Example 1
| The code is as follows |
Copy Code |
| private void Button2_Click (object sender, EventArgs e)
{
//Create a request for the URL.
WebRequest request = WebRequest.Create ("http://www.111cn.net/");
//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); The
//get the stream containing content returned by the server.
Stream DataStream = response. GetResponseStream (); The
//Open the stream using a StreamReader for easy access.
StreamReader reader = new StreamReader (DataStream, Encoding.default);
//Read the content.
String responsefromserver = reader. ReadToEnd ();
//intercepting data
int i = responsefromserver.indexof ("Beijing");
String databid = responsefromserver.substring (i); Display the content.
MessageBox.Show (Databid);
Console.WriteLine (Responsefromserver);
Cleanup the streams and the response.
Reader. Close ();
Datastream.close ();
Response. Close ();
} |
C # Obtains a text in the middle of a specified start and end string with a regular expression
| The code is as follows |
Copy Code |
| <summary>
Gets the median value of the start and end strings in a string
</summary>
<param name= "str" ></param>
<param name= "S" > Start </param>
<param name= "E" > End </param>
<returns></returns>
public static string GetValue (String str, string s, String e)
{
Regex RG = new Regex (? <= ("+ S +")) [. \s\s]*? = ("+ E +")) ", Regexoptions.multiline | Regexoptions.singleline);
Return RG. Match (str). Value;
}
<summary>
Intercepting string too much + ...
</summary>
<param name= "InputString" > String </param>
<param name= "len" > Length </param>
<returns>string</returns>
public static string Cutstring (string inputstring, int len)
{
ASCIIEncoding ASCII = new ASCIIEncoding ();
int templen = 0;
String tempstring = "";
Byte[] s = ASCII. GetBytes (inputstring);
for (int i = 0; i < s.length; i++)
{
if ((int) s[i] = = 63)
{
Templen + 2;
}
Else
{
Templen + 1;
} try
{
TempString + + inputstring.substring (i, 1);
}
Catch
{
Break
} if (Templen > Len)
Break
}
If it's truncated, add half an ellipsis.
byte[] MyByte = System.Text.Encoding.Default.GetBytes (inputstring);
if (MyByte. Length > Len)
TempString + = "..."; return tempstring;
}
|
Call method
| code is as follows |
copy code |
| String Get string = "01-blue";
String Get after = Get string. Substring (0, get string. IndexOf ("-")); The
gets the data that is: blue string get after = getting string. Substring (Get string. IndexOf ("-"), get string. Length-get string. IndexOf ("-")); |
