Flex ArgumentError: Error #1063: Argument count mismatch on ... :: ...

Flex ArgumentError: Error #1063: Argument count mismatch on ... :: ...

        .
        .
        .
         //改变状态
        this.addEventListener(MouseEvent.DOUBLE_CLICK,changeImg);
        .   
        .
        .
//改变

public function changeImg():void {

     arguments; //如果方法没有参数，则必须在方法中添加这个声明

    if(this.source == img0) {

        this.source = img1;

    } else {

            this.source = img0;

      }

        }