修改示例代码

Signed-off-by: Nwanning.fang <songruirui1@huawei.com>

zh-cn/application-dev/reference/apis/js-apis-application-DataShareExtensionAbility.md

@@ -44,7 +44,8 @@ let DDL_TBL_CREATE = "CREATE TABLE IF NOT EXISTS "
 + " (id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT, age INTEGER, phoneNumber DOUBLE, isStudent BOOLEAN, Binary BINARY)";
 let rdbStore;
 
-onCreate(want: Want, callback: AsyncCallback<void>) {
+export default class DataShareExtAbility extends DataShareExtensionAbility {
+    onCreate(want: Want, callback: AsyncCallback<void>) {
         rdb.getRdbStore(this.context, {
             name: DB_NAME
         }, 1, function (err, data) {
@@ -57,7 +58,8 @@ onCreate(want: Want, callback: AsyncCallback<void>) {
                 callback();
             }
         });
-}
+    }
+};
 ```
 
 ## getFileTypes
@@ -79,11 +81,13 @@ getFileTypes?(uri: string, mimeTypeFilter: string, callback: AsyncCallback&lt;Ar
 **示例：**
 
 ```ts
-getFileTypes(uri: string, mimeTypeFilter: string, callback: AsyncCallback<Array<string>>) {
+export default class DataShareExtAbility extends DataShareExtensionAbility {
+    getFileTypes(uri: string, mimeTypeFilter: string, callback: AsyncCallback<Array<string>>) {
         let err = {"code":0};
         let ret = new Array("type01", "type02", "type03");
         callback(err, ret);
-}
+    }
+};
 ```
 
 ## openFile
@@ -105,11 +109,13 @@ openFile?(uri: string, mode: string, callback: AsyncCallback&lt;number&gt;): voi
 **示例：**
 
 ```ts
-openFile(uri: string, mode: string, callback: AsyncCallback<number>) {
+export default class DataShareExtAbility extends DataShareExtensionAbility {
+    openFile(uri: string, mode: string, callback: AsyncCallback<number>) {
         let err = {"code":0};
         let fd = 0;
         callback(err,fd);
-}
+    }
+};
 ```
 
 ## insert
@@ -131,7 +137,8 @@ insert?(uri: string, valueBucket: ValuesBucket, callback: AsyncCallback&lt;numbe
 **示例：**
 
 ```ts
-insert(uri: string, valueBucket: ValuesBucket, callback: AsyncCallback<number>) {
+export default class DataShareExtAbility extends DataShareExtensionAbility {
+    insert(uri: string, valueBucket: ValuesBucket, callback: AsyncCallback<number>) {
         if (value == null) {
             console.info('invalid valueBuckets');
             return;
@@ -142,7 +149,8 @@ insert(uri: string, valueBucket: ValuesBucket, callback: AsyncCallback<number>)
                 callback(err, ret);
             }
         });
-}
+    }
+};
 ```
 
 ## update
@@ -165,7 +173,8 @@ update?(uri: string, predicates: dataSharePredicates.DataSharePredicates, valueB
 **示例：**
 
 ```ts
-update(uri: string, predicates: dataSharePredicates.DataSharePredicates, valueBucket: ValuesBucket, callback: AsyncCallback<number>) {
+export default class DataShareExtAbility extends DataShareExtensionAbility {
+    update(uri: string, predicates: dataSharePredicates.DataSharePredicates, valueBucket: ValuesBucket, callback: AsyncCallback<number>) {
         if (predicates == null || predicates == undefined) {
             return;
         }
@@ -174,7 +183,8 @@ update(uri: string, predicates: dataSharePredicates.DataSharePredicates, valueBu
                 callback(err, ret);
             }
         });
-}
+    }
+};
 ```
 
 ## delete
@@ -196,7 +206,8 @@ delete?(uri: string, predicates: dataSharePredicates.DataSharePredicates, callba
 **示例：**
 
