通常在显示新闻标题的时候，有时候标题中会出现汉字和英文共存，直接用left截字符串会出现两条新闻标题长度不一，使用这个函数可以解决这个问题。<%'**************************************************'函数名：gotTopic'作 用：截字符串，汉字一个算两个字符，英文算一个字符'参 数：str ----原字符串' strlen ----截取长度'返回值：截取后的字符串'**************************************************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%><% <% str="一共11111w有汉字" str1="一共有五汉字" response.write "gotTopic<br>" response.write gotTopic(str,10)&"<br>"&gotTopic(str1,10)&"<br>" response.write "left<br>" response.write Left(str,5)&"<br>"&Left(str1,5) response.end%>%>
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