用递归实现打印一个整数的位数

#include <stdio.h>
void print(unsigned int n)
{
    if(n>9)
    {
        print(n/10);
    }
    printf("%d ",n%10);
}
 
int main()
{
    unsigned int num =0;
    scanf("%d",&num);
    print(num);
    return 0;
}