            OpenFileDialog ofd = new OpenFileDialog();
            //设置对话框的标题
            ofd.Title = "请选择要打开的文本文件哟亲 O(∩_∩)O~";
            //设置对话框可以多选
            ofd.Multiselect = true;
            //设置对话框的初始目录
            ofd.InitialDirectory = @"C:UsersSpringRainDesktop";
            //设置对话框的文件类型
            ofd.Filter = "文本文件|*.txt|媒体文件|*.wmv|图片文件|*.jpg|所有文件|*.*";
            //展示对话框
            ofd.ShowDialog();

            //获得在打开对话框中选中文件的路径
            string path = ofd.FileName;
            if (path == "")
            {
                return;
            }
            using (FileStream fsRead = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Read))
            {
                byte[] buffer = new byte[1024 * 1024 * 5];
                //实际读取到的字节数
                int r = fsRead.Read(buffer, 0, buffer.Length);

                textBox1.Text = Encoding.Default.GetString(buffer, 0, r);
            }
        }
    }
}

namespace _10打开对话框
{
    partial class Form1
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows 窗体设计器生成的代码

        /// <summary>
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.button1 = new System.Windows.Forms.Button();
            this.textBox1 = new System.Windows.Forms.TextBox();
            this.SuspendLayout();
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(13, 13);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(75, 23);
            this.button1.TabIndex = 0;
            this.button1.Text = "选择文件";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // textBox1
            // 
            this.textBox1.Location = new System.Drawing.Point(13, 68);
            this.textBox1.Multiline = true;
            this.textBox1.Name = "textBox1";
            this.textBox1.Size = new System.Drawing.Size(625, 314);
            this.textBox1.TabIndex = 1;
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(735, 417);
            this.Controls.Add(this.textBox1);
            this.Controls.Add(this.button1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.TextBox textBox1;
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _10打开对话框
{
    static class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}

11、保存文件对话框

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _11_保存文件对话框
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            SaveFileDialog sfd = new SaveFileDialog();
            sfd.Title = "请选择要保存的路径";
            sfd.InitialDirectory = @"C:UsersSpringRainDesktop";
            sfd.Filter = "文本文件|*.txt|所有文件|*.*";
            sfd.ShowDialog();
            //获得保存文件的路径
            string path = sfd.FileName;
            if (path == "")
            {
                return;
            }
            using (FileStream fsWrite = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Write))
            {
                byte[] buffer = Encoding.Default.GetBytes(textBox1.Text);
                fsWrite.Write(buffer, 0, buffer.Length);
            }
            MessageBox.Show("保存成功");

        }
    }
}

namespace _11_保存文件对话框
{
    partial class Form1
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows 窗体设计器生成的代码

        /// <summary>
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.textBox1 = new System.Windows.Forms.TextBox();
            this.button1 = new System.Windows.Forms.Button();
            this.SuspendLayout();
            // 
            // textBox1
            // 
            this.textBox1.Location = new System.Drawing.Point(32, 121);
            this.textBox1.Multiline = true;
            this.textBox1.Name = "textBox1";
            this.textBox1.Size = new System.Drawing.Size(468, 302);
            this.textBox1.TabIndex = 0;
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(32, 41);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(75, 23);
            this.button1.TabIndex = 1;
            this.button1.Text = "保存";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(557, 452);
            this.Controls.Add(this.button1);
            this.Controls.Add(this.textBox1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.TextBox textBox1;
        private System.Windows.Forms.Button button1;
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _11_保存文件对话框
{
    static class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}

12、字体和颜色对话框

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _12_字体和颜色对话框
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }



        /// <summary>
        /// 字体对话框
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button1_Click(object sender, EventArgs e)
        {
            FontDialog fd = new FontDialog();
            fd.ShowDialog();
            textBox1.Font = fd.Font;
        }

        private void button2_Click(object sender, EventArgs e)
        {
            ColorDialog cd = new ColorDialog();
            cd.ShowDialog();
            textBox1.ForeColor = cd.Color;
        }
    }
}

namespace _12_字体和颜色对话框
{
    partial class Form1
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows 窗体设计器生成的代码

