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package
{
import com.ui.Ball;

import flash.display.Sprite;

public class Main extends Sprite
{
var a:Ball = new Ball(0x000000,20);
var b:Ball = new Ball(0x4c1b1b,20);
var c:Ball = new Ball(0xf6e497,20);
var d:Ball = new Ball(0xfcfae1,20);
var e:Ball = new Ball(0xbd8d46,20);

public function Main():void
{
init();
}
private function init():void
{
a.x = 100;
a.y = 100;
b.x = 120;
b.y = 120;
c.x = 140;
c.y = 140;
d.x = 160;
d.y = 160;
e.x = 180;
e.y = 180;

this.addChild(a); //aÉî¶È0£¨×îµ×²ã£©
this.addChild(c); //cÉî¶È1
this.addChild(e); //eÉî¶È2£¨×îÉϲ㣩

//ÉèÖÃbµÄÉî¶ÈΪ1ºó£¬cºÍeÉî¶È×Ô¶¯Ïòºó+1
this.addChildAt(b,1);

trace(this.getChildIndex(a)); //aÉî¶È0
trace(this.getChildIndex(c)); //cÉî¶È2
trace(this.getChildIndex(e)); //eÉî¶È3

this.addChild(d);

//Ö±½Óµ÷»»¿ÉÊÓ¶ÔÏódºÍeµÄÉî¶È(µ÷»»ºóÉî¶Èa0,b1,c2,d3,e4)
this.swapChildren(d,e);

//½«µ¹ÊýµÚһλµÄÉî¶ÈºÍµ¹ÊýµÚ¶þλÉî¶ÈÉϵĿÉÊǶÔÏó¶Ôµ÷
this.swapChildrenAt((this.numChildren-2),(this.numChildren-1));

//½«cÖö¥
this.setChildIndex(c,this.numChildren-1);

}

}
}