diff --git a/zh-cn/application-dev/reference/apis/js-apis-distributed-data.md b/zh-cn/application-dev/reference/apis/js-apis-distributed-data.md
index 5991d007c2b74bd9c6b4d18adc17f6fac73fec70..b24c380f3546c3f3b1e4d2db409cfc98baa6e76e 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-distributed-data.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-distributed-data.md
@@ -270,7 +270,7 @@ const options = {
     kvManager.getKVStore('storeId', options, async function (err, store) {
     console.log('getKVStore success');
     kvStore = store;
-    await kvManager.closeKVStore('appId', 'storeId', kvStore, function (err, data) {
+    kvManager.closeKVStore('appId', 'storeId', kvStore, function (err, data) {
         console.log('closeKVStore success');
     });
     });
@@ -320,7 +320,7 @@ const options = {
     kvManager.getKVStore('storeId', options).then(async (store) => {
     console.log('getKVStore success');
     kvStore = store;
-    await kvManager.closeKVStore('appId', 'storeId', kvStore).then(() => {
+    kvManager.closeKVStore('appId', 'storeId', kvStore).then(() => {
         console.log('closeKVStore success');
     }).catch((err) => {
         console.log('closeKVStore err ' + JSON.stringify(err));
@@ -368,7 +368,7 @@ try {
     kvManager.getKVStore('store', options, async function (err, store) {
         console.log('getKVStore success');
         kvStore = store;
-        await kvManager.deleteKVStore('appId', 'storeId', function (err, data) {
+        kvManager.deleteKVStore('appId', 'storeId', function (err, data) {
             console.log('deleteKVStore success');
         });
     });
@@ -417,7 +417,7 @@ try {
     kvManager.getKVStore('storeId', options).then(async (store) => {
         console.log('getKVStore success');
         kvStore = store;
-        await kvManager.deleteKVStore('appId', 'storeId').then(() => {
+        kvManager.deleteKVStore('appId', 'storeId').then(() => {
             console.log('deleteKVStore success');
         }).catch((err) => {
             console.log('deleteKVStore err ' + JSON.stringify(err));
@@ -704,7 +704,7 @@ try {
     node.appendChild(child1);
     node.appendChild(child2);
     node.appendChild(child3);
-    console.log("appendNode " + node.toJson());
+    console.log("appendNode " + JSON.stringify(node));
     child1 = null;
     child2 = null;
     child3 = null;
@@ -2341,7 +2341,7 @@ try {
     console.log('entries: ' + JSON.stringify(entries));
     kvStore.putBatch(entries, async function (err,data) {
         console.log('putBatch success');
-        await kvStore.getEntries('batch_test_string_key', function (err,entrys) {
+        kvStore.getEntries('batch_test_string_key', function (err,entrys) {
             console.log('getEntries success');
             console.log('entrys.length: ' + entrys.length);
             console.log('entrys[0]: ' + JSON.stringify(entrys[0]));
@@ -2393,7 +2393,7 @@ try {
     console.log('entries: ' + JSON.stringify(entries));
     kvStore.putBatch(entries).then(async (err) => {
         console.log('putBatch success');
-        await kvStore.getEntries('batch_test_string_key').then((entrys) => {
+        kvStore.getEntries('batch_test_string_key').then((entrys) => {
             console.log('getEntries success');
             console.log('PutBatch ' + JSON.stringify(entries));
         }).catch((err) => {
@@ -2445,7 +2445,7 @@ try {
     console.log('entries: ' + JSON.stringify(entries));
     kvStore.putBatch(entries, async function (err,data) {
         console.log('putBatch success');
-        await kvStore.deleteBatch(keys, async function (err,data) {
+        kvStore.deleteBatch(keys, async function (err,data) {
             console.log('deleteBatch success');
         });
     });
@@ -2497,7 +2497,7 @@ try {
     console.log('entries: ' + JSON.stringify(entries));
     kvStore.putBatch(entries).then(async (err) => {
         console.log('putBatch success');
-        await kvStore.deleteBatch(keys).then((err) => {
+        kvStore.deleteBatch(keys).then((err) => {
             console.log('deleteBatch success');
         }).catch((err) => {
             console.log('deleteBatch fail ' + JSON.stringify(err));
@@ -2553,7 +2553,7 @@ try {
         console.log('startTransaction success');
         let entries = putBatchString(10, 'batch_test_string_key');
         console.log('entries: ' + JSON.stringify(entries));
-        await kvStore.putBatch(entries, async function (err,data) {
+        kvStore.putBatch(entries, async function (err,data) {
             console.log('putBatch success');
         });
     });
@@ -3049,7 +3049,7 @@ try {
     }
     kvStore.putBatch(entries, async function (err,data) {
         console.log('putBatch success');
-        await kvStore.getEntries('batch_test_number_key', function (err,entrys) {
+        kvStore.getEntries('batch_test_number_key', function (err,entrys) {
             console.log('getEntries success');
             console.log('entrys.length: ' + entrys.length);
             console.log('entrys[0]: ' + JSON.stringify(entrys[0]));
@@ -3101,7 +3101,7 @@ try {
     console.log('entries: ' + entries);
     kvStore.putBatch(entries).then(async (err) => {