        /// <summary>
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.button1 = new System.Windows.Forms.Button();
            this.button2 = new System.Windows.Forms.Button();
            this.textBox1 = new System.Windows.Forms.TextBox();
            this.SuspendLayout();
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(88, 36);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(75, 23);
            this.button1.TabIndex = 0;
            this.button1.Text = "字体";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // button2
            // 
            this.button2.Location = new System.Drawing.Point(204, 35);
            this.button2.Name = "button2";
            this.button2.Size = new System.Drawing.Size(75, 23);
            this.button2.TabIndex = 1;
            this.button2.Text = "颜色";
            this.button2.UseVisualStyleBackColor = true;
            this.button2.Click += new System.EventHandler(this.button2_Click);
            // 
            // textBox1
            // 
            this.textBox1.Location = new System.Drawing.Point(31, 123);
            this.textBox1.Multiline = true;
            this.textBox1.Name = "textBox1";
            this.textBox1.Size = new System.Drawing.Size(437, 288);
            this.textBox1.TabIndex = 2;
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(555, 455);
            this.Controls.Add(this.textBox1);
            this.Controls.Add(this.button2);
            this.Controls.Add(this.button1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.Button button2;
        private System.Windows.Forms.TextBox textBox1;
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _12_字体和颜色对话框
{
    static class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}

13、Panel

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _13_Panel
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            panel1.Visible = true;
        }

        private void button2_Click(object sender, EventArgs e)
        {
            panel1.Visible = false;
        }
    }
}

namespace _13_Panel
{
    partial class Form1
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows 窗体设计器生成的代码

        /// <summary>
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.panel1 = new System.Windows.Forms.Panel();
            this.button1 = new System.Windows.Forms.Button();
            this.button2 = new System.Windows.Forms.Button();
            this.button3 = new System.Windows.Forms.Button();
            this.checkedListBox1 = new System.Windows.Forms.CheckedListBox();
            this.label1 = new System.Windows.Forms.Label();
            this.listBox1 = new System.Windows.Forms.ListBox();
            this.linkLabel1 = new System.Windows.Forms.LinkLabel();
            this.monthCalendar1 = new System.Windows.Forms.MonthCalendar();
            this.panel1.SuspendLayout();
            this.SuspendLayout();
            // 
            // panel1
            // 
            this.panel1.Controls.Add(this.monthCalendar1);
            this.panel1.Controls.Add(this.linkLabel1);
            this.panel1.Controls.Add(this.listBox1);
            this.panel1.Controls.Add(this.label1);
            this.panel1.Controls.Add(this.checkedListBox1);
            this.panel1.Controls.Add(this.button3);
            this.panel1.Location = new System.Drawing.Point(26, 29);
            this.panel1.Name = "panel1";
            this.panel1.Size = new System.Drawing.Size(344, 400);
            this.panel1.TabIndex = 0;
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(377, 29);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(75, 23);
            this.button1.TabIndex = 1;
            this.button1.Text = "显示";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // button2
            // 
            this.button2.Location = new System.Drawing.Point(377, 85);
            this.button2.Name = "button2";
            this.button2.Size = new System.Drawing.Size(75, 23);
            this.button2.TabIndex = 2;
            this.button2.Text = "隐藏";
            this.button2.UseVisualStyleBackColor = true;
            this.button2.Click += new System.EventHandler(this.button2_Click);
            // 
            // button3
            // 
            this.button3.Location = new System.Drawing.Point(61, 3);
            this.button3.Name = "button3";
            this.button3.Size = new System.Drawing.Size(75, 23);
            this.button3.TabIndex = 0;
            this.button3.Text = "button3";
            this.button3.UseVisualStyleBackColor = true;
            // 
            // checkedListBox1
            // 
            this.checkedListBox1.FormattingEnabled = true;
            this.checkedListBox1.Location = new System.Drawing.Point(16, 32);
            this.checkedListBox1.Name = "checkedListBox1";
            this.checkedListBox1.Size = new System.Drawing.Size(120, 84);
            this.checkedListBox1.TabIndex = 1;
            // 
            // label1
            // 
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(164, 61);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(41, 12);
            this.label1.TabIndex = 2;
            this.label1.Text = "label1";
            // 
            // listBox1
            // 
            this.listBox1.FormattingEnabled = true;
            this.listBox1.ItemHeight = 12;
            this.listBox1.Location = new System.Drawing.Point(16, 145);
            this.listBox1.Name = "listBox1";
            this.listBox1.Size = new System.Drawing.Size(120, 88);
            this.listBox1.TabIndex = 3;
            // 
            // linkLabel1
            // 
            this.linkLabel1.AutoSize = true;
            this.linkLabel1.Location = new System.Drawing.Point(222, 81);
            this.linkLabel1.Name = "linkLabel1";
            this.linkLabel1.Size = new System.Drawing.Size(65, 12);
            this.linkLabel1.TabIndex = 4;
            this.linkLabel1.TabStop = true;
            this.linkLabel1.Text = "linkLabel1";
            // 
            // monthCalendar1
            // 
            this.monthCalendar1.Location = new System.Drawing.Point(96, 183);
            this.monthCalendar1.Name = "monthCalendar1";
            this.monthCalendar1.TabIndex = 5;
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(567, 453);
            this.Controls.Add(this.button2);
            this.Controls.Add(this.button1);
            this.Controls.Add(this.panel1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.panel1.ResumeLayout(false);
            this.panel1.PerformLayout();
            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.Panel panel1;
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.Button button2;
        private System.Windows.Forms.MonthCalendar monthCalendar1;
        private System.Windows.Forms.LinkLabel linkLabel1;
        private System.Windows.Forms.ListBox listBox1;
        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.CheckedListBox checkedListBox1;
        private System.Windows.Forms.Button button3;
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _13_Panel
{
    static class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}

