文章来源： http://zhidao.baidu.com/question/13804719.html

一个server端
Private Sub Command1_Click()

End

End Sub

Private Sub Command2_Click()
Winsockserver.SendData Text4.Text + ":" + textsend.Text

textget.Text = textget.Text + vbCrLf + Text4.Text + ":" + textsend.Text + " " + Str(Time)
textsend.Text = ""
End Sub

Private Sub Form_Load()
Command2.Visible = False
textsend.Visible = False
Text4.Visible = False
textget.Visible = False
Label1.Visible = False
Winsockserver.LocalPort = 1001

Winsockserver.Listen

End Sub

Private Sub textsend_Change()

'Winsockserver.SendData textsend.text

End Sub

Private Sub textsend_KeyPress(KeyAscii As Integer)
'If KeyAscii = 13 Then
'Winsockserver.SendData textsend.text
'textsend.text = ""
If KeyAscii = 13 Then
Winsockserver.SendData textsend.Text
' Text1.text = Text1.text + vbCrLf + Text4.text + ": " + Text2.text + " " + Str(Time)
textsend.Text = ""

End If
End Sub

Private Sub Timer1_Timer()
If Text4.Text = "" Then Text4.Text = "no name"
End Sub

Private Sub Winsockserver_Close()

Winsockserver.Close

End

End Sub

Private Sub Winsockserver_ConnectionRequest(ByVal requestID As Long)
Command2.Visible = True
textsend.Visible = True

textget.Visible = True
Text4.Visible = True
Label1.Visible = True
If Winsockserver.State <> sckClosed Then Winsockserver.Close

Winsockserver.Accept requestID

End Sub

Private Sub Winsockserver_DataArrival(ByVal bytesTotal As Long)

Dim tmpstr As String

Winsockserver.GetData tmpstr

'textget.text = textget + tmpstr + textsend
textget.Text = textget.Text + vbCrLf + tmpstr + " " + Str(Time)
End Sub

'（1）Command1：退出按钮；

'（2）textsend：发送数据文本框；

'（3）Winsockserver： 服务器Winsock；

'（4）textget ：接收数据文本框。

一个client端
Private Sub Command1_Click()

End

End Sub

Private Sub Command2_Click()
On Error Resume Next
Winsockclient.RemoteHost = Text1.Text
Winsockclient.Connect

End Sub

Private Sub Command3_Click()
Winsockclient.SendData Text4.Text + ":" + textsend.Text

textget.Text = textget.Text + vbCrLf + Text4.Text + ":" + textsend.Text + " " + Str(Time)
textsend.Text = ""
End Sub

Private Sub Form_Load()
Command3.Visible = False
textsend.Visible = False
Text4.Visible = False
textget.Visible = False
Label2.Visible = False
Label3.Visible = False
Command2.Enabled = True
Winsockclient.RemoteHost = "192.168.1.211"
Winsockclient.RemotePort = 1001

Winsockclient.RemoteHost = "sccdsz"

End Sub

Private Sub Text1_Change()
Command2.Enabled = True
'Winsockclient.RemoteHost = Text1.Text

End Sub

Private Sub textsend_Change()

'Winsockclient.SendData textsend.Text

End Sub

Private Sub textsend_KeyPress(KeyAscii As Integer)
'If KeyAscii = 13 Then
'Winsockclient.SendData textsend.Text
'textsend.Text = ""
If KeyAscii = 13 Then
Winsockclient.SendData Text4.Text + ":" + textsend.Text
textsend.Text = ""
'End If
End If
End Sub

Private Sub Timer1_Timer()
On Error Resume Next
Winsockclient.Connect
Winsockclient.RemoteHost = Text1.Text
End Sub

Private Sub Winsockclient_Close()

Winsockclient.Close

End

End Sub

Private Sub winsockclient_Connect()

textsend.Visible = True

textget.Visible = True
Label2.Visible = True
Label3.Visible = True
Text4.Visible = True
Command2.Enabled = True
Command2.Visible = True
Command3.Visible = True
End Sub

Private Sub winsockclient_DataArrival(ByVal bytesTotal As Long)

Dim tmpstr As String

Winsockclient.GetData tmpstr

textget.Text = textget.Text + vbCrLf + tmpstr + " " + Str(Time)

End Sub

'（1）Command1：退出按钮；

'（2）Command2：连接按钮；

'（3）Winsockclient：客户Winsock；

'（4）Text1：主机名文本框；

'（5）Textsend：发送数据文本框；

'（6）Textget：接收数据文本框； 客户机程序的界面如图所示。