猜数字小游戏

#include <stdio.h>#include <ctype.h>#include <time.h>#include <stdlib.h>int main(){    char input = 'y';    int limit = 2;    long long getNum = 0LL;    long long showNum;    int i;    clock_t now;    int score = 0;        srand(time(NULL));    do    {        showNum = 0LL;        //输出字符串        for (i=0;i<limit;i++)        {            if(i==0)            {                showNum = 10*showNum + 1 + rand()%9;            }            else            {                showNum = 10*showNum + rand()%10;                }        }        printf("%lld",showNum);        //等待1秒后消除        now = clock();        for (; (clock()-now) < (CLOCKS_PER_SEC*2) ;)        printf("\r");        for(i=0;i<limit;i++)        {            printf(" ");          }        printf("\r");        //接受用户输入并判断        printf("请重复输入之前的数字:\n");        scanf("%lld",&getNum);        if (showNum == getNum)        {            printf("正确.\n");            score += 10*limit;            limit++;            input = 'y';           }         else        {            printf("错误，游戏结束.\n");            printf("总得分:%d\n",score);            limit = 2;            score = 0;            fflush(stdin);            printf("是否继续(y/n):\n");            scanf("%c",&input);            }             }    while(tolower(input)=='y');    }