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  • 定时器计数

    1、添加几个控件(3个Lable、一个combobox控件、一个Button控件、一个progressBar控件以及一个timer定时器控件)

    2、combobox控件属性下修改DropDownStyle属性为DropDownList、timer控件修改属性Interval 100改为1000毫秒、窗体固定FormBorderStyle属性改为FixedSingle

    3、代码实现

    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 _02计时器
    {
        public partial class Form1 : Form
        {
            int count;
            int time;
    
            public Form1()
            {
                InitializeComponent();
            }
    
            private void Form1_Load(object sender, EventArgs e)
            {
                int i;
                for(i=1;i<=10;i++)
                {
                  comboBox1.Items.Add(i.ToString()+"");
                }
                comboBox1.Text = "1 秒";
            }
    
            private void timer1_Tick(object sender, EventArgs e)
            {
                count++;
                label3.Text = (time - count).ToString()+"";
                progressBar1.Value = count;
                if (count == time)
                {
                    timer1.Stop();
                    MessageBox.Show("时间到", "提示");
                }
            }
    
            private void button1_Click(object sender, EventArgs e)
            {
                string str = comboBox1.Text;
                time = Convert.ToInt16(str.Substring(0, 2));
                progressBar1.Maximum = time;
                timer1.Start();
            }
           
        }
    }

       

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  • 原文地址:https://www.cnblogs.com/yihujiu/p/5768100.html
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