1, different notes: Dangdang books only indicate the price and total price of books such as literature and writing. Dangdang invoice details are the notes of the invoice, which indicate the book name, unit price, quantity, total price, etc. And the final total price.
2. When the contents are different, the details of the online invoice are invoices of certain commodities (not specific enough, such as office supplies). Dangdang book is a more specific invoice content detail (such as binding machine, which belongs to detailed content, rather than issuing invoices according to the category of office supplies).