Please help to see a regular expression match-CodePudding

Problem description:
Received the following string:

 source='s186. ChapterId=1211864040; S186. ContentId=1215033291; S186. ContentType=1; S186. DurationInSeconds=927; S186. FreePreview=null; S186. GmtCreate=null; S186. GmtModified=null; S186. Id=1217999465; S186. JsonContent=null; S186. LearnCount=null; S186. LessonId=1214394275; S186. Live=null; S186. LiveInfoDto=null; S186. Name="5.3.3 rotor critical speed"; '

Use regular expressions:

 
The pattern=re.com running (r '. *? ContentType=1. *? Id=(\ d +). + name="(. *?) ". *? The test ') 
Lesson_set=re. The.findall (pattern, source)

The results obtained are:
[(' 1214394275 ', '- 5.3.3 rotor critical speed (15:27)')]

Question: I need id is 1217999465, and the expression for the lessonId id value 1214394275
This string of s186. Id=1217999465 ; S186. JsonContent=null; S186. LearnCount=null; s186. LessonId=1214394275

Could you tell me how to modify the matching rule should get s186. Id=1217999465 the id value,

CodePudding user response:

 
The import re 
Source="' s186. ChapterId=1211864040; S186. ContentId=1215033291; S186. ContentType=1; S186. DurationInSeconds=927; S186. FreePreview=null; S186. GmtCreate=null; S186. GmtModified=null; S186. Id=1217999465; S186. JsonContent=null; S186. LearnCount=null; S186. LessonId=1214394275; S186. Live=null; S186. LiveInfoDto=null; S186. Name="5.3.3 rotor critical speed"; "' 
R=re. The.findall (' s186 \. Id=(\ d +); ', source) 
Print (r) 

"' [] '1217999465'" '

CodePudding user response:

 x=re. The.findall (" (? <=s186. Id=) (\ d *) ", source)

CodePudding user response:

reference 1st floor zhulin0909 response:

 
The import re 
Source="' s186. ChapterId=1211864040; S186. ContentId=1215033291; S186. ContentType=1; S186. DurationInSeconds=927; S186. FreePreview=null; S186. GmtCreate=null; S186. GmtModified=null; S186. Id=1217999465; S186. JsonContent=null; S186. LearnCount=null; S186. LessonId=1214394275; S186. Live=null; S186. LiveInfoDto=null; S186. Name="5.3.3 rotor critical speed"; "' 
R=re. The.findall (' s186 \. Id=(\ d +); ', source) 
Print (r) 

"' [] '1217999465'" '

Hard you,
If only modify the pattern=re.com running (r '. *? ContentType=1. *? Id=(\ d +). + name="(. *?) ". *? How to modify the test '), I added one in front of the id \. Or not,

CodePudding user response:

Because here is s186. Id and s187, s188 etc. Many of these,

CodePudding user response:

The import re

The source='s186. ChapterId=1211864040; S186. ContentId=1215033291; S186. ContentType=1; S186. DurationInSeconds=927; S186. FreePreview=null; S186. GmtCreate=null; S186. GmtModified=null; S186. Id=1217999465; S186. JsonContent=null; S186. LearnCount=null; S186. LessonId=1214394275; S186. Live=null; S186. LiveInfoDto=null; S186. Name="5.3.3 rotor critical speed"; '
Pattern=re.com from running (r 's \ d + \. Id=\ d +')
Lesson_set=re. The.findall (pattern, source)
Print (lesson_set)

CodePudding user response:

 import re 

The source='s186. ChapterId=1211864040; S186. ContentId=1215033291; S186. ContentType=1; S186. DurationInSeconds=927; S186. FreePreview=null; S186. GmtCreate=null; S186. GmtModified=null; S186. Id=1217999465; S186. JsonContent=null; S186. LearnCount=null; S186. LessonId=1214394275; S186. Live=null; S186. LiveInfoDto=null; S186. Name="5.3.3 rotor critical speed"; '
Pattern=re.com from running (r 's \ d + \. Id=\ d +') 
Lesson_set=re. The.findall (pattern, source) 
Print (lesson_set)