c++改错题 #include <iostream.h> #include <math.h> class complex { double real; do

c++改错题 #include <iostream.h> #include <math.h> class complex { double real; do

#include 
#include 
class complex
{
double real;
double imag;
public:
    complex(double r=0.0,double i=0.0):real(r),imag(i){};
    void show()
    {
    cout<<"REAL"<<(imag>=0?'+':'-')<    }
    friend complex&operator +=(complex& c1,const complex& c2);
};
complex&operator +=(complex& c1,const complex& c2){
        c1.real+=c2.real;
        c1.imag+=c2.imag;
        return c1;
    }
int main()
{
complex c(3,5);
c+=complex(2,3);
c.show();
}

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