版本：2.0.0-alpha.53
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.53/angular2-polyfills.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.53/angular2-polyfills.min.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.53/angular2-testing.umd.dev.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.53/angular2.dev.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.53/angular2.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.53/angular2.min.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.53/angular2.umd.dev.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.53/angular2.umd.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.53/angular2.umd.min.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.53/http.dev.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.53/http.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.53/http.min.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.53/router.dev.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.53/router.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.53/router.min.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.53/testing.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.53/web_worker/ui.dev.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.53/web_worker/worker.dev.