angular-docs-cn/modules/angular2/docs/cheatsheet/dependency-injection.md

@cheatsheetSection Dependency injection configuration @cheatsheetIndex 7 @description import {provide} from 'angular2/angular2';

@cheatsheetItem provide(MyService, {useClass: MyMockService})``provide|useClass Sets or overrides the provider for MyService to the MyMockService class.

@cheatsheetItem provide(MyService, {useFactory: myFactory})``provide|useFactory Sets or overrides the provider for MyService to the myFactory factory function.

@cheatsheetItem provide(MyValue, {useValue: 41})``provide|useValue Sets or overrides the provider for MyValue to the value 41.