第九周项目一----实现复数类运算符重载

来源：互联网发布：linux sys types.h 编辑：程序博客网时间：2024/05/29 17:03

/** 程序的版权和版本声明部分* Copyright (c)2013, 烟台大学计算机学院学生* All rightsreserved.* 文件名称： object.cpp* 作者：赵晓晨* 完成日期： 2013年05月07日* 版本号： v1.0* 输入描述：无* 问题描述：无* 程序输出：无*/#include <iostream>#include <Cstring>using namespace std;class Complex{public: Complex( ){real=0;imag=0;} //Complex(double r,double i){real=r;imag=i;} //实现输入输出运算符重载 friend istream& operator>>(istream &cin,Complex&c); friend ostream& operator<<(ostream &cout,Complex&c);//实现加减乘除运算符重载 friend Complex operator+(Complex &c1,Complex &c2); friend Complex operator-(Complex &c1,Complex &c2); friend Complex operator*(Complex &c1,Complex &c2); friend Complex operator/(Complex &c1,Complex &c2); friend istream& operator>>(istream &cin,Complex&c); friend ostream& operator<<(ostream &cout,Complex&c);private: double real; double imag;};//成员函数的定义Complex operator+(Complex &c1,Complex &c2){ Complex c; c.real=c1.real+c2.real; c.imag=c1.imag+c2.imag; return c;}Complex operator-(Complex &c1,Complex &c2){ Complex c; c.real=c1.real-c2.real; c.imag=c1.imag-c2.imag; return c;}Complex operator*(Complex &c1,Complex &c2){ Complex c; c.real=c1.real*c2.real-c1.imag*c2.imag; c.imag=c1.imag*c2.real+c1.real*c2.imag; return c;}Complex operator/(Complex &c1,Complex &c2){ Complex c; c.real=(c1.real/c2.real+c1.imag/c2.imag)/(c2.real*c2.real+c2.imag*c2.imag); c.imag=(c1.imag/c2.real-c1.real/c2.imag)/(c2.real*c2.real+c2.imag*c2.imag); return c;}//输入输出运算符重载istream & operator>>(istream&cin,Complex&c){    cout<<"请输入复数的实部与虚部"<<endl;    cin>>c.real>>c.imag;    return cin;}ostream & operator<<(ostream &cout,Complex&c){    cout<<"(";    cout<<c.real;    cout<<","<<c.imag<<"i)"<<endl;    return cout;}//main函数经行测试int main( ){    Complex c1,c2,c3;    cin>>c1>>c2;    cout<<c1<<c2<<endl;    c3=c1+c2;    cout<<"c1+c2="<<c3<<endl;    c3=c1-c2;    cout<<"c1-c2="<<c3<<endl;    c3=c1*c2;    cout<<"c1*c2="<<c3<<endl;    c3=c1/c2;    cout<<"c1/c2="<<c3<<endl;    return 0;}

结果：

体会：

friend istream& operator>>(istream &cin,Complex&c);
friend ostream& operator<<(ostream &cout,Complex&c);

实现输入输出运算符重载。