Welcome欢迎

Welcome to Developing Back-end Apps with Node.js and Express. In this four-week class, expect to spend approximately 3-4 hours per week on it. In week one, you will be introduced to Node.js and server-side JavaScript. In week two, you learn about asynchronous programming using callback functions. In week three, you learn about the Express web application Framework. During week four, you develop a book review application project to be reviewed by your peers. Throughout the course, you will have ample time to practice and hone your skills with hands-on labs.
欢迎来到使用 Node.js 和 Express 开发后端应用程序。在这个四周的课程中，你每周预计需要投入 3-4 小时。在第一周，你将了解 Node.js 和服务器端 JavaScript。在第二周，你将学习使用回调函数进行异步编程。在第三周，你将学习 Express Web 应用程序框架。在第四周，你将开发一个书评应用程序项目，由你的同学进行评审。在整个课程中，你将有充足的时间通过动手实验室练习和磨练你的技能。

To be successful in this course and become adept with using Node.js and Express, you should:
要在本课程中取得成功并熟练使用 Node.js 和 Express，你应该：

• watch all videos  观看所有视频
• take the practice and graded quizzes
  进行练习和评分测验
• complete the hands-on labs
  完成动手实验室
• complete the final project
  完成最终项目
• peer-review two of your classmate’s projects
  对两位同学的作业进行同行评审
• periodically review the discussion forums
  定期审查讨论论坛

Please use the discussion forum if you get stuck or want to discuss content further. 
请使用讨论论坛，如果您遇到困难或想进一步讨论内容。

Have fun learning about Node.js and Express!
享受学习 Node.js 和 Express 的乐趣！