版本：11.2.11
- https://cdn.bootcdn.net/ajax/libs/angular/11.2.11/core-testing.umd.js
- https://cdn.bootcdn.net/ajax/libs/angular/11.2.11/core-testing.umd.min.js
- https://cdn.bootcdn.net/ajax/libs/angular/11.2.11/core.umd.js
- https://cdn.bootcdn.net/ajax/libs/angular/11.2.11/core.umd.min.js