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交作业 求解

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楠先森咩

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

我自己写的后面加了个== True,但是这个是不需要的 为什么??

L2 = [x.lower() for x in L1 if isinstance(x, str)==True]

Mic_ael

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

因为isinstance已经包含判断了,这个函数会返回Ture或False

楠先森咩

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

嗷嗷 明白了 谢谢


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