大虾们:这个简单的C++程序生成后(VC++6.0中)怎么200多KB?

#include "iostream.h"
#include "math.h"
class Calc
{
public:
Calc();
double Sq(double A);
double Power(double A);
double GetA(){return A;};
private:
double A;
};
Calc::Calc()
{
A=5;
}
double Calc::Sq(double A)
{
return sqrt(A);
}
double Calc::Power(double A)
{
return A*=A;
}
void main()
{
Calc();
Calc C;
double D;
D=C.GetA();
cout<<C.Sq(D);
cout<<C.Power(D);
double B;
cin>>B;
cout<<C.Sq(B)<<endl;
cout<<C.Power(B);
}