版本：2.0.0-alpha.51
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.51/angular2.dev.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.51/angular2.dev.min.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.51/angular2.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.51/angular2.min.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.51/http.dev.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.51/http.dev.min.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.51/http.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.51/http.min.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.51/router.dev.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.51/router.dev.min.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.51/testing.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.51/testing.min.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.51/web_worker/ui.dev.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.51/web_worker/ui.dev.min.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.51/web_worker/worker.dev.
- https://cdn.bootcdn.net/ajax/libs/angular./2.0.0-alpha.51/web_worker/worker.dev.min.