Convert text to PinYin

# Region -- get the first letter of a contact's name (method 1)
Public static string getpystring (string Str)
{
String _ temp = NULL;
For (INT I = 0; I <Str. length; I ++)
_ Temp = _ temp + getoneindex (Str. substring (I, 1 ));
Return _ temp. toupper ();
}

Public static string getpychar (string C)
{
Byte [] array = new byte [2];
Array = system. Text. encoding. Default. getbytes (C );
Int I = (short) (array [0]-'\ 0') * 256 + (short) (array [1]-' \ 0 '));

If (I <0xb0a1) Return "*";
If (I <0xb0c5) Return "";
If (I <0xb2c1) Return "B ";
If (I <0xb4ee) Return "C ";
If (I <0xb6ea) Return "D ";
If (I <0xb7a2) Return "E ";
If (I <0xb8c1) Return "F ";
If (I <0xb9fe) Return "G ";
If (I <0xbbf7) Return "H ";
If (I <0xbfa6) Return "G ";
If (I <0xc0ac) Return "K ";
If (I <0xc2e8) Return "L ";
If (I <0xc4c3) Return "M ";
If (I <0xc5b6) Return "N ";
If (I <0xc5be) Return "O ";
If (I <0xc6da) Return "p ";
If (I <0xc8bb) Return "Q ";
If (I <0xc8f6) Return "R ";
If (I <0 xcbfa) Return "S ";
If (I <0 xcdda) Return "T ";
If (I <0xcef4) Return "W ";
If (I <0xd1b9) Return "X ";
If (I <0xd4d1) Return "Y ";
If (I <0xd7fa) Return "Z ";
Return "*";
}
# Endregion

# Region -- get the first letter of a contact's name (method 2)
/// <Summary>
/// Obtain the first letter of the contact name
/// </Summary>
/// <Param name = "name"> name </param>
/// <Returns> initial name </returns>
Public static string get_name_frist (string name)
{
String _ temp = NULL;
For (INT I = 0; I <name. length; I ++)
_ Temp = _ temp + getoneindex (name. substring (I, 1 ));
Return _ temp. toupper ();
}
// Obtain the first letter of a single character
Private Static string getoneindex (string oneindextxt)
{
If (convert. tochar (oneindextxt)> = 0 & convert. tochar (oneindextxt) <256)
Return oneindextxt;
Else
{
Encoding gb2312 = encoding. getencoding ("gb2312 ");
Byte [] unicodebytes = encoding. Unicode. getbytes (oneindextxt );
Byte [] gb2312bytes = encoding. Convert (encoding. Unicode, gb2312, unicodebytes );
Return getx (convert. toint32 (
String. Format ("{0: D2}", convert. toint16 (gb2312bytes [0])-160)
+ String. Format ("{0: D2}", convert. toint16 (gb2312bytes [1])-160)
));
}
}

// Obtain the first letter Based on the location
Private Static string getx (INT gbcode)
{
If (gbcode> = 1601 & gbcode <1637) Return "";
If (gbcode> = 1637 & gbcode <1833) Return "B ";
If (gbcode> = 1833 & gbcode <2078) Return "C ";
If (gbcode> = 2078 & gbcode <2274) Return "D ";
If (gbcode> = 2274 & gbcode <2302) Return "E ";
If (gbcode> = 2302 & gbcode <2433) Return "F ";
If (gbcode> = 2433 & gbcode <2594) Return "G ";
If (gbcode> = 2594 & gbcode <2787) Return "H ";
If (gbcode> = 2787 & gbcode <3106) Return "J ";
If (gbcode> = 3106 & gbcode <3212) Return "K ";
If (gbcode> = 3212 & gbcode <3472) Return "L ";
If (gbcode> = 3472 & gbcode <3635) Return "M ";
If (gbcode> = 3635 & gbcode <3722) Return "N ";
If (gbcode> = 3722 & gbcode <3730) Return "O ";
If (gbcode> = 3730 & gbcode <3858) Return "p ";
If (gbcode> = 3858 & gbcode <4027) Return "Q ";
If (gbcode> = 4027 & gbcode <4086) Return "R ";
If (gbcode> = 4086 & gbcode <4390) Return "S ";
If (gbcode> = 4390 & gbcode <4558) Return "T ";
If (gbcode> = 4558 & gbcode <4684) Return "W ";
If (gbcode> = 4684 & gbcode <4925) Return "X ";
If (gbcode> = 4925 & gbcode <5249) Return "Y ";
If (gbcode> = 5249 & gbcode <= 5589) Return "Z ";
If (gbcode> = 5601 & gbcode <= 8794)
{
String codedata = "success"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Alarm"
+ "Success ";
String _ gbcode = gbcode. tostring ();
Int Pos = (convert. toint16 (_ gbcode. substring (0, 2)-56) * 94 + convert. toint16 (_ gbcode. substring (_ gbcode. length-2, 2 ));
Return codedata. substring (POS-1, 1 );
}
Return "";
}

Convert text to PinYin