ASP获取字符串长度的自定义函数

Function GetStrLen(str)
If IsNull(str) Or str = "" Then
getStrLen = 0
Else
Dim i, n, k, chrA
k = 0
n = Len(str)
For i = 1 To n
chrA = Mid(str, i, 1)
If Asc(chrA) >= 0 And Asc(chrA) <= 255 Then
k = k + 1
Else
k = k + 2
End If
Next
getStrLen = k
End If
End Function

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