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程序是编好了，但是得问问进行测试的动作

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电话打爆X

#1 Created at ... [Delete] [Delete and Lock User]

def fact(n): ''' simple test

>>> fact(-1)
Traceback (most recent call last):
...
ValueError

>>> fact(1)
1

>>> fact(3)
6

'''
if n < 1:
    raise ValueError()
if n == 1:
    return 1
return n * fact(n - 1)

if name=='main': import doctest doctest.testmod()

想问一下，我在交互式环境中，一定要运行python test.py -v 后面一定要加-v吗？ 为什么教程里面是直接运行不加-v的？ 谢谢

houbo111

#2 Created at ... [Delete] [Delete and Lock User]

握草，加-v很吊的样子哎，学到了

云默默shy幸福

#3 Created at ... [Delete] [Delete and Lock User]

加-v真是更清晰了，感谢分享

手机用户3099868413

#4 Created at ... [Delete] [Delete and Lock User]

貌似加V显示的更详细

笑劫戈和囧囧眉

#5 Created at ... [Delete] [Delete and Lock User]

加-v 把每一步都表示了出来 感谢分享

我是小九_

#6 Created at ... [Delete] [Delete and Lock User]

涨姿势了。。。。

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