python编程快速上手实例

def collatz(number):

    while number != 1:

        if number % 2 == 0:

            number = number // 2

            print(number)

        elif number % 2 == 1:

            number = 3 * number + 1

            print(number)

print('Enter number: ')

number = int(input())

collatz(number)

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