C++ 指针函数介绍

#include "stdio.h"void hello(void) { printf("你好!"); }void bye(void) { printf("再见！"); }void ok(void) { printf("好的！"); }typedef void(*funcptr)(void);void speak(int id){funcptr words[3] = { &hello, &bye, &ok };funcptr fun = words[id];(*fun)();}int main(){speak(1);return 0;}