摘要: 1 #include <iostream> 2 3 using namespace std; 4 5 class Pet 6 { 7 public: 8 virtual void Speak(){cout<<"How does a pet speak?"<<endl;} 9 }; 10 11 cla 阅读全文
posted @ 2020-04-28 23:30 Conan-jine 阅读(291) 评论(0) 推荐(0) 编辑