ASP按照字数限制自动截取标题内容
来源：互联网 责任编辑：栏目编辑 发表时间:2013-07-02 06:24 点击:次
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 " response.write gotTopic(str,10)&" "&gotTopic(str1,10)&" " response.write "left " response.write Left(str,5)&" "&Left(str1,5) response.end %> |
