complex.h
複數的四則運算不懂得網上都有,直接貼代碼
#pragma once
#include<iostream>
using namespace std;
class Complex
{
public:
//四個成員函數
Complex(double real = 0.0, double image = 0.0)//構造函數
{
cout << "Complex()" << endl;
_real = real;
_image = image;
}
Complex(const Complex& c)//拷貝構造函數
{
cout << "Complex(const Complex& c)" << endl;
_real = c._real;
_image = c._image;
}
~Complex()//析構函數
{
cout << "~Complex()" << endl;
}
Complex& operator=(const Complex& c)//賦值操作符的重載
{
cout << "Complex& operator=(const Complex& c)" << endl;
if (this != &c)
{
_real = c._real;
_image = c._image;
}
return *this;
}
void Display()
{
cout << _real << "-" << _image << endl;
}
//比較運算符
//c1>c2
bool operator>(const Complex& c)
{
return _real > c._real
&& _image > c._image;
}
bool operator==(const Complex& c)//比較兩個複數是否相等
{
return _real == c._real&&_image == c._image;
}
//c1>=c2
bool operator>=(const Complex& c)
{
return *this > c || *this == c;
}
//c1<c2
bool operator<(const Complex& c)
{
return !(*this >= c);
}
//c1<=c2
bool operator<=(const Complex& c)
{
return !(*this>c);
}
//c1!=c2
bool operator!=(const Complex& c)
{
return !(*this == c);
}
//前置後置++和+/+=的實現
Complex& operator++()//前置++
{
this->_real += 1;
return *this;
}
Complex operator++(int)//後置++
{
Complex tmp(*this);
this->_real += 1;
return tmp;
}
Complex operator+(const Complex& c)//加法,+匿名對象不用&返回
{
Complex tmp(*this);
tmp._real = this->_real + c._real;
tmp._image = this->_image + c._image;
return tmp;
}
Complex& operator+=(const Complex& c)//+=匿名對象用&返回this
{
this->_real += c._real;
this->_image += c._image;
return *this;
}
private:
double _real;
double _image;
};
test.h
#include"complex.h"
int main()
{
Complex c1(2.0, 3.0);
Complex c2 = c1 + 2.0;
c2.Display();
system("pause");
return 0;
}
程序運行結果: