回调函数

#include <stdio.h>
#include<iostream>
void printWelcome(int len)
{
	printf("欢迎欢迎 -- %d/n", len);
}

void printGoodbye(int len)
{
	printf("送客送客 -- %d/n", len);
}

void callback(int times, void(*print)(int))
{
	int i;
	for (i = 0; i < times; ++i)
	{
		print(i);
	}
	printf("/n我不知道你是迎客还是送客!/n/n");
}
void main(void)
{
	callback(10, printWelcome);


	std::cout << std::endl<< "--------------------------------------------------------------------------------------------" << std::endl;




	callback(10, printGoodbye);
	std::cout << std::endl << "--------------------------------------------------------------------------------------------" << std::endl;
	printWelcome(5);
}