C语言小程序（七）、石头剪刀布

本来挺简单的一个程序，但突然想把《Friends》给糅合进去，就多花了一些心思，这是我写过最有趣的程序了。

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int getrand()
{
	srand(time(NULL));
	return rand()%3;
}

int win_lose(int choice)
{
	int rand = 0;
	char *p[3] = {"SCISSORS", "STONE", "CLOTH"};
	rand = getrand();
	printf("
The system give the %s.
",p[rand]);
	rand++;

	if(choice == rand)							//even
	{
		printf("
Joey:	Hei, How you doing? We call it even, all right?
");
		printf("	And if you are Chandler M. Bing, of course you will say ok.
");
		return 0;
	}
	else if(rand==choice-1 || rand==choice+2)	//win
	{
		printf("
Monica:	Of course the winner is Me. I knew it, you such a loser,
");
		printf("	you can't win me ever!
");
		printf("Ross:	It can't be, I am Profess Geller and I am a doctor.
");
		printf("	I can't lose, you must cheat me last time. 
");
		return 1;
	}
	else										//lose
	{
		printf("
Rachel:	Oh my god! Oh my god! I can't believe this. Phoebe,
");
		printf("	you are my best friend, can we forget this?
");
		printf("Phoebe:	Ok, But it is when you say that you don't love Ross any more.
");
		return -1;
	}
}

int main()
{
	int choice = 0;
	int flag = 0;
	int rot = 0;
	char ch;
	system("clear");
	printf("***********************************************");
	printf("
	Lets play a game about <Friends>.
");
	printf("***********************************************");
	printf("
Janice:	You don't want to see me any more, right? 
	So just chose a number quickly:
");
	printf("
1.SCISSORS
2.STONE
3.CLOTH
");
	do
	{
		printf("
Input your choice:");
		scanf("%d",&choice);
		if(choice>0 && choice<4) 
		{
			flag = win_lose(choice);
			while((ch=getchar())!='
' && ch!=EOF);
			printf("
Gunther:I want to see Rachel");
			if(flag == -1)
				printf(" again");
			printf(", so please replay it.(y/n)");
		}
		else
		{
			while((ch=getchar())!='
' && ch!=EOF);
			printf("
Monica:	What's the matter with you! What you need is just chose
");
			printf("	a number from 1 to 3. So are you ready?(y/n)");
		}

		ch = getchar();
	}
	while(ch=='y' || ch=='Y' || ch=='
');

	printf("
Goodbye！
");

	return 0;
}

谨以此程序纪念下《Friends》，Monica、Ross、Joey、Rachel、Chandler、Phoebe。

还请诸位大侠自动忽略那蹩脚的英语。