Get Chinese character string Pinyin first letter C # version

Chinese character | pinyin | string gets the Chinese phonetic initials in the string (modified according to http://blog.csdn.net/iwebsms/archive/2004/09/28/119851.aspx)


Perhaps the code is bloated, hope to have friends to help correct


Returns the first letter of a given string
private string Indexcode (String indextxt)
{
String _temp=null;
for (int i=0;i<indextxt.length;i++)
_temp = _temp + getoneindex (indextxt.substring (i,1));
return _temp;
}


Get the first letter of a single character
private 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)
));
}

}


Get the first letter from the location
Private String GetX (int gbcode)
{
if (Gbcode >= 1601 && Gbcode < 1637) return "A";
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 = "CJWGNSPGCENEGYPBTWXZDXYKYGTPJNMJQMBSGZSCYJSYYFPGGBZGYDYWJKGALJSWKBJQHYJWPDZLSGMR"
+ "YBYWWCCGZNKYDGTTNGJEYEKZYDCJNMCYLQLYPYQBQRPZSLWBDGKJFYXJWCLTBNCXJJJJCXDTQSQZYCDXXHGCKBPHFFSS"
+ "PYBGMXJBBYGLBHLSSMZMPJHSOJNGHDZCDKLGJHSGQZHXQGKEZZWYMCSCJNYETXADZPMDSSMZJJQJYZCJJFWQJBDZBJGD"
+ "Nzcbwhgxhqkmwfbpbqdtjjzkqhylcgxfptyjyyzpsjlfchmqshgmmxsxjpkdcmbbqbefsjwhwwgckpylqbgldlcctnma"
+ "EDDKSJNGKCSGXLHZAYBDBTSDKDYLHGYMYLCXPYCJNDQJWXQXFYYFJLEJBZRWCCQHQCSBZKYMGPLBMCRQCFLNYMYQMSQT"
+ "RBCJTHZTQFRXCHXMCJCJLXQGJMSHZKBSWXEMDLCKFSYDSGLYCJJSSJNQBJCTYHBFTDCYJDGWYGHQFRXWCKQKXEBPDJPX"
+ "JQSRMEBWGJLBJSLYYSMDXLCLQKXLHTJRJJMBJHXHWYWCBHTRXXGLHJHFBMGYKLDYXZPPLGGPMTCBBAJJZYLJTYANJGBJ"
+ "FLQGDZYQCAXBKCLECJSZNSLYZHLXLZCGHBXZHZNYTDSBCJKDLZAYFFYDLABBGQSZKGGLDNDNYSKJSHDLXXBCGHXYGGDJ"
+ "MMZNGMMCCGWZSZXSJBZNMLZDTHCQYDBDLLSCDDNLKJYHJSYCJLKOHQASDHNHCSGAEHDAASHTCPLCPQYBSDMPJLPCJAQL"
+ "CDHJJASPRCHNGJNLHLYYQYHWZPNCCGWWMZFFJQQQQXXACLBHKDJXDGMMYDJXZLLSYGXGKJRYWZWYCLZMCSJZLDBNDCFC"
+ "XYHLSCHYCJQPPQAGMNYXPFRKSSBJLYXYJJGLNSCMHCWWMNZJJLHMHCHSYPPTTXRYCSXBYHCSMXJSXNBWGPXXTAYBGAJC"
+ "XLYPDCCWQOCWKCCSBNHCPDYZNBCYYTYCKSKYBSQKKYTQQXFCWCHCWKELCQBSQYJQCCLMTHSYWHMKTLKJLYCHWHEQJHTJ"
+ "Hppqpqscfymmcmgbmhglgsllysdllljpchmjhwljcyhzjxhdxjlhxrswlwzjcbxmhzqxsdzpmgfcsglsdymjshxpjxom"
