汉字获取首字母拼音

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//获取字典
        private Dictionary<string, string> LoadPinYin(HttpContext context)
        {
            string link = context.Request.QueryString["link"];
            Dictionary<string, string> dic = new Dictionary<string, string>();
            DataTable dt = GetData();//获取数据库数据
            foreach (DataRow row in dt.Rows)
            {
                if (row["idsName"].ToString() == "" || row["idsName"].ToString() == "其它") continue;
                string pinyin = ChineseCap(row["idsName"].ToString().Substring(0, 1));
                if (dic.ContainsKey(pinyin))
                {
                    dic[pinyin] += string.Format("<a href='{1}' title='{2}'>{0}</a>", clsCommon.leftx(row["idsName"].ToString(), 10), Global.RewriteStaticUrl(link + "?idsid=" + row["idsID"].ToString()), row["idsName"].ToString());
                }
                else
                {
                    dic.Add(pinyin, string.Format("<a href='{1}' title='{2}'>{0}</a>", clsCommon.leftx(row["idsName"].ToString(), 10), Global.RewriteStaticUrl(link + "?idsid=" + row["idsID"].ToString()), row["idsName"].ToString()));
                }
            }
 
            return dic;
        }
 
        //转换
        public string ChineseCap(string ChineseStr)
        {
            string Capstr = string.Empty;
            byte[] ZW = new byte[2];
            long ChineseStr_int;
            string CharStr, ChinaStr = "";
            for (int i = 0; i <= ChineseStr.Length - 1; i++)
            {
                CharStr = ChineseStr.Substring(i, 1).ToString();
                ZW = System.Text.Encoding.Default.GetBytes(CharStr);
                // 得到汉字符的字节数组
                if (ZW.Length == 2)
                {
                    int i1 = (short)(ZW[0]);
                    int i2 = (short)(ZW[1]);
                    ChineseStr_int = i1 * 256 + i2;
 
                    if ((ChineseStr_int >= 45217) && (ChineseStr_int <= 45252))
                    {
                        ChinaStr = "A";
                    }
                    else if ((ChineseStr_int >= 45253) && (ChineseStr_int <= 45760))
                    {
                        ChinaStr = "B";
                    }
                    else if ((ChineseStr_int >= 45761) && (ChineseStr_int <= 46317))
                    {
                        ChinaStr = "C";
                    }
                    else if ((ChineseStr_int >= 46318) && (ChineseStr_int <= 46825))
                    {
                        ChinaStr = "D";
                    }
                    else if ((ChineseStr_int >= 46826) && (ChineseStr_int <= 47009))
                    {
                        ChinaStr = "E";
                    }
                    else if ((ChineseStr_int >= 47010) && (ChineseStr_int <= 47296))
                    {
                        ChinaStr = "F";
                    }
                    else if ((ChineseStr_int >= 47297) && (ChineseStr_int <= 47613))
                    {
                        ChinaStr = "G";
                    }
                    else if ((ChineseStr_int >= 47614) && (ChineseStr_int <= 48118))
                    {
 
                        ChinaStr = "H";
                    }
                    else if ((ChineseStr_int >= 48119) && (ChineseStr_int <= 49061))
                    {
                        ChinaStr = "J";
                    }
                    else if ((ChineseStr_int >= 49062) && (ChineseStr_int <= 49323))
                    {
                        ChinaStr = "K";
                    }
                    else if ((ChineseStr_int >= 49324) && (ChineseStr_int <= 49895))
                    {
                        ChinaStr = "L";
                    }
                    else if ((ChineseStr_int >= 49896) && (ChineseStr_int <= 50370))
                    {
                        ChinaStr = "M";
                    }
 
                    else if ((ChineseStr_int >= 50371) && (ChineseStr_int <= 50613))
                    {
                        ChinaStr = "N";
 
                    }
                    else if ((ChineseStr_int >= 50614) && (ChineseStr_int <= 50621))
                    {
                        ChinaStr = "O";
                    }
                    else if ((ChineseStr_int >= 50622) && (ChineseStr_int <= 50905))
                    {
                        ChinaStr = "P";
 
                    }
                    else if ((ChineseStr_int >= 50906) && (ChineseStr_int <= 51386))
                    {
                        ChinaStr = "Q";
 
                    }
                    else if ((ChineseStr_int >= 51387) && (ChineseStr_int <= 51445))
                    {
                        ChinaStr = "R";
                    }
                    else if ((ChineseStr_int >= 51446) && (ChineseStr_int <= 52217))
                    {
                        ChinaStr = "S";
                    }
                    else if ((ChineseStr_int >= 52218) && (ChineseStr_int <= 52697))
                    {
                        ChinaStr = "T";
                    }
                    else if ((ChineseStr_int >= 52698) && (ChineseStr_int <= 52979))
                    {
                        ChinaStr = "W";
                    }
                    else if ((ChineseStr_int >= 52980) && (ChineseStr_int <= 53640))
                    {
                        ChinaStr = "X";
                    }
                    else if ((ChineseStr_int >= 53689) && (ChineseStr_int <= 54480))
                    {
                        ChinaStr = "Y";
                    }
                    else if ((ChineseStr_int >= 54481) && (ChineseStr_int <= 55289))
                    {
                        ChinaStr = "Z";
                    }
                }
                else
                {
                    Capstr = ChineseStr;
                    break;
                }
                Capstr = Capstr + ChinaStr;
            }
            return Capstr;
        }

　　

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