diff --git a/zh-cn/application-dev/quick-start/arkts-environment.md b/zh-cn/application-dev/quick-start/arkts-environment.md
index feba33c01e6e9c58303e65153de87ead8e3f16fe..03feb07cceb1f9aae09e35e46559cac7187a7f9f 100644
--- a/zh-cn/application-dev/quick-start/arkts-environment.md
+++ b/zh-cn/application-dev/quick-start/arkts-environment.md
@@ -35,7 +35,7 @@ Environment是ArkUI框架在应用程序启动时创建的单例对象。它为A
 ```ts
 // 将设备languageCode存入AppStorage中
 Environment.EnvProp('languageCode', 'en');
-let enable = AppStorage.Get('languageCode');
+let enable: undefined = AppStorage.Get<undefined>('languageCode');
 
 @Entry
 @Component