as 代码片段如下 class include.DepthSet { public static var group : Object = new Object () // //构造函数 function DepthSet () { } // //设置该MC置顶显示 public static function setTop (groupName : String, mcName : MovieClip) : Void { //判断是否有该组 if (group [groupName] == undefined) { group [groupName] =