         console.log('putBatch success');
-        await kvStore.getEntries('batch_test_string_key').then((entrys) => {
+        kvStore.getEntries('batch_test_string_key').then((entrys) => {
             console.log('getEntries success');
             console.log('entrys.length: ' + entrys.length);
             console.log('entrys[0]: ' + JSON.stringify(entrys[0]));
@@ -3157,7 +3157,7 @@ try {
         console.log('putBatch success');
         const query = new distributedData.Query();
         query.prefixKey("batch_test");
-        await kvStore.getEntries(query, function (err,entrys) {
+        kvStore.getEntries(query, function (err,entrys) {
             console.log('getEntries success');
             console.log('entrys.length: ' + entrys.length);
             console.log('entrys[0]: ' + JSON.stringify(entrys[0]));
@@ -3193,6 +3193,7 @@ getEntries(query: Query): Promise<Entry[]>
 **示例：**
 
 ```js
+let kvStore;
 try {
     var arr = new Uint8Array([21,31]);
     let entries = [];
@@ -3212,7 +3213,7 @@ try {
         console.log('putBatch success');
         const query = new distributedData.Query();
         query.prefixKey("batch_test");
-        await kvStore.getEntries(query).then((entrys) => {
+        kvStore.getEntries(query).then((entrys) => {
             console.log('getEntries success');
         }).catch((err) => {
             console.log('getEntries fail ' + JSON.stringify(err));
@@ -3262,7 +3263,7 @@ try {
     }
     kvStore.putBatch(entries, async function (err, data) {
         console.log('GetResultSet putBatch success');
-        await kvStore.getResultSet('batch_test_string_key', async function (err, result) {
+        kvStore.getResultSet('batch_test_string_key', async function (err, result) {
             console.log('GetResultSet getResultSet succeed.');
             resultSet = result;
             kvStore.closeResultSet(resultSet, function (err, data) {
@@ -3373,7 +3374,7 @@ try {
         console.log('putBatch success');
         const query = new distributedData.Query();
         query.prefixKey("batch_test");
-        await kvStore.getResultSet(query, async function (err, result) {
+        kvStore.getResultSet(query, async function (err, result) {
             console.log('getResultSet succeed.');
             resultSet = result;
         });
@@ -3547,7 +3548,7 @@ try {
         console.log('putBatch success');
         const query = new distributedData.Query();
         query.prefixKey("batch_test");
-        await kvStore.getResultSize(query, async function (err, resultSize) {
+        kvStore.getResultSize(query, async function (err, resultSize) {
             console.log('getResultSet succeed.');
         });
     });
@@ -3637,12 +3638,12 @@ try {
     kvStore.put(KEY_TEST_STRING_ELEMENT, VALUE_TEST_STRING_ELEMENT, async function (err,data) {
         console.log('put success');
         const deviceid = 'no_exist_device_id';
-        await kvStore.removeDeviceData(deviceid, async function (err,data) {
+        kvStore.removeDeviceData(deviceid, async function (err,data) {
             if (err == undefined) {
                 console.log('removeDeviceData success');
             } else {
                 console.log('removeDeviceData fail');
-                await kvStore.get(KEY_TEST_STRING_ELEMENT, async function (err,data) {
+                kvStore.get(KEY_TEST_STRING_ELEMENT, async function (err,data) {
                     console.log('RemoveDeviceData get success');
                 });
             }
@@ -4046,7 +4047,7 @@ try {
     console.log('entries: ' + entries);
     kvStore.putBatch(entries, async function (err,data) {
         console.log('putBatch success');
-        await kvStore.getEntries('localDeviceId', 'batch_test_string_key', function (err,entrys) {
+        kvStore.getEntries('localDeviceId', 'batch_test_string_key', function (err,entrys) {
             console.log('getEntries success');
             console.log('entrys.length: ' + entrys.length);
             console.log('entrys[0]: ' + JSON.stringify(entrys[0]));
@@ -4099,7 +4100,7 @@ try {
     console.log('entries: ' + entries);
     kvStore.putBatch(entries).then(async (err) => {
         console.log('putBatch success');
-        await kvStore.getEntries('localDeviceId', 'batch_test_string_key').then((entrys) => {
+        kvStore.getEntries('localDeviceId', 'batch_test_string_key').then((entrys) => {
             console.log('getEntries success');
             console.log('entrys.length: ' + entrys.length);
             console.log('entrys[0]: ' + JSON.stringify(entrys[0]));
@@ -4153,11 +4154,10 @@ try {
     console.log('entries: ' + JSON.stringify(entries));
     kvStore.putBatch(entries, async function (err,data) {
         console.log('putBatch success');
-        expect(err == undefined).assertTrue();
         const query = new distributedData.Query();
         query.prefixKey("batch_test");
         query.deviceId('localDeviceId');
-        await kvStore.getEntries(query, function (err,entrys) {
+        kvStore.getEntries(query, function (err,entrys) {
             console.log('getEntries success');
             console.log('entrys.length: ' + entrys.length);