+ "YQKNMYBLRTHBCFTPMGYXLCHLHLZYLXGSSSSCCLSLDCLEPBHSHXYYFHBMGDFYCNJQWLQHJJCYWJZTEJJDHFBLQXTQKWHD"
+ "CHQXAGTLXLJXMSLJHDZKZJECXJCJNMBBJCSFYWKBJZGHYSDCPQYRSLJPCLPWXSDWEJBJCBCNAYTMGMBAPCLYQBCLZXCB"
+ "Nmsggfnzjjbzsfqyndxhpcqkzczwalsbccjxpozgwkybsgxfcfcdkhjbstlqfsgdslqwzkxtmhsbgzhjcrglyjbpmljs"
+ "Xlcjqqhzmjczydjwbmjklddpmjegxyhylxhlqyqhkycwcjmyhxnatjhyccxzpcqlbzwwwtwbqcmlbmynjcccxbbsnzzl"
+ "Jpljxyztzlgcldcklyrzzgqtgjhhgjljaxfgfjzslcfdqzlclgjdjcsnclljpjqdcclcjxmyzftsxgcgsbrzxjqqcczh"
+ "Gyjdjqqlzxjyldlbcyamcstylbdjbyregklzdzhldszchznwczcllwjqjjjkdgjcolbbzppglghtgzcygezmycnqcycy"
+ "HBHGXKAMTXYXNBSKYZZGJZLQJDFCJXDYGJQJJPMGWGJJJPKJSBGBMMCJSSCLPQPDXCDYYKYPCJDDYYGYWCHJRTGCNYQL"
+ "Dkljczzgzccjgdyksgpzmdlcphnjafyzdjcnmwescsglbtzcgmsdllyxqsxsbljsbbsgghfjlwpmzjnlyywdqshzxtyy"
+ "WHMCYHYWDBXBTLMSWYYFSBJCBDXXLHJHFPSXZQHFZMQCZTQCXZXRDKDJHNNYZQQFNQDMMGNYDXMJGDHCDYCBFFALLZTD"
+ "LTFKMXQZDNGEQDBDCZJDXBZGSQQDDJCMBKXFFXMKDMCSYCHZCMLJDJYNHPRSJMKMPCKLGDBQTFZSWTFGGLYPLLJZHGJJ"
+ "GYPZLTCSMCNBTJBHFKDHBYZGKPBBYMTDLSXSBNPDKLEYCJNYCDYKZDDHQGSDZSCTARLLTKZLGECLLKJLJJAQNBDGGGHF"
+ "JTZQJSECSHALQFMMGJNLYJBBTMLYCXDCJPLDLPCQDHSYCBZSCKBZMSLJFLHRBJSNBRGJHXPDGDJYBZGDLGCSEZGXLBLG"
+ "YXTWMABCHECMWYJYZLLJJSHLGNDJLSLYGKDZPZXJYYZLPCXSZFGWYYDLYHCLJSCMBJHBLYJLYCBLYDPDQYSXKTBYTDKD"
+ "XJYPCNRJMFDJGKLCCJBCTBJDDBBLBLCDQRPPXJCGLZCSHLTOLJNMDDDLNGKAQAKGJGYHHEZNMSHRPHQQJCHGMFPRXCJG"
+ "DYCHGHLYRZQLCNGJNZSQDKQJYMSZSWLCFQJQXGBGGXMDJWLMCRNFKKFSYYLJBMQAMMMYCCTBSHCPTXXZZSMPHFSHMCLM"
+ "LDJFYQXSDYJDJJZZHQPDSZGLSSJBCKBXYQZJSGPSXJZQZNQTBDKWXJKHHGFLBCSMDLDGDZDBLZKYCQNNCSYBZBFGLZZX"
+ "SWMSCCMQNJQSBDQSJTXXMBLDXCCLZSHZCXRQJGJYLXZFJPHYMZQQYDFQJJLCZNZJCDGZYGCDXMZYSCTLKPHTXHTLBJXJ"
+ "LXSCDQCCBBQJFQZFSLTJBTKQBSXJJLJCHCZDBZJDCZJCCPRNLQCGPFCZLCLCXZDMXMPHGSGZGSZZQJXLWTJPFSYASLCJ"
+ "Btckwcwmytcsjjljcqlwzmalbxyfbpnlschtgjwejjxxglljstgshjqlzfkcgnndszfdeqfhbsaqdgylbxmmygszldyd"
+ "Jmjjrgbjgkgdhgkblgkbdmbylxwcxyttybkmrjjzxqjbhlmhmjjzmqasldcyxyqdlqcafywyxqhz";
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 "";
}