NP36 被8整除的数字

思路：

step1：在不同的条件下输出对应的语句；

代码如下：

while True:
    try:
        active = True
        print("Please enter a positive integer!\nEnter 'quit' to end the program.")
        n = input()
        if n == 'quit':
            active = False
        if active == False:
            break
        else:
            n = int(n)
            if n%8 == 0:
                print('{} is a multiple of 8.'.format(n))
            else:
                print('{} is not a multiple of 8.'.format(n))
    except:
        break