第九周上機任務項目1-Complex類

01./*      02.* 程式的著作權和版本聲明部分      03.* Copyright (c)2013, 煙台大學電腦學院學生      04.* All rightsreserved.      05.* 檔案名稱：complex .cpp                                 06.* 作    者：趙冠哲                                  07.* 完成日期：2013年5月7日      08.* 版本號碼： v1.0            09.* 輸入描述：      10.* 問題描述： 11.*/  #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&);    friend ostream& operator << (ostream&, Complex&);private:    double real;    double imag;};//下面定義成員函數Complex Complex::operator+ (Complex &c2){    return Complex(this->real + c2.real, this->imag + c2.imag);}Complex Complex::operator- (Complex &c2){    return Complex(this->real - c2.real, this->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 = (-real*c2.imag + imag*c2.real)/(c2.real*c2.real+c2.imag*c2.imag);    return c;}istream& operator >> (istream& input, Complex& c){    cout << "請輸入複數的實部和虛部的數字：" << endl;    input >> c.real >> c.imag;    return input;}ostream& operator << (ostream& output, Complex& c){    output << "(" << c.real << "," << c.imag << ")";    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 << endl;    c3 = c1 - c2;    cout << "c1-c2=" << c3 << endl;    c3 = c1 * c2;    cout << "c1*c2=" << c3 << endl;    c3 = c1 / c2;    cout << "c1/c2=" << c3 << endl;    return 0;}

運行結果：