Flex中字符串trim方法

		
		
		//去除左边空格
		public static function leftTrim(s:String):String{    
			var i:Number=0;   
			while(s.charCodeAt(i)==32 || s.charCodeAt(i)==13 || s.charCodeAt(i)==10 || s.charCodeAt(i)==9){    
				i++;   
			}    
			return s.substring(i,s.length);   
		} 
		//去除右边空格
		public static function rightTrim(s:String):String{    
			var i:Number=s.length-1;   
			while(s.charCodeAt(i)==32 || s.charCodeAt(i)==13 || s.charCodeAt(i)==10 ||s.charCodeAt(i)==9){    
				i--;   
			}    
			return s.substring(0,i+1);   
		}
		//去除空格
		public static function trim(s:String):String{
			return leftTrim(rightTrim(s));   
		}