本书首先简要介绍Node.js，然后通过各种示例讲解Node.js 的基本特性，再用案例式教学的方式讲述
如何用Node.js 进行Web 开发，接着探讨一些Node.js 进阶话题，最后展示如何将一个Node.js 应用部署到
生产环境中。(The book begins with a brief introduction to the basic characteristics of Node.js, and then through a variety of examples on the Node.js, and then about the case teaching method, how to use Node.js Web development, then discusses some advanced Node.js topics, finally show how a Node.js application deployment to production environment)