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        /// <summary>
        /// GB2312编码
        /// </summary>
        /// <param name="str">待编码字符</param>
        /// <returns>编码结果</returns>
      

 1  public static string GB2312(string str)
 2         {
 3             StringBuilder sb = new StringBuilder();
 4             //GB2321的编码方式
 5             byte[] byStr = System.Text.Encoding.GetEncoding ("GB2312").GetBytes(str);
 6             for (int i = 0; i < byStr.Length; i++)
 7             {
 8                 //转换为16进制方式 可选2,8,10,16进制
 9                 sb.Append(@"%" + Convert.ToString(byStr[i], 16));
10             }
11             return (sb.ToString());
12         }
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         /// <summary>
        /// GB2312解码
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
       

 1 public static string DeGB2312(string str)
 2         {
 3             byte[] bytes = new byte[str.Split('%').Length ];
 4             int i=0;
 5             foreach (var item in str.Split('%'))
 6             {
 7                 if (item !="")
 8                 {
 9                     //转换为16进制的字节
10                     bytes[i] = Convert.ToByte(item,16);
11                     i++;
12                 }
13               
14             }
15             //GB2312的解码
16             return Encoding.GetEncoding ("GB2312").GetString(bytes);
17         }
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        /// <summary>
        /// UTF8编码
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
       

 1 public static string EnUTF8(string str)
 2         {
 3             StringBuilder sb = new StringBuilder();
 4             byte[] byStr = System.Text.Encoding.UTF8.GetBytes(str);
 5             for (int i = 0; i < byStr.Length; i++)
 6             {
 7                 sb.Append(@"%" + Convert.ToString(byStr[i], 16));
 8             }
 9 
10             return (sb.ToString());
11         }
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        /// <summary>
        /// UTF8解码
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
       

 1 public static string DeUTF8(string str)
 2         {
 3             byte[] bytes = new byte[str.Split('%').Length ];
 4             int i=0;
 5             foreach (var item in str.Split('%'))
 6             {
 7                 if (item !="")
 8                 {
 9                     bytes[i] = Convert.ToByte(item,16);
10                     i++;
11                 }
12               
13             }
14             return Encoding.UTF8.GetString(bytes);
15         }
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 ///C# 32位md5
/// <summary>
/// 获得32位的MD5加密
/// </summary>
/// <param name="str">加密字符串</param>
/// <returns>返回值</returns>

1 public static string GetMD532(string str)
2 {
3     MD5 md5 = MD5.Create();
4     byte[] d = md5.ComputeHash(Encoding.Default.GetBytes(str));
5     return BitConverter.ToString(d).Replace("-", "").ToLower();
6 
7 }
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posted on 2013-11-17 16:29  李空  阅读(209)  评论(0)    收藏  举报