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软件工程课后习题精讲 -ruanjian

在图书馆管理系统中，要为每个借阅者建立一个账户，并给借阅者发放借阅卡（借阅卡可以提供借阅卡号、借阅者姓名），账户中存储借阅的个人信息、借阅信息以及预定信息。持有借阅卡的借阅者可以借阅书刊、返还书刊、查阅书刊信息、预定书刊并取消预定，但这些操作都是通过图书馆管理员进行的，也及借阅者不直接与系统交互，而是图书馆管理员充当借阅者的代理与系统交互。在借阅书刊时，需要输入所借阅的书刊名，书刊的ISBN/ISSN号，然后输入借阅者的图书卡号和借阅者名，完成后提交表格，系统验证借阅者是否有效（在系统中存在账户），若有效，借阅请求被接受，然后查询数据库系统，看借阅者所借阅的书刊是否存在，若存在，则借阅者可以借出书刊，建立并在系统中存储借阅纪录。借阅者还书后，删除关于所还书刊的借阅纪录。如果借阅者所借出的书刊已经被借出，借阅者还可预订该书刊，一旦借阅者预订的书刊可以获得，就将书刊直接寄给预订人（为了简化系统，预订书刊可获得就不通知借阅者了）。另外，系统设置了书刊的最长借阅期，如果借阅者归还的时间超过了最长借阅期，要缴纳一定的滞纳金。- Readers card holders can borrow books, return books, check books information, books and planned to cancel, but these operations are carried out by the librarians, and do not borrow directly with the interactive system, but librarians who act as agents to borrow and system interaction. The books, by the need to import borrow books, and books by ISBN/ISSN, and then borrow the book numbers and those who borrow, forms submitted after completion, the system certification Readers whether effective (in the system exist account), if eff

本文介绍了如何使用qt提供的接口来设计自己的GUI风格(look and feel)，并通过一个具体的例子(使QSpinBox垂直显示)来详细说明过程。运行环境：redhat 9.0，qt-x11-free-3.2.*-This paper describes how to use the interface provided by the qt to design their own GUI style (look and f eel), and adopted a specific example (so that QSpinBox displayed vertically) to elaborate on the process. Operating environment : redhat 9.0, qt- x11-free-3.2 .*

14天内学会TCP/IP协议(HTML)，网页版简单易懂，说明详细。-Within 14 days of the Institute TCP/IP protocol (HTML), web page version of easy-to-read, give details.

老婆写医学实验论文，要用到均方差计算，他装不上专业的软件，于是我就帮他写了一个，虽然很简单，但是结果肯定是没问题的-medical experiments wife wrote papers, we had to use variance, he pretended not professional software, Thus, I would help him write a one, though very simple, but it is certainly not the problem

1erterwe1热望 热望・-1erterwe1 aspire aspire

Python开发编码规范,推荐下载-Python development coding norms and recommended downloading

大名鼎鼎的coint 是计量经济学最重要的应用软件之一，这是一份重要的说明书-famous coint Econometrics is the most important one of the application software, which is an important specification

WITNESS实验案例,汇集了生产实践、经济管理等多领域的实验案例,帮助大学本科生、研究生充分掌握WITNESS的仿真建模的实验步骤-WITNESS test case, the practice of pooling the production, economic management and other areas of the test case, help undergraduate, graduate students fully grasp WITNESS simulation modeling of the experimental steps

详细介绍了make file 文件的编辑规范。对于大型项目的编译文件的设计，很实用。-make file 3.8