A useful string interception function (a Chinese character counts as two characters, and an English character counts as one character)

'****************************************** ***********
'Function name: gotTopic
'Function: truncate the string, one Chinese character counts as two characters, and one English character counts as one character
'Parameter: str ----Original string
' strlen ---- intercept length
'Return value: intercepted string
'********************************** *******************
Function gotTopic(ByVal str, ByVal strlen)
If str = "" Then
gotTopic = ""
Exit Function
End If
Dim l , t, c, i, strTemp
str = Replace(Replace(Replace(Replace(str, " ", " "), """, Chr(34)), ">", ">"), " <", "<")
l = Len(str)
t = 0
strTemp = str
strlen = CLng(strlen)
For i = 1 To l
c = Abs(Asc(Mid(str, i , 1)))
If c > 255 Then
t = t + 2
Else
t = t + 1
End If
If t >= strlen Then
strTemp = Left(str, i)
Exit For
 End If
Next
If strTemp <> str Then
strTemp = strTemp & "…"
End If
gotTopic = Replace(Replace(Replace(Replace(strTemp, " ", " "), Chr(34), " ""), ">", ">"), "<", "<")
End Function
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