AS3

构建一个单例模式
package
{
    public class Single
    {
        private static var _boolean:Boolean=true;//控制开始就创建一个单例
        private static var _single:Single;
        public function Single():void
        {
             if(_boolean)
             {
               throw new Error("--------");
              }
         }
         public static function getInstance():Single
         {
                if(_single ==null)
                {
                   _boolean=false;
                   _single=new Single();
                   _boolean=true;  
                 }
                
                  return _single;
         }
    }    
}

评论

1 楼 全能骑士 2010-04-13  

静态方法getInstance()怎么能访问到private var _boolean？？？