C # code for converting Chinese characters into pinyin

This Code uses C # To convert Chinese characters into Pinyin and develop web pages. The specific implementation is as follows:
Public partial class WebForm1: System. Web. UI. Page
{
Private Static int [] pyvalue = new int [] {-20319,-20317,-20304,-20295,-20292,-20283,-20265,-20257, -20230,-20051,-20036,-20032,-20026,-20002,-19990,-19986,-19982,-19976,-19805,-19784,-19775, -19774,-19763,-19756,-19751,-19746,-19741,-19739,-19728,-19725,-19715,-19540,-19531,-19525, -19515,-19500,-19484,-19479,-19467,-19289,-19288,-19281,-19275,-19270,-19263,-19261,-19249, -19243,-19242,-19238,-19235,-19227,-19224,-19218,-19212,-19038,-19023,-19018,-19006,-19003, -18996,-18977,-18961,-18952,-18783,-18774,-18773,-18763,-18756,-18741,-18735,-18731,-18722, -18710,-18697,-18696,-18526,-18518,-18501,-18490,-18478,-18463,-18448,-18447,-18446,-18239, -18237,-18231,-18220,-18211,-18201,-18184,-18183,-18181,-18012,-17997,-17988,-17970,-17964, -17961,-17950,-17947,-17931,-17928,-17922,-17759,-17752,-17733,-17730,
-17721,-17703,-17701,-17697,-17692,-17683,-17676,-17496,-17487,-17482,-17468,-17454,-17433, -17427,-17417,-17202,
-17185,-16983,-16970,-16942,-16915,-16733,-16708,-16706,-16689,-16664,-16657,-16647,-16474, -16470,-16465,-16459,
-16452,-16448,-16433,-16429,-16427,-16423,-16419,-16412,-16407,-16403,-16401,-16393,-16220, -16216,-16212,-16205,
-16202,-16187,-16180,-16171,-16169,-16158,-16155,-15959,-15958,-15944,-15933,-15920,-15915, -15903,-15889,-15878,
-15707,-15701,-15681,-15667,-15661,-15659,-15652,-15640,-15631,-15625,-15454,-15448,-15436, -15435,-15419,-15416,
-15408,-15394,-15385,-15377,-15375,-15369,-15363,-15362,-15183,-15180,-15165,-15158,-15153, -15150,-15149,-15144,
-15143,-15141,-15140,-15139,-15128,-15121,-15119,-15117,-15110,-15109,-14941,-14937,-14933, -14930,-14929,-14928,
-14926,-14922,-14921,-14914,-14908,-14902,-14894,-14889,-14882,-14873,-14871,-14857,-14678, -14674,-14670,-14668,
-14663,-14654,-14645,-14630,-14594,-14429,-14407,-14399,-14384,-14379,-14368,-14355,-14353, -14345,-14170,-14159,
-14151,-14149,-14145,-14140,-14137,-14135,-14125,-14123,-14122,-14112,-14109,-14099,-14097, -14094,-14092,-14090,
-14087,-14083,-13917,-13914,-13910,-13907,-13906,-13905,-13896,-13894,-13878,-13870,-13859, -13847,-13831,-13658,
-13611,-13601,-13406,-13404,-13400,-13398,-13395,-13391,-13387,-13383,-13367,-13359,-13356, -13343,-13340,-13329,
-13326,-13318,-13147,-13138,-13120,-13107,-13096,-13095,-13091,-13076,-13068,-13063,-13060, -12888,-12875,-12871,
-12860,-12858,-12852,-12849,-12838,-12831,-12829,-12812,-12802,-12607,-12597,-12594,-12585, -12556,-12359,-12346,
-12320,-12300,-12120,-12099,-12089,-12074,-12067,-12058,-12039,-11867,-11861,-11847,-11831, -11798,-11781,-11604,
-11589,-11536,-11358,-11340,-11339,-11324,-11303,-11097,-11077,-11067,-11055,-11052,-11045, -11041,-11038,-11024,
-11020,-11019,-11018,-11014,-10838,-10832,-10815,-10800,-10790,-10780,-10764,-10587,-10544, -10533,-10519,-10331,
-10329,-10328,-10322,-10315,-10309,-10307,-10296,-10281,-10274,-10270,-10262,-10260,-10256, -10254 };
Private Static string [] pystr = new string [] {"A", "AI", "an", "Ang", "Ao", "ba", "bai ", "ban", "bang", "Bao", "Bei", "Ben", "Beng", "bi", "Bian", "Biao ",
"Bie", "bin", "bing", "bo", "bu", "ca", "cai", "can", "cang", "cao ", "ce", "ceng", "cha", "chai", "chan", "chang", "chao", "che", "chen ",
