public GateInfo[] GetBridgeFromRegion(string id)
        {
            List <GateInfo> list    = new List <GateInfo>();
            var             gateIds = Bridges?.Where(_ => _.Links.Any(l => l == id)).Select(_ => _.ID);

            if (Gates != null && gateIds.Count() > 0)
            {
                foreach (var gate in gateIds)
                {
                    var reg = Gates.FirstOrDefault(_ => _.ID == gate);
                    if (reg != null)
                    {
                        list.Add(reg);
                    }
                }
            }
            return(list.ToArray());
        }
 public void RemoveBridge(string id, string regId)
 {
     Bridges?.Where(b => b.ID == id).ToList().ForEach(_ => _.Links?.RemoveAll(r => r == regId));
     Bridges?.RemoveAll(_ => _.Links == null || _.Links.Count == 0);//删除空的关联列表
 }