hao wang thinks this is interesting: If we want to load an existing module that has already been defined in some other file, we use the the angular.module function with just the first argument, as follows:angular.module('notesApp'); From 2. Basic AngularJS Directives and Controllers from AngularJS: Up and Running by Brad Green, Shyam Seshadri Publisher: O'Reilly Media, Inc. Released: September 2014 Note 如果我们打算使用在其它文件里定义的模块，我们可以使用 angular.module 函数，只需要指定第一个参数。 Share this highlight http://www.safaribooksonline.com/a/angularjs-up-and/30970/ Twitter Facebook Google Plus Email Get Instant Access Now Start a Free Trial Learn about Safari for Business Have an account? Sign in. Minimise Unlock the rest of AngularJS: Up and Running and 30,000 other books and videos By clicking this box, you confirm that you have read and agree to the terms and conditions of our Membership Agreement, and you understand that when your trial period ends, you will be required to provide billing information if you wish to continue using the service. Unlock the rest of this book Start a Free 10-Day Trial loading Learn about Safari for Business Have an account? Sign in.