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不管是新手还是专家，都会发现本书的巨大价值。本书提供了有用的信息并且可以为每个人提供帮助。Perl基于社区的开发模式拥有超过一百万的专职程序员，鼓励用户间的信息共享，并且使得开发者可以找到他们所能想象出的几乎所有问题的答案。在本书中可以找到其中大部分问题的答案。<br>本书中的每个hack都是一个简短的课程。有些是能教会读者必要技巧的实践练习，而另外一些则举例说明Perl可以完成的有趣事情。大多数hack都包含两部分：需要解决的问题的直接答案，以及可以举一反三到其他情况的更深层、更精细的技巧。<br>比如学习如何添加CPAN快捷方式到Firefox Web浏览器、反向阅读文件、用Perl编写图形游戏等。<br>为了读者阅读方便，本书以主题来分节，因此可以快速翻阅并在任何关注的hack处停下来。全书分为以下章节：<br>● 生产率Hack<br>● 用户交互<br>● 数据解析<br>● 使用模块<br>● 对象Hack<br>● 调试<br>本书吸引了无数程序员。不管是经验丰富的程序员，还是单纯喜欢探索技术的业余爱好者，都可以通过它深入学习Perl。<br>

The Principles and Strategies of<br/>The Principles and Strategies of<br/>Design Patterns <br/>Design Patterns <br/>Alan Shalloway, Net Objectives, alshall@netobjectives.com <br/>James R.Trott, Millennium Relief & Development Services, jtrott@mrds.org <br/>(Chapter 14 of the Second Edition of their book: (R)¨Design Patterns Explained: A New<br/>Perspective on Object-Oriented Design? due out in August, 2004) <br/>Design patterns do not exist in isolation, but work in concert with other design <br/>patterns to help you create more robust applications. In this book, you will gain a <br/>solid understanding of twelve core design patterns and a pattern used in <br/>analysis. You will gain enough of a foundation that you will be able to read the <br/>design pattern literature, if you want to, and possibly discover patterns on your <br/>own. Most importantly, you will be better equipped to create flexible and <br/>complete software that is easier to maintain. <br/>