Introduction - If you have any usage issues, please Google them yourself
system should achieve the operation and function are defined as follows : 1) The amount of editing : buy a new book, After classification and identification of the registered after ISBN books accounts. If this book in the accounts, will only increase the total inventory. 2) Elimination of stock : some had reservations book value of its accounts from the books that were written off. 3) Readers : If a certain amount of the stock is greater than 0, then lent a registered borrow the books permit number and the return period. 4) return : Readers write-off of the registration, change the existing volume of the book.