比较复数的大小(用C++的类实现)

注:1.复数的大小是通过复数的模来比较的;2.对于复数类大小的比较,可以用对“>”运算符的重载来实现。


#include<iostream>
#include<cmath>
using namespace std;

class Complex
{
public:
    Complex(double real,char sign ,double imge)
        :_real(real)
        , _sign(sign)
        , _imge(imge)
    {}

    bool operator>(const Complex& c)
    {
        double square1 = pow(_real, 2) + pow(_imge, 2);
        double square1_root1 = sqrt(square1);
        double square2 = pow(c._real, 2) + pow(c._imge, 2);
        double square2_root2 = sqrt(square2);
        if (square1_root1 > square2_root2)
        {
            return true;
        }
        else
        {
            return false;
        }
    }

    void Display()
    {
        cout << _real << _sign << _imge << "i";
    }
private:
    double _real;  //实部
    double _imge;  //虚部
    char _sign;    //虚部的正负
};
int main()
{
    Complex c1(1.1, '+', 2.1);
    Complex c2(3.1, '-', 5.6);
    int ret = c1 > c2;
    cout << "比较结果:"<<endl;
    if (ret)
    {
        c1.Display();
        cout << "大于";
        c2.Display();
    }
    else
    {
        c1.Display();
        cout << "不大于";
        c2.Display();
    }

    cout << endl;
    return 0;
}

这里写图片描述

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转载自blog.csdn.net/it_10/article/details/53980782