C +类输出错误

Setreal()

Setimag()

#include <iostream>
using namespace std;

class complex
{ public:
     bool Readcomplex()
     { cout<<\"Enter the real part\"<<endl;
       cin>>real;
       cout<<\"Enter the imaginary part\"<<endl;
       cin>>imag;
       return true; };
     double Getreal()
     { return real;
            };
     double Getimag()
     { return imag;
            };
     double Add(complex c)
     { real=real+c.real;
       imag=imag+c.imag;
            };
     double Setimag(double im)
     { imag=im;
          };
     double Setreal(double re)
     { real=re;
          };
     void Multiply(complex c)
     { double x;
       x=real*c.real-imag*c.imag;
       imag=real*c.imag+imag*c.real;
       real=x;
          };
 private:
      double real;
      double imag;   
  };
 int main()
 { complex A,B,E,R;
 double C,D;
 A.Readcomplex();
 B.Readcomplex();
 cout<<\"The complex no. A is \"<<A.Getreal()<<\"+i\"<<A.Getimag()<<endl;
 cout<<\"The complex no. B is \"<<B.Getreal()<<\"+i\"<<B.Getimag()<<endl;
 A.Add(B); //Result stored in A.
 cout<<\"The complex no. A2 is \"<<A.Getreal()<<\"+i\"<<A.Getimag()<<endl;
 cout<<\"Set the real of A\"<<endl;
 cin>>C;
 cout<<\"and set the imaginary part\"<<endl;
 cin>>D;
 cout<<\"the new A is\"<<A.Setreal(C)<<\"+i\"<<A.Setimag(D)<<endl; //WRONG OUTPUT
 A.Multiply(B);
 cout<<\"The complex no. A is \"<<A.Getreal()<<\"+i\"<<A.Getimag()<<endl;
 system(\"pause\");
 return 0;}

cout<<\"the new A is\"<<A.Setreal(C)<<\"+i\"<<A.Setimag(D)<<endl; //WRONG OUTPUT

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C+iD