完成复数类

完成复数类的加、乘等简单运算。首先会初始化一个复数，然后需要你重新输入一个复数，然后进行简单的运算，最后两个复数进行比较。其中用到重载运算符，this指针，构造函数等知识。

#define _CRT_SECURE_NO_WARNINGS 1#ifndef COMPLEX_H#define COMPLEX_H#include <iostream>#include <iomanip>class Complex{public:    Complex(double _real,double _imag = 0.0):real(_real),imag(_imag){} //构造函数，初始化列表和默认参数    Complex(std::istream &is){is >> *this;};                           //输入构造函数，调用自身的>>操作符    void SetReal(double _real);                                        //更改实部的值    void SetImag(double _imag);                                        //更改虚部的值    void SetVal(double _real,double _imag);                            //更改整个复数    inline double GetReal() const;                                     //获取实部，常成员函数    inline double GetImag() const;                                     //获取虚部，常成员函数    Complex& operator+=(const Complex &val);                           //成员操作符+=    Complex& operator*=(const Complex &val);                           //成员操作符-=    friend bool operator==(const Complex &lhs,const Complex &rhs);     //友元函数，需访问私有数据    friend std::istream& operator>>(std::istream &,Complex &);         //友元输入操作符，需私有数据    friend std::ostream& operator<<(std::ostream &,const Complex &);   //友元输出操作符，需私有数据private:    double real;                                                            double imag;};Complex operator+(const Complex &lhs, const Complex &rhs);              //普通函数，实现两个复数+操作Complex operator*(const Complex &lhs, const Complex &rhs);              //普通函数，实现两个复数*操作///////////////////////////////////////////////////////////////////////////////////////////////////////inline bool operator==(const Complex &lhs,const Complex &rhs){    return (lhs.real == rhs.real) && (lhs.imag == rhs.imag);}inline bool operator!=(const Complex &lhs,const Complex &rhs){    return !(lhs==rhs);}inline Complex& Complex::operator+=(const Complex &val){    real += val.real;    imag += val.imag;    return *this;}inline Complex operator+(const Complex &lhs,const Complex &rhs){    Complex ret(lhs);    ret += rhs;    return ret;}inline Complex& Complex::operator*=(const Complex &val){    double tReal = real;    double tImag = imag;    real = tReal*val.real - tImag*val.imag;    imag = tReal*val.imag + tImag*val.real;    return *this;}inline Complex operator*(const Complex &lhs,const Complex &rhs){    Complex ret(lhs);    ret *= rhs;    return ret;}inline std::istream& operator>>(std::istream &is,Complex &com){    std::cout << "请输入实数部分：" ;    is >> com.real;    if(is)    {        std::cout << "请输入虚数部分：" ;        is >> com.imag;        if(is)        {             return is;        }        else        {            com = Complex(0.0);        }    }    else    {        com = Complex(0.0);    }    return is;}inline std::ostream& operator<<(std::ostream &os, const Complex &com){    os << "复数为：" << com.real << std::showpos << com.imag << "i" << std::endl;    return os;}inline double Complex::GetReal() const {    return real;}inline double Complex::GetImag() const{    return imag;}void Complex::SetReal(double _real){    real = _real;}void Complex::SetImag(double _imag){    imag = _imag;}void Complex::SetVal(double _real,double _imag){    real = _real;    imag = _imag;}#endif

#define _CRT_SECURE_NO_WARNINGS 1#include <stdio.h>#include <tchar.h>#include <cstdlib>#include <iostream>#include <sys/timeb.h>#include <ctime>#include <climits>#include "Complex.h"using namespace std;int main(int argc, _TCHAR* argv[]){    //测试构造函数    Complex c1(3,4);    cout << c1;    //测试流输入构造函数    Complex c2(cin);    cout << c2;    //测试+    Complex c3 = c1 + c2;    cout << c3;    //测试*    Complex c4 = c1*c2;    cout << c4;    //测试*=    Complex c5(3,4);    c5 *= c1;    cout << c5;    //测试==    if(c1==c2)    {        cout << "复数c1和c2相等" << endl;    }    else    {        cout << "复数c1和c2不等" << endl;    }    system("pause");    return 0;}