题解 | #浮点数的个位数字#

#include <stdio.h>

int main()
{
    double num;
    scanf("%lf", &num);
    
    int num01 = (int)num;
    
    while(num01 > 9)
    {
        num01 = num01 % 10;    
    }
    printf("%d", num01);
    
    return 0;
}