利用WebClient抓取网页数据

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　　一、gb2312方式获取网页源码

public string getGB2312HTML(string url)

            {
                string str;
                using (System.Net.WebClient client = new System.Net.WebClient())
                {
                    using (System.IO.Stream stream = client.OpenRead(url))
                    {
                        using (System.IO.StreamReader reader = new System.IO.StreamReader(stream, System.Text.Encoding.GetEncoding("gb2312")))
                        {
                            str = reader.ReadToEnd();
                            reader.Close();
                        }
                        stream.Close();
                    }
                }
                return str;
            }

二、UTF-8方式获取网页源码

public string getUTF8HTML(string url)

            {
                string str;
                using (System.Net.WebClient client = new System.Net.WebClient())
                {
                    using (System.IO.Stream stream = client.OpenRead(url))
                    {
                        using (System.IO.StreamReader reader = new System.IO.StreamReader(stream, System.Text.Encoding.GetEncoding("UTF-8")))
                        {
                            str = reader.ReadToEnd();
                            reader.Close();
                        }
                        stream.Close();
                    }
                }
                return str;

}

该杂文来自：网站开发杂文

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