C/C++：函数指针

#include<iostream>#include<cstdlib>#include<algorithm>using namespace std;void say_hello(){cout << "hello world !" << endl;}int main(){//say_hello(); 常用的普通方法；void(* p)(); // p就是函数指针；p = say_hello; // 令p指向say_hello函数；p(); //调用p函数；system("pause");return 0;}