第九周实验报告一

1. * 程序的版权和版本声明部分  
2. * Copyright (c) 2011, 烟台大学计算机学院学生  
3. * All rights reserved.  
4. * 文件名称：  
5. * 作者：李君凯  
6. * 完成日期： 2012年 4月 16日
7. * 版本号：  
8. *对任务及求解方法的描述部分  

9. #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);      friend istream& operator >>(istream&,Complex&);//运算符>>重载为友元函数      friend ostream& operator <<(ostream&,Complex&);//运算符<<重载为友元函数        private:      double real;      double imag;  };  //下面定义成员函数  Complex Complex:: operator+(Complex &c2)  {      return Complex(real+c2.real,imag+c2.imag);  }    Complex Complex ::operator-(Complex &c2)  {            return Complex(real-c2.real,imag-c2.imag);  }  Complex Complex:: operator*(Complex &c2)  {      Complex c;      c.real=real*c2.real+imag*c2.imag;      c.imag=real*c2.imag+imag*c2.real;      return c;  }   Complex Complex ::operator/(Complex &c2)  {      Complex c;      c.real=(real*c2.real +imag*c2.imag )/(c2.real *c2.real+c2.imag*c2.imag);      c.imag =(imag*c2.real - real*c2.imag )/(c2.real *c2.real+c2.imag*c2.imag);      return c;  }      istream& operator >>(istream& input,Complex& c)//定义运算符>>重载函数  {      cout<<"请输入实部和虚部：";      input>>c.real>>c.imag;      return input;  }    ostream& operator <<(ostream& output,Complex& c)//定义运算符<<重载函数  {      output<<"("<<c.real;      if(c.imag>=0) output << "+";      output<<c.imag<<"i)"<<endl;      return output;  }        int main()  {      Complex c1,c2,c3;      cin>>c1>>c2;      cout<<"c1="<<c1<<endl;      cout<<"c2="<<c2<<endl;        c3=c1+c2;      cout<<"c1+c2="<<c3;            c3=c1-c2;      cout<<"c1-c2="<<c3;        c3=c1*c2;      cout<<"c1*c2="<<c3;        c3=c1/c2;      cout<<"c1/c2="<<c3;        system("pause");      return 0;  }  

   
   

上机感言：定义运算符的重载进行输入和输出，感觉看起来比较舒服