我会用filter：
str_list = filter(None, str_list)
str_list = filter(bool, str_list)
str_list = filter(len, str_list)
str_list = filter(lambda item: item, str_list)
Python 3从返回一个迭代器filter，因此应包装在对的调用中list()
str_list = list(filter(None, str_list))
Python-从字符串列表中删除空字符串
Python-从字符串列表中删除空字符串
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