Merge branch 'master' of gitee.com:openharmony/docs into master

Signed-off-by: N田雨 <tianyu55@huawei.com>

CODEOWNERS

@@ -144,6 +144,8 @@ zh-cn/application-dev/telephony/ @zengyawen
 zh-cn/application-dev/dfx/ @zengyawen
 zh-cn/application-dev/database/ @ge-yafang
 zh-cn/application-dev/napi/drawing_guidelines.md @ge-yafang
+zh-cn/application-dev/napi/native-window-guidelines.md @ge-yafang
+zh-cn/application-dev/napi/mindspore-lite-guidelines.md @ge-yafang
 zh-cn/application-dev/napi/rawfile_guidelines.md @HelloCrease
 zh-cn/application-dev/background-agent-scheduled-reminder/ @RayShih
 zh-cn/application-dev/background-task-management/ @RayShih
@@ -165,10 +167,9 @@ zh-cn/application-dev/reference/arkui-ts/ @HelloCrease
 zh-cn/application-dev/reference/native-apis @RayShih
 zh-cn/application-dev/reference/native-lib @RayShih
 zh-cn/application-dev/quick-start/start-overview.md @ge-yafang
-zh-cn/application-dev/quick-start/start-with-ets.md @ge-yafang
-zh-cn/application-dev/quick-start/start-with-ets-low-code.md @ge-yafang
-zh-cn/application-dev/quick-start/start-with-js.md @ge-yafang
-zh-cn/application-dev/quick-start/start-with-js-low-code.md @ge-yafang
+zh-cn/application-dev/quick-start/start-with-ets-stage.md @ge-yafang
+zh-cn/application-dev/quick-start/start-with-ets-fa.md @ge-yafang
+zh-cn/application-dev/quick-start/start-with-js-fa.md @ge-yafang
 zh-cn/application-dev/quick-start/deveco-studio-user-guide-for-openharmony.md @ge-yafang
 zh-cn/application-dev/quick-start/package-structure.md @RayShih
 zh-cn/application-dev/quick-start/basic-resource-file-categories.md @RayShih

en/application-dev/connectivity/http-request.md

@@ -12,7 +12,7 @@ To use related APIs, you must declare the **ohos.permission.INTERNET** permissio
 
 For details about how to apply for permissions, see [Access Control Development](../security/accesstoken-guidelines.md).
 
-The following table describes the related APIs.
+The following table provides only a simple description of the related APIs. For details, see [API Reference](../reference/apis/js-apis-http.md).
 
 | API                                       | Description                                               |
 | ----------------------------------------- | --------------------------------------------------------- |

en/application-dev/device/device-location-overview.md

@@ -15,15 +15,18 @@ Your application can call location-specific APIs to obtain the location informat
 Location awareness helps determine where a mobile device locates. The system identifies the location of a mobile device with its coordinates, and uses location technologies such as Global Navigation Satellite System (GNSS) and network positioning (for example, base station positioning or WLAN/Bluetooth positioning) to provide diverse location-based services. These advanced location technologies make it possible to obtain the accurate location of the mobile device, regardless of whether it is indoors or outdoors.
 
 - **Coordinate**
+
   A coordinate describes a location on the earth using the longitude and latitude in reference to the World Geodetic Coordinate System 1984.
 
 - **GNSS positioning**
   GNSS positioning locates a mobile device by using the location algorithm offered by the device chip to compute the location information provided by the Global Navigation Satellite System, for example, GPS, GLONASS, BeiDou, and Galileo. Whichever positioning system will be used during the location process depends on a hardware capability of the device.
 
 - **Base station positioning**
+
   Base station positioning estimates the current location of a mobile device based on the location of the resident base station in reference to the neighboring base stations. This technology provides only a low accuracy and requires access to the cellular network.
 
 - **WLAN or Bluetooth positioning**
+
   WLAN or Bluetooth positioning estimates the current location of a mobile device based on the locations of WLANs and Bluetooth devices that can be discovered by the device. The location accuracy of this technology depends on the distribution of fixed WLAN access points (APs) and Bluetooth devices around the device. A high density of WLAN APs and Bluetooth devices can produce a more accurate location result than base station positioning. This technology also requires access to the network.
 
