c# 获取网页中指定字符串的代码一例
本文导语: 代码如下： 代码示例: private void button2_Click(object sender, EventArgs e) { // Create a request for the URL. WebRequest request = WebRequest.Create("http://www./"); // If required by the server, set the credentials. request.Credentials = CredentialCache.DefaultCredentials; //...
代码如下：
private void button2_Click(object sender, EventArgs e)
{
// Create a request for the URL.
WebRequest request = WebRequest.Create("http://www./");
// If required by the server, set the credentials.
request.Credentials = CredentialCache.DefaultCredentials;
// Get the response.
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
// Display the status.
MessageBox.Show(response.StatusDescription);
Console.WriteLine(response.StatusDescription);
// Get the stream containing content returned by the server.
Stream dataStream = response.GetResponseStream();
// Open the stream using a StreamReader for easy access.
StreamReader reader = new StreamReader(dataStream, Encoding.Default);
// Read the content.
string responseFromServer = reader.ReadToEnd();
//截取数据
int i = responseFromServer.IndexOf("京");
string dataBid = responseFromServer.Substring(i, 12);
// Display the content.
MessageBox.Show(dataBid);
Console.WriteLine(responseFromServer);
// Cleanup the streams and the response.
reader.Close();
dataStream.Close();
response.Close();
}
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