说明：  no intro
(with improving the quality of teaching, quality of the software are increasingly high requirements, therefore, teachers, teaching students the right ordering of the increasing attention paid to get the teaching process simple, convenient, fast, and consequently, do a good online ordering system is very important. Y) 4 uzDp Online is a teacher or student to provide staff to procure the materials, the staff review, to teachers or students invoices, then go to a warehouse to receive materials, but the staff found the book were unavailable. to timely report to the Procurement Department, the Department of timely procurement of the purchase, and then staff to revise records.)