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基于java搜索引擎开发流程与实践ppt，主讲老师罗刚(java Search engine ppt)

说明：  在软件业，AOP为Aspect Oriented Programming的缩写，意为：面向切面编程，通过预编译方式和运行期动态代理实现程序功能的统一维护的一种技术。AOP是OOP的延续，是软件开发中的一个热点，也是Spring框架中的一个重要内容，是函数式编程的一种衍生范型。利用AOP可以对业务逻辑的各个部分进行隔离，从而使得业务逻辑各部分之间的耦合度降低，提高程序的可重用性，同时提高了开发的效率(In the software industry, AOP is the abbreviation of Aspect Oriented Programming, which means: Face-Oriented Programming, a technology to achieve unified maintenance of program functions through pre-compiling and run-time dynamic proxy. AOP is the continuation of OOP, a hotspot in software development, an important content in Spring framework, and a derivative paradigm of functional programming. Using AOP can isolate all parts of business logic, which reduces the coupling between the parts of business logic, improves the reusability of programs, and improves the efficiency of development.)

说明：  简单实现抽签功能。通过两个数组的定义及借助random方法实现(Draw a simple function to achieve. Through the definition and use of two arrays of random method)

苏苏与朱朱的文件管理系统(interminably with the document management system)

谷歌地图的官方demo，支持各种移动设备开发，以及穿戴设备地图(The official demo of Google Maps supports mobile device development and wearing device maps)

video前端模板,有待开发,开发完,就能用,啊啊啊啊啊啊啊(Vieo front-end template, to be developed, developed, can be used, ah ah ah ah ah ah ah ah ah ah ah ah)

这段代码是用来理解 polymorphism 多态，写的很详细，适合初学者！(This code is used to understand the polymorphism polymorphism, written in great detail, suitable for beginners!)

OldThreadTest extends junit.framework.TestCase Source Code for Andriod.

Has Positional Pred Checker extends X Path Visitor Source Code for Andriod.

Returns the enum for matching the provided qualifier value.