#include<stdio.h> int main(){int num,one,two,three,four;printf("请输出一个四位整数:\n");scanf("%d",&num) ;one=num%10;two=num/10%10;three=num/100%10;four=num/1000;printf("逆序输出位:%d%d%d%d\n",one,two,three,four);}