一个简单的flash来回动画

gu1.x=47.4;gu1.y=119.55;gu2.x=587.4;gu2.y=119.55;gu1.addEventListener(Event.ENTER_FRAME,ydz);gu2.addEventListener(Event.ENTER_FRAME,ydy);function ydz(evt:Event):void{    if(gu1.x<587.4)    {        gu1.x+=5;    }    else    {        gu1.x=47.4;    }}function ydy(evt:Event):void{    if(gu2.x>47.4)    {        gu2.x-=5;    }    else    {        gu2.x=587.4;    }}

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