摘要：
先帖一个课堂作业，运算符重载、友元函数：#include class Complex{private: double rel,img;public: Complex(double r=0,double i=0) { rel=r; img=i; } void show(void) { cout=0)cout<<"+"; if(img)cout<<img<<"i"; cout<<endl; }; friend Complex operator+(Complex &c1,Complex &c2); 阅读全文