#include<stdio.h>
#include<time.h>
#include<stdlib.h>
void menu()
{printf("********************************\n");printf("******   1.开始  2.退出   ******\n");printf("********************************\n");
}
void game()
{int guess = 0;int ret = 0;ret = rand() % 100 + 1;while (1){printf("猜个数字：");scanf_s("%d", &guess);if (guess > ret)printf("猜大了\n");else if (guess < ret)printf("猜小了\n");else{printf("猜对啦\n");break;}}
}
int main()
{int input = 0;srand((unsigned int)time(NULL));do{menu();printf("请选择：");scanf_s("%d", &input);switch (input){case 1:game();break;case 2:printf("退出\n");goto A;break;default:printf("输入错误\n");break;}} while (input);A:return 0;
}