/*
* 指針函數(shù)，返回int* 指針變量
*/
int* add(int a, int b)
{
 int *p;
 int c = a + b;
 p = &c;
 return p;
}
int main()
{
 int* p;
 p = add(1, 4);
 printf("%d\n", *p);
 getchar();
 return 1;
}

/*
* 函數(shù)指針，調(diào)用函數(shù)
*/
int fun1(int a, int b)
{
 return a + b;
}
int main()
{
 int(*p)(int, int);
 p = fun1;
 printf("%d\n", p(1, 5));
 getchar();
 return 1;
}

/*
* 函數(shù)指針，最為參數(shù)
*/
int fun2(int a, int b)
{
 return a + b;
}
int fun3(int a, int b, int(*f)(int, int))
{
 return f(a, b);
}
int main()
{
 printf("%d\n", fun3(1, 5, fun2));
 getchar();
 return 1;
}