vb.net正则判断ip端口格式

Dim ip As String = "192.168.0.1"

' 创建正则表达式对象
Dim regex As New System.Text.RegularExpressions.Regex("^(\d{1,3}\.){3}\d{1,3}$")

' 判断是否是 IP 地址
If regex.IsMatch(ip) Then
Console.WriteLine("The string is an IP address.")
Else
Console.WriteLine("The string is not an IP address.")
End If

Dim ipAndPort As String = "192.168.0.1:8080"

' 创建正则表达式对象
Dim regex As New System.Text.RegularExpressions.Regex("^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}:\d+$")

' 判断是否是 IP 地址加端口
If regex.IsMatch(ipAndPort) Then
Console.WriteLine("The string is an IP address with port.")
Else
Console.WriteLine("The string is not an IP address with port.")
End If

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