compile(r'\s+') # 匹配一个或多个空白字符 split_string = re.split(pattern, 'hello world how are you?') print(split_string) # 输出分割后的字符串列表:['hello', 'world', 'how', 'are', 'you?'] 正则表达式元字符 .:匹配任意字符(除了换行符) *:匹配前面的子表达式零次或多次 +:匹配...
string: The variable pointing to the target string (i.e., the string we want to split). maxsplit: The number of splits you wanted to perform. Ifmaxsplitis 2, at most two splits occur, and the remainder of the string is returned as the final element of the list. flags: By default...
search Scans through a string, looking for any location where this RE matches. findall Finds all substrings where the RE matches, and returns them as a list. finditer Finds all substrings where the RE matches, and returns them as an iterator. split Splits the string by RE pattern.The ma...
re.findall(pattern, string, flags): 扫描整个字符串,返回所有匹配的内容。 re.finditer(pattern, string, flags): 扫描整个字符串,返回一个迭代器,迭代器的每个元素都是一个匹配对象。 re.sub(pattern, repl, string, count, flags): 替换字符串中的匹配项。 re.split(pattern, string, maxsplit, flags):...
()-匹配括号内的任意正则表达式 常用正则方法 re.search re.match re.split re.findall re.finditer re.sub re.subn re.compile 其他参数 re.I re.M re.Match 匹配对象 Match.group() Match.__getitem__(g) Match.groups() Match.re Match.string Match.start() 和 Match.end() Match.span()1...
1. Python split(separator, maxsplit) SyntaxThe syntax of split method is:string.split(separator, maxsplit)Above both parameters are optional. The seperator is the separator to use for splitting the string. By default, any whitespace (space, tab etc.) is a separator. The maxsplit specifies...
string 要被查找替换的原始字符串。 count 模式匹配后替换的最大次数,默认 0 表示替换所有的匹配。 flags 标志位,用于控制正则表达式的匹配方式 代码 输出: 3.5 split方法 split:实现分割字符串,以列表形式返回 语法:split(pattern, string, maxsplit=0, flags=0) ...
3.2.5 split(pattern, string, maxsplit=0, flags=0) re模块的split()方法和字符串的split()方法很相似,都是利用特定的字符去分割字符串。但是re模块的split()可以使用正则表达式,因此更灵活,更强大,而且还有“杀手锏”。看下面这个例子,匹配模式是加减乘除四个运算符中的任何一种,通过split()将字符串分割成...
如果你想定位 string 的任何位置,使用 search() 来替代(也可参考 search() vs. match()) re.fullmatch(pattern, string, flags=0) 如果整个 string 匹配到正则表达式样式,就返回一个相应的 匹配对象。 否则就返回一个 None ;注意这跟零长度匹配是不同的。 3.4 新版功能. re.split(pattern, string, maxsp...
.2searchThis method returns the match object if there is a match found in the string.3findallIt returns a list that contains all the matches of a pattern in the string.4splitReturns a list in which the string has been split in each match.5subReplace one or many matches in the string...