 

en/application-dev/device/usb-guidelines.md

@@ -38,7 +38,7 @@ You can set a USB device as the USB host to connect to other USB devices for dat
     // Import the USB API package.
     import usb from '@ohos.usb';
     // Obtain the USB device list.
-    var deviceList = usb.getDevices();
+    let deviceList = usb.getDevices();
     /*
     Example deviceList structure
     [
@@ -81,21 +81,21 @@ You can set a USB device as the USB host to connect to other USB devices for dat
                     number: 1,
                     type: 3,
                     interfaceId: 0,
-                  },
-                ],
-              },
-            ],
-          },
-        ],
-      },
-    ],
+                 }
+               ]
+             }
+           ]
+         }
+       ]
+     }
+   ]
     */
     ```
 
 2.  Obtain the device operation permissions.
 
     ```js
-    var deviceName = deviceList[0].name;
+    let deviceName = deviceList[0].name;
     // Request the permissions to operate a specified device.
     usb.requestRight(deviceName).then(hasRight => {
       console.info("usb device request right result: " + hasRight);
@@ -108,7 +108,7 @@ You can set a USB device as the USB host to connect to other USB devices for dat
 
     ```js
     // Open the device, and obtain the USB device pipe for data transfer.
-    var pipe = usb.connectDevice(deviceList[0]);
+    let pipe = usb.connectDevice(deviceList[0]);
     /*
     Claim the corresponding interface from deviceList.
     interface1 must be one present in the device configuration.
@@ -127,7 +127,7 @@ You can set a USB device as the USB host to connect to other USB devices for dat
     usb.bulkTransfer(pipe, inEndpoint, dataUint8Array, 15000).then(dataLength => {
     if (dataLength >= 0) {
       console.info("usb readData result Length : " + dataLength);
-      var resultStr = this.ab2str(dataUint8Array); // Convert uint8 data into a string.
+      let resultStr = this.ab2str(dataUint8Array); // Convert uint8 data into a string.
       console.info("usb readData buffer : " + resultStr);
     } else {
       console.info("usb readData failed : " + dataLength);

en/application-dev/dfx/hiappevent-guidelines.md

@@ -12,12 +12,10 @@ The following table provides only a brief description of related APIs. For detai
 
 **Table 1** APIs for application event logging
 
-| API                                                      | Description                                                        |
-| ------------------------------------------------------------ | ------------------------------------------------------------ |
-| write(string eventName, EventType type, object keyValues, AsyncCallback\<void> callback): void | Logs application events in asynchronous mode. This API uses an asynchronous callback to return the result.        |
-| write(string eventName, EventType type, object keyValues): Promise\<void> | Logs application events in asynchronous mode. This API uses a promise to return the result.         |
-| write(AppEventInfo info, AsyncCallback\<void> callback): void | Logs application events by domain in asynchronous mode. This API uses an asynchronous callback to return the result.|
-| write(AppEventInfo info): Promise\<void>                     | Logs application events by domain in asynchronous mode. This API uses a promise to return the result.|
+| API                                                      | Description                                                |
+| ------------------------------------------------------------ | ---------------------------------------------------- |
+| write(AppEventInfo info, AsyncCallback\<void> callback): void | Logs application events in asynchronous mode. This API uses an asynchronous callback to return the result.|
+| write(AppEventInfo info): Promise\<void>                     | Logs application events in asynchronous mode. This API uses a promise to return the result. |
 
 When an asynchronous callback is used, the return value can be processed directly in the callback.
 
@@ -84,6 +82,7 @@ The following uses a one-time event watcher as an example to illustrate the deve
              .fontWeight(FontWeight.Bold)
    
            Button("1 writeTest").onClick(()=>{
+             // Perform event logging based on the input event parameters.
              hiAppEvent.write({
                domain: "test_domain",
                name: "test_event",
@@ -100,6 +99,7 @@ The following uses a one-time event watcher as an example to illustrate the deve
            })
    
