\d match any 0-9 number (\D match any non-digit character) . match any single charcter ("\." match ".") [a,b,c] match a, b, or c [^a,b,c] match any except a,b,nor c [a-z] match any single charcter from a to z [0-9] match any single digit number from 0 to 9...
来吧,调整一下python代码。 importreregex=r'Router ID: (\S+) +Address: (\S+).+?Neighbor is up for (\S+)'withopen('ospf_peer.txt')asf:ospf_peer=f.read()match=re.finditer(regex,ospf_peer,re.DOTALL)forminmatch:print(m.groups()) 强调一下的是.+禁用贪婪模式的方法是在其后面打上?问...
all the characters that arenotin the set will be matched. For example,[^5]will match any character except'5', and[^^]will match any character except'^'.^has no special meaning if it’s not the first character in the set.(补集)[^1-9]除去1到9...
正则表达式,又成正规表示式,正规表示法,正规表达式,规则表达式,常规表示法(英语:Regular Expression,在代码 中常简写为regex、regexp或RE),是计算机科学的一个概念,正则表达式使用带个字符串来描述,匹配一系列匹配某个句 法规则的字符串,在很多文本编辑器里,正则表达式通常被用来检索,替换那些匹配某个模式的文本。 Re...
\sReturns a match where the string contains a white space character"\s"Try it » \SReturns a match where the string DOES NOT contain a white space character"\S"Try it » \wReturns a match where the string contains any word characters (characters from a to Z, digits from 0-9, an...
In string patterns without the ASCII flag, it will match the whole range of Unicode digits. \D Matches any non-digit character; equivalent to [^\d]. \s Matches any whitespace character; equivalent to [ \t\n\r\f\v] in bytes patterns or string patterns with the ASCII flag. ...
\$a match if a string contains $ followed by a. Here, $ is not interpreted by a RegEx engine in a special way.If you are unsure if a character has special meaning or not, you can put \ in front of it. This makes sure the character is not treated in a special way....
match("dog", 1) # Match as "o" is the 2nd character of "dog". <re.Match object; span=(1, 2), match='o'> 如果你想定位匹配在 string 中的位置,使用 search() 来替代(另参考 search() vs. match())。 Pattern.fullmatch(string[, pos[, endpos]]) 如果整个 string 匹配这个正则表达式...
\ Escape special char or start a sequence. . Match any char except newline, see re.DOTALL ^ Match start of the string, see re.MULTILINE $ Match end of the string, see re.MULTILINE [] Enclose a set of matchable chars R|S Match either regex R or regex S. () Create capture group...
result = re.sub(regex, r'"\1":"\2"\3', input_str, 0, re.MULTILINE) RegEx Details: (\d+):匹配捕获组中的1+位数字#1 =: Match=character ([^,\n]*):匹配捕获组2中不,和\n的任何字符中的0个或多个 (,|$):匹配捕获组3中的逗号或行尾 ...