使用操作符重载来完成复数的计算程序

main.cpp

#include <stdio.h>
#include "Complex.h"
int main()
{
    complex c1(1,2);
    complex c2(3,4);
    complex c3 = c2 / c1;
    complex c4(0, 0);
    (c4 = c3) = c1;
    printf("c1.a=%f,c1.b=%f
", c1.getA(), c1.getB());
    printf("c2.a=%f,c2.b=%f
", c2.getA(), c2.getB());
    printf("c3.a=%f,c3.b=%f
", c3.getA(), c3.getB());
    printf("c4.a=%f,c4.b=%f
", c4.getA(), c4.getB());
    if (c1 == c4)
    {
        printf("c1和c4相等
");
    }
    if (c1 != c2)
    {
        printf("c1与c2不相等
");
    }

    complex c5(0,0);
    complex c6 = c5++;
    printf("c6.a=%f
",c6.getA());
    printf("c6.b=%f
", c6.getB());
    complex c7 = ++c5;
    printf("c7.a=%f
", c7.getA());
    printf("c7.b=%f
", c7.getB());
    return 0;
}

Complex.cpp

#include "Complex.h"
#include "math.h"

double complex::getA()
{
    return this->a;
}
double complex::getB()
{
    return this->b;
}
double complex::getModulus()
{
    return sqrt(a*a + b*b);
}

complex complex:: operator + (const complex&c)
{
    double na = a + c.a;
    double nb = b + c.b;
    complex ret(na,nb);
    return ret;
}
complex complex:: operator - (const complex&c)
{
    double na = a - c.a;
    double nb = b - c.b;
    complex ret(na,nb);
    return ret;
}
complex complex:: operator * (const complex&c)
{
    double na = a*c.a - b*c.b;
    double nb = b*c.a - a*c.b;
    complex ret(na,nb);
    return ret;
}
complex complex:: operator / (const complex&c)
{
    double cm = c.a * c.a + c.b * c.b;
    double na = (a*c.a + b*c.b) / cm;
    double nb = (b*c.a - a*c.b) / cm;
    complex ret(na, nb);
    return ret;

}
bool complex:: operator == (const complex&c)
{
    return (a == c.a) && (b == c.b);
}
bool complex:: operator != (const complex&c)
{
    return !(*this == c);
}

complex& complex:: operator = (const complex& c)
{
    if (this != &c)
    {
        a = c.a;
        b = c.b;
    }
    return *this;
}

complex& complex:: operator ++()
{ 
    a = a + 1;
    b = b + 1;
    return *this;
}
complex complex:: operator ++(int)
{
    complex ret(a, b);
    a = a + 1;
    b = b + 1;
    return ret;
}

Complex.h

#ifndef _COMPLEX_H_
#define _COMPLEX_H_

class complex
{
    double a;
    double b;
public:
    complex(double a,double b) :a(0), b(0)
    {
        this->a = a;
        this->b = b;
    }
    double getA();
    double getB();
    double getModulus();
    complex operator + (const complex&c);
    complex operator - (const complex&c);
    complex operator * (const complex&c);
    complex operator / (const complex&c);
    bool operator == (const complex&c);
    bool operator != (const complex&c);
    complex& operator = (const complex&c);
    complex& operator ++();
    complex operator ++(int);

};

#endif