摘要：task2.cpp #include <iostream> #include <typeinfo> // definitation of Graph class Graph { public: void draw() { std::cout << "Graph::draw() : just as a 阅读全文

摘要：task4.hpp #include <iostream> using std::cout; using std::endl; class Vector_int { public: Vector_int(int n); Vector_int(int n,int m); ~Vector_int(); 阅读全文