stri=" ".join(i)TypeError: sequence item 0: expected str instance, NoneType found
1个回答
NoneType不能直接进行join
你可以自动跳过None
" ".join([x for x in i if x is not None])或者把None替换成“空”
" ".join(["空" if x is None else x for x in i])
何立诚
2019-06-18 22:26
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