使用 Include 后 仍然此 ObjectContext 实例已释放，不可再用于需要连接的操作

    public partial class Users
    {
        public users()
        {
            this.advanced_property = new HashSet<advanced_property>();
            this.secondary_property = new HashSet<secondary_property>();
        }
    
        public int id { get; set; }
        public string qq { get; set; }
        public string sex { get; set; }
        public string ages { get; set; }
        public string zodiac_signs { get; set; }
        public string constellation { get; set; }
        public string blood_type { get; set; }
        public string location { get; set; }
    
        public virtual ICollection<advanced_property> advanced_property { get; set; }
        public virtual ICollection<secondary_property> secondary_property { get; set; }
    }

public List<T> FindListByExpression(Expression<Func<T, bool>> where, string greedyLoad = "")
        {
            try
            {

                using (context = new qqMarketingEntities1())
                {
                    var query = context.Set<T>();
                    if (!string.IsNullOrEmpty(greedyLoad))
                    {
                        List<string> greedyLoads = greedyLoad.Split(',').ToList();
                        foreach (var i in greedyLoads)
                        {
                            query.Include(i);
                        }
                        query.Where(where);
                    }

                    List<T> result = query.ToList<T>();
                    return result;
                }
            }
            catch (Exception e)
            {
                throw e;
            }

        }

public List<Users> GetUsersByParam(List<string> qqList, string sex = "", string ages = "", string zodica = "", string constellation = "", string blood = "", string location = "", string greedyLoad = "")
        {
            var esp = DynamicLinqExpressions.True<users>();
            esp.And(o => qqList.Contains(o.qq));
            if (!string.IsNullOrEmpty(sex))