第12周项目1-实现复数类中的运算符重载1

ゞ浴缸里的玫瑰 2021-06-10 20:41 324阅读 0赞

问题及代码：

/*copyright(c)2016.烟台大学计算机学院
  * All rights reserved,
  * 文件名称：text.Cpp
  * 作者：李一波
  * 完成日期：2016年5月17日
  * 版本号：vc++6.0
  *
  * 问题描述:  请用类的成员函数，定义复数类重载运算符+、-、*、/，使之能用于复数的加减乘除
  * 输入描述:
  * 程序输出：
  */

#include<iostream>
 using namespace std;
 class Complex
 {
 public:
     Complex(){real=0;imag=0;}
     Complex(double r,double i){real=r; imag=i;}
     Complex operator+(const Complex &c2);
     Complex operator-(const Complex &c2);
     Complex operator*(const Complex &c2);
     Complex operator/(const Complex &c2);
     void display();
 private:
     double real;
     double imag;
 };
 //下面定义成员函数
 Complex Complex::operator+(const Complex &c2)
 {
     Complex c;
     c.real=this->real+c2.real;
     c.imag=this->imag+c2.imag;
     return c;
 }
 Complex Complex::operator-(const Complex &c2)
 {
     Complex c;
     c.real=this->real-c2.real;
     c.imag=this->imag-c2.imag;
     return c;
 }
 Complex Complex::operator*(const Complex &c2)
 {
     Complex c;
     c.real=this->real*c2.real-this->imag*c2.imag;
     c.imag=this->real*c2.imag+this->imag*c2.real;
     return c;
 }
 Complex Complex::operator/(const Complex &c2)
 {
     Complex c;
     c.real=(this->real*c2.real+this->imag*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag);
     c.imag=(this->imag*c2.real-this->real*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag);

return c;
 }
 void Complex::display()
 {
     cout<<"("<<real<<","<<imag<<")"<<endl;
 }
 //下面定义用于测试的main()函数
 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();
     return 0;
 }

运行结果：

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