下载前1000个字节

本文介绍了下载前1000个字节的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我需要使用C＃从互联网上下载的文本文件。该文件的大小是相当大的，我需要的信息总是第一个1000字节之内。这可能吗？

I need to download a text file from the internet using C#. The file size can be quite large and the information I need is always within the first 1000 bytes. Is this possible?

推荐答案

偷走here.

Stolen from here.

string GetWebPageContent(string url) { string result = string.Empty; HttpWebRequest request; const int bytesToGet = 1000; request = WebRequest.Create(url) as HttpWebRequest; //get first 1000 bytes request.AddRange(0, bytesToGet - 1); // the following code is alternative, you may implement the function after your needs using (WebResponse response = request.GetResponse()) { using (Stream stream = response.GetResponseStream()) { byte[] buffer = new byte[1024]; int read = stream.Read(buffer, 0, 1000); Array.Resize(ref buffer, read); return Encoding.ASCII.GetString(buffer); } } }

（编辑整理的要求，在评论...;））

(Edited as requested in the comments... ;) )