\s Matches white space character. \w Matches a word character; equivalent to [a-zA-Z_0-9]The test functionThe test method executes a search for a match between a regular expression and a specified string. It re
EN文本数据操作和处理可以从使用 Python 程序中受益，该程序将从字符串中消除最后一个指定的字符。此类应...
""); JS去除字符串所有空格 //直接去除所有的空格 var LL = data.replace(/\s+/g,""); 在Kett...
regex Javascript正则表达式“单空格字符”字符类\s不仅包含空格字符，还包含其他Unicode白色字符。\s等效于...
space: single white space, tab character: refers to a letter, digit or symbol Credit:xkcd Basics Tolearnregex quickly with this guide, visitRegex101, where you can build regex patterns and test them against strings (text) that you supply. ...
“Extended” capability to ignore all white space characters in the$regexpattern unless escaped or included in a character class. Additionally, it ignores characters in-between and including an un-escaped hash/pound (#) character and the next new line, so that you may include comments in compli...
如果是single-word: '[\w+\]';如果含有space or punctuation: '\[.+]' In[1]:r'\w''\\w'In[2]:'\\w'\wIn[2]:print(r'\n')\nIn[3]:print('\n')#输出了看不见的换行符,而不是字符`\n` 6.Negative Character Class #要java不要javascriptpattern=r'[Jj]ava[^Ss]' ...
Matches a SPACE character (char code 32). x Character. Matches a "x" character (char code 120). Case sensitive. ] ] Character. Matches a "]" character (char code 93). . Dot. Matches any character except line breaks. * Quantifier. Match 0 or more of the preceding token. ? Laz...
whitespace \s Whitespace character: space, tab, line break, ... anyOf('abc') [abc] Any of provided characters charRange('a', 'z') [a-z] Character in a range charClass(...) [...] Union of multiple character classes inverted(...) [^...] Negation of a given character class See...
(?!...). Let's take a look at the following regular expression (T|t)he(?!\sfat) which means: get all The or the words from the input string that are not followed by a space character and the word fat."(T|t)he(?!\sfat)" => The fat cat sat on the mat. ...