Actress类应该是静态类么。。
为什么我的new Thread(new Actress(), "Ms.Runnable");这句上的new Actress()爆出这个下面这个错误。但我把Actress类前面加成static就好了,老师的Actress不是静态类但却没有报错。。 No enclosing instance of type Actor is accessible. Must qualify the allocation with an enclosing instance of type Actor (e.g. x.new A() where x is an instance of Actor).