 ```ts
-delete(uri: string, predicates: dataSharePredicates.DataSharePredicates, callback: AsyncCallback<number>) {
+export default class DataShareExtAbility extends DataShareExtensionAbility {
+    delete(uri: string, predicates: dataSharePredicates.DataSharePredicates, callback: AsyncCallback<number>) {
         if (predicates == null || predicates == undefined) {
             return;
         }
@@ -205,7 +216,8 @@ delete(uri: string, predicates: dataSharePredicates.DataSharePredicates, callbac
                 callback(err, ret);
             }
         });
-}
+    }
+};
 ```
 
 ## query
@@ -228,7 +240,8 @@ query?(uri: string, predicates: dataSharePredicates.DataSharePredicates, columns
 **示例：**
 
 ```ts
-query(uri: string, predicates: dataSharePredicates.DataSharePredicates, columns: Array<string>, callback: AsyncCallback<Object>) {
+export default class DataShareExtAbility extends DataShareExtensionAbility {
+    query(uri: string, predicates: dataSharePredicates.DataSharePredicates, columns: Array<string>, callback: AsyncCallback<Object>) {
         if (predicates == null || predicates == undefined) {
             return;
         }
@@ -240,7 +253,8 @@ query(uri: string, predicates: dataSharePredicates.DataSharePredicates, columns:
                 callback(err, resultSet);
             }
         });
-}
+    }
+};
 ```
 
 ## getType
@@ -261,11 +275,13 @@ getType?(uri: string, callback: AsyncCallback&lt;string&gt;): void
 **示例：**
 
 ```ts
-getType(uri: string, callback: AsyncCallback<string>) {
+export default class DataShareExtAbility extends DataShareExtensionAbility {
+    getType(uri: string, callback: AsyncCallback<string>) {
         let err = {"code":0};
         let ret = "image";
         callback(err, ret);
-}
+    }
+};
 ```
 
 ## BatchInsert
@@ -287,7 +303,8 @@ BatchInsert?(uri: string, valueBuckets: Array&lt;ValuesBucket&gt;, callback: Asy
 **示例：**
 
 ```ts
-batchInsert(uri: string, valueBuckets: Array<ValuesBucket>, callback: AsyncCallback<number>) {
+export default class DataShareExtAbility extends DataShareExtensionAbility {
+    batchInsert(uri: string, valueBuckets: Array<ValuesBucket>, callback: AsyncCallback<number>) {
         if (valueBuckets == null || valueBuckets.length == undefined) {
             console.info('invalid valueBuckets');
             return;
@@ -300,7 +317,8 @@ batchInsert(uri: string, valueBuckets: Array<ValuesBucket>, callback: AsyncCallb
                 }
             });
         });
-}
+    }
+};
 ```
 
 ## normalizeUri
@@ -321,11 +339,13 @@ normalizeUri?(uri: string, callback: AsyncCallback&lt;string&gt;): void
 **示例：**
 
 ```ts
-normalizeUri(uri: string, callback: AsyncCallback<string>) {
+export default class DataShareExtAbility extends DataShareExtensionAbility {
+    normalizeUri(uri: string, callback: AsyncCallback<string>) {
         let err = {"code":0};
         let ret = "normalize+" + uri;
         callback(err, ret);
-}
+    }
+};
 ```
 
 ## denormalizeUri
@@ -346,9 +366,11 @@ denormalizeUri?(uri: string, callback: AsyncCallback&lt;string&gt;): void
 **示例：**
 
 ```ts
-denormalizeUri(uri: string, callback: AsyncCallback<string>) {
+export default class DataShareExtAbility extends DataShareExtensionAbility {
+    denormalizeUri(uri: string, callback: AsyncCallback<string>) {
         let err = {"code":0};
         let ret = "denormalize+" + uri;
         callback(err, ret);
-}
+    }
+};
 ```