[导入]ASP常用函数:IsAlpha()

<%
'功能:返回 Boolean 值指明表达式的值是否为字母。
'来源:http://jorkin.reallydo.com/article.asp?id=525

Private Function IsAlpha(byVal sString)
    Dim regExp, oMatch, i, sStr
    For i = 1 To Len( sString )
        sStr = Mid(sString, i, 1)
        Set regExp = New RegExp
        regExp.Global = True
        regExp.IgnoreCase = True
        regExp.Pattern = "[A-Z]|[a-z]|\s|[_]"
        Set oMatch = regExp.Execute(sStr)
        If oMatch.Count = 0 Then
            IsAlpha = False
            Exit Function
        End If
        Set regExp = Nothing
    Next
    IsAlpha = True
End Function
%>

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