C#提取汉字首字母

 using System; using System.Collections.Generic; using System.Text; namespace StringOption { public class GetStringSpell { /// <summary> /// 提取汉字首字母 /// </summary> /// <param name="strText">需要转换的字</param> /// <returns>转换结果</returns> public static string GetChineseSpell(string strText) { int len = strText.Length; string myStr = ""; for (int i = 0; i < len; i++) { myStr += getSpell(strText.Substring(i, 1)); } return myStr; } /// <summary> /// 把提取的字母变成大写 /// </summary> /// <param name="strText">需要转换的字符串</param> /// <returns>转换结果</returns> public static string GetLowerChineseSpell(string strText) { return GetChineseSpell(strText).ToLower(); } /// <summary> /// 把提取的字母变成大写 /// </summary> /// <param name="myChar">需要转换的字符串</param> /// <returns>转换结果</returns> public static string GetUpperChineseSpell(string strText) { return GetChineseSpell(strText).ToUpper(); } /// <summary> /// 获取单个汉字的首拼音 /// </summary> /// <param name="myChar">需要转换的字符</param> /// <returns>转换结果</returns> public static string getSpell(string myChar) { byte[] arrCN = System.Text.Encoding.Default.GetBytes(myChar); if (arrCN.Length > 1) { int area = (short)arrCN[0]; int pos = (short)arrCN[1]; int code = (area << 8) + pos; int[] areacode = { 45217, 45253, 45761, 46318, 46826, 47010, 47297, 47614, 48119, 48119, 49062, 49324, 49896, 50371, 50614, 50622, 50906, 51387, 51446, 52218, 52698, 52698, 52698, 52980, 53689, 54481 }; for (int i = 0; i < 26; i++) { int max = 55290; if (i != 25) max = areacode[i + 1]; if (areacode[i] <= code && code < max) { return System.Text.Encoding.Default.GetString(new byte[] { (byte)(65 + i) }); } } return "_"; } else return myChar; } } }