Signed-off-by: yangliu <yangliu146@huawei.com>

 Changes to be committed:
	modified:   zh-cn/application-dev/reference/apis/js-apis-data-storage.md

zh-cn/application-dev/reference/apis/js-apis-data-storage.md

@@ -14,7 +14,7 @@ import dataStorage from '@ohos.data.storage'
 ```
 
 ## 系统能力
-SystemCapability.DistributedDataManager.Preference.Core
+SystemCapability.DistributedDataManager.Preferences.Core