#include<stdio.h>
int main()
{
    int x,y,i;
    scanf("%d",&x);
    if(x>10000||x<1)
   
        printf("please input 4 wei shu");
        else
        {    while(x!=0)
            {
               i=0;
                y=x%10;
                i=i+1;
                printf("%d,",y);
                x=x/10;
               
            }
        }
            printf("you input a%dwei shu\n",i);
   
    return 0;
}
我想表达每循环一次.i都累加1，以达到计算位数的目的.
可是每次i的结果都是1;