From 82306cebf76b20eec6f1694998f9d682f908aa02 Mon Sep 17 00:00:00 2001
From: wuyongning <wuyongning@huawei.com>
Date: Tue, 22 Mar 2022 18:15:05 +0800
Subject: [PATCH] update En file

Signed-off-by: wuyongning <wuyongning@huawei.com>
---
 en/device-dev/subsystems/subsys-data-storage-guide.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/en/device-dev/subsystems/subsys-data-storage-guide.md b/en/device-dev/subsystems/subsys-data-storage-guide.md
index 152935dc1a..b04c82592a 100644
--- a/en/device-dev/subsystems/subsys-data-storage-guide.md
+++ b/en/device-dev/subsystems/subsys-data-storage-guide.md
@@ -165,7 +165,7 @@ Use the following APIs to delete a **Preferences** instance or data file.
     Subscribe to data changes and invoke the callback:
     ``` C++
     std::shared_ptr<PreferencesObserver> counter =
-        std::shared_ptr<PreferencesObserver>(new PreferencesObserverCounter());
+        std::make_shared<PreferencesObserverCounter>();
     pref->RegisterObserver(counter); // Register a callback to return data changes.
 
     pref->PutString(PreferencesTest::KEY_TEST_STRING_ELEMENT, "test");
-- 
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