2677 4-1 复数类的运算符重载

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4-1 复数类的运算符重载

Time Limit: 1000MS Memory Limit: 65536KB

Problem Description

通过本题目的练习可以掌握成员运算符重载及友元运算符重载

要求定义一个复数类，重载加法和减法运算符以适应对复数运算的要求，重载插入运算符(<<)以方便输出一个复数的要求。

Input

要求在主函数中创建对象时初始化对象的值。

Output

输出数据共有4行，分别代表a，b的值和它们求和、求差后的值

Example Input

无

Example Output

a=3.2+4.5ib=8.9+5.6ia+b=12.1+10.1ia-b=-5.7-1.1i

#include <bits/stdc++.h>using namespace std;class Complex{    double real,imag;public:    Complex(double r=0, double i=0)    {        real = r;        imag = i;    }    void show()    {        cout <<real;        if(imag>=0){cout << '+';}        //else {cout << '-';}        cout<< imag << 'i' <<endl;    }    Complex operator+(Complex &c2)    {        Complex c;        c.real = real + c2.real;        c.imag = imag + c2.imag;        return c;    }    Complex operator-(Complex &c2)    {        Complex c;        c.real = real - c2.real;        c.imag = imag - c2.imag;        return c;    }};int main(){    Complex c1(3.2,4.5),c2(8.9,5.6),c3,c4;    c3 = c1 + c2;    c4 = c1 - c2;    cout << "a=";    c1.show();    cout << "b=";    c2.show();    cout << "a+b=";    c3.show();    cout << "a-b=";    c4.show();    //cout << "Hello world!" << endl;    return 0;}

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