as3.0 雪花随机下落

as3.0 雪花随机飘落： package { import flash.display.MovieClip; import flash.events.*; public class SNOW extends MovieClip{ var speedx:Number=0; var speedy:Number=0; public function SNOW() { speedx=5*Math.random()-0.5; speedy=5*Math.random(); this.addEventListener(Event.ENTER_FRAME,Mot); // constructor code } function Mot(e:Event){ this.x+=speedx; this.y+=speedy; if(this.y>400){ init(); } } function init(){ this.y=0; this.x=Math.random()*550; } } }

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2012-10-20 16:12  snow\
     文件         522  2012-10-20 16:12  snow\SNOW.as
     文件        6737  2012-11-17 11:23  snow\snow.fla
     文件        2273  2012-11-17 11:23  snow\snow.swf