using System;
using System.Collections.Generic;
using System.Text;
using System.Text.RegularExpressions;

namespace Mini.Common
{
    public static class CommpnHelpEx
    {
        /// <summary>
        /// unicode编码
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static string ToUnicodeString(this string str)
        {
            StringBuilder strResult = new StringBuilder();
            if (!string.IsNullOrEmpty(str))
            {
                for (int i = 0; i < str.Length; i++)
                {
                    strResult.Append("\\u");
                    strResult.Append(((int)str[i]).ToString("x"));
                }
            }
            return strResult.ToString();
        }


        /// <summary>
        /// unicode解码
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static string FromUnicodeString(this string str)
        {
            if (string.IsNullOrEmpty(str))
                return str;
            return System.Text.RegularExpressions.Regex.Unescape(str);
        }
    }
}