第八周项目一 复数类的运算符重载（1）

问题及代码

ALL rights reserved.                      
*文件名称: 初学对象6                  
作者：李长鸿                   
*完成时间：2015.4.15                
*问题描述： 阅读程序               
*/

#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){    return Complex(real+c2.real,imag+c2.imag);}Complex Complex::operator-(const Complex &c2){    return Complex(real-c2.real,imag-c2.imag);}Complex Complex::operator*(const Complex &c2){    return Complex(real*c2.real,imag*c2.imag);}Complex Complex::operator/(const Complex &c2){    return Complex(real/c2.real,imag/c2.imag);}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;}

总结：返回值时，想着反正返回值是 Complex  类的，就删了一个前面的那个  Complex  ，结果出现以下错误：

H:\新建文件夹\2015.4.28.1-1\main.cpp|20|error: could not convert '(0, (((Complex*)this)->Complex::imag + ((double)c2.Complex::imag)))' from 'double' to 'Complex'|

            想起老师的新定义一个  Complex  对象返回，这个不过是简化了名字而已。