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#include <stdio.h>
x
马上注册,结交更多好友,享用更多功能^_^您需要 登录 才可以下载或查看,没有账号?立即注册  #include <time.h>
 #include <stdlib.h>
 
 void main()
 {
 int user,computer;
 char sure;
 
 
 labal:
 srand((int)time(0));
 computer=rand()%(0-10);
 printf("please input yur number:");
 
 while(1)
 {
 scanf("%d",&user);
 
 if(user<computer)
 printf("you should input a bigger number:");
 else if(user>computer)
 printf("you should input a smaller number:");
 else if(user==computer)
 {
 printf("congratulation you are right!!!\n");
 
 printf("are you continue (Y/N):");
 scanf("%c",&sure);          //为什么执行到这里没有停下来等待用户输入????????
 
 sure=toupper(sure);
 while(sure!='Y'&&sure!='N')
 {
 putchar(7);
 printf("you should input Y or N:");
 
 scanf("%c",&sure);
 sure=toupper(sure);
 }
 
 if(sure=='Y')
 goto labal;
 else if(sure=='N')
 exit(0);
 }
 
 
 
 }
 }
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