asp下用fso和ado.stream写xml文件的方法

　　asp按关键字查询XML的问题
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读取文件 ReadTxtFile(FileName)
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Function ReadTxtFile(FileName)
Dim fso,f1,ts,FilePath
FilePath=server.mappath(FileName)
Set fso = CreateObject(Scripting.FileSystemObject)
Set ts = fso.OpenTextFile(FilePath,1,1)
ReadTxtFile = ts.ReadAll
set ts=nothing
set fso=nothing
End Function
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把信息写入文件
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Function WriteTxtFile(Text,FileName)
path=Server.MapPath(FileName)
Set fso = CreateObject(Scripting.FileSystemObject)
Set f1 = fso.CreateTextFile(path,true)
f1.Write (Text)
f1.Close
End Function
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生成xml文件
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msg = <?xml version=1.0 encoding=utf-8?>
msg=msg & <bcaster>
msg=msg & <item item_url=//脚本之家/>
msg=msg & </bcaster>
call WriteTxtFile(msg,x1.xml)


fso默认是ascII编码的，因为必须使用utf-8编码，用ado.stream来写这个文件，代码如下：
Sub CreateFile(Text,FileName)
Dim st
Set st=Server.CreateObject(ADODB.Stream)
st.Type=2
st.Mode=3
st.Charset=utf-8
st.Open()
st.WriteText Text
st.SaveToFile Server.MapPath(FileName),2
st.Close()
Set st=Nothing
End Sub
msg = <?xml version=1.0 encoding=utf-8?>
msg=msg & <bcaster>
msg=msg & <item item_url=//脚本之家/>
msg=msg & </bcaster>
call CreateFile(msg,x1.xml)