[AS3]as3中第三方类库对数字和字符串进行格式化源代码

用NumberFormat对象的format()与currencyFormat()方法。由于是第三方类库，测试过程中发现有些不完善。自己写了一个格式化货币的方法

package { 
    import flash.display.Sprite; 
     
    public class Sample1118 extends Sprite 
    { 
        public function Sample1118() 
        { 
            var money:Number = 26591234569.5678; 
            trace(formatString(money));//26,591,234,569.57  
            var i:int = 1234; 
            trace(formatString(i));//cuplayer.com提示1,234.00  
            trace(formatString("fox")); 
        } 
        private function formatString(obj:Object):String 
        { 
            if(obj  is  int||obj  is  uint||obj  is  Number) 
            { 
                var money:Number = obj  as  Number; 
                var str:String = (Math.round(money/0.01) * 0.01).toString(); 
                var _index:int = str.indexOf("."); 
                var cursor:int = 0; 
                if(_index>-1) 
                { 
                    cursor = _index; 
                    strstr = str.substring(0,_index + 3); 
                    while(str.length < _index+3) 
                    { 
                        strstr = str + "0"; 
                    }            
                } 
                else 
                { 
                    cursor = str.length; 
                    strstr = str+".00"; 
                } 
                var arrStr:Array = new Array(); 
                while(cursor-3>=0) 
                { 
                    arrStr.push(str.substr(cursor-3,3)); 
                    cursorcursor = cursor-3; 
                } 
                if(cursor>0) 
                { 
                    arrStr.push(str.substr(0,cursor)); 
                } 
                arrStr.reverse(); 
                return arrStr.join(',') + str.substr(str.indexOf(".")); 
            } 
            else 
            { 
                return obj.toString(); 
            } 
        }    
    } 
}