C#简单打字练习程序CH10

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Threading;

namespace MoveChar
{
 /// <summary>
 /// frmMoveChar 的摘要说明。
 /// </summary>
 public class frmMoveChar : System.Windows.Forms.Form
 {
  private System.Windows.Forms.Button bntStart;
  private System.Windows.Forms.Button bntExit;

  private System.Windows.Forms.Timer timerStart;
  private System.Windows.Forms.Label lblChar;
  private System.Windows.Forms.Panel pnlContainer;
  private System.ComponentModel.IContainer components;

  public frmMoveChar()
  {
   //
   // Windows 窗体设计器支持所必需的
   //
   InitializeComponent();

   //
   // TODO: 在 InitializeComponent 调用后添加任何构造函数代码
   //
  }

  /// <summary>
  /// 清理所有正在使用的资源。
  /// </summary>
  protected override void Dispose( bool disposing )
  {
   if( disposing )
   {
    if(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.bntStart = new System.Windows.Forms.Button();
   this.bntExit = new System.Windows.Forms.Button();
   this.timerStart = new System.Windows.Forms.Timer(this.components);
   this.pnlContainer = new System.Windows.Forms.Panel();
   this.SuspendLayout();
   //
   // bntStart
   //
   this.bntStart.Location = new System.Drawing.Point(384, 24);
   this.bntStart.Name = "bntStart";
   this.bntStart.Size = new System.Drawing.Size(88, 24);
   this.bntStart.TabIndex = 1;
   this.bntStart.Text = "开始";
   this.bntStart.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.bntStart_KeyPress);
   this.bntStart.Click += new System.EventHandler(this.bntStart_Click);
   //
   // bntExit
   //
   this.bntExit.Location = new System.Drawing.Point(384, 64);
   this.bntExit.Name = "bntExit";
   this.bntExit.Size = new System.Drawing.Size(88, 24);
   this.bntExit.TabIndex = 2;
   this.bntExit.Text = "退出";
   this.bntExit.Click += new System.EventHandler(this.bntExit_Click);
   //
   // timerStart
   //
   this.timerStart.Tick += new System.EventHandler(this.timerStart_Tick);
   //
   // pnlContainer
   //
   this.pnlContainer.BackColor = System.Drawing.SystemColors.ActiveCaptionText;
   this.pnlContainer.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
   this.pnlContainer.Location = new System.Drawing.Point(8, 8);
   this.pnlContainer.Name = "pnlContainer";
   this.pnlContainer.Size = new System.Drawing.Size(368, 432);
   this.pnlContainer.TabIndex = 3;
   //
   // frmMoveChar
   //
   this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
   this.ClientSize = new System.Drawing.Size(480, 453);
   this.Controls.Add(this.pnlContainer);
   this.Controls.Add(this.bntExit);
   this.Controls.Add(this.bntStart);
   this.Name = "frmMoveChar";
   this.Text = "frmMoveChar";
   this.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.frmMoveChar_KeyPress);
   this.Load += new System.EventHandler(this.frmMoveChar_Load);
   this.ResumeLayout(false);

  }
  #endregion

  private void frmMoveChar_Load(object sender, System.EventArgs e)
  {
  
  }

  #region timer 控制 label 产生
  private void timerStart_Tick(object sender, System.EventArgs e)
  {

   Random rand = new Random(System.DateTime.Now.Second);

   char ch = (char)rand.Next(65,90);
   string str = ch.ToString();

   int x = rand.Next(0,280);

   //
   // lblChar
   //
   this.lblChar = new Label();
   this.lblChar.BackColor = System.Drawing.Color.FromArgb(((System.Byte)(255)), ((System.Byte)(224)), ((System.Byte)(192)));
   this.lblChar.Font = new System.Drawing.Font("宋体", 15.75F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
   this.lblChar.Location = new System.Drawing.Point(x, 0);
   this.lblChar.Name = "lblChar";
   this.lblChar.Size = new System.Drawing.Size(20, 20);
   this.lblChar.Text = str;
   this.lblChar.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
   this.pnlContainer.Controls.Add(this.lblChar);
   this.lblChar.Visible = true;
   Thread objThread = new Thread(new ThreadStart(new MoveChar(this.lblChar).Move));
   objThread.Start();

  }
  #endregion

  // 开始打字练习
  private void bntStart_Click(object sender, System.EventArgs e)
  {
   this.timerStart.Enabled = true;
   this.timerStart.Interval = 1000;
   this.Focus();
  }

  
  #region 移动 label 和删除 label ，销毁线程
  class MoveChar
  {
   Label lblTemp;
   public MoveChar(Label lbl)
   {
    this.lblTemp = lbl;
   }

   public void Move()
   {
    while(true)
    {
     Thread.Sleep(100);
     this.lblTemp.Top += 5;
     if(this.lblTemp.Top >= 380)
     {
      this.lblTemp.Visible = false;
      this.lblTemp.Dispose();
      Thread.CurrentThread.Abort();
      break;
     }
    }
   }

  }
  #endregion

  // 程序入口
  public static void Main()
  {
   Application.Run(new frmMoveChar());
  }

  // 退出
  private void bntExit_Click(object sender, System.EventArgs e)
  {
   Application.Exit();
  }

  private void frmMoveChar_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e)
  {
   
  }

  // 接受用户键盘输入
  private void bntStart_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e)
  {
   foreach(Label lbl in this.pnlContainer.Controls)
   {
    if(e.KeyChar.ToString().ToUpper().Equals(lbl.Text))
    { 
     lbl.Visible = false;
     lbl.Top = 390;
     break;
    }
   }
  }

 }
}