14、记事儿本应用程序

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _14_记事儿本应用程序
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            //加载程序的时候 隐藏panel
            panel1.Visible = false;
            //取消文本框的自动换行功能
            textBox1.WordWrap = false;
        }


        /// <summary>
        /// 点击按钮的时候 隐藏panel
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button1_Click(object sender, EventArgs e)
        {
            panel1.Visible = false;
        }

        private void 显示ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            panel1.Visible = true;
        }

        private void 影藏ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            panel1.Visible = false;
        }

        List<string> list = new List<string>();
        /// <summary>
        /// 打开对话框
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void 打开ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            OpenFileDialog ofd = new OpenFileDialog();
            ofd.Title = "请选择要打开的文本文件";
            ofd.InitialDirectory = @"C:UsersSpringRainDesktop";
            ofd.Multiselect = true;
            ofd.Filter = "文本文件|*.txt|所有文件|*.*";
            ofd.ShowDialog();

            //获得用户选中的文件的路径
            string path = ofd.FileName;
            //将文件的全路径存储到泛型集合中
            list.Add(path);
            //获得了用户打开文件的文件名
            string fileName = Path.GetFileName(path);
            //将文件名放到ListBox中
            listBox1.Items.Add(fileName);
            if (path == "")
            {
                return;
            }
            using (FileStream fsRead = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Read))
            {
                byte[] buffer = new byte[1024 * 1024 * 5];
                int r = fsRead.Read(buffer, 0, buffer.Length);
                textBox1.Text = Encoding.Default.GetString(buffer, 0, r);
            }
        }



        /// <summary>
        /// 保存对话框
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void 保存ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            SaveFileDialog sfd = new SaveFileDialog();
            sfd.InitialDirectory = @"C:UsersSpringRainDesktop";
            sfd.Title = "请选择要保存的文件路径";
            sfd.Filter = "文本文件|*.txt|所有文件|*.*";
            sfd.ShowDialog();

            //获得用户要保存的文件的路径
            string path = sfd.FileName;
            if (path == "")
            {
                return;
            }
            using (FileStream fsWrite = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Write))
            {
                byte[] buffer = Encoding.Default.GetBytes(textBox1.Text);
                fsWrite.Write(buffer, 0, buffer.Length);
            }
            MessageBox.Show("保存成功");
        }

        private void 自动换行ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if (自动换行ToolStripMenuItem.Text == "☆自动换行")
            {
                textBox1.WordWrap = true;
                自动换行ToolStripMenuItem.Text = "★取消自动换行";
            }
            else if (自动换行ToolStripMenuItem.Text == "★取消自动换行")
            {
                textBox1.WordWrap = false;
                自动换行ToolStripMenuItem.Text = "☆自动换行";
            }
        }

        private void 字体ToolStripMenuItem_Click(object sender, EventArgs e)
        {

            FontDialog fd = new FontDialog();
            fd.ShowDialog();
            textBox1.Font = fd.Font;
        }

        private void 颜色ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            ColorDialog cd = new ColorDialog();
            cd.ShowDialog();
            textBox1.ForeColor = cd.Color;
        }