            Button("2 addWatcherTest").onClick(()=>{
+             // Add an event watcher based on the input subscription parameters.
              hiAppEvent.addWatcher({
                name: "watcher1",
                appEventFilters: [{ domain: "test_domain" }],
@@ -109,17 +109,23 @@ The following uses a one-time event watcher as an example to illustrate the deve
                  timeOut: 2
                },
                onTrigger: function (curRow, curSize, holder) {
+                 // If the holder object is null, return an error after recording it in the log.
                  if (holder == null) {
                    console.error("HiAppEvent holder is null");
                    return;
                  }
+                 // Set the size threshold to 1,000 bytes for obtaining an event package.
+                 holder.setSize(1000);
                  let eventPkg = null;
+                 // Obtain the event package based on the configured size threshold. If returned event package is null, all event data has been obtained.
                  while ((eventPkg = holder.takeNext()) != null) {
-                   console.info("HiAppEvent eventPkg.packageId=" + eventPkg.packageId);
-                   console.info("HiAppEvent eventPkg.row=" + eventPkg.row);
-                   console.info("HiAppEvent eventPkg.size=" + eventPkg.size);
+                   // Parse the obtained event package and display the result on the Log page.
+                   console.info('HiAppEvent eventPkg.packageId=' + eventPkg.packageId);
+                   console.info('HiAppEvent eventPkg.row=' + eventPkg.row);
+                   console.info('HiAppEvent eventPkg.size=' + eventPkg.size);
+                   // Traverse and parse event string arrays in the obtained event package.
                    for (const eventInfo of eventPkg.data) {
-                     console.info("HiAppEvent eventPkg.data=" + eventInfo);
+                     console.info('HiAppEvent eventPkg.data=' + eventInfo);
                    }
                  }
                }
@@ -127,6 +133,7 @@ The following uses a one-time event watcher as an example to illustrate the deve
            })
    
            Button("3 removeWatcherTest").onClick(()=>{
+             // Remove the specified event watcher.
              hiAppEvent.removeWatcher({
                name: "watcher1"
              })

en/application-dev/faqs/faqs-connectivity.md

@@ -19,7 +19,7 @@ Applicable to: OpenHarmony SDK 3.2.2.5, stage model of API version 9
 
 Applicable to: OpenHarmony SDK 3.2.2.5, stage model of API version 9
 
-Error code 28 refers to **CURLE_OPERATION_TIMEDOUT**, which means a libcurl library operation timeout. For details, see any HTTP status code description available.
+Error code 28 refers to **CURLE_OPERATION_TIMEDOUT**, which means a cURL operation timeout. For details, see any HTTP status code description available.
 
 Reference: [Development Guide](https://gitee.com/openharmony/docs/blob/master/en/application-dev/reference/apis/js-apis-http.md#httpresponse) and [Curl Error Codes](https://curl.se/libcurl/c/libcurl-errors.html)
 

en/application-dev/napi/Readme-EN.md

@@ -4,5 +4,6 @@
 - [Drawing Development](drawing-guidelines.md)
 - [Raw File Development](rawfile-guidelines.md)
 - [Native Window Development](native-window-guidelines.md)
+- [Using MindSpore Lite for Model Inference](native-window-guidelines.md)
 
 

en/application-dev/napi/mindspore-lite-guidelines.md

+# Using MindSpore Lite for Model Inference
+
+## When to Use
+
+MindSpore Lite is an AI engine that provides AI model inference for different hardware devices. It has been used in a wide range of fields, such as image classification, target recognition, facial recognition, and character recognition.
+
+This document describes the general development process for MindSpore Lite model inference.
+
+## Basic Concepts
+
+Before getting started, you need to understand the following basic concepts:
+
+**Tensor**: a special data structure that is similar to arrays and matrices. It is a basic data structure used in MindSpore Lite network operations.
+
+**Float16 inference**: a mode in which Float16 is used for inference. Float16, also called half-precision, uses 16 bits to represent a number. 
+
+
+
+## Available APIs
+APIs involved in MindSpore Lite model inference are categorized into context APIs, model APIs, and tensor APIs.
+### Context APIs
+
+| API       | Description       |
+| ------------------ | ----------------- |
+|OH_AI_ContextHandle OH_AI_ContextCreate()|Creates a context object.|
+|void OH_AI_ContextSetThreadNum(OH_AI_ContextHandle context, int32_t thread_num)|Sets the number of runtime threads.|
+| void OH_AI_ContextSetThreadAffinityMode(OH_AI_ContextHandle context, int mode)|Sