我把你的TestAnswer类修改成这样可以运行了package as3{ import flash.display.MovieClip; public class TestAnswer extends MovieClip {public var answer:Number=42;public function TestAnswer():void{ trace(answer);} }}你的版本这两句有问题var Mytest:TestAnswer=new TestAnswer();trace(Mytest.answer); 因为这两行是执行过程代码,一定要放在函数体里面。然后在...