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非常实用的一个ext教程，可以让你快速的掌握ext技术并进行开发。(A very useful ext tutorial, allowing you to quickly grasp the the ext technology and development.)

通过本工具可以将URL快速转换为迅雷、快车、旋风等专用下载链接(Through this tool can be quickly converted to a URL Thunder, Express, cyclones and other special download link)

说明：  1. 能够实现根据以下关键字查询：学生姓名 、学号、班级、课程名称。 2. 能够实现按照单科成绩、总成绩、平均成绩、学号排序。 3. 能够实现学生信息的插入、删除和修改。 4. 能够查询每个课程的最高分、最低分及相应学生姓名、班级和学号。 5. 能够查询每个班级某门课程的优秀率(90 分及以上)、不及格率，并进行排序。(1. Be able to query according to the following keywords: student name, student number, class, course name. 2. It can be sorted according to single subject score, total score, average score and student number. 3. Be able to insert, delete and modify student information. 4. Be able to query the highest score and lowest score of each course and the corresponding student name, class and student number. 5. Be able to query the excellent rate (90 points and above) and failure rate of a course in each class, and sort them.)

关于JMX的入门资料，代码展示了一些JMX的基础知识(Introductory information about JMX, JMX code shows some of the basics)

Wicket is a framework that makes building web applications easier and more fun. It boasts an object-oriented programming model that encourages you to write maintainable code and helps you scale your development effort with its facilities for reusable components and separation of concerns.

这是一个小型的Java聊天练习，仅供参考学习(This is a small Java chat exercises are for reference only learning)

java教学实例1,适合新手学习使用的简单范例(java example 1)

java代码maven工具类，可以查看java使用方法。(Java code Maven tool class, you can see how Java is used.)

这是一个可以用的图片，很漂亮，不用切图，使用使用(abcdefgkdgklgndngljnlngsgsdgsdgsd)

生成pdf文档工具软件Itex中文开发帮助文档，英语菜鸟开发人员的助手(Generated pdf document tool software Itex Chinese developers help documentation, English rookie developers assistant)