Some common string processing in C #

String

1. String encoding Conversion

This method converts a gb2312 encoded string into a latin1 (ISO8859-1) encoded string
private string Convertstring (String srcstring)
{
Return System.Text.Encoding.GetEncoding ("Iso8859-1"). GetString (System.Text.Encoding.GetEncoding ("gb2312"). GetBytes (srcstring));
}
2. Dividing a string into an array of strings

String stringvalue = "1,2,3,4,5,6,7,8,9,10";
string[] Stringarry = Stringvalue.split (', ');
3. Inserts the specified character at the specified position of the string

String a = "abc.gif";
String B = A.inert (A.lastindexof ('. '), "_");
The result of B is: Abc_.gif
4, the interception file name extension

String fileName = "Abcdefg123456.jpg";
string result = Filename.substring (Filename.lastindexof (".") +1);
result is jpg