第八周项目一复数类拓展之复数与double型数据的运算

最新推荐文章于 2023-05-10 00:21:35 发布

原创最新推荐文章于 2023-05-10 00:21:35 发布 · 408 阅读

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本文介绍了一个使用C++实现的复数类，该类支持基本的复数运算，包括加、减、乘、除等操作，并展示了如何通过定义运算符重载来简化这些操作。此外，还提供了一个测试用例来验证复数类的功能。

问题及代码

#include<iostream>
using namespace std;
class Complex
{
public:
    Complex(){real=0;imag=0;}
    Complex(double r,double i){real=r; imag=i;}
    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);
    friend Complex operator+(const Complex &c1,const double d);
    friend Complex operator-(const Complex &c1,const double d);
    friend Complex operator*(const Complex &c1,const double d);
    friend Complex operator/(const Complex &c1,const double d);
    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,c1.imag-c2.imag);
}
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,c1.imag/c2.imag);
}
Complex operator+(const Complex &c1,const double d)
{
    return Complex(c1.real+d,c1.imag);
}
Complex operator-(const Complex &c1,const double d)
{
    return Complex(c1.real-d,c1.imag);
}
Complex operator*(const Complex &c1,const double d)
{
    return Complex(c1.real*d,c1.imag);
}
Complex operator/(const Complex &c1,const double d)
{
    return Complex(c1.real/d,c1.imag);
}
void Complex::display()
{
    cout<<"("<<real<<","<<imag<<")"<<endl;
}

//下面定义用于测试的main()函数
int main()
{
    Complex c1(3,4),c2(5,-10),c3;
    cout<<"c1=";
    c1.display();
    cout<<"c2=";
    c2.display();
    c3=c1+c2;
    cout<<"c1+c2=";
    c3.display();
    c3=c1-c2;
    cout<<"c1-c2=";
    c3.display();
    c3=c1*c2;
    cout<<"c1*c2=";
    c3.display();
    c3=c1/c2;
    cout<<"c1/c2=";
    c3.display();
    cout<<endl;
    double d=7.77;
    Complex c(7,7);
    cout<<"c=";
    c.display();
    cout<<"d="<<d<<endl;
    cout<<"c+d=";
    c3=c+d;
    c3.display();
    cout<<"c-d=";
    c3=c-d;
    c3.display();
    cout<<"c*d=";
    c3=c*d;
    c3.display();
    cout<<"c/d=";
    c3=c/d;
    c3.display();
    return 0;
}