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WatchOut

WatchOut

V2EX member #338566, joined on 2018-08-04 23:59:57 +08:00
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或许你可以先 lower 再 split
lower 是用于单个字符串的,你的 contents 调用了 split 函数过后成了 list,这就是它这样提示的原因。
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