帮我解释一下程序！！！！！有分哦～～

Question

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;namespace catchMe
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
        private System.Windows.Forms.Button btn_catchMe;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null; public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent(); //
// TODO: Add any constructor code after InitializeComponent call
//
} /// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null) 
{
components.Dispose();
}
}
base.Dispose( disposing );
} #region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.btn_catchMe = new System.Windows.Forms.Button();
this.SuspendLayout();
// 
// btn_catchMe
// 
this.btn_catchMe.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
this.btn_catchMe.ForeColor = System.Drawing.Color.Red;
this.btn_catchMe.Location = new System.Drawing.Point(144, 136);
this.btn_catchMe.Name = "btn_catchMe";
this.btn_catchMe.Size = new System.Drawing.Size(104, 55);
this.btn_catchMe.TabIndex = 0;
this.btn_catchMe.Text = "有本事就来抓我呀";
this.btn_catchMe.Click += new System.EventHandler(this.btn_catchMe_Click);
// 
// Form1
// 
this.AutoScaleBaseSize = new System.Drawing.Size(8, 18);
this.BackColor = System.Drawing.Color.Black;
this.ClientSize = new System.Drawing.Size(389, 350);
this.Controls.Add(this.btn_catchMe);
this.Name = "Form1";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "catch me简易小游戏";
this.MouseMove += new System.Windows.Forms.MouseEventHandler(this.Form1_MouseMove);
this.ResumeLayout(false); }
#endregion /// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main() 
{
Application.Run(new Form1());
}        private void btn_catchMe_Click(object sender, System.EventArgs e)
        {
            MessageBox.Show("抓到我了，算你聪明！","抓到了");
        }        private void Form1_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
        {
            int border = 50;
            int x = e.X;
            int y = e.Y;
            int left = btn_catchMe.Left;
            int right = btn_catchMe.Right;
            int top = btn_catchMe.Top;
            int bottom = btn_catchMe.Bottom;
            /* 鼠标到按钮附近(20个象素) */
            if( x > left - border && x < right + border && y > top - border && y < bottom + border)
            {
                btn_catchMe.Top += (y > top ? -20 : 20);
                if(btn_catchMe.Top > Form1.ActiveForm.Size.Height || btn_catchMe.Bottom < 0)
                {
                    btn_catchMe.Top = Form1.ActiveForm.Size.Height/2;
                }
                btn_catchMe.Left += (x > left ? -20 : 20);
                if(btn_catchMe.Left > Form1.ActiveForm.Size.Width || btn_catchMe.Right < 0)
                {
                    btn_catchMe.Left = Form1.ActiveForm.Size.Width/2;
                }            }
        }
}
}
要说的详细一点～～～～～～
最好说明各个语句是什么作用？？？？？？？？？？

Answer 1

//入口函数，启动Form
static void Main() 
{
Application.Run(new Form1());
}//Click事件
        private void btn_catchMe_Click(object sender, System.EventArgs e)
        {
　／／给出一个消息
            MessageBox.Show("抓到我了，算你聪明！","抓到了");
        }
／／ 鼠表在form上移动事件
        private void Form1_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
        {
            int border = 50;
鼠表的x坐标,y坐标
            int x = e.X;
            int y = e.Y;
／／上下左右的位置
            int left = btn_catchMe.Left;
            int right = btn_catchMe.Right;
            int top = btn_catchMe.Top;
            int bottom = btn_catchMe.Bottom;
            /* 鼠标到按钮附近(20个象素) */
            if( x > left - border && x < right + border && y > top - border && y < bottom + border)
            {
                btn_catchMe.Top += (y > top ? -20 : 20);
                if(btn_catchMe.Top > Form1.ActiveForm.Size.Height || btn_catchMe.Bottom < 0)
                {
                    btn_catchMe.Top = Form1.ActiveForm.Size.Height/2;
                }
                btn_catchMe.Left += (x > left ? -20 : 20);
                if(btn_catchMe.Left > Form1.ActiveForm.Size.Width || btn_catchMe.Right < 0)
                {
                    btn_catchMe.Left = Form1.ActiveForm.Size.Width/2;
                }            }
        }
}
}