Description
定义一个复数类Complex，重载运算符“+”，使之能用于复数的加法运算。将运算符函数重载为非成员、非友元的普通函数。编写程序，求两个复数之和。
Input
两个复数
Output
复数之和
Sample Input
3 4
5 -10
Sample Output
(8.00,-6.00i)#include <iostream>
#include <iomanip>
using namespace std;
class Complex
{
public:
Complex();
Complex(double r,double i);
double get_real();
double get_imag();
void display();
private:
double real;
double imag;
};
Complex::Complex()
{
return;
}
Complex::Complex(double r,double i)
{
real=r;imag=i;
}
double Complex::get_real()
{
return real;
}
double Complex::get_imag()
{
return imag;
}
void Complex::display()
{
cout<<"("<<real<<","<<imag<<"i)"<<endl;
}
Complex operator +(Complex a,Complex b)
{
double i,j;
i=a.get_real() +b.get_real();
j=a.get_imag() +b.get_imag();
Complex c(i,j);
return c;
} int main()
{
double real,imag;
cin>>real>>imag;
Complex c1(real,imag);
cin>>real>>imag;
Complex c2(real,imag);
Complex c3=c1+c2;
cout<<setiosflags(ios::fixed);
cout<<setprecision(2);
c3.display();
return 0;
}