4-1 复数类的运算符重载

4-1 复数类的运算符重载

Time Limit: 1000MSMemory Limit: 65536KB

SubmitStatistic

Problem Description

通过本题目的练习可以掌握成员运算符重载及友元运算符重载

要求定义一个复数类，重载加法和减法运算符以适应对复数运算的要求，重载插入运算符(<<)以方便输出一个复数的要求。

Input

 

要求在主函数中创建对象时初始化对象的值。

Output

 

输出数据共有4行，分别代表a，b的值和它们求和、求差后的值

Example Input

无

Example Output

a=3.2+4.5ib=8.9+5.6ia+b=12.1+10.1ia-b=-5.7-1.1i

Hint

 

Author

     #include<bits/stdc++.h>
using namespace std;
class Complex
{
public:
    Complex(double r = 0, double i = 0)
    {
        real = r;
        image = i;
    }
    Complex operator+(Complex &c1);
    Complex operator-(Complex &c1);
    void display();
private:
    double real, image;
};
Complex Complex::operator+(Complex &c1)
{
    Complex c;
    c.real = real + c1.real;
    c.image = image + c1.image;
    return c;
}
Complex Complex::operator-(Complex &c1)
{
    Complex c;
    c.real = real - c1.real;
    c.image = image - c1.image;
    return c;
}
void Complex::display()
{
    cout<<real;
    if(image > 0)
        cout<<'+'<<image<<'i'<<endl;
    else
        cout<<image<<'i'<<endl;
}
int main()
{
    Complex a(3.2,4.5);
    Complex b(8.9,5.6);
    Complex c3, c4;
    c3 = a + b;
    c4 = a - b;
    cout<<"a=";a.display();
    cout<<"b=";b.display();
    cout<<"a+b=";c3.display();
    cout<<"a-b=";c4.display();
    return 0;
}