第九周作业任务一



将第八周作业任务一定义的Complex类中的<<和>>运算符的重载，实现输入和输出，改造原程序中对运算结果的显示方式

#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 ostream& operator << (ostream&,Complex&);//声明重载运算符“<<”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){return Complex(real * c2.real - imag * c2.imag,imag * c2.real + real * c2.imag);}Complex Complex::operator / (Complex &c2){return Complex((real*c2.real+imag*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag),(imag*c2.real-real*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag));}ostream& operator << (ostream& output,Complex& c)//定义重载运算符“<<”函数{output << "(" << c.real << "," << c.imag << "i)" << endl;return output;}void main(){Complex c1(3,4),c2(5,-10),c3;cout << "c1 = ";cout << c1;cout << "c2 = ";cout << c2;c3 = c1 + c2;cout << "c1 + c2 = ";cout << c3;c3 = c1 - c2;cout << "c1 - c2 = ";cout << c3;c3 = c1 * c2;cout << "c1 * c2 = ";cout << c3;c3 = c1 / c2;cout << "c1 / c2 = ";cout << c3;system("pause");}   

上机感言：定义了<<和>>运算符的重载，只是在输入输出的时候加了两行代码。。