Python:从阶乘(N)中获取最后一个非零元素

def factorial(n):
    result = 1
    for i in range(1, n+1):
        result *= i
    return result

def get_last_nonzero_digit(n):
    factorial_result = factorial(n)
    factorial_str = str(factorial_result)
    for i in range(len(factorial_str)-1, -1, -1):
        if factorial_str[i] != '0':
            return int(factorial_str[i])

n = int(input("请输入一个正整数："))
last_nonzero_digit = get_last_nonzero_digit(n)
print("阶乘{}的最后一个非零元素是：{}".format(n, last_nonzero_digit))