指针与函数

#include
“stdio.h”

int add(int
x,int
y)

{

    return
x + y;

}

int main()

{

    int(*pf)(int ,int);

    pf = add;

    int a = (*pf)(1,1);

    printf(“%d\n”,a);

return 0;

}

#include
“stdio.h”

int add(int
x,int
y)

{

    return
x + y;

}

int sub(int
x,int
y)

{

    return
x – y;

}

int cou(int (*pf)(int,int),int
x,int
y)

{

    return (*pf)(x, y);

}

int main()

{

    int a = cou(add, 1, 1);

    int b = cou(sub, 8, 4);

    printf(“%d\n”, a);

    printf(“%d\n”, b);

return 0;

}