Question

关于C++运算符<<重载问题，程序出现报错

#include<iostream>
using namespace std;
class Complex
{
public:
Complex(){r=0;i=0;}
Complex(int a,int b):r(a),i(b){}

Complex operator +(Complex &obj)
{
return Complex(r+obj.r,i+obj.i);
}

friend ostream &operator << (ostream &, Complex &);
private:
int r,i;
};

ostream & operator << (ostream &output, Complex & p)
{
output<<p.r<<"-----"<<p.i<<endl;
return output;
}

void main()
{
Complex a(2,3),b(4,3),c;
c=a+b;

cout<< c;
}

哪里 错了？

Answer 1

0.0为什么我运行成功了= =、