form1.cs

Visual C#2005程序设计教程

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

namespace WinApp10_3鼠标事件
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_MouseDown(object sender, MouseEventArgs e)
        {
            /* 
            if (e.Button == MouseButtons.Right && e.Clicks == 2)
                this.Close();*/
            string str1="",str2="";
            switch (e.Button)   // 判断用户按下了哪个鼠标键
            {
                case MouseButtons.Right: str1 = "右"; break;
                case MouseButtons.Left: str1 = "左"; break;
            }
            switch (e.Clicks)   // 判断用户连续按下并释放了几次鼠标键
            {
                case 1: str2 = "单"; break;
                case 2: str2 = "双"; break;
            }
            label1.Text = "您" + str2 + "击了鼠标" + str1 + "键！";
            label1.Left = (this.Width - label1.Width) / 2;
        }
    }
}