大文件的处理


		大文件的处理
let rec transforAsync (streamIn:Stream) (streamOut:Stream) buffer = async{
  let! lengthRead = streamIn.AsyncRead(buffer, 0, buffer.Length)
  if (lengthRead >0) then
    do! streamOut.AsyncWrite(buffer, 0, lengthRead)
    do! transforAsync streamIn streamOut buffer
}
let postHttpCookieAsync (url : string) (postData :string) (cookie : CookieContainer byref)=
    let data = Encoding.UTF8.GetBytes(postData)
    let req = WebRequest.Create( url ) :?> HttpWebRequest
    req.Timeout <- 6000000
    req.CookieContainer <- cookie
    req.Method <- "POST" www.zzzyk.com
    req.ContentType <- "application/x-www-form-urlencoded"
    req.AllowAutoRedirect <- true
    req.KeepAlive <- true
    req.ServicePoint.ConnectionLimit <- 10
    use ss = req.GetRequestStream()
    ss.Write(data,0,data.Length)
    async{
        let! resp = req.AsyncGetResponse()
        use streamIn = resp.GetResponseStream()
        use streamOut = File.Create(t1, 1024*100, FileOptions.Asynchronous)
        let buffer = Array.zeroCreate(1024*10)
        do! transforAsync streamIn streamOut buffer 
    }

补充：综合编程 , 其他综合 ,