_order是实体类的实例
int or_id = Create(_order, (obj) =>
{
_order.Member = _Member;
_order.Or_number = DateTime.Now.ToString("yyyyMMddHHmmssffff");
_order.Or_payPrice = 0;
_order.Or_buyerName = _Member.M_realName;
_order.Or_buyerName = address[0];
_order.Or_buyerTel = address[1];
_order.Or_buyerAddress = address[2];
});