给你一个判断一字符串是否是IP的函数 Private Function IsIP(strIP As String) As Boolean Dim a() As String Dim i Dim j As Integer
On Error GoTo errIP IsIP = True a = Split(strIP, ".") If (UBound(a) - LBound(a) <> 3) Then IsIP = False Else For i = LBound(a) To UBound(a) j = Int(a(i)) If ((j < 0) Or (j > 255)) Then IsIP = False End If Next i End If Exit Function errIP: IsIP = False End Function
还能收到计算机名? 好象只能收到IP的 accept之后控件属性里就有了
那倒不是 www.csdn.net 这个好象就有点,不过是计算机名
Sub main() MsgBox IsIP("192.168.2222.4") End Sub Function IsIP(Txt As String) As Boolean IsIP = False If Len(Txt) < 7 Then Exit Function '少于7个字符一般是错的 ''''''''''''''''''''''''''''''''''''''''''''' Dim TmpStr As String Dim DotNumber As Byte Dim IPStr() As String Dim i As Long For i = 1 To Len(Txt) TmpStr = Left(Txt, i) If Right(TmpStr, 1) = "." Then DotNumber = DotNumber + 1 Next If DotNumber <> 3 Then Exit Function 'IP中一定有三个 "." IPStr = Split(Txt, ".") If Not IsNumeric(IPStr(0)) Then Exit Function If CLng(IPStr(0)) > 255 Or CLng(IPStr(0)) < 0 Then Exit Function '必须小于256大于-1 If Not IsNumeric(IPStr(1)) Then Exit Function If CLng(IPStr(1)) > 255 Or CLng(IPStr(1)) < 0 Then Exit Function If Not IsNumeric(IPStr(2)) Then Exit Function If CLng(IPStr(2)) > 255 Or CLng(IPStr(2)) < 0 Then Exit Function If Not IsNumeric(IPStr(3)) Then Exit Function If CLng(IPStr(3)) > 255 Or CLng(IPStr(3)) < 0 Then Exit Function '每一个都必须是数字 '如果上述条件都满足,那么她就可能是IP IsIP = True End Function
Private Function IsIP(strIP As String) As Boolean
Dim a() As String
Dim i
Dim j As Integer
On Error GoTo errIP
IsIP = True
a = Split(strIP, ".")
If (UBound(a) - LBound(a) <> 3) Then
IsIP = False
Else
For i = LBound(a) To UBound(a)
j = Int(a(i))
If ((j < 0) Or (j > 255)) Then
IsIP = False
End If
Next i
End If
Exit Function
errIP:
IsIP = False
End Function
好象只能收到IP的
accept之后控件属性里就有了
www.csdn.net
这个好象就有点,不过是计算机名
MsgBox IsIP("192.168.2222.4")
End Sub
Function IsIP(Txt As String) As Boolean
IsIP = False
If Len(Txt) < 7 Then Exit Function '少于7个字符一般是错的
'''''''''''''''''''''''''''''''''''''''''''''
Dim TmpStr As String
Dim DotNumber As Byte
Dim IPStr() As String
Dim i As Long
For i = 1 To Len(Txt)
TmpStr = Left(Txt, i)
If Right(TmpStr, 1) = "." Then DotNumber = DotNumber + 1
Next
If DotNumber <> 3 Then Exit Function 'IP中一定有三个 "."
IPStr = Split(Txt, ".")
If Not IsNumeric(IPStr(0)) Then Exit Function
If CLng(IPStr(0)) > 255 Or CLng(IPStr(0)) < 0 Then Exit Function '必须小于256大于-1
If Not IsNumeric(IPStr(1)) Then Exit Function
If CLng(IPStr(1)) > 255 Or CLng(IPStr(1)) < 0 Then Exit Function
If Not IsNumeric(IPStr(2)) Then Exit Function
If CLng(IPStr(2)) > 255 Or CLng(IPStr(2)) < 0 Then Exit Function
If Not IsNumeric(IPStr(3)) Then Exit Function
If CLng(IPStr(3)) > 255 Or CLng(IPStr(3)) < 0 Then Exit Function
'每一个都必须是数字
'如果上述条件都满足,那么她就可能是IP
IsIP = True
End Function