青菜炒豆腐

#include "iostream" using namespace std; class A{ private: int i; int a; int b; public: A(int a, int b) { this->a = a; this->b = b; } public: friend v...

#include "iostream" using namespace std; class Complex { public: int a; int b; public: Complex(int a = 0, int b = 0) { this->a = a; this->b = b; } void pr...