wish.c

来自「用C++编写的一个编译器」· C语言 代码 · 共 57 行

int printf(char * format, ...);
int scanf(char *format, ...);
enum en_wish{wish_merry,wish_happy,wish_health};
int merry(char *name)
{
	return printf("Merry chrismas, my dear %s!\n", name);
}
int happy(char *name)
{
	return printf("Happy new year, %s!\n", name);
}
int health(char *name)
{
	return printf("Du Siqi wish you health and fortune in 2008!\n");
}
void delay()
{
	int i=0xfffffff;
	while(i--);
}
int main()
{
	int (*func)(char *);
	enum en_wish state=wish_merry;
	char name[32];
	printf("Please enter your name:\n");
	scanf("%s", name);
	while(1)
	{
		switch(state)
		{
		case wish_merry:
			func=merry;
			state=wish_happy;
			delay();
			break;
		case wish_happy:
			func=happy;
			state = wish_health;
			delay();
			delay();
			break;
		case wish_health:
			func=health;
			state = 4654;
			delay();
			delay();
			break;
		default:
			goto end;
		}
		func(name);
	}
end:
	return 0;
}