        /// <summary>
        /// 双击打开对应的文件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void listBox1_DoubleClick(object sender, EventArgs e)
        {
            //要获得双击的文件所对应的全路径
            string path = list[listBox1.SelectedIndex];
            using (FileStream fsRead = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Read))
            {
                byte[] buffer = new byte[1024 * 1024 * 5];
                int r = fsRead.Read(buffer, 0, buffer.Length);

                textBox1.Text = Encoding.Default.GetString(buffer, 0, r);
            }
        }
    }
}

namespace _14_记事儿本应用程序
{
    partial class Form1
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows 窗体设计器生成的代码

        /// <summary>
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.menuStrip1 = new System.Windows.Forms.MenuStrip();
            this.文件ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
            this.打开ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
            this.保存ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
            this.格式ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
            this.自动换行ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
            this.样式ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
            this.字体ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
            this.颜色ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
            this.打开记录ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
            this.显示ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
            this.影藏ToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
            this.textBox1 = new System.Windows.Forms.TextBox();
            this.listBox1 = new System.Windows.Forms.ListBox();
            this.panel1 = new System.Windows.Forms.Panel();
            this.button1 = new System.Windows.Forms.Button();
            this.menuStrip1.SuspendLayout();
            this.panel1.SuspendLayout();
            this.SuspendLayout();
            // 
            // menuStrip1
            // 
            this.menuStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.文件ToolStripMenuItem,
            this.格式ToolStripMenuItem,
            this.样式ToolStripMenuItem,
            this.打开记录ToolStripMenuItem});
            this.menuStrip1.Location = new System.Drawing.Point(0, 0);
            this.menuStrip1.Name = "menuStrip1";
            this.menuStrip1.Size = new System.Drawing.Size(588, 25);
            this.menuStrip1.TabIndex = 0;
            this.menuStrip1.Text = "menuStrip1";
            // 
            // 文件ToolStripMenuItem
            // 
            this.文件ToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.打开ToolStripMenuItem,
            this.保存ToolStripMenuItem});
            this.文件ToolStripMenuItem.Name = "文件ToolStripMenuItem";
            this.文件ToolStripMenuItem.Size = new System.Drawing.Size(44, 21);
            this.文件ToolStripMenuItem.Text = "文件";
            // 
            // 打开ToolStripMenuItem
            // 
            this.打开ToolStripMenuItem.Name = "打开ToolStripMenuItem";
            this.打开ToolStripMenuItem.Size = new System.Drawing.Size(152, 22);
            this.打开ToolStripMenuItem.Text = "打开";
            this.打开ToolStripMenuItem.Click += new System.EventHandler(this.打开ToolStripMenuItem_Click);
            // 
            // 保存ToolStripMenuItem
            // 
            this.保存ToolStripMenuItem.Name = "保存ToolStripMenuItem";
            this.保存ToolStripMenuItem.Size = new System.Drawing.Size(152, 22);
            this.保存ToolStripMenuItem.Text = "保存";
            this.保存ToolStripMenuItem.Click += new System.EventHandler(this.保存ToolStripMenuItem_Click);
            // 
            // 格式ToolStripMenuItem
            // 
            this.格式ToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.自动换行ToolStripMenuItem});
            this.格式ToolStripMenuItem.Name = "格式ToolStripMenuItem";
            this.格式ToolStripMenuItem.Size = new System.Drawing.Size(44, 21);
            this.格式ToolStripMenuItem.Text = "格式";
            // 
            // 自动换行ToolStripMenuItem
            // 
            this.自动换行ToolStripMenuItem.Name = "自动换行ToolStripMenuItem";
            this.自动换行ToolStripMenuItem.Size = new System.Drawing.Size(152, 22);
            this.自动换行ToolStripMenuItem.Text = "☆自动换行";
            this.自动换行ToolStripMenuItem.Click += new System.EventHandler(this.自动换行ToolStripMenuItem_Click);
            // 
            // 样式ToolStripMenuItem
            // 
            this.样式ToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.字体ToolStripMenuItem,
            this.颜色ToolStripMenuItem});
            this.样式ToolStripMenuItem.Name = "样式ToolStripMenuItem";
            this.样式ToolStripMenuItem.Size = new System.Drawing.Size(44, 21);
            this.样式ToolStripMenuItem.Text = "样式";
            // 
            // 字体ToolStripMenuItem
            // 
            this.字体ToolStripMenuItem.Name = "字体ToolStripMenuItem";
            this.字体ToolStripMenuItem.Size = new System.Drawing.Size(152, 22);
            this.字体ToolStripMenuItem.Text = "字体";
            this.字体ToolStripMenuItem.Click += new System.EventHandler(this.字体ToolStripMenuItem_Click);
            // 
            // 颜色ToolStripMenuItem
            // 
            this.颜色ToolStripMenuItem.Name = "颜色ToolStripMenuItem";
            this.颜色ToolStripMenuItem.Size = new System.Drawing.Size(152, 22);
            this.颜色ToolStripMenuItem.Text = "颜色";
            this.颜色ToolStripMenuItem.Click += new System.EventHandler(this.颜色ToolStripMenuItem_Click);
            // 
            // 打开记录ToolStripMenuItem
            // 
            this.打开记录ToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.显示ToolStripMenuItem,
            this.影藏ToolStripMenuItem});
            this.打开记录ToolStripMenuItem.Name = "打开记录ToolStripMenuItem";
            this.打开记录ToolStripMenuItem.Size = new System.Drawing.Size(68, 21);
            this.打开记录ToolStripMenuItem.Text = "打开记录";
            // 
            // 显示ToolStripMenuItem
            // 
            this.显示ToolStripMenuItem.Name = "显示ToolStripMenuItem";
            this.显示ToolStripMenuItem.Size = new System.Drawing.Size(152, 22);
            this.显示ToolStripMenuItem.Text = "显示";
            this.显示ToolStripMenuItem.Click += new System.EventHandler(this.显示ToolStripMenuItem_Click);
            // 
            // 影藏ToolStripMenuItem
            // 
            this.影藏ToolStripMenuItem.Name = "影藏ToolStripMenuItem";
            this.影藏ToolStripMenuItem.Size = new System.Drawing.Size(152, 22);
            this.影藏ToolStripMenuItem.Text = "隐藏";
            this.影藏ToolStripMenuItem.Click += new System.EventHandler(this.影藏ToolStripMenuItem_Click);
            // 
            // textBox1
            // 
            this.textBox1.Location = new System.Drawing.Point(0, 29);
            this.textBox1.Multiline = true;
            this.textBox1.Name = "textBox1";
            this.textBox1.Size = new System.Drawing.Size(588, 443);
            this.textBox1.TabIndex = 1;
            // 
            // listBox1
            // 
            this.listBox1.FormattingEnabled = true;
            this.listBox1.ItemHeight = 12;
            this.listBox1.Location = new System.Drawing.Point(3, 7);
            this.listBox1.Name = "listBox1";
            this.listBox1.Size = new System.Drawing.Size(133, 436);
            this.listBox1.TabIndex = 2;
            this.listBox1.DoubleClick += new System.EventHandler(this.listBox1_DoubleClick);
            // 
            // panel1
            // 
            this.panel1.Controls.Add(this.button1);
            this.panel1.Controls.Add(this.listBox1);
            this.panel1.Location = new System.Drawing.Point(0, 29);
            this.panel1.Name = "panel1";
            this.panel1.Size = new System.Drawing.Size(196, 443);
            this.panel1.TabIndex = 3;
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(143, 98);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(37, 123);
            this.button1.TabIndex = 3;
            this.button1.Text = "<<";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(588, 472);
            this.Controls.Add(this.panel1);
            this.Controls.Add(this.textBox1);
            this.Controls.Add(this.menuStrip1);
            this.MainMenuStrip = this.menuStrip1;
            this.Name = "Form1";
            this.Text = "Form1";
            this.Load += new System.EventHandler(this.Form1_Load);
            this.menuStrip1.ResumeLayout(false);
            this.menuStrip1.PerformLayout();
            this.panel1.ResumeLayout(false);
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.MenuStrip menuStrip1;
        private System.Windows.Forms.ToolStripMenuItem 文件ToolStripMenuItem;
        private System.Windows.Forms.ToolStripMenuItem 打开ToolStripMenuItem;
        private System.Windows.Forms.ToolStripMenuItem 保存ToolStripMenuItem;
        private System.Windows.Forms.ToolStripMenuItem 格式ToolStripMenuItem;
        private System.Windows.Forms.ToolStripMenuItem 自动换行ToolStripMenuItem;
        private System.Windows.Forms.ToolStripMenuItem 样式ToolStripMenuItem;
        private System.Windows.Forms.ToolStripMenuItem 字体ToolStripMenuItem;
        private System.Windows.Forms.ToolStripMenuItem 颜色ToolStripMenuItem;
        private System.Windows.Forms.ToolStripMenuItem 打开记录ToolStripMenuItem;
        private System.Windows.Forms.ToolStripMenuItem 显示ToolStripMenuItem;
        private System.Windows.Forms.ToolStripMenuItem 影藏ToolStripMenuItem;
        private System.Windows.Forms.TextBox textBox1;
        private System.Windows.Forms.ListBox listBox1;
        private System.Windows.Forms.Panel panel1;
        private System.Windows.Forms.Button button1;
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _14_记事儿本应用程序
{
    static class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}

15进程

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _15进程
{
    class Program
    {
        static void Main(string[] args)
        {
            //获得当前程序中所有正在运行的进程
            //Process[] pros = Process.GetProcesses();
            //foreach (var item in pros)
            //{
            //    //不试的不是爷们
            //    //item.Kill();
            //    Console.WriteLine(item);
            //}

            //通过进程打开一些应用程序
            //Process.Start("calc");
            //Process.Start("mspaint");
            //Process.Start("notepad");
            //Process.Start("iexplore", "http://www.baidu.com");

            //通过一个进程打开指定的文件

            ProcessStartInfo psi = new ProcessStartInfo(@"C:UsersSpringRainDesktop1.exe");
           
            //第一：创建进程对象
            Process p = new Process();
            p.StartInfo = psi;
            p.Start();
           // p.star


            Console.ReadKey();
        }
    }
}

16、线程

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace _16_线程
{
    class Program
    {
        static void Main(string[] args)
        {
            Thread.Sleep(3000);
            Console.WriteLine("Hello World");
            Console.ReadKey();
        }
    }
}

17、线程

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _17_线程
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        Thread th;
        private void button1_Click(object sender, EventArgs e)
        {
            //创建一个线程去执行这个方法
            th = new Thread(Test);
            //标记这个线程准备就绪了，可以随时被执行。具体什么时候执行这个线程，
            //由cpu决定
            //将线程设置为后台线程
            th.IsBackground = true;
            th.Start();
            th.Abort();
            th.Start();

        }

        private void Test()
        {
            for (int i = 0; i < 10000; i++)
            {
                //Console.WriteLine(i);
                textBox1.Text = i.ToString();
            }
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            //取消跨线程的访问
            Control.CheckForIllegalCrossThreadCalls = false;
        }

        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            //当你点击关闭窗体的时候，判断新线程是否为null
            if (th != null)
            {
                //结束这个线程
                th.Abort();
            }
        }

    }
}

namespace _17_线程
{
    partial class Form1
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows 窗体设计器生成的代码

        /// <summary>
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.button1 = new System.Windows.Forms.Button();
            this.textBox1 = new System.Windows.Forms.TextBox();
            this.SuspendLayout();
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(168, 70);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(75, 23);
            this.button1.TabIndex = 0;
            this.button1.Text = "button1";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // textBox1
            // 
            this.textBox1.Location = new System.Drawing.Point(168, 137);
            this.textBox1.Name = "textBox1";
            this.textBox1.Size = new System.Drawing.Size(311, 21);
            this.textBox1.TabIndex = 1;
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(638, 390);
            this.Controls.Add(this.textBox1);
            this.Controls.Add(this.button1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.Form1_FormClosing);
            this.Load += new System.EventHandler(this.Form1_Load);
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.TextBox textBox1;
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace _17_线程
{
    static class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}