获取目标网页的内容

 1             HttpWebRequest request = WebRequest.Create("http://www.baidu.com/") as HttpWebRequest;

 2             HttpWebResponse response = request.GetResponse() as HttpWebResponse;

 3 

 4             if (response.StatusCode == HttpStatusCode.OK)

 5             {

 6                 string characterSet = response.CharacterSet;

 7                 Encoding encode;

 8                 if (characterSet != "")

 9                 {

10                     encode = Encoding.GetEncoding(characterSet);

11                 }

12                 else

13                 {

14                     encode = Encoding.Default;

15                 }

16 

17                 Stream receiveStream = response.GetResponseStream();

18                 StreamReader reader = new StreamReader(receiveStream, encode);

19                 char[] read = new char[255];

20                 // 每次读取255

21                 int count = reader.Read(read, 0, 255);

22                 string str = string.Empty;

23                 while (count > 0)

24                 { // 如果读到一定数目的字符串后，将这些字符串输入到string中

25                     str += new String(read, 0, count);

26                     count = reader.Read(read, 0, 255); // 再读下面的255内容

27                 }

28                 webBrowser1.DocumentText = str;

29 

30                 // 读取完毕

31                 reader.Close();

32                 receiveStream.Close();