运算符重载 + -

#include <iostream>
using namespace std;

class myComplex
{
private:
double real,imag;
public:
myComplex();
myComplex(double r,double i);
void outCom();
myComplex operator-(const myComplex &c);
friend myComplex operator+(const myComplex &c1,const myComplex &c2);
};

myComplex::myComplex()
{
real=0;
imag=0;
}
myComplex::myComplex(double r,double i)
{
real=r;
imag=i;
}
void myComplex::outCom()
{
cout<<"("<<real<<","<<imag<<")";
}

myCompex myComplex::operator-(const myComplex &c)
{
return myComplex(this->real-c.real,this->imag-c.imag)
}

myComplex operator+(const myComplex &c1,const myComplex &c2)
{
return myComplex(c1.real+c2.real,c1.imag+c2.imag)
}

int main()
{
myComplex c1(1,2),c2(3,-4),result;
c1.outCom();
cout<<"operator+";
c2.outCom();
cout<<"=";
result=c1+c2;
result.outCom();
cout<<endl;
c1.outCom();
cout<<"operator-";
c2.outCom();
cout<<"=";
result=c1-c2;
result.outCom();
cout<<endl;
return 1；

}