From ba1625c55fd2a8b6a5f6e3e0c00afb1a78e2f518 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=91=9B=E4=BA=9A=E8=8A=B3?= <geyafang@huawei.com>
Date: Sat, 28 May 2022 02:41:00 +0000
Subject: [PATCH] =?UTF-8?q?3.2Beta1=E5=88=86=E6=94=AF=EF=BC=9A=E4=B8=80?=
 =?UTF-8?q?=E8=87=B4=E6=80=A7=E9=97=AE=E9=A2=98=E4=BF=AE=E6=94=B9=20js-api?=
 =?UTF-8?q?s-data-preferences.md=EF=BC=9A=E9=9C=80=E5=90=8C=E6=AD=A5?=
 =?UTF-8?q?=E7=BF=BB=E8=AF=91=20Signed-off-by:=20@ge-yafang=20<geyafang@hu?=
 =?UTF-8?q?awei.com>?=
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---
 .../apis/js-apis-data-preferences.md          | 51 ++++++++++++++++++-
 1 file changed, 50 insertions(+), 1 deletion(-)

diff --git a/zh-cn/application-dev/reference/apis/js-apis-data-preferences.md b/zh-cn/application-dev/reference/apis/js-apis-data-preferences.md
index 6e3a16e1ad..430fed2b85 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-data-preferences.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-data-preferences.md
@@ -262,6 +262,56 @@ promise.then((value) => {
 })
 ```
 
+### getAll
+
+getAll(callback: AsyncCallback&lt;Object&gt;): void;
+
+返回含有所有键值的Object对象。
+
+**系统能力：** SystemCapability.DistributedDataManager.Preferences.Core
+
+**参数：**
+  | 参数名 | 类型 | 必填 | 说明 |
+  | -------- | -------- | -------- | -------- |
+  | callback | AsyncCallback&lt;Object&gt; | 是 | 回调函数。返回含有所有键值的Object对象。 |
+
+**示例：**
+```ts
+preferences.get.getAll(function (err, value) {
+    if (err) {
+        console.info("getAll failed, err: " + err)
+        return
+    }
+    let keys = Object.keys(value)
+    console.info('getAll keys = ' + keys)
+    console.info("getAll object = " + JSON.stringify(value))
+});
+```
+
+### getAll
+
+getAll(): Promise&lt;Object&gt;
+
+返回含有所有键值的Object对象。
+
+**系统能力：** SystemCapability.DistributedDataManager.Preferences.Core
+
+**返回值：**
+  | 类型 | 说明 |
+  | -------- | -------- |
+  | Promise&lt;Object&gt; | Promise对象。返回含有所有键值的Object对象。 |
+
+**示例：**
+```ts
+let promise = preferences.getAll()
+promise.then((value) => {
+    let keys = Object.keys(value)
+    console.info('getAll keys = ' + keys)
+    console.info("getAll object = " + JSON.stringify(value))
+}).catch((err) => {
+    console.info("getAll failed, err: " + err)
+})
+```
 
 ### put
 
@@ -289,7 +339,6 @@ preferences.put('startup', 'auto', function (err) {
 })
 ```
 
-
 ### put
 
 put(key: string, value: ValueType): Promise&lt;void&gt;
-- 
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