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Use RegEx. when using the match () method, you want to match a substring, but the content to be matched may contain line breaks in the resources I load, for example, if the content of my resource is John \ r \ n
C # Regular Expression Regex class usage,
I. C # Regular Expression symbol Mode
Character
Description
\
Escape Character, escape a character with special functions into a common character, or vice versa
^
Match
To remember Python regex easily, we organise Python regex notes from concrete to abstract, and from simple to sophisticate D.I, Important character:1, quantitive character:? : [0,1], *:[0,INFI), +:(0,infi), {N}:[n rep], {m,}:[m, infi), {, n}:[0,n], {
There was a time when regular expression learning was hot and trendy, and there were several regular expression posts in csdn one day, and that time, with the help of the Forum and the C # string and regular expression reference manual published by
I (pcre_caseless)If this modifier is set , the letters in the pattern are case insensitive and match . m (pcre_multiline)By default, pcre that the target string is made up of one-line characters(However, it may actually contain multiple lines),
What is a regular expression?Regular expressions, also known as formal representations, general representations (English: Regular Expression, often abbreviated as regex, RegExp, or re) in code, are a concept of computer science. A regular expression
Regular expressions provide a compact notation that can be used to represent a combination of strings, and a single regular expression can represent an infinite number of strings. 5 Common uses: analysis, search, search and Replace, string
For a while, regular expression learning was hot and trendy, and at that time, several regular expression posts could be seen in the Csdn day, and some of the basics were learned with the help of the Forum and the "C # string and regular Expression
Personally, the main use of it to do some complex string analysis, extract the desired informationLearning principles: Enough on the line, when needed in depth
The summary is as follows:
Special symbols in regular expressions:
"." Table any
The study of PHP regular expressions is a very powerful tool. we may use it anywhere...
Regular expressions are a very powerful tool. we may use them anywhere...I have worked hard on regular expressions, but I still forget it after a long time...Let'
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