             console.log('entrys[0]: ' + JSON.stringify(entrys[0]));
@@ -4213,7 +4213,7 @@ try {
         console.log('putBatch success');
         const query = new distributedData.Query();
         query.prefixKey("batch_test");
-        await kvStore.getEntries(query).then((entrys) => {
+        kvStore.getEntries(query).then((entrys) => {
             console.log('getEntries success');
         }).catch((err) => {
             console.log('getEntries fail ' + JSON.stringify(err));
@@ -4265,11 +4265,10 @@ try {
     console.log('entries: ' + JSON.stringify(entries));
     kvStore.putBatch(entries, async function (err,data) {
         console.log('putBatch success');
-        expect(err == undefined).assertTrue();
         var query = new distributedData.Query();
         query.deviceId('localDeviceId');
         query.prefixKey("batch_test");
-        await kvStore.getEntries('localDeviceId', query, function (err,entrys) {
+        kvStore.getEntries('localDeviceId', query, function (err,entrys) {
             console.log('getEntries success');
             console.log('entrys.length: ' + entrys.length);
             console.log('entrys[0]: ' + JSON.stringify(entrys[0]));
@@ -4327,7 +4326,7 @@ try {
         var query = new distributedData.Query();
         query.deviceId('localDeviceId');
         query.prefixKey("batch_test");
-        await kvStore.getEntries('localDeviceId', query).then((entrys) => {
+        kvStore.getEntries('localDeviceId', query).then((entrys) => {
             console.log('getEntries success');
         }).catch((err) => {
             console.log('getEntries fail ' + JSON.stringify(err));
@@ -4367,7 +4366,7 @@ try {
     kvStore.getResultSet('localDeviceId', 'batch_test_string_key', async function (err, result) {
         console.log('getResultSet succeed.');
         resultSet = result;
-        await kvStore.closeResultSet(resultSet, function (err, data) {
+        kvStore.closeResultSet(resultSet, function (err, data) {
             console.log('closeResultSet success');
         })
     });
@@ -4459,10 +4458,10 @@ try {
         const query = new distributedData.Query();
         query.prefixKey("batch_test");
         query.deviceId('localDeviceId');
-        await kvStore.getResultSet(query, async function (err, result) {
+        kvStore.getResultSet(query, async function (err, result) {
             console.log('getResultSet succeed.');
             resultSet = result;
-            await kvStore.closeResultSet(resultSet, function (err, data) {
+            kvStore.closeResultSet(resultSet, function (err, data) {
                 console.log('closeResultSet success');
             })
         });
@@ -4575,10 +4574,10 @@ try {
         console.log('putBatch success');
         const query = new distributedData.Query();
         query.prefixKey("batch_test");
-        await kvStore.getResultSet('localDeviceId', query, async function (err, result) {
+        kvStore.getResultSet('localDeviceId', query, async function (err, result) {
             console.log('getResultSet succeed.');
             resultSet = result;
-            await kvStore.closeResultSet(resultSet, function (err, data) {
+            kvStore.closeResultSet(resultSet, function (err, data) {
                 console.log('closeResultSet success');
             })
         });
@@ -4765,7 +4764,7 @@ try {
         const query = new distributedData.Query();
         query.prefixKey("batch_test");
         query.deviceId('localDeviceId');
-        await kvStore.getResultSize(query, async function (err, resultSize) {
+        kvStore.getResultSize(query, async function (err, resultSize) {
             console.log('getResultSet succeed.');
         });
     });
@@ -4868,7 +4867,7 @@ try {
         console.log('putBatch success');
         const query = new distributedData.Query();
         query.prefixKey("batch_test");
-        await kvStore.getResultSize('localDeviceId', query, async function (err, resultSize) {
+        kvStore.getResultSize('localDeviceId', query, async function (err, resultSize) {
             console.log('getResultSet succeed.');
         });
     });
@@ -4959,12 +4958,12 @@ try {
     kvStore.put(KEY_TEST_STRING_ELEMENT, VALUE_TEST_STRING_ELEMENT, async function (err,data) {
         console.log('RemoveDeviceData  put success');
         const deviceid = 'no_exist_device_id';
-        await kvStore.removeDeviceData(deviceid, async function (err,data) {
+        kvStore.removeDeviceData(deviceid, async function (err,data) {
             if (err == undefined) {
                 console.log('removeDeviceData success');
             } else {
                 console.log('removeDeviceData fail');
-                await kvStore.get('localDeviceId', KEY_TEST_STRING_ELEMENT, async function (err,data) {
+                kvStore.get('localDeviceId', KEY_TEST_STRING_ELEMENT, async function (err,data) {
                     console.log('RemoveDeviceData get success');
                 });
             }
@@ -5082,6 +5081,7 @@ on(event: 'syncComplete', syncCallback: Callback<Array<[string, number]&gt
 **示例：**
 
 ```js
+let kvStore;
 const KEY_TEST_FLOAT_ELEMENT = 'key_test_float';
 const VALUE_TEST_FLOAT_ELEMENT = 321.12;
 try {