摘要：实验任务2 #include <iostream> #include <typeinfo> // definitation of Graph class Graph { public: virtual void draw() { std::cout << "Graph::draw() : just 阅读全文

摘要：实验任务四 #ifndef VECTOR_INT_H #define VECTOR_INT_H #include<iostream> using namespace std; class vector_int{ public: vector_int(int n,int a=0); vector_in 阅读全文