这是一个图书管理系统的软件,能实现图书的存取、删除、借书、还书、和权限等功能，给这方面的编程人员有很大的帮助。-This is a library management system software, able to book access, delete, library, book, the functions and powers, to which the programmer will be very helpful.

C exercise Exercise 5: ‘for’ and ‘do … while” repetition statements 1. Write a program which uses a do/while loop to print out the first 10 powers of 2 other than 0 (ie. it prints out the values of 21, 22, ..., 210). Use a for loop to do the s