它是服务器端脚本的Web服务器还是编程语言？
解决方法
从
Node.js website
Node.js is a platform built on Chrome’s JavaScript runtime for easily
building fast,scalable network applications. Node.js uses an
event-driven,non-blocking I/O model that makes it lightweight and
efficient,perfect for data-intensive real-time applications that run
across distributed devices.
事件驱动意味着服务器只在事件发生时作出反应。这使我们能够创建高性能，高度可扩展的“实时”应用程序。
最后，this is probably the best article会让你兴奋的Node.js