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management system requirements are as follows: 1. can be in various ways, such as title, number, the author) of the query library. 2. To be able to easily borrow books, renewal of library books, return to books. 3. To be able to query their basic information and to borrow books. 4. To be able to become familiar with Library Management System.

使用js控制，使用同一个链接识别二维码是ios还是android设备，跳转不同的链接进行下载(The use of JS control, use the same link identification of two-dimensional code is IOS or Android device, a jump of different links to download )

该实例用的是android下使用qq邮箱在后台发送Email

对txt excel word文件内容进行提取并且能对关键的内容进行提取和查询，用lucence4.4实现，并且使用一些c 语言的知识，测试结果通过。

java 内置的 沙箱服务

android平台下，超级用户的源码.包含了android的apk源码和一份su的源码(source code of android s superuser.)

Stooing 幕游戏

学生信息管理系统框架已经搭建好，自己加需要的功能，基本的增删改查，以及登录功能都已经实现，各位可以根据需要自己添加新的功能.

实现基于 android 中英互译电子词典代码 (android dictionral eng-ch)

An exception that indicates that garbage-collector is finalizing a database object that is not explicitly closed.