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//»ñµÃºº×ÖµÄÇøÎ»Âë
¡¡¡¡byte[] array = new byte[2];
¡¡¡¡array = System.Text.Encoding.Default.GetBytes("°¡");
int i1 = (short)(array[0] - ''\0'');
¡¡¡¡int i2 = (short)(array[1] - ''\0'');
//unicode½âÂ뷽ʽϵĺº×ÖÂë
¡¡¡¡array = System.Text.Encoding.Unicode.GetBytes("°¡");
¡¡¡¡i1 = (short)(array[0] - ''\0'');
¡¡¡¡i2 = (short)(array[1] - ''\0'');
//unicode·´½âÂëΪºº×Ö
¡¡¡¡string str = "4a55";
¡¡¡¡string s1 = str.Substring(0,2);
¡¡¡¡string s2 = str.Substring(2,2);
int t1 = Convert.ToInt32(s1,16);
¡¡¡¡int t2 = Convert.ToInt32(s2,16);
array[0] = (byte)t1;
¡¡¡¡array[1] = (byte)t2;
string s = System.Text.Encoding.Unicode.GetString(array);
//default·½Ê½·´½âÂëΪºº×Ö
¡¡¡¡array[0] = (byte)196;
¡¡¡¡array[1] = (byte)207;
¡¡¡¡s = System.Text.Encoding.Default.GetString(array);
//È¡×Ö·û´®³¤¶È
¡¡¡¡s = "iam·½Ç¹Ç¹";
¡¡¡¡int len = s.Length;//will output as 6
¡¡¡¡byte[] sarr = System.Text.Encoding.Default.GetBytes(s);
¡¡¡¡len = sarr.Length;//will output as 3+3*2=9
//×Ö·û´®Ïà¼Ó
¡¡¡¡System.Text.StringBuilder sb = new System.Text.StringBuilder("");
¡¡¡¡sb.Append("i ");
¡¡¡¡sb.Append("am ");
¡¡¡¡sb.Append("·½Ç¹Ç¹");
/////////////////////////////////////////////////////////////////////
string --> byte array
byte[] data=Syste.Text.Encoding.ASCII.GetBytes(string);
string --> byte
byte data = Convert.ToByte(string);
byte[]-->string
string string = Encoding.ASCII.GetString( bytes, 0, nBytesSize );
 
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//oStrÊÇUrlEncode±àÂë×Ö·û´®
Encoding gb2312 = Encoding.GetEncoding("gb2312"); 


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