随机生成一个1~100的数让用户猜

#include "stdio.h"
#include "stdlib.h"
#include "time.h"
//目录
void begin()
{
	printf("***********************\n");
	printf("****1.play  0.exit*****\n");
	printf("***********************\n");
}
//游戏
void game()
{
	int ret, i;
	ret = rand()%100+1;
	while(1)
	{
		printf("please input\n");
		scanf("%d", &i);
		if(i > ret)
		{
			printf("猜大了\n");
		}
		else if(i < ret)
		{
			printf("猜小了\n");
		}
		else
		{
			printf("猜对了！！！ \n");
			break;
		}
	}
}
int main()
{
	int input;
	srand((unsigned int)time(NULL));
	do{
		begin();
		scanf("%d", &input);
		switch(input)
		{
			case 1: game(); break;
			case 0: printf("exit game\n"); break;
			default: printf("input failure\n"); break;
		}

	}while(input);
	return 0;
}

Linux下测试