/// <summary>
        /// 获取部门
        /// </summary>
        /// <param name="accessToken"></param>
        /// <param name="partyid">部门编号集合</param>
        /// <returns></returns>
        static List <DeptSelector> GetDepartmentsAll(string accessToken, List <int> partyid)
        {
            if (partyid == null || partyid.Count == 0)
            {
                return(null);
            }

            List <DeptSelector> depts      = new List <DeptSelector>();
            Department          department = new Department();

            foreach (int _partyid in partyid)
            {
                var dept  = department.List(accessToken, _partyid);
                var items = DeptSelector.ConvertTo(dept).ToList();
                if (items != null && items.Count > 0)
                {
                    var item = items.FirstOrDefault(e => e.Id == _partyid.ToString());
                    if (item != null)
                    {
                        item.Special = true;// 标识为顶级节点
                    }
                    depts.AddRange(items);
                }
            }
            return(depts);
        }
        /// <summary>
        /// 获取部门
        /// </summary>
        /// <param name="accessToken"></param>
        /// <param name="partyid">部门编号集合</param>
        /// <returns></returns>
        static List <DeptSelector> GetDepartments(string accessToken, List <int> partyid, int deptid = -1)
        {
            if (partyid == null || partyid.Count == 0)
            {
                return(null);
            }

            List <DeptSelector> depts      = new List <DeptSelector>();
            Department          department = new Department();

            foreach (int _partyid in partyid)
            {
                var dept = department.List(accessToken, _partyid);// 部门信息
                if (dept != null && dept.errcode == 0)
                {
                    if (deptid == -1)
                    {
                        Department.RequestBody body = dept.department.FirstOrDefault(e => e.id == _partyid);
                        var item = DeptSelector.ConvertTo(body, true);
                        if (item != null)
                        {
                            depts.Add(item);
                        }
                    }
                    else
                    {
                        var bodys = dept.department.Where(e => e.parentid == deptid).ToList();
                        var items = DeptSelector.ConvertTo(bodys).ToList();
                        if (items != null && items.Count > 0)
                        {
                            depts.AddRange(items);
                        }
                    }
                }
            }
            return(depts);
        }