定期表达fidn重复< br>在一个字符串中 [英] Regular expresion to fidn repeated <br> in a string

问题描述

HI

我想做的是只替换多个< br>标签同时发生....< br>< br>< br>< br> ...应该被单个< br>替换标签。

HI
what I m trying to do is to only replace multiple <br> tags occurring simultaneously e.g. ....<br><br><br><br>... should be replaced by single <br> tag.

result = Regex.Replace(result, "(\r)( )+(\r)", "\r\r", RegexOptions.IgnoreCase);

我试过

I have tried

{<br>}( )+{<br>}
[<br>]( )+[<br>]
(<br>)( )+(<br>)

但它不起作用。



谢谢，

But it doesn't work.

Thanks,
A

推荐答案

如果要替换所有

<br>

使用，尝试使用Regex.Replace（）方法：

with "", try Regex.Replace() method:

Imports System
Imports System.Text.RegularExpressions

Public Module Module1
    Public Sub Main()
        ' original string
        Dim input As String = "blah<br> blah<br>,,,"
        Dim output As String = Regex.Replace(input, "<br>", "")
        ' print out
        Console.WriteLine(input)
        Console.WriteLine(output)
    End Sub
End Module

++++ [第2轮] +++++

如果您打算替换连续的休息时间，例如

++++[Round 2]+++++
If you meant to replace consecutive breaks like

blah<br><br>blah

一张

with a single

<br>

然后试试这个：

then try this:

Dim input As String = "blah<br> blah<br><br>,,,"
Dim output As String = Regex.Replace(input, "(<br>){2,}", "<br>")

{2，}表示前面两种或多种模式。

{2,} means 2 or more of the preceding pattern.

试试这个：

Dim Your_String As String = "dsfsdfsdfsdfs <br> dsfsdfsdfsdfsdf <br><br><br><br><br><br> sdfsdf <br><br> sdfgssdg <br><br><br> sdfdsf <br> dssfsf <br>"

Dim options As RegexOptions = RegexOptions.None

Dim regex As New Regex("[<br>]{2,}", options)

Your_String = regex.Replace(Your_String, "<br>")

参考： http://stackoverflow.com/a/206720/2645738 [ ^ ]



问候..

Reference : http://stackoverflow.com/a/206720/2645738[^]

Regards..

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