"Cheng", "chi", "chong", "chou", "chu", "chuai", "chuan", "chuang", "chui", "chun ", "chuo", "ci", "cong", "cou", "cu", "cuan", "cui ",
"Cun", "cuo", "da", "dai", "dan", "dang", "dao", "de", "deng", "di ", "dian", "diao", "die", "ding", "diu", "dong", "dou", "du", "duan ",
"Dui", "dun", "duo", "e", "en", "er", "fa", "fan", "fang", "fei ", "fen", "feng", "fo", "fou", "fu", "ga", "gai", "gan", "gang", "gao ",
"Ge", "gei", "gen", "geng", "gong", "gou", "gu", "gua", "guai", "guan ", "guang", "gui", "gun", "guo", "ha", "hai", "han", "hang ",
"Hao", "he", "hei", "hu", "heng", "hong", "hou", "hu", "hua", "huai ", "huan", "huang", "hui", "hun", "huo", "ji", "jia", "jian ",
"Jiang", "jiao", "jie", "jin", "jing", "jiong", "jiu", "ju", "juan", "jue ", "jun", "ka", "kai", "kan", "kang", "kao", "ke", "ken ",
"Keng", "kong", "kou", "ku", "kua", "kuai", "kuan", "kuang", "kui", "kun ", "kuo", "la", "lai", "lan", "lang", "lao", "le", "lei ",
"Leng", "li", "lia", "lian", "liang", "liao", "lie", "lin", "ling", "liu ", "long", "lou", "lu", "lv", "luan", "lue", "lun", "luo ",
"Ma", "mai", "man", "mang", "mao", "me", "mei", "men", "meng", "mi ", "mian", "miao", "mie", "min", "ming", "miu", "mo", "mou", "mu ",
"Na", "nai", "nan", "nang", "nao", "ne", "nei", "nen", "neng", "ni ", "nian", "niang", "niao", "nie", "nin", "ning", "niu", "nong ",
"Nu", "nv", "nuan", "nue", "nuo", "o", "ou", "pa", "pai", "pan ", "pang", "pao", "pei", "pen", "peng", "pi", "pian", "piao", "pie ",
"Pin", "ping", "po", "pu", "qi", "qia", "qian", "qiang", "qiao", "qie ", "qin", "qing", "qiong", "qiu", "qu", "quan", "que", "qun ",
"Ran", "rang", "rao", "re", "ren", "reng", "ri", "rong", "rou", "ru ", "ruan", "rui", "run", "ruo", "sa", "sai", "san", "sang ",
"Sao", "se", "sen", "seng", "sha", "shai", "shan", "shang", "shao", "she ", "shen", "sheng", "shi", "shou", "shu", "shua ",
"Shuai", "shuan", "shuang", "shui", "shun", "shuo", "si", "song", "sou", "su ", "suan", "sui", "sun", "suo", "ta", "tai ",
"Tan", "tang", "tao", "te", "teng", "ti", "tian", "tiao", "tie", "ting ", "tong", "tou", "tu", "tuan", "tui", "tun", "tuo ",
"Wa", "wai", "wan", "wang", "wei", "wen", "weng", "wo", "wu", "xi ", "xia", "xian", "xiang", "xiao", "xie", "xin", "xing ",
"Xiong", "xiu", "xu", "xuan", "xue", "xun", "ya", "yan", "yang", "yao ", "ye", "yi", "yin", "ying", "yo", "yong", "you ",
"Yu", "yuan", "yue", "yun", "za", "zai", "zan", "zang", "zao", "ze ", "zei", "zen", "zeng", "zha", "zhai", "zhan", "zhang ",
"Zhao", "zhe", "zhen", "zheng", "zhi", "zhong", "zhou", "zhu", "zhua", "zhuai ", "zhuan", "zhuang", "zhui", "zhun", "zhuo ",
"Zi", "zong", "zou", "zu", "zuan", "zui", "zun", "zuo "};

Public static string convert (string chrstr)
{
Byte [] array = new byte [2];
String returnstr = "";
Int chrasc = 0;
Int i1 = 0;
Int i2 = 0;
Char [] nowchar = chrstr. ToCharArray ();
For (int j = 0; j <nowchar. Length; j ++)
{
Array = System. Text. Encoding. Default. GetBytes (nowchar [j]. ToString ());
I1 = (short) (array [0]);
I2 = (short) (array [1]);
Chrasc = i1 * 256 + i2-65536;
If (chrasc> 0 & chrasc <160)
{
Returnstr + = nowchar [j];
}
Else
{
For (int I = (pyvalue. Length-1); I> = 0; I --)
{
If (pyvalue [I] <= chrasc)
{
Returnstr + = pystr [I];
Break;
}
}
}
}
Return returnstr;
}
Protected void Page_Load (object sender, EventArgs e)
{
Response. Write (convert ("People's Republic of China "));
}
}
}