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源文件及 PPT 下载：

http://www.fs2you.com/files/76b3bea8-41d3-11dd-ba6f-001143e7b41c/

代码发布（数字版）：

Card.as：

package {
 import flash.display.Sprite;
 import flash.text.TextField;
 import flash.text.TextFormat;
 import flash.filters.*;
 import flash.events.MouseEvent;

 public class Card extends Sprite {
  public var id:int;
  public var W:Number = 30;
  public var H:Number = 40;
  public var i:int;
  public var j:int;
  public var TargetCard:Card;
  private var color:uint = 0xcccccc;
  public var Path:Array = new Array();
  private var pressed:Boolean = false;
  
  public var line:Sprite = new Sprite();
  public function Card(id:int) {
   this.id = id;
   init();
  }

  function init():void {
   graphics.beginFill(color);
   graphics.drawRect(0,0,W,H);
   graphics.endFill();
   var Text:TextField = new TextField();
   Text.text = String(id);
   Text.selectable = false;
   Text.autoSize = "left";

   var tf:TextFormat = new TextFormat(null,25);
   // tf.size = 25;

   Text.setTextFormat(tf);
   addChild(Text);
   
   addEventListener(MouseEvent.MOUSE_OVER, MouseOver);
   addEventListener(MouseEvent.MOUSE_OUT, MouseOut);
  }

  function setIndex(a:int, b:int):void {
   i = a;
   j = b;
  }
  function Pressed():void {
   pressed = true;
  }
  function UnPressed():void {
   p