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覆巢之下焉有完卵。出来道上混,迟早是要还的。

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asp函数,显示新闻标题时正确处理中英文计数问题

2011-09-24 20:40:44| 分类： asp | 标签： |举报 |字号大中小订阅

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' ============================================
'从左边载止字节
'Response.Write leftStr("截止字串截止字串截止字串")
'leftStr("字串",5) 有点
'返回:截止字串…
' ============================================
Function leftStr(Str, Strlen)
        Dim l, t, c, m_i
        l = Len(Str)
        t = 0
        For m_i = 1 To l
            c = Abs(Asc(Mid(Str, m_i, 1)))
            If c > 255 Then
                t = t + 2
            Else
                t = t + 1
            End If

            If t >= Strlen Then
                leftStr = Left(Str, m_i) & "…"
                Exit For
            Else
                leftStr = Str
            End If
        Next
End Function
' ============================================
'Rem leftStr("字串",5) 无点
'Rem Response.Write leftStr2("截止字串截止字串截止字串")
'Rem 返回:截止字串
'Public
' ============================================
Function leftStr2(Str, Strlen)
        Dim l, t, c, m_i
        l = Len(Str)
        t = 0
        For m_i = 1 To l
            c = Abs(Asc(Mid(Str, m_i, 1)))
            If c > 255 Then
                t = t + 2
            Else
                t = t + 1
            End If

            If t >= Strlen Then
                leftStr2 = Left(Str, m_i)
                Exit For
            Else
                leftStr2 = Str
            End If
        Next
End Function

<%=LeftStr(rs("title"),48)%>

不合理的处理，用的是自身的left()

合理的处理，用的是开始的自定义函数

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              blogAbstract:'<P\><WBR\></P\>  <P\> </P\>  <P\> </P\>  <P\> </P\>  <P\>\' ============================================<BR\>\'从左边载止字节<BR\>\'Response.Write leftStr(\"截止字串截止字串截止字串\")<BR\>\'leftStr(\"字串\",5) 有点<BR\>\'返回:截止字串…<BR\>\' ============================================<BR\>Function leftStr(Str, Strlen)<BR\>        Dim l, t, c, m_i<BR\>        l = Len(Str)</P\>',
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<#-- 网易新闻广告 --> <#--右边模块结构--> <#--评论模块结构--> <#--引用模块结构--> <#--博主发起的投票-->

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