#include <iostream>
using namespace std;
class Complex
{
private:
double real, image;
public:
Complex() {}
Complex(double a, double b)
{
real = a;
image = b;
}
void setRI(double a, double b)
{
real = a;
image = b;
}
double getReal()
{
return real;
}
double getImage()
{
return image;
}
void print()
{
if (image>0)
{cout << "复数:" << real << " + " << image << "i" << endl;}
if (image<0)
{cout << "复数:" << real << " - " << image << "i" << endl;}
}
friend Complex add(Complex, Complex);//声明友元函数
};
Complex add(Complex c1, Complex c2)//定义友元函数
{
Complex c3;
c3.real = c1.real + c2.real;//访问 Complex 类中的私有成员
c3.image = c1.image + c2.image;
return c3;
}
int main()
{
Complex c1(19, 0.864), c2, c3;
c2.setRI(90, 125.012);
c3 = add(c1, c2);
cout << "复数一:";
c1.print();
cout << "复数二:";
c2.print();
cout << "相加后:";
c3.print();
return 0;
}
Complex number class - defines a friend function complex add(complex x, complex y) of the complex number class, which is used to complete the addition of two complex numbers, similar to subtraction, division, and multiplication.
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Origin blog.csdn.net/y0205yang/article/details/130208423
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