摘要：
//An example of a simple double linked list using OOP techniques#include using namespace std; struct Node{ double value; Node *N,*P; Node(double y)... 阅读全文
摘要：
//friend function example source code//role of friend function.#include using namespace std;class x{ protected: int x1; public: x(int a1):x1(a1){}... 阅读全文