编辑代码

#include <stdio.h>
#include<math.h>
int main () 
{
    int num,indiv,ten,hundred,thousand,ten_thousand,place;
    printf("请输入一个整数(0-99999):");
    scanf("%d",&num);
    if(num>9999)
    place=5;
    else if(num>999)
    place=4;
    else if(num>99)
    place=3;
    else if(num>9)
    place=2;
    else place=1;
    printf("位数：%d\n",place);
    printf("每位数字为：")；
    ten_thousand=num/10000;
    thousand=(int)(num-ten_thousand*10000)/1000;
    hundred=(int)(num-ten_thousand*10000-thousand*1000)/100;
    ten=(int)(num-ten_thousand*10000-thousand*1000-hundred*100-ten*10);
    indiv=(int)(num-ten_thousand*10000-thousand*1000-hundred*100-ten*10);
    switch(place)
    {case 5:printf("%d,%d,%d,%d,%d",ten_thousand,thousand,hundred,ten,indiv);
            printf("\n反序数字为：")；
            printf("%d%d%d%d%d\n",indiv,ten,hundred,thousand,ten_thousand);break;
     case 4:printf("%d,%d,%d,%d",thousand,hundred,ten,indiv);
            printf("反序数字为：")；
            printf("%d%d%d%d\n",indiv,ten,hundred,thousand);break;
     case 3:printf("%d,%d,%d",hundred,ten,indiv);
            printf("\n反序数字为：")；
            printf("%d%d%d\n",indiv,ten,hundred);break;
     case 2:printf("%d,%d",ten,indiv);
            printf("\n反序数字为：")；
            printf("%d%d\n",indiv,ten);break;
     case 1:printf("%d",indiv);
            printf("\n反序数字为:");
            printf("%d\n",indiv);break;
    }
    return 0;
}