保存emoji到数据库

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/// <summary> 
       /// <summary> 
       /// 字符串转Unicode 
       /// </summary> 
       /// <param name="source">源字符串</param> 
       /// <returns>Unicode编码后的字符串</returns> 
       public static string String2Unicode(string source)
       {
           byte[] bytes = Encoding.Unicode.GetBytes(source);
           StringBuilder stringBuilder = new StringBuilder();
           for (int i = 0; i < bytes.Length; i += 2)
           {
               stringBuilder.AppendFormat("\\u{0}{1}", bytes[i + 1].ToString("x").PadLeft(2, '0'), bytes[i].ToString("x").PadLeft(2, '0'));
           }
           return stringBuilder.ToString();
       }
 
       /// <summary> 
       /// Unicode转字符串 
       /// </summary> 
       /// <param name="source">经过Unicode编码的字符串</param> 
       /// <returns>正常字符串</returns> 
       public static string Unicode2String(string source)
       {
           return new Regex(@"\\u([0-9A-F]{4})", RegexOptions.IgnoreCase | RegexOptions.Compiled).Replace(
                        source, x => string.Empty + Convert.ToChar(Convert.ToUInt16(x.Result("$1"), 16)));
       }

  

posted @   方金  阅读(885)  评论(0编辑  收藏  举报
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