1回答

• 

  kanasm

  2018-03-31 11:49:03

  #include<stdio.h>
  int main(void)
  {
      int num;
      while(scanf("%d",&num)!=EOF){
      if(num==0)
          printf("0");//加个判断否则当输入为0时输出为空
      else{
          while(num){
              printf("%d",num%10);
              num=num/10;
          }
      }
      printf("\n");
      }
      return 0;
  }

  0 0