fix: typo

2018-08-23 14:39:30 +08:00 · 2018-08-23 14:39:30 +08:00 · 2721708915
parent a43beabdb7
commit 2721708915
1 changed files with 2 additions and 2 deletions
--- a/aio/content/guide/dependency-injection.md
+++ b/aio/content/guide/dependency-injection.md
@ -1199,10 +1199,10 @@ the `HeroesComponent` in the same file,
 If you define the component before the service,
 you'll get a runtime null reference error.

-如果你把 `HeroService` 和 `HeroesComponent` 组合在同一个文件里，
+如果你要把 `HeroService` 和 `HeroesComponent` 组合在同一个文件里，
  **就得把组件定义放在最后面！**
  如果把组件定义在了服务的前面，
-  在运行时抛出空指针错误。
+  在运行时它就会抛出空指针错误。

 <div class="alert is-helpful">