版本：2.0.0-alpha.22
- https://cdnjs.cloudflare.com/ajax/libs/angular.js/2.0.0-alpha.22/angular2.dev.js
- https://cdnjs.cloudflare.com/ajax/libs/angular.js/2.0.0-alpha.22/angular2.js
- https://cdnjs.cloudflare.com/ajax/libs/angular.js/2.0.0-alpha.22/angular2.min.js
- https://cdnjs.cloudflare.com/ajax/libs/angular.js/2.0.0-alpha.22/angular2.sfx.dev.js
- https://cdnjs.cloudflare.com/ajax/libs/angular.js/2.0.0-alpha.22/router.dev.js
- https://cdnjs.cloudflare.com/ajax/libs/angular.js/2.0.0-alpha.22/router.sfx.dev.js