学flex写的第一个小程序

<?xml version="1.0" encoding="utf-8"?>

	

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" width="474" height="526" creationComplete="initApp();">

	<mx:Script>

        <![CDATA[

        	import flash.media.Sound;

        	

        	private var my_sound:Sound=new Sound();

        	private var my_sound1:Sound=new Sound();

        	var zmb:Array = new Array("A", "B", "C", "D", "E", "F", "G", "H", 

        						"I", "J", "K", "L", "M", "N", "O", "P", "Q",

        						 "R", "S", "T", "U", "V", "W", "X", "Y", "Z");

        	var fenshu:int = 0;

        	var b:Boolean = false;

        	

        	private function initApp():void

        	{

            	// 最好把事件绑定到需要响应事件的组件上, 而不是 application

           		// 否则文本框中也会响应按键动作,

            	// 尝试把 keyTest 改成 application 然后在文本框中输入

            	//click="event.target.setFocus();"

            	//stage.focus = this;

            	panel.addEventListener(KeyboardEvent.KEY_UP, keyHandler);

            	my_sound.load(new URLRequest("bz.mp3"));

            	my_sound1.load(new URLRequest("ok.mp3"));

        	}

        

        	public function startGame():void {

        		start.visible = false;

        		close.visible = false;

        		gameName.visible = false;

        		panel.visible = true;

        		stage.focus = panel;

        		run();

        	}

        	

        	public function reinit():void {

        		start.visible = true;

        		close.visible = true;

        		gameName.visible = true;

        		panel.visible = false;

        	}

        	

        	private function closeIE():void {

            	var request:URLRequest = new URLRequest("javascript:window.close()");

            	navigateToURL(request,"_self");

            }

            

            private function keyHandler(event:KeyboardEvent):void {

            	super.keyDownHandler(event);

            	trace(event.keyCode.toString() + ":" + moveTag.text.charCodeAt(0).toString());

            	if (event.keyCode.toString().localeCompare(moveTag.text.charCodeAt(0).toString()) == 0) {

            		fenshu++;

            		fen.text = "计分" + fenshu;

            		b = true;

            		moveEffect2.stop();

            	}

            	

          		switch (event.keyCode){

                    /* case 27:

                    	reinit();

                    	break; */

                    case 13:

                    	reinit();

                    	break;

      			}

            }

            

            private function run():void {

            	fenshu = 0;

            	fen.text = "计分:0";

            	moveEffect2.target = moveTag;

            	moveEffect2.duration = suiji();

            	moveEffect2.play();

            	b = false;

            }

            

            private function endEffectHandler():void {

            	if (b) 

            		my_sound1.play();

            	 else

            		my_sound.play();

            	

            	b = false;

            	var index:int = Math.round(Math.random()*26) - 1;

            	moveTag.visible = false;

            	moveEffect3.yFrom = 0;

            	moveEffect2.duration = suiji();

            	moveEffect2.play();

            	moveTag.text = zmb[index];

            	moveTag.visible = true;

            }

            

            private function suiji():int {

            	return Math.round(Math.random()*1000) + 1000;

            }

        ]]>

    </mx:Script>

	<mx:Parallel id="moveEffect1">

		<mx:Move xFrom="0" duration="1000" />

    </mx:Parallel>      

	<mx:Sequence id="moveEffect2" effectEnd="endEffectHandler();">

		<mx:Move id="moveEffect3" yFrom="0" yTo="480"/>	

    </mx:Sequence>  

	<mx:Button id="close" visible="true" x="375" y="493" label="结束" width="89" height="23" fontSize="12" click="closeIE();"/>

	<mx:Button id="start" visible="true" x="375" y="462" label="开始" width="89" height="23" fontSize="12" click="startGame();"/>

	<mx:Label id="gameName" visible="true" creationCompleteEffect="{moveEffect1}" text="打字游戏" width="131" height="39" fontSize="24" textAlign="center" fontWeight="bold" fontFamily="Verdana" horizontalCenter="-8" verticalCenter="-234"/>

	<mx:Canvas  id="panel" visible="false" width="100%" height="100%" click="event.target.setFocus();">

		<mx:Label id="moveTag" x="209" y="0" fontWeight="bold" text="A" fontSize="23" width="29" />

		<mx:Label id="fen" x="354" y="10" width="110" height="27" fontSize="19" />

	</mx:Canvas>

	

	

	

</mx:Application>