python - 获取列表中所有单词的最长公共(public)字符串前缀

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Determine prefix from a set of (similar) strings
                                
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是否有一个函数返回列表中所有值开头的最长字符串的（长度）：

["flexible","flexile","flexion","flexor"]

应该返回："flex"或4

为此：["flexible","flexile","flexion","flexor","ape"]，它应该返回一个空字符串或0；

最佳答案

>>> import os
>>> os.path.commonprefix(["flexible","flexile","flexion","flexor"])
'flex'