Encoding Encoding = encoding.getencoding ("gb2312"); With byte[] ping = Encoding.UTF8.GetBytes (inputstring);

Encoding Encoding = encoding.getencoding ("gb2312"); With byte[] ping = Encoding.UTF8.GetBytes (inputstring);

public static string SubString (string inputstring, int length)
{
byte[] Ping = Encoding.UTF8.GetBytes (inputstring);
int Count=encoding.utf8.getbytecount (inputstring);
if (count <= length * 2)
{
return inputstring;
}
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;
}
TempString + = Inputstring.substring (i, 1);
if (templen >= length * 2)
Break
}
return tempstring;
}

 public static string Getsub (string sub, int length)         {  & nbsp;         if (sub = = null) return string. Empty;             int len = length * 2;            //aequilatelength for the Chinese and English width length, Cutlength is the length of the string to intercept             int aequilatelength = 0, cutlength = 0;             Encoding Encoding = encoding.getencoding (" gb2312 ");

            string cutstr = Sub. ToString ();             int strlength = cutstr.length;             byte[] bytes;             for (int i = 0; i < strlength; i++)   & nbsp;         {                 bytes = Encoding. GetBytes (Cutstr.substring (i, 1));                 if (bytes. Length = = 2)//not English                      Aequilatelength + = 2;                 Else                      aequilatelength++;

if (aequilatelength <= len) cutlength + = 1;

if (Aequilatelength > Len) return cutstr.substring (0, cutlength);//+ "..."}         return cutstr; }

Encoding Encoding = encoding.getencoding ("gb2312"); With byte[] ping = Encoding.UTF8.GetBytes (inputstring);