获得汉字字符串拼音首字母 C#版

获取字符串中的汉字拼音首字母（根据http://blog.csdn.net/iwebsms/archive/2004/09/28/119851.aspx修改）

可能代码比较臃肿，希望有朋友再帮忙改正

//返回给定字符串的首字母

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;

}

//得到单个字符的首字母

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)

));

}

}

//根据区位得到首字母

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 " ";

}