mingxihua@huawei.com.cn

Signed-off-by: Nmingxihua <mingxihua@huawei.com>

zh-cn/application-dev/reference/apis/js-apis-ability-dataUriUtils.md

@@ -35,7 +35,7 @@ getId(uri: string): number
 **示例：**
 
 ```ts
-var id = dataUriUtils.getId("com.example.dataUriUtils/1221");
+let id = dataUriUtils.getId("com.example.dataUriUtils/1221");
 ```
 
 
@@ -64,8 +64,8 @@ attachId(uri: string, id: number): string
 **示例：**
 
 ```ts
-var id = 1122;
-var uri = dataUriUtils.attachId(
+let id = 1122;
+let uri = dataUriUtils.attachId(
     "com.example.dataUriUtils",
 	id,
 )
@@ -96,7 +96,7 @@ deleteId(uri: string): string
 **示例：**
 
 ```ts
-var uri = dataUriUtils.deleteId("com.example.dataUriUtils/1221")
+let uri = dataUriUtils.deleteId("com.example.dataUriUtils/1221")
 ```
 
 
@@ -125,8 +125,8 @@ updateId(uri: string, id: number): string
 **示例：**
 
 ```ts
-var id = 1122;
-var uri = dataUriUtils.updateId(
+let id = 1122;
+let uri = dataUriUtils.updateId(
     "com.example.dataUriUtils/1221",
 	id
 )