摘要:
1、构建被观察者基类 class IObserver { public: virtual void ReceiveMsg(std::string msg) = 0; private: }; 2、构建被观察者1 class Student: public IObserver { public: voi 阅读全文
posted @ 2023-06-30 11:40
卖雨伞的小男孩
阅读(174)
评论(0)
推荐(0)
浙公网安备 33010602011771号