None (the default value) means split according to any whitespace, and discard empty strings from the result. maxsplit Maximum number of splits to do. -1 (the default value) means no limit. 只需要手动指定 sep 为单个空格,那么,额外的空格便会被保留下来...
python中strip()和split()在无参数的情况下使用whitespace做为默认参数,在帮助文档中对whitespace的解释为6个字符,它们是space, tab, linefeed, return, formfeed, and vertical tab wiki的ASCII中对whitespace的定义多了一个backspace,它们是
这样就定义了情感分析的上下文的粒度,所以如果你想使用不同的抽样策略,可以通过分割不同的分隔符来改变它的地方。 你也可以使用fancier tokenizer或lemmatizer代替“split on whitespace”策略。 将单词列表合并成文本块。 我们采用“分割和合并”策略是因为有两个原因:大多数任何由单词组成的文本都可以因此可靠地运行,...
S.split(sep=None, maxsplit=-1) -> list of strings #根据指定的符号分隔字符串 Return a list of the words in S, using sep as the delimiter string. If maxsplit is given, at most maxsplit splits are done. If sep is not specified or is None, any whitespace string is a separator and...
空格和缩进(WhiteSpace and Indentation) 空格和缩进在Python语言中非常重要,它替代了其他语言中{}的作用,用来区分代码块和作用域。在这方面PEP8有以下的建议: 1、每次缩进使用4个空格 2、不要使用Tab,更不要Tab和空格混用 3、两个方法之间使用一个空行,两个Class之间使用两个空行 ...
) S.split([sep [,maxsplit]]) -> list of strings #sep为分隔符,默认为空格 最大分隔次数 Return a list of the words in the string S, using sep as the delimiter string. If maxsplit is given, at most maxsplit splits are done. If sep is not specified or is None, any whitespace ...
S.split(sep=None, maxsplit=-1) -> list of strings Return a list of the words in S, using sep as the delimiter string. If maxsplit is given, at most maxsplit splits are done. If sep is not specified or is None, any whitespace string is a separator and empty strings are ...
If maxsplit is given, at most maxsplit splits are done. If sep is not specified or is None, any whitespace string is a separator and empty strings are removed from the result. """ return [] def splitlines(self, keepends=False): """ 根据换行分割 """ """ S.splitlines(keepends=...
None (the default value) means split according to any whitespace, and discard empty strings from the result. maxsplit Maximum number of splits to do. -1 (the default value) means no limit. Splits are done starting at the end of the string and working to the front. ...
下面显示了基本的Whitespacesplit预标记器和稍微复杂一点的BertPreTokenizer之间的比较。pre_tokenizers包。空白预标记器的输出保留标点完整,并且仍然连接到邻近的单词。例如,includes:被视为单个单词。而BERT预标记器将标点符号视为单个单词[8]。 from tokenizers.pre_tokenizers import WhitespaceSplit, BertPreTokenizer#...