版本：
文件：
- https://cdn.bootcdn.net/ajax/libs/angular-file-saver/1.1.3/angular-file-saver.bundle.js
- https://cdn.bootcdn.net/ajax/libs/angular-file-saver/1.1.3/angular-file-saver.bundle.min.js
- https://cdn.bootcdn.net/ajax/libs/angular-file-saver/1.1.3/angular-file-saver.js
- https://cdn.bootcdn.net/ajax/libs/angular-file-saver/1.1.3/angular-file-saver.min.js