复数运算-优快云博客

本文链接：https://blog.youkuaiyun.com/liluchao1/article/details/7442890

本文介绍了一个复数类的实现，包括加、减、乘、除等基本运算，并通过友元函数和成员函数两种方式实现了这些运算符的重载，展示了如何进行复数之间的计算。

#include<iostream>

using namespace std;

class Complex
{
public:
	Complex(){real=0;imag=0;}
	Complex(double r,double i){real=r;imag=i;}
	Complex operator+(Complex &c2);
	Complex operator-(Complex &c2);
	Complex operator*(Complex &c2);
	Complex operator/(Complex &c2);
	void display();
private:
	double real;
	double imag;
};
Complex Complex::operator +(Complex &c2)
{
	Complex c;
	c.real=real+c2.real;
	c.imag=imag+c2.imag;
	return c;
}
Complex Complex::operator -(Complex &c2)
{
	Complex c;
	c.real=real-c2.real;
	c.imag=imag-c2.imag;
	return c;
}
Complex Complex::operator *(Complex &c2)
{
	Complex c;
	c.real=real*c2.real;
	c.imag=imag*c2.imag;
	return c;
}
Complex Complex::operator /(Complex &c2)
{
	Complex c;
	c.real=real/c2.real;
	c.imag=imag/c2.imag;
	return c;
}
void Complex::display()
{
	cout<<"("<<real<<","<<imag<<"i)"<<endl;
}
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();
	system("pause");
	return 0;
}

#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+(Complex &c1, Complex &c2);
	friend Complex operator-(Complex &c1, Complex &c2);
	friend Complex operator*(Complex &c1, Complex &c2);
	friend Complex operator/(Complex &c1, Complex &c2);
	void display();
private:
	double real;
	double imag;
};

Complex operator+(Complex &c1, Complex &c2)
{return Complex(c1.real+c2.real,c1.imag+c2.imag);}

Complex operator-(Complex &c1, Complex &c2)
{return Complex(c1.real-c2.real,c1.imag-c2.imag);}

Complex operator*(Complex &c1, Complex &c2)
{return Complex(c1.real*c2.real,c1.imag*c2.imag);}

Complex operator/(Complex &c1, Complex &c2)
{return Complex(c1.real/c2.real,c1.imag/c2.imag);}

void Complex::display()
{
	cout<<"("<<real<<","<<imag<<"i)"<<endl;
}
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();
	system("pause");
	return 0;
}

#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+(Complex &c1, double &d);
	friend Complex operator-(Complex &c1, double &d);
	friend Complex operator*(Complex &c1, double &d);
	friend Complex operator/(Complex &c1, double &d);
	void display();
private:
	double real;
	double imag;
};

Complex operator+(Complex &c1, double &d)
{return Complex(c1.real+d,c1.imag);}

Complex operator-(Complex &c1, double &d)
{return Complex(c1.real-d,c1.imag);}

Complex operator*(Complex &c1, double &d)
{return Complex(c1.real*d,c1.imag);}

Complex operator/(Complex &c1, double &d)
{return Complex(c1.real/d,c1.imag);}

void Complex::display()
{
	cout<<"("<<real<<","<<imag<<"i)"<<endl;
}
int main()
{
	Complex c1(3,4),c3;
	double d;
	cin>>d;
	cout<<"c1=";
	c1.display();
	cout<<"d="<<d<<endl;
	c3=c1+d;
	cout<<"c1+d=";
	c3.display();
	c3=c1-d;
	cout<<"c1-d=";
	c3.display();
	c3=c1*d;
	cout<<"c1*d=";
	c3.display();
	c3=c1/d;
	cout<<"c1/d=";
	c3.display();
	system("pause");
	return 0;
}

第八周任务一