/// <summary>
 /// DES数据加密
 /// </summary>
 /// <param name="targetValue">目标值</param>
 /// <param name="key">密钥</param>
 /// <returns>加密值</returns>
 private static string Encrypt(string targetValue, string key)
 {
     return(SecretUtil.DesEncrypt(targetValue, key));
 }