code/Athena0.0.1/common/Util/Str.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.VisualBasic;
using System.Text.RegularExpressions;
using Athena.common.Util.Extension;
using System.Web;

namespace Athena.common.Util
{
    /// <summary>
    /// 字符串操作 - 工具方法
    /// </summary>
    public sealed partial class Str
    {
        #region Empty(空字符串)

        /// <summary>
        /// 空字符串
        /// </summary>
        public static string Empty
        {
            get { return string.Empty; }
        }

        #endregion

        #region PinYin(获取汉字的拼音简码)
        /// <summary>
        /// 获取汉字的拼音简码，即首字母缩写,范例：中国,返回zg
        /// </summary>
        /// <param name="chineseText">汉字文本,范例： 中国</param>
        public static string PinYin(string chineseText)
        {
            if (string.IsNullOrWhiteSpace(chineseText))
                return string.Empty;
            var result = new StringBuilder();
            foreach (char text in chineseText)
                result.AppendFormat("{0}", ResolvePinYin(text));
            return result.ToString().ToLower();
        }

        /// <summary>
        /// 解析单个汉字的拼音简码
        /// </summary>
        /// <param name="text">单个汉字</param>
        private static string ResolvePinYin(char text)
        {
            byte[] charBytes = Encoding.Default.GetBytes(text.ToString());
            if (charBytes[0] <= 127)
                return text.ToString();
            var unicode = (ushort)(charBytes[0] * 256 + charBytes[1]);
            string pinYin = ResolvePinYinByCode(unicode);
            if (!string.IsNullOrWhiteSpace(pinYin))
                return pinYin;
            return ResolvePinYinByFile(text.ToString());
        }

        /// <summary>