用vb点虐 取得IP重复问题（如何判断是IPv4还是IPv6）

这儿有一个C#的参考

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我给改写成了VB点虐  看看你能用上不？

Imports System.Diagnostics

Imports System.Text.RegularExpressions

Module mdlIpDns

Public Function RunCMD(ByVal FileName As String, ByVal Arguments As String, ByVal RecordLog As Boolean) As String

REM 运行一个控制台程序并返回其输出参数

Try

If RecordLog = True Then Trace.WriteLine(FileName + " " + Arguments)

Dim myProc As Process = New Process

myProc.StartInfo.FileName = FileName

myProc.StartInfo.CreateNoWindow = True

myProc.StartInfo.Arguments = Arguments

myProc.StartInfo.RedirectStandardOutput = True

myProc.StartInfo.UseShellExecute = False

myProc.Start()

Dim myStreamReader As System.IO.StreamReader = New System.IO.StreamReader(myProc.StandardOutput.BaseStream, System.Text.Encoding.Default)

Dim myText As String = myStreamReader.ReadToEnd

myStreamReader.Close()

If RecordLog = True Then Trace.WriteLine(myText)

If Not myProc.HasExited Then myProc.Kill()

Return myText

Catch ex As Exception

Trace.WriteLine(ex.ToString)

Return vbNull

End Try

End Function

Public Function GetAllIp() As String

REM 获取本机全部网卡的IP地址

GetAllIp = ""

Dim Address() As System.Net.IPAddress

Dim i As Integer

Address = System.Net.Dns.GetHostEntry(System.Net.Dns.GetHostName()).AddressList

For i = 0 To UBound(Address)

GetAllIp = GetAllIp (Chr(13) Address(i).ToString())

Next

End Function

Public Function GetPrimaryDNS() As String

REM 获取本机主DNS

GetPrimaryDNS = ""

Dim m As System.Text.RegularExpressions.Match

Dim myResult As String = RunCMD("nslookup", "", True) '需要RunCMD.mdl

m = Regex.Match(myResult, "\d+\.\d+\.\d+\.\d+")

If m.Success Then

Return m.Value

Else

Return vbNull

End If

End Function

Public Function GetLocalIP() As String

REM 获取本机正在使用的IPv4地址

REM 1.一个电脑有多个网卡，有线的、无线的、还有VMare虚拟的两个网卡。

REM 2.就算只有一个网卡，但是该网卡配置了N个IP地址.其中还包括IPv6地址。

REM 3.下面通过查询本机路由表，获取访问默认网关时使用的网卡IP。

Dim m As System.Text.RegularExpressions.Match

Dim myResult As String = RunCMD("route", "print", True) '需要RunCMD.mdl

m = Regex.Match(myResult, "0.0.0.0\s+0.0.0.0\s+(\d+.\d+.\d+.\d+)\s+(\d+.\d+.\d+.\d+)")

If m.Success Then

Return m.Groups(2).Value

Else

Try

Dim myTcpClient As System.Net.Sockets.TcpClient = New System.Net.Sockets.TcpClient

myTcpClient.Connect("", 80) '连接百度判断IP

Dim myIpPoint As System.Net.IPEndPoint = myTcpClient.Client.LocalEndPoint

Dim myIp As String = myIpPoint.Address.ToString

myTcpClient.Close()

Return myIp

Catch ex As Exception

Return vbNull

End Try

End If

End Function

End Module

vb点虐 的获取计算机名称问题

My功能可以替代很多API，因为CLR已经封装了大量系统函数，不建议使用API，那样会限制程序的可移植性。（微软声称.NET FRAMEWORK是跨平台的，但是迄今都没看见在Linux上的.NET 程序）

多翻翻MSDN就知道东西怎么用了

VB如果获取电脑的名称

VB获取计算机名称的方法如下：

说明：计算机名就是打开控制面板-系统-网络标识-完整的计算机名称

Private Declare Function GetComputerName Lib "kernel32"

Alias "GetComputerNameA" (ByVal lpBuffer As String, nSize As Long) As Long

Private Sub Command1_Click()

Dim Name As String, Length As Long

Length = 225

Name = String(Length, Chr(0))

GetComputerName Name, Length

Name = Left(Name, Length)

Label1.Caption = Name

End Sub

Private Sub Form_Load()

End Sub

注意：该方法是通过kernel32.dll来获取的，chr(0)返回的就是计算机名。

kernel32.dll是Windows9x/Me中非常重要的32位动态链接库文件，属于内核级文件。它控制着系统的内存管理、数据的输入输出操作和中断处理，当Windows启动时，kernel32.dll就驻留在内存中特定的写保护区域，使别的程序无法占用这个内存区域。

vb点虐 获取局域网计算机的当前用户名和计算机型号等信息

Private Declare Function GetComputerName Lib "kernel32" Alias "GetComputerNameA" (ByVal lpBuffer As String, nSize As Long) As Long

Private Declare Function GetUserName Lib "advapi32.dll" Alias "GetUserNameA" (ByVal lpBuffer As String, nSize As Long) As Long

Private Sub GetName()

Dim sJM As String

Dim sMC As String

Dim sIP As String

Dim s As String

s = String(128, Chr(0))

GetComputerName s, Len(s)

s = UCase(Left(s, InStr(1, s, Chr(0)) - 1))

sJM = s'计算机名称

s = String(128, Chr(0))

GetUserName s, Len(s)

s = UCase(Left(s, InStr(1, s, Chr(0)) - 1))

sMC = s‘当前用户名称

End Sub

'用这种方法在远程获得再发回本机就可以吧

'取计算机型号暂时不会

本文名称：vb点虐 计算机名 vbnet trim
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