题解 | #数位之和#

#include <stdio.h>

int main() 
{
    int num;
    scanf("%d",&num);
    int result = 0;
    int wei;
    while(num!=0)
    {
        wei = num%10;
        result += wei;
        num /=10;
    }
    printf("%d",result);
    return 0;
}