'优惠码唯一标识', 'Code' => '优惠码名称', 'Description' => '优惠码描述', 'Discount_type' => '折扣类型', 'Min_order' => '最低消费金额', 'Max_discount' => '最大优惠金额', 'Status' => '状态', 'Threshold' => '优惠门槛', 'Discount_value' => '优惠金额', 'Created_at' => '创建时间', 'Updated_at' => '更新时间', 'Percentage' => '百分比优惠', 'Fixed' => '固定优惠', 'Active' => '可用', 'Inactive' => '禁用', ];