'未确认', self::STATE_ONE => '已确认', ]; const Order_type_one = 1;//普通采购 const Order_type_two = 2;//代发采购 const Order_type_three = 3;//采购施工(安装费) public static $order_type = [ self::Order_type_one => '普通采购', self::Order_type_two => '代发采购', self::Order_type_three => '采购施工(安装费)' ]; const range_function = 'purchaseRange'; }