#include<iostream>
using namespace std;

double add(double,double);

double xx(double,double);

double calculaate(double,double,double (*pf) (double,double));

int main()
{
double i,j,k;
cout<<"please enter two score: ";

while(cin>>i>>j)
{

k=calculaate(i,j,add);
cout<<"New volue is: "<<k<<endl;//1
k=calculaate(i,j,xx);
cout<<"athre volue is: "<<k<<endl;//2
cout<<"please enter two score: ";

}

cout<<"bye! \n";
return 0;
}

double add(double x,double y)
{
return x+y;
}


double xx(double x,double y)
{
return x*y;
}
double calculaate(double a,double b,double (*pf) (double,double))
{
cout<<"New volue is: "<<(*pf)(a,b)<<endl; //这里错了，晕
return (*pf)(a,b);

}
例如我输入40 10
New volue is:50
New volue is:50
New volue is:400
athre volue is：400
为什么不是显示的
New volue is:50
New volue is:400

请高手们帮我把程序改正确，非常感激~！

[[it] 本帖最后由 沿途有鬼 于 2008-7-25 21:49 编辑 [/it]]