/// <summary>
 /// 验证指定的键值对是否在配置中心中做了更改  仅仅针对于重新加载配置  不针对重启
 /// 也可前缀方式 比较两个字典Dictionary是否相同
 /// </summary>
 /// <param name="configKey"></param>
 /// <param name="prefix">该key是否为前缀的key</param>
 /// <returns>如果指定的配置键修改了 则返回true</returns>
 public bool CheckUpdate(string configKey, bool prefix = false)
 {
     if (prefix)
     {
         if (!configKey.EndsWith("."))
         {
             configKey = configKey + ".";
         }
         var x = GetByprefix(configKey);
         var y = OldConfigDictionary.Where(dic => dic.Key.StartsWith(configKey)).ToDictionary(dic => dic.Key.Remove(0, configKey.Length), dic => dic.Value);
         if (x.Count != y.Count)
         {
             return(true);
         }
         if (x.Keys.Except(y.Keys).Any())
         {
             return(true);
         }
         if (y.Keys.Except(x.Keys).Any())
         {
             return(true);
         }
         return(!x.All(pair => string.Equals(pair.Value, y.TryGet(pair.Key), StringComparison.CurrentCultureIgnoreCase)));
     }
     try
     {
         return(!string.Equals(OldConfigDictionary.TryGet(configKey), ConfigDictionary.TryGet(configKey), StringComparison.CurrentCultureIgnoreCase));
     }
     catch
     {
         return(true);
     }
 }