findall()函数返回一个包含所有匹配项的列表。 示例 打印包含所有匹配项的列表: importrestr="The rain in Spain"x = re.findall("ai",str)print(x) 列表中的匹配项按找到的顺序排序。 如果没有找到匹配项,返回一个空列表: 示例 打印所有匹配项的列表: importrestr="The rain in Spain"x = re.findall...
a{3,} Between 3 and 6 of a a{3,6} Start of string ^ End of string $ A word boundary \b Non-word boundary \B Regular Expression No Match / insert your regular expression here / gm Test String insert your test string here 1:1...
要提取文本中的特定内容,可以使用re模块中的findall()函数。该函数接受两个参数:正则表达式模式和待匹配的字符串。它会返回一个包含所有匹配项的列表。 下面是一个示例代码,演示如何使用Python的正则表达式提取文本中的特定内容: 代码语言:txt 复制 import re text = "Hello, my email address is example@example....
{returnnewPattern(regex,0);}publicstaticPatterncompile(String regex,intflags){returnnewPattern(regex, flags);}//This private constructor is used to create all Patterns.//The pattern string and match flags are all that is needed to completely describe a Pattern.privatePattern(String p,intf){.....
The Regex.Split methods are similar to the String.Split(Char[]) method, except that Regex.Split splits the string at a delimiter determined by a regular expression instead of a set of characters. The string is split as many times as possible. If no delimiter is found, the return value ...
This method returns the first substring ininputthat matches the regular expression pattern. You can retrieve subsequent matches by repeatedly calling the returnedMatchobject'sMatch.NextMatchmethod. You can also retrieve all matches in a single method call by calling theRegex.Matches(String, String)metho...
\b{start}, \< Unicode start-of-word boundary with \W\|\A at the start of the string and \w on the other side. \b{end}, \> Unicode end-of-word boundary with \w on one side and \W\|\z at the end. \b{start-half} Half of a Unicode start-of-word boundary with \W\|\A...
In a specified input string, replaces all strings that match a specified regular expression with a specified replacement string. Specified options modify the matching operation. Replace(String, String, String, RegexOptions, TimeSpan) In a specified input string, replaces all strings that match a ...
The Matches method is similar to theMatchmethod, except that it returns information about all the matches, instead of a single match, found in the input string. It is equivalent to the following code: VB DimmatchAsMatch = regex.Match(input)DoWhilematch.Success' Handle match here.....
A regular expression, specified as a string, must first be compiled into an instance of this class. The resulting pattern can then be used to create a Matcher object that can match arbitrary java.lang.CharSequence character sequences against the regular expression. All of the state involved in...