摘要: 观察验证实验 #include <iostream> #include <typeinfo> class Graph { public: void draw() { std::cout << "Graph::draw() : just as an interface\n"; } }; class R 阅读全文
posted @ 2021-11-30 22:41 Daisy_iris 阅读(33) 评论(2) 推荐(0)