2020-10-08

#include<iostream> using namespace std; class Complex { public: Complex(double r=0,double i=0){real=r; imag=i;} Complex(const Complex &c2) { imag=c2.imag; real=c2.real; } friend Complex operator+(const Complex &c1,const Complex &c2); friend Complex operator-(const Complex &c1,const Complex &c2); friend Complex operator*(const Complex &c1,const Complex &c2); friend Complex operator/(const Complex &c1,const Complex &c2); void display(); private: double real; double imag; }; //下面定义成员函数 Complex operator+(const Complex &c1,const Complex &c2) { return Complex(c1.real+c2.real,c1.imag+c2.imag); } Complex operator-(const Complex &c1,const Complex &c2) { return Complex(c1.real-c2.real,c2.imag-c2.imag); } Complex operator*(const Complex &c1,const Complex &c2) { return Complex(c1.real*c2.real,c2.imag-c2.imag); } Complex operator/(const Complex &c1,const Complex &c2) { return Complex(c1.real/c2.real,c1.imag/c2.imag); } void Complex::display() { cout<<this->real<<","<<this->imag<<" "<<endl; } //下面定义用于测试的main()函数 int main() { Complex c1(3,4),c2(5,-10),c3; double d=11; cout<<"c1="; c1.display(); cout<<"c2="; c2.display(); cout<<"d="<<d<<endl<<endl; cout<<"下面是重载运算符的计算结果: "<<endl; c3=c1+c2; cout<<"c1+c2="; c3.display(); cout<<"c1+d="; (c1+d).display(); cout<<"d+c1="; (d+c1).display(); c3=c1-c2; cout<<"c1-c2="; c3.display(); cout<<"c1-d="; (c1-d).display(); cout<<"d-c1="; (d-c1).display(); c3=c1*c2; cout<<"c1*c2="; c3.display(); cout<<"c1*d="; (c1*d).display(); cout<<"d*c1="; (d*c1).display(); c3=c1/c2; cout<<"c1/c2="; c3.display(); cout<<"c1/d="; (c1/d).display(); cout<<"d/c1="; (d/c1).display(); return 0; }