Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
regular expressions
Search
多火工作室
May 09, 2015
Education
0
79
regular expressions
多火工作室#技术群殴#
多火工作室
May 09, 2015
Tweet
Share
More Decks by 多火工作室
See All by 多火工作室
github&git
luxiaojijan
1
250
Nodejs实现RESTful api
luxiaojijan
1
150
机器人餐厅
luxiaojijan
0
110
做全栈的java开发者
luxiaojijan
0
120
python的介绍与web实战
luxiaojijan
0
110
Other Decks in Education
See All in Education
Activité_5_-_Les_indicateurs_du_climat_global.pdf
bernhardsvt
0
140
栃木にいても「だいじ」だっぺ〜! 栃木&全国アジャイルコミュニティへの参加・運営の魅力
sasakendayo
1
140
TeXで変える教育現場
doratex
1
13k
【dip】「なりたい自分」に近づくための、「自分と向き合う」小さな振り返り
dip_tech
PRO
0
230
✅ レポート採点基準 / How Your Reports Are Assessed
yasslab
PRO
0
280
AIで日本はどう進化する? 〜キミが生きる2035年の地図〜
behomazn
0
110
Semantic Web and Web 3.0 - Lecture 9 - Web Technologies (1019888BNR)
signer
PRO
2
3.2k
Surviving the surfaceless web
jonoalderson
0
350
TypeScript初心者向け完全ガイド
mickey_kubo
1
120
JAPAN AI CUP Prediction Tutorial
upura
1
630
心理学を学び活用することで偉大なスクラムマスターを目指す − 大学とコミュニティを組み合わせた学びの循環 / Becoming a great Scrum Master by learning and using psychology
psj59129
1
1.7k
滑空スポーツ講習会2025(実技講習)EMFT学科講習資料/JSA EMFT 2025
jsaseminar
0
230
Featured
See All Featured
Building a Modern Day E-commerce SEO Strategy
aleyda
45
8.6k
Hiding What from Whom? A Critical Review of the History of Programming languages for Music
tomoyanonymous
2
420
Design in an AI World
tapps
0
140
A Guide to Academic Writing Using Generative AI - A Workshop
ks91
PRO
0
200
Site-Speed That Sticks
csswizardry
13
1.1k
Visualization
eitanlees
150
17k
From π to Pie charts
rasagy
0
120
Dealing with People You Can't Stand - Big Design 2015
cassininazir
367
27k
Claude Code のすすめ
schroneko
67
210k
Designing Experiences People Love
moore
144
24k
The SEO identity crisis: Don't let AI make you average
varn
0
240
How People are Using Generative and Agentic AI to Supercharge Their Products, Projects, Services and Value Streams Today
helenjbeal
1
120
Transcript
<=?]
/^Hello [Ww]orld.?$/
Regular Expressions ᆞ ᄵ і ղ ൔ
ु༯đᆃ൞હ݆Ĥ
ୄઑđݺگᄖđྀ࢚ϔĆ
/pattern/
None
None
字符串的匹配,查找,替换
POSIX & Unix & Programme Unix tools(vim/vi ) Used by
all programming languages(Perl)
<=?]
// (the construct)
?(zero or one) +(one or more) *(zero or more) {n,m}(only
match n to m)
a* a+ a? a{1,3}
^ (匹配开始) $ (结束匹配) \b (开始或者结束)
[.+*] (匹配.或者+或者*) [^.+*] (匹配除了.+*之外的字符)
\d = [0-9] \w = [A-Za-z0-9] \s = [\t\r\n] —表⽰示范围
(匹配除了换⾏行符之外,任⼀一个字符) a(匹配除⼀一个点符号) 转义
/^Hello [Ww]orld.?$/ 开始符号 精确匹配Hello 匹配W或者w 结束 可能出现0次或者1次
/^Hello [Ww]orld.?$/ Hello World Hello world Hello World!
(http://)?w{3}\.[a-z]+\.com www.google.com http://duohuo.org www.zcool.com.cn
/[0-9]{5}(-[0-9]{4})?/ 12345 12345-6789 123-6789
/[0-9]+(-[0-9]{4})?/ 12345 12345-6789 123-6789
() group
反向引用(Backreferences) 小括号里面的正则捕获内容,会进行分组,每个分组会有一个组号, 第一个出现组号为1,第二个出现组号为2。
/(.o)\1r/ dolor
/\b(?:\d{1,3}\.){3}\d{1,3}\b/ 999.999.999.999