本文整理汇总了VB.NET中System.Text.RegularExpressions.Regex.IsMatch方法的典型用法代码示例。如果您正苦于以下问题：VB.NET Regex.IsMatch方法的具体用法？VB.NET Regex.IsMatch怎么用？VB.NET Regex.IsMatch使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Text.RegularExpressions.Regex的用法示例。
在下文中一共展示了Regex.IsMatch方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: Example
' 导入命名空间
Imports System.Text.RegularExpressions
Module Example
Public Sub Main()
Dim partNumbers() As String = { "1298-673-4192", "A08Z-931-468A", _
"_A90-123-129X", "12345-KKA-1230", _
"0919-2893-1256" }
Dim rgx As New Regex("^[a-zA-Z0-9]\d{2}[a-zA-Z0-9](-\d{3}){2}[A-Za-z0-9]$")
For Each partNumber As String In partNumbers
Console.WriteLine("{0} {1} a valid part number.", _
partNumber, _
IIF(rgx.IsMatch(partNumber), "is", "is not"))
Next
End Sub
End Module输出：
1298-673-4192 is a valid part number. A08Z-931-468A is a valid part number. _A90-123-129X is not a valid part number. 12345-KKA-1230 is not a valid part number. 0919-2893-1256 is not a valid part number.
示例2: Example
' 导入命名空间
Imports System.Text.RegularExpressions
Module Example
Public Sub Main()
Dim partNumbers() As String = { "Part Number: 1298-673-4192", "Part No: A08Z-931-468A", _
"_A90-123-129X", "123K-000-1230", _
"SKU: 0919-2893-1256" }
Dim rgx As New Regex("[a-zA-Z0-9]\d{2}[a-zA-Z0-9](-\d{3}){2}[A-Za-z0-9]$")
For Each partNumber As String In partNumbers
Dim start As Integer = partNumber.IndexOf(":"c)
If start >= 0 Then
Console.WriteLine("{0} {1} a valid part number.", _
partNumber, _
IIF(rgx.IsMatch(partNumber, start), "is", "is not"))
Else
Console.WriteLine("Cannot find starting position in {0}.", partNumber)
End If
Next
End Sub
End Module输出：
Part Number: 1298-673-4192 is a valid part number. Part No: A08Z-931-468A is a valid part number. Cannot find starting position in _A90-123-129X. Cannot find starting position in 123K-000-1230. SKU: 0919-2893-1256 is not a valid part number.
示例3: Example
' 导入命名空间
Imports System.Text.RegularExpressions
Module Example
Public Sub Main()
Dim partNumbers() As String = { "1298-673-4192", "A08Z-931-468A", _
"_A90-123-129X", "12345-KKA-1230", _
"0919-2893-1256" }
Dim pattern As String = "^[a-zA-Z0-9]\d{2}[a-zA-Z0-9](-\d{3}){2}[A-Za-z0-9]$"
For Each partNumber As String In partNumbers
Console.WriteLine("{0} {1} a valid part number.", _
partNumber, _
IIF(Regex.IsMatch(partNumber, pattern), "is", "is not"))
Next
End Sub
End Module输出：
1298-673-4192 is a valid part number. A08Z-931-468A is a valid part number. _A90-123-129X is not a valid part number. 12345-KKA-1230 is not a valid part number. 0919-2893-1256 is not a valid part number.
示例4: Example
' 导入命名空间
Imports System.Text.RegularExpressions
Module Example
Public Sub Main()
Dim partNumbers() As String = { "1298-673-4192", "A08Z-931-468a", _
"_A90-123-129X", "12345-KKA-1230", _
"0919-2893-1256" }
Dim pattern As String = "^[A-Z0-9]\d{2}[A-Z0-9](-\d{3}){2}[A-Z0-9]$"
For Each partNumber As String In partNumbers
Console.WriteLine("{0} {1} a valid part number.", _
partNumber, _
IIF(Regex.IsMatch(partNumber, pattern, RegexOptions.IgnoreCase), _
"is", "is not"))
Next
End Sub
End Module输出：
1298-673-4192 is a valid part number. A08Z-931-468a is a valid part number. _A90-123-129X is not a valid part number. 12345-KKA-1230 is not a valid part number. 0919-2893-1256 is not a valid part number.
示例5: Example
' 导入命名空间
Imports System.Text.RegularExpressions
Module Example
Public Sub Main()
Dim partNumbers() As String = { "1298-673-4192", "A08Z-931-468a",
"_A90-123-129X", "12345-KKA-1230",
"0919-2893-1256" }
Dim pattern As String = "^[A-Z0-9]\d{2}[A-Z0-9](-\d{3}){2}[A-Z0-9]$"
For Each partNumber As String In partNumbers
Try
Console.WriteLine("{0} {1} a valid part number.",
partNumber, _
IIF(Regex.IsMatch(partNumber, pattern, RegexOptions.IgnoreCase), _
"is", "is not"),
TimeSpan.FromMilliseconds(500))
Catch e As RegexMatchTimeoutException
Console.WriteLine("Timeout after {0} seconds matching {1}.",
e.MatchTimeout, e.Input)
End Try
Next
End Sub
End Module输出：
1298-673-4192 is a valid part number. A08Z-931-468a is a valid part number. _A90-123-129X is not a valid part number. 12345-KKA-1230 is not a valid part number. 0919-2893-1256 is not a valid part number.
示例6: Tester
' 导入命名空间
Imports System.Text.RegularExpressions
Public Class Tester
Public Shared Sub Main
Dim testString As String
Dim emailPattern As String = _
"^([0-9a-zA-Z]+[-._+&])*[0-9a-zA-Z]+@" & _
"([-0-9a-zA-Z]+[.])+[a-zA-Z]{2,6}$"
testString = "a@nowhere.com"
Console.WriteLine(testString & Space(3) & _
Regex.IsMatch(testString, emailPattern))
testString = "a@doe@mybad.com"
Console.WriteLine(testString & Space(3) & _
Regex.IsMatch(testString, emailPattern))
End Sub
End Class