定义一个复数类Complex 重载运算符第二题

最新推荐文章于 2022-07-20 11:56:53 发布

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最新推荐文章于 2022-07-20 11:56:53 发布

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本文详细介绍了使用C++实现复数加、减、乘、除运算的方法，并通过实例展示了如何进行复数的四则运算。

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#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-imag*c2.imag; 
 c.imag=imag*c2.real+real*c2.imag; 
 return c;} 
 
Complex Complex::operator/(Complex &c2) 
{Complex c;  
c.real=(real*c2.real+imag*c2.imag)/(c2.real*c2.real+c2.i
mag*c2.imag);  
c.imag=(imag*c2.real-real*c2.imag)/(c2.real*c2.real+c2.i
mag*c2.imag); 
 return c;}  
void Complex::display() 
{cout<<"("<<real<<","<<imag<<"i)"<<endl;}  
int main() 
{Complex c1(3,4),c2(5,-10),c3; 
 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(); 
 return 0; 
}