diff --git a/zh-cn/application-dev/device/inputdevice-guidelines.md b/zh-cn/application-dev/device/inputdevice-guidelines.md
index d08fbacfef9c363dfb8b4c206008b05793e5434e..81a808458a668734146a544c67e871913a0a8934 100644
--- a/zh-cn/application-dev/device/inputdevice-guidelines.md
+++ b/zh-cn/application-dev/device/inputdevice-guidelines.md
@@ -16,8 +16,8 @@ import inputDevice from '@ohos.multimodalInput.inputDevice';
 
 | 实例名 | 接口名  | 说明 |
 | ----------- | ------------------------------------------------------------ | -------------------------- |
-| inputDevice | function getDeviceList(callback: AsyncCallback\<Array\<number>>): void; | 获取输入设备列表。 |
-| inputDevice | function getKeyboardType(deviceId: number, callback: AsyncCallback\<KeyboardType>): void; | 获取输入设备的键盘类型。 |
+| inputDevice | function getDeviceList(): Promise\<Array\<number>>; | 获取输入设备列表。 |
+| inputDevice | function getKeyboardType(deviceId: number): Promise\<KeyboardType>; | 获取输入设备的键盘类型。 |
 | inputDevice | function on(type: "change", listener: Callback\<DeviceListener>): void; | 监听输入设备的热插拔事件。 |
 | inputDevice | function off(type: "change", listener?: Callback\<DeviceListener>): void; | 取消监听输入设备的热插拔事件。 |
 
@@ -51,7 +51,7 @@ try {
   // 2.监听设备热插拔
   inputDevice.on("change", (data) => {
     console.log(`Device event info: ${JSON.stringify(data)}`);
-    inputDevice.getKeyboardType(data.deviceId, (error, type) => {
+    inputDevice.getKeyboardType(data.deviceId).then((type) => {
       console.log("The keyboard type is: " + type);
       if (type === inputDevice.KeyboardType.ALPHABETIC_KEYBOARD && data.type == 'add') {
         // 物理键盘已插入
diff --git a/zh-cn/application-dev/reference/apis/js-apis-pointer.md b/zh-cn/application-dev/reference/apis/js-apis-pointer.md
index cb8bab502a388bba94fceba5a648cbb8788cc842..014b704990f690340b4f2a9c206cc08abeb07cb7 100755
--- a/zh-cn/application-dev/reference/apis/js-apis-pointer.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-pointer.md
@@ -122,9 +122,13 @@ isPointerVisible(): Promise&lt;boolean&gt;
 **示例**：
 
 ```js
-pointer.isPointerVisible().then((visible) => {
-  console.log(`Get pointer visible success, visible: ${JSON.stringify(visible)}`);
-});
+try {
+  pointer.isPointerVisible().then((visible) => {
+    console.log(`Get pointer visible success, visible: ${JSON.stringify(visible)}`);
+  });
+} catch (error) {
+  console.log(`Get pointer visible failed, error: ${JSON.stringify(error, [`code`, `message`])}`);
+}
 ```
 
 ## pointer.setPointerSpeed<sup>9+</sup>