vb.net正则快速入门 vbs 正则
vb.net 正则表达式
正则表达式是：
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/[a-zA-Z/]+$
如果要把第一个斜杠去掉，就是匹配index/index/index，用后向匹配，正则是：
(?=/)[a-zA-Z/]+$
VB.NET的正则表达式
Imports System.Text.RegularExpressions '引入命名空间
dim isTrue as boolean = regex.Match(textbox1.text, _
"(.*\x22.*\x22.*)|(.*\x27.*\x27.*)").Success
' 可匹配形如："5648ffq" ,'454564565', 35235"ere"333, 434'ppp'89eru 等
'如果要匹配中文的“”、‘’
'改为："(.*\u201C.*\u201D.*)|(.*\u2018.*\u2019.*)"
vb.net正则表达式
Imports System.Text.RegularExpressions
Public Class Form1
Public Function MadeRegexArray(ByVal strText As String, ByVal strRegx As String, ByVal rexOpt As RegexOptions, ByVal Groups As Integer) As String()
REM 正则结果直接以字符串组形式返回
REM strHtml待搜索的字符串
REM strRegx正则表达式
REM rexOpt正则选项
On Error Resume Next
Return MadeMatchString(MadeRegexMatch(strText, strRegx, rexOpt), Groups)
End Function
Public Function MadeMatchString(ByVal mc As MatchCollection, ByVal Groups As Integer) As String()
REM 把MatchCollection以字符串组形式保存
REM mc正则匹配的集合
REM 返回字符串组
On Error Resume Next
Dim strRegCode(mc.Count) As String
For i As Integer = 0 To mc.Count - 1
strRegCode(i) = mc(i).Groups(Groups).Value
Next i
Return strRegCode
End Function
Public Function MadeRegexMatch(ByVal strText As String, ByVal strRegex As String, ByVal rexOpt As RegexOptions) As MatchCollection
REM 获取正则表达式匹配的集合
REM strHtml待正则的字符串
REM strRegex正则表达式
REM rexOpt正则选项
REM 返回 MatchCollection 类型集合
On Error Resume Next
Dim rex As Regex = New Regex(strRegex, rexOpt)
Return rex.Matches(strText)
End Function
Public Function MadeRegexReplace(ByVal sText As String, ByVal sRegex As String, ByVal sReplace As String) As String
REM 正则表达式文本替换
REM sText原文本
REM sRegex表达式
REM sReplace替换文本
On Error Resume Next
Dim rex As Regex = New Regex(sRegex, RegexOptions.IgnoreCase)
Return rex.Replace(sText, sReplace)
End Function
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
On Error Resume Next
Dim sRegex As String = "([\s\S]*?)"
Dim aTable() As String = MadeRegexArray(TextBox1.Text, sRegex, RegexOptions.IgnoreCase, 1)
For i As Integer = 0 To aTable.Length - 1
TextBox2.Text = TextBox2.Text aTable(i)
Next i
End Sub
End Class
如图：
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