读取和存储文本文件，UTF-8和GB2312通用的函数

'-------------------------------------------------
'函数名称:ReadTextFile
'作用:利用AdoDb.Stream对象来读取UTF-8格式的文本文件
'----------------------------------------------------
Function ReadFromTextFile (FileUrl,CharSet)
    dim str
    set stm=server.CreateObject("adodb.stream")
     stm.Type=2 '以本模式读取
     stm.mode=3 
     stm.charset=CharSet
     stm.open
     stm.loadfromfile server.MapPath(FileUrl)
     str=stm.readtext
     stm.Close
    set stm=nothing  本文来自www.iisboy.com
     ReadFromTextFile=str
End Function
'-------------------------------------------------
'函数名称:WriteToTextFile
'作用:利用AdoDb.Stream对象来写入UTF-8格式的文本文件
'----------------------------------------------------
Sub WriteToTextFile (FileUrl,byval Str,CharSet) 
    set stm=server.CreateObject("adodb.stream")
     stm.Type=2 '以本模式读取
     stm.mode=3
     stm.charset=CharSet
     stm.open
     stm.WriteText str
     stm.SaveToFile server.MapPath(FileUrl),2 
     stm.flush
     stm.Close
    set stm=nothing
End Sub

'使用方法

call WriteToTextFile ("../index.html","aaa","UTF-8")'保存为UTF-8

call WriteToTextFile ("../index.html","aaa","GB2312")'保存为GB2312