python regular expression findall

numbers6 Print(Re.findall ('\s','We j\tr \NOE\RHGORHG'))#\s matching whitespace characters: \ t, \ n, \ r, Space7 Print(Re.findall ('\s','We j\tr \NOE\RHGORHG'))#\s matches non-whitespace charactersSix, group matching#Group Matching#such as matching IP addressPrint(Re.findall (R'\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}','192.168.160.3'))#GroupingPrint(Re.search (R'\d{1,3} (\.\d{1,3}) {3}','192.168.160.3'). Group ())Print(Re.findall (R'\d{1,3} (\.\d{1,3}) {3}','192.168.160.3'))#

In the previous article, we used the RE module to match some of the contents of a long string. Next we'll make a match "[email protected] Advantage 314159265358 1892673 3.14 little Girl try_your_best [email protected] Python 3 "Our goal is to match ' 56 ', where \d represents a matching number, {2} indicates a match number of two times, {M,n},m,n are non-negative integers, mIn fact, when we use regular expr

Regular expression pattern:Except for the control character (+?. * ^ $ () [] {} | \), all characters match themselves. You can escape the control character by using the backslash before it.The following table lists the available regular expression syntax in Python:

number. "'" ' Res1=re.match (' \d+ ', ' DDHFS33Y98Y392CHHDF ') res2=re.search (' \d+ ', ' dasdjkhf7fn84857fjg749 ') ifres1:printres1.group () else: print ' no ' ifres2:printres2.group () else: print ' no ' difference: Match starts from the start position, only starts from the beginning, does not return the entire content of the Nonesearch to match, looks at the entire string lookup until it is found, returns an object "' #findall函数res3 =re.findall ('

Python -- Regular Expression (5) 6. FAQsRegular Expressions are very powerful tools in applications, but sometimes they cannot be executed intuitively as you wish. This section describes some common problems with using regular expressions. Certificate --------------------------------------------------------------------

. FindAll () put all the matching results into the list.# ret = Re.search (' (? P#ret = Re.findall (' (? P3, Re.compile first compiled into matching objects can be called multiple times by other methodsobj = Re.compile (' \.com ') ret = Obj.findall ("www.baidu.com,https://www.google.com.cn") print ret #结果 ['. com ', '. com ']ret = Obj.search (www.baidu.com,https://www.google.com.cn). Group () print RET #结果. comThis article simply explains the basic ap

Recently, we need to export the site address of the Google search results. Then, the regular expression in python is used to extract the search results. This involves several issues to be solved: 1. Obtain the search result text To get more addresses, I used Google's advanced search function,Each pageDisplay 100 results. After obtaining the displayed result,

expression) Regex=re.compile (R ' (\bt\w+) \w+ (\w+) ') print ' Inputtext : ',textprint ' pattern : ', Regex.patternmatch=regex.search (text) print ' entirematch : ', Match.group (0) #表示整个表达式的字符串, sub-group sort print ' worldstartwith "T" starting from 1: ', Match.group (1) #匹配到的第一组print ' worldafter "T" NBSP;WORDNBSP;: ', Match.group (2) # The second group matched to the #python extended the basic grou

also use the matchMa = Re.match (R ' Imooc ', ' Imooc python ', re. I) Print (Ma.group ())OutputImoocSyntax for regular expressions (ref. http://www.runoob.com/python/python-reg-expressions.html)Mode Mode Description ^ Matches the beginning of a string $ Matches