Asp.net new Regex the title method in regular expression

Asp tutorial. net new regex the title method in regular expression

Using system. text. regularexpressions; // regular

String strhtml = "</ul> <div id =" photo-tags ">

Regex re = new regex ("(? <= <Li> <a href = '/user/[^>] */tags/[^>] *> ).*? (? = </A> </li> )");

If (re. ismatch (strhtml ))
      {
Matchcollection mc = re. matches (strhtml );
Foreach (match ma in mc)
          {
For (int I = 0; I <ma. groups tutorial. count; I ++)
              {
Textbox2.text + = ma. groups [I]. value + "";
              }
Textbox2.text + = "n ";
          }
      }
Else
      {
Textbox2.text = "no ";
      }

 

Result:

Belgium
Belgien
Urlaub
Holidays
Vakanties
Centerparcs
10 000 000

The following example uses a regular expression to check repeated words in a string. Regular expression B (? <Word> w +) s + (k <word>) B can be interpreted as follows.

Mode
Description
 
B
Match from the word boundary.
 
(? <Word> w +)
Match one or more word characters (up to the word boundary ). Name the capture group word.
 
S +
Matches one or more white spaces.
 
(K <word>)
Match the capture group named word.
 
B
Match the word boundary.
 
If the current system culture is en-us, the resulting regular expression will be ^ w * [+-]? W? $? W? (D *.? D {2 }?) {1} $. This regular expression can be explained as shown in the following table.

Mode
Description
 
^
Start at the beginning of the string.
 
W *
Matches zero or multiple white spaces.
 
[+-]?
Matches zero or one of the positive or negative signs.
 
W?
Matches zero or one blank character.
 
$?
Matches zero or one of the dollar signs.
 
W?
Matches zero or one blank character.
 
D *
Matches zero or multiple decimal numbers.
 
.?
Matches zero or one decimal point.
 
D {2 }?
Matches two decimal digits zero times or once.
 
(D *.? D {2 }?) {1}
Match at least once the decimal point is used to separate integers and decimals.
 
$
Matching the end of a string