phone2.screen(6.0f)这里的phone2改成phone行吗,为什么
小白,这里有个疑问,还有我和老师写的一样但是出现错误the method setScreen(float)in the type Telphone is not applicable for the arguments ()
小白,这里有个疑问,还有我和老师写的一样但是出现错误the method setScreen(float)in the type Telphone is not applicable for the arguments ()
2017-05-18
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