#include<iostream.h>
int max(int a,int b)
{
 return a>b?a:b;
}
void main()
{
 int a,b,(*p)();/*指向函数的指针*/
 cout<<"enter a and b";
 cin>>a>>b;
 p=max;        /*为什么这是错误啊  error C2197: 'int (__cdecl *)(void)' : too many actual parameters*/
 cout<<(*p)(a,b);
}