爱站程序员基地正则表达式JavaScript版本
- 1.Lesson 1: An Introduction, and the ABCs
- 2.Lesson 1½: The 123s
- 3.Lesson 2: The Dot
- 4.Lesson 3: Matching specific characters
- 5.Lesson 4: Excluding specific characters
- 6.Lesson 5: Character ranges
- 7.Lesson 7: Mr. Kleene, Mr. Kleene
- 8.Lesson 8: Characters optional
- ９.Lesson 9: All this whitespace
- 10.Lesson 10: Starting and ending
- 11.Lesson 11: Match groups
- 12.Lesson 12: Nested groups
- 13.Lesson 13: More group work
- 14.Lesson 14: It\’s all conditional
- 15.Lesson 15: Other special characters
链接: RegexOne.
1.Lesson 1: An Introduction, and the ABCs
Exercise 1: Matching Characters
Task Text
Match abcdefg
Match abcde
Match abc
^{a-c}\\w*$/*^表示开始，$表示结束abc表示匹配字符串前缀\\w*中表示匹配字母，*表示出现0次或者多次。*/
2.Lesson 1½: The 123s
Exercise 1½: Matching Digits
Task Text
Match abc123xyz
Match define “123”
Match var g = 123;
^\\w+\\s?.+$/*\\w+表示匹配一个或多个字母\\s？表示匹配0个或1个空格.+表示匹配1个或多个任意字符*/
3.Lesson 2: The Dot
Exercise 2: Matching With Wildcards
Task Text
Match cat.
Match 896.
Match ?=+.
Skip abc1
^.+[^abc1]$/*.+表示匹配1个或多个任意字符[^abc1]抛除abc1字符*/
4.Lesson 3: Matching specific characters
Exercise 3: Matching Characters
Task Text
Match can
Match man
Match fan
Skip dan
Skip ran
Skip pan
^[cmf]an$/*[cmf]匹配字符串含c,m,f的前缀an是后缀*/
5.Lesson 4: Excluding specific characters
Exercise 4: Excluding Characters
Task Text
Match hog
Match dog
Skip bog
^[^b]og$/*[^b]匹配字符串不含b的前缀og是后缀*/
6.Lesson 5: Character ranges
Exercise 5: Matching Character Ranges
Task Text
Match Ana
Match Bob
Match Cpc
Skip aax
Skip bby
Skip ccz
^waz{3,5}up$/*z{3,5}中的z匹配3-5次*/
7.Lesson 7: Mr. Kleene, Mr. Kleene
Exercise 7: Matching Repeated Characters
Task Text
Match aaaabcc
Match aabbbbc
Match aacc
Skip a
^(aa)+b*c+$/*(aa)+,匹配1个或多个aab*出现0个或多个bc+出现1个或多个c*/
8.Lesson 8: Characters optional
Exercise 8: Matching Optional Characters
Task Text
Match 1 file found?
Match 2 files found?
Match 24 files found?
Skip No files found.
^\\d+\\s(\\w+\\s)+\\w+\\?$/*\\d+匹配一个或多个数字\\s匹配一个空格(\\w+\\s)+匹配一个或多个（字符串+空格）\\?匹配？*/
９.Lesson 9: All this whitespace
Exercise 9: Matching Whitespaces
Task Text
Match 1. abc
Match 2. abc
Match 3. abc
Skip 4.abc
^\\d\\.\\s+abc$/*\\d匹配一个数字\\.匹配.\\s+匹配一个或多个空格abc匹配abc*/
10.Lesson 10: Starting and ending
Exercise 10: Matching Lines
Task Text
Match Mission: successful
Skip Last Mission: unsuccessful
Skip Next Mission: successful upon capture of target
^\\w+\\:\\ssuccessful$/*\\w+匹配字符串\\:匹配:\\s匹配一个空格abc匹配abc*/
11.Lesson 11: Match groups
Exercise 11: Matching Groups
Task Text Capture Groups
Capture file_record_transcript.pdf file_record_transcript
Capture file_07241999.pdf file_07241999
Skip testfile_fake.pdf.tmp
^([\\w+_?\\d*]+)\\.pdf$/*[\\w+_?\\d*]+匹配字符串、下划线、数字串一个或多个\\.pdf匹配.pdf*/
12.Lesson 12: Nested groups
Exercise 12: Matching Nested Groups
Task Text Capture Groups
Capture Jan 1987 Jan 1987 1987
Capture May 1969 May 1969 1969
Capture Aug 2011 Aug 2011 2011
^(\\w+\\s+(\\d+))$/*\\w+\\s+(\\d+) 字符-空格-数字（1个或多个数字）*/
13.Lesson 13: More group work
Exercise 13: Matching Nested Groups
TaskTextCapture Groups
Capture1280x720 1280 720
Capture1920x16001920 1600
Capture1024x768 1024 768
^(\\d{3,4})[x|\\s](\\d{3,4})$/*(\\d{3,4})匹配3-4个数字[x|\\s]匹配空格或x*/
14.Lesson 14: It’s all conditional
Exercise 14: Matching Conditional Text
Task Text
Match I love cats
Match I love dogs
Skip I love logs
Skip I love cogs
^\\w\\s\\w+\\s(cats|dogs)$/*(cats|dogs)匹配cats或dogs*/
15.Lesson 15: Other special characters
Exercise 15: Matching Other Special Characters
Task Text
MatchThe quick brown fox jumps over the lazy dog.
MatchThere were 614 instances of students getting 90.0% or above.
MatchThe FCC had to censor the network for saying &$#*@!.
^(\\w+)\\s(\\w+)(\\d)*.+$/*(\\w+)\\s(\\w+)(\\d)* 匹配字符、空格、字符、数字.+匹配多个任意字符*/
御剑江湖载酒行，江湖邋遢不知名。笑听风雨身后事，与君携手发狂吟。
