版本：
文件：
- https://cdn.bootcdn.net/ajax/libs/angular-loading-bar/0.9.0/loading-bar.css
- https://cdn.bootcdn.net/ajax/libs/angular-loading-bar/0.9.0/loading-bar.js
- https://cdn.bootcdn.net/ajax/libs/angular-loading-bar/0.9.0/loading-bar.min.css
- https://cdn.bootcdn.net/ajax/libs/angular-loading-bar/0.9.0/loading-bar.min.js