Private Sub Command1_Click()
Dim strTemp As String
strTemp = "aslkdjalksj32334j23j"
Dim i As Integer
For i = 1 To Len(strTemp)
If IsCommonChar(Mid(strTemp, i, 1)) = False Then
MsgBox "有非字母或数字的字符"
Exit Sub
End If
Next
MsgBox "没有非字母或数字的字符"
strTemp = "aslkdja@¥#!¥lksj32334j23j"
For i = 1 To Len(strTemp)
If IsCommonChar(Mid(strTemp, i, 1)) = False Then
MsgBox "有非字母或数字的字符"
Exit Sub
End If
Next
MsgBox "没有非字母或数字的字符"
End Sub
Private Function IsCommonChar(strChar As String) As Boolean
If (Asc(strChar) >= 48 And Asc(strChar) <= 57) _
Or (Asc(strChar) >= 65 And Asc(strChar) <= 90) _
Or (Asc(strChar) >= 97 And Asc(strChar) <= 122) Then
IsCommonChar = True
Else
IsCommonChar = False
End If
End Function
以上代码可以判断是否有非字母和数字,如果有,我想得到那些非字母数字的字符,怎么个写法?刚接触VB,大家救救我啊!!
Dim strTemp As String
strTemp = "aslkdjalksj32334j23j"
Dim i As Integer
For i = 1 To Len(strTemp)
If IsCommonChar(Mid(strTemp, i, 1)) = False Then
MsgBox "有非字母或数字的字符"
Exit Sub
End If
Next
MsgBox "没有非字母或数字的字符"
strTemp = "aslkdja@¥#!¥lksj32334j23j"
For i = 1 To Len(strTemp)
If IsCommonChar(Mid(strTemp, i, 1)) = False Then
MsgBox "有非字母或数字的字符"
Exit Sub
End If
Next
MsgBox "没有非字母或数字的字符"
End Sub
Private Function IsCommonChar(strChar As String) As Boolean
If (Asc(strChar) >= 48 And Asc(strChar) <= 57) _
Or (Asc(strChar) >= 65 And Asc(strChar) <= 90) _
Or (Asc(strChar) >= 97 And Asc(strChar) <= 122) Then
IsCommonChar = True
Else
IsCommonChar = False
End If
End Function
以上代码可以判断是否有非字母和数字,如果有,我想得到那些非字母数字的字符,怎么个写法?刚接触VB,大家救救我啊!!
midstr=Mid(strTemp, i, 1)
If IsCommonChar(midstr) = False Then
outstr=outstr & midstr
End If
Nextoutstr里面就是你想要的东西了.
midstr=Mid(strTemp, i, 1)
If IsCommonChar(midstr) = False Then
outstr=outstr & midstr
End If
Next