《跨文化交际英语》课程PPT教学课件（阅读教程3）Unit 2 Using Information Found on the Web

• Motivation and taxonomy of crawlers • Basic crawlers and implementation issues • Universal crawlers • Preferential (focused and topical) crawlers • Evaluation of preferential crawlers • Crawler ethics and conflicts • New developments: social, collaborative, federated crawlers

⚫ To explain how the Web browser controls and executes applets (§ 14.2). ⚫ To describe the init, start, stop, and destroy methods in the Applet class (§ 14.2). ⚫ To know how to embed applets in Web pages (§ 14.4). ⚫ To run applets from appletviewer and from Web browsers (§ 14.4). ⚫ To pass string values to applets from HTML (§ 14.5). ⚫ To write a Java program that can run as both an application and an applet (§ 14.6). ⚫ To get image files using the URL class and display images in the panel (§ 14.9 Optional). ⚫ To develop a reusable component ImageViewer to display images (§ 14.10 Optional). ⚫ To get audio files and play sound (§ 14.12 Optional). ⚫ To package and deploy Java projects using Java archive files (§ 14.13 Optional). ⚫ To use Swing pluggable look-and-feel (§ 14.14 Optional)

1.1 Internet的起源和发展 1.2 Internet提供的服务 1.3 Internet基本知识 1.4 WWW基本知识 1.5 小结

XHTML是万维网协会(W3C)定义和推荐的最新一代Web标准。尽管HTML是人们已 经习惯使用的Web网页设计语言,而且采用TML编写的网页已有数以百万计,但由于 XHTML的语法比HTML的语法严谨得多使用 XHTML设计的Web网页更易于在网络上 交换,因此 XHTML立下的目标就是要在不久的将来取代HTML。 XHTML与HTML非常相似,名称上也只是加了一个表示可扩展的字母X

15.1 Apache服务器简介 15.2安装和启动 Apache服务器 15.3 Apache服务器的配置 15.4配置虚拟主机

How to Contact the mathWorks www.mathworks.com Web comp.soft-sys matlab Newsgroup support@mathworks.com Technical support suggest@mathworks.comProductenhancementsuggestions

知识要点:Web系统的安全弱点,系统服务包和安全补丁, 限制用户权限,文件系统安全,删除或禁用不必要的组件和 服务,日志和审核,系统防病毒策略与案例。IS的安全机制, 设置IP地址限制、设置用户身份验证,设置Web服务器权限, 控制IIS应用程序,审核IS日志记录,安全加固工具及应用 防火墙和路由器应用,使用网络DMZ,虚拟专用网络

How to contact the mathWorks: www.mathworks.com Web comp. soft-sys matlab Newsgroup supportamathworks com Technical support suggestemathworks.com Product enhancement suggestion

How to contact the mathWorks: www.mathworks.com Web comp. soft-sys matlab Newsgroup supportamathworks com Technical support suggestemathworks.com Product enhancement suggestion