xmlhttp 抓取网页内容2

抓取网页。偶要实现实实更新天气预报。利用了XMLHTTP组件，抓取网页的指定部分。 需要分件html源代码 此例中的被抓取的html源代码如下 p align=left2004年8月24日星期二；白天：晴有时多云南风34级；夜间：晴南风34级；气温：最高29℃最低19℃ /p 而程序中是

2004年8月24日星期二；白天：晴有时多云南风3—4级；夜间：晴南风3—4级；气温：最高29℃最低19℃

Function GetBody(url)
        on error resume next
        Set Retrieval = CreateObject("Microsoft.XMLHTTP")
        With Retrieval
        .Open "Get", url, False, "", ""
        .Send
        GetBody = .ResponseBody
        End With
        Set Retrieval = Nothing
End Function

Function BytesToBstr(body,Cset)
        dim objstream
        set objstream = Server.CreateObject("adodb.stream")
        objstream.Type = 1
        objstream.Mode =3
        objstream.Open
        objstream.Write body
        objstream.Position = 0
        objstream.Type = 2
        objstream.Charset = Cset
        BytesToBstr = objstream.ReadText
        objstream.Close
        set objstream = nothing
End Function
Function Newstring(wstr,strng)
        Newstring=Instr(lcase(wstr),lcase(strng))
        if NewstringEnd Function
%>

Dim wstr,str,url,start,over,dtime
dtime=Year(Date)&"年"&Month(Date)&"月"&Day(Date)&"日"
url="http://www.qianhuaweb.com/"
        wstr=getHTTPPage(url)
        start=Newstring(wstr,dtime)
        over=Newstring(wstr,"

response.write ""&body&""

%>