2021.11.16 .net——Windows应用程序开发

一、今日学习内容

    今天完成了实验三

1. 掌握窗口控件的使用方法；

2. 掌握Windows 的编程基础。 

  

1．编写一个计算器，练习在窗体上添加控件、调整控件的布局，设置或修改控件属性，

编写事件处理程序的方法。 

(1)新建 windows 应用程序。在窗体 Form 上拖放一个 TextBox 控件、十六个 Button 控

件，整个窗体布局如下图所示。 

在计算器中，增加四个功能键：x2，sqrt，log, ln 四个键，分别计算求平方，开方，

log，ln 值

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

namespace WindowsFormsApplication1
{
    public partial class Form3 : Form
    {
        public Form3()
        {
            InitializeComponent();
        }

        private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            richTextBox1.Text += "专业：" + listBox1.SelectedItem + "\n";
        }

        private void groupBox1_Enter(object sender, EventArgs e)
        {

        }

        private void groupBox2_Enter(object sender, EventArgs e)
        {

        }

        

        private void richTextBox1_TextChanged(object sender, EventArgs e)
        {

        }

        private void radioButton2_CheckedChanged(object sender, EventArgs e)
        {
            if (radioButton2.Checked == true)
                richTextBox1.Text += "性别：" + radioButton1.Text + "\n";
        }

        private void radioButton1_CheckedChanged(object sender, EventArgs e)
        {
            if (radioButton1.Checked == true)
                richTextBox1.Text += "性别：" + radioButton1.Text + "\n";
        }

        private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == 13) //如果键入回车键，则向richTextBox1中添加姓名
                richTextBox1.Text += "姓名：" + textBox1.Text + "\n";
        }

        private void textBox2_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == 13) //如果键入回车键，则向richTextBox1中添加学号
                richTextBox1.Text += "学号：" + textBox2.Text + "\n";
        }

        private void comboBox1_KeyPress(object sender, KeyPressEventArgs e)
        {
            if ((e.KeyChar == 13) && comboBox1.Text != "")
                richTextBox1.Text += "班级：" + comboBox1.Text + "\n";
        }

        private void checkBox1_CheckedChanged(object sender, EventArgs e)
        {
            if (checkBox1.Checked == true)
                richTextBox1.Text += "爱好:" + checkBox1.Text + "\n";
        }

        private void checkBox2_CheckedChanged(object sender, EventArgs e)
        {
            if (checkBox2.Checked == true)
                richTextBox1.Text += "爱好:" + checkBox2.Text + "\n";
        }

        private void checkBox3_CheckedChanged(object sender, EventArgs e)
        {
            if (checkBox3.Checked == true)
                richTextBox1.Text += "爱好:" + checkBox3.Text + "\n";
        }

        private void checkBox4_CheckedChanged(object sender, EventArgs e)
        {
            if (checkBox4.Checked == true)
                richTextBox1.Text += "爱好:" + checkBox4.Text + "\n";
        }

        private void checkBox5_CheckedChanged(object sender, EventArgs e)
        {
            if (checkBox5.Checked == true)
                richTextBox1.Text += "爱好:" + checkBox5.Text + "\n";
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //将文件以RTF格式保存到指定路径下
            richTextBox1.SaveFile(@"F:\.net实验三\xinxi.rtf", RichTextBoxStreamType.RichText);
        }

        private void button2_Click(object sender, EventArgs e)
        {
            richTextBox1.Clear();
        }

        private void button3_Click(object sender, EventArgs e)
        {
            //将指定文件加载到RichTextBox中
            richTextBox1.LoadFile(@"F:\.net实验三\xinxi.rtf", RichTextBoxStreamType.RichText);
        }

        private void Form3_Load(object sender, EventArgs e)
        {

        }

        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {

        }
      
    }
}

         

2．自己设计并编写一个 Windows 应用程序，要求用到 TextBox、GroupBox、

RadioButton、CheckBox、ComboBox、ListBox 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.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form3 : Form
    {
        public Form3()
        {
            InitializeComponent();
        }

        private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            richTextBox1.Text += "专业：" + listBox1.SelectedItem + "\n";
        }

        private void groupBox1_Enter(object sender, EventArgs e)
        {

        }

        private void groupBox2_Enter(object sender, EventArgs e)
        {

        }

        

        private void richTextBox1_TextChanged(object sender, EventArgs e)
        {

        }

        private void radioButton2_CheckedChanged(object sender, EventArgs e)
        {
            if (radioButton2.Checked == true)
                richTextBox1.Text += "性别：" + radioButton1.Text + "\n";
        }

        private void radioButton1_CheckedChanged(object sender, EventArgs e)
        {
            if (radioButton1.Checked == true)
                richTextBox1.Text += "性别：" + radioButton1.Text + "\n";
        }

        private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == 13) //如果键入回车键，则向richTextBox1中添加姓名
                richTextBox1.Text += "姓名：" + textBox1.Text + "\n";
        }

        private void textBox2_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == 13) //如果键入回车键，则向richTextBox1中添加学号
                richTextBox1.Text += "学号：" + textBox2.Text + "\n";
        }

        private void comboBox1_KeyPress(object sender, KeyPressEventArgs e)
        {
            if ((e.KeyChar == 13) && comboBox1.Text != "")
                richTextBox1.Text += "班级：" + comboBox1.Text + "\n";
        }

        private void checkBox1_CheckedChanged(object sender, EventArgs e)
        {
            if (checkBox1.Checked == true)
                richTextBox1.Text += "爱好:" + checkBox1.Text + "\n";
        }

        private void checkBox2_CheckedChanged(object sender, EventArgs e)
        {
            if (checkBox2.Checked == true)
                richTextBox1.Text += "爱好:" + checkBox2.Text + "\n";
        }

        private void checkBox3_CheckedChanged(object sender, EventArgs e)
        {
            if (checkBox3.Checked == true)
                richTextBox1.Text += "爱好:" + checkBox3.Text + "\n";
        }

        private void checkBox4_CheckedChanged(object sender, EventArgs e)
        {
            if (checkBox4.Checked == true)
                richTextBox1.Text += "爱好:" + checkBox4.Text + "\n";
        }

        private void checkBox5_CheckedChanged(object sender, EventArgs e)
        {
            if (checkBox5.Checked == true)
                richTextBox1.Text += "爱好:" + checkBox5.Text + "\n";
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //将文件以RTF格式保存到指定路径下
            richTextBox1.SaveFile(@"F:\.net实验三\xinxi.rtf", RichTextBoxStreamType.RichText);
        }

        private void button2_Click(object sender, EventArgs e)
        {
            richTextBox1.Clear();
        }

        private void button3_Click(object sender, EventArgs e)
        {
            //将指定文件加载到RichTextBox中
            richTextBox1.LoadFile(@"F:\.net实验三\xinxi.rtf", RichTextBoxStreamType.RichText);
        }  
    }
}

    

 

 二、遇到的问题

对于代码不熟悉，一些事件的匹配没有对上，导致运行不对，通过修改成功运行。