摘要: 1.关于重载运算符 2.包含与委托(不太明白) class Program { class Radio { protected bool on_off; public void On() { if (!on_off )Console .WriteLine ("Radio is now on!"); 阅读全文
posted @ 2020-02-15 22:26 ATLL 阅读(766) 评论(1) 推荐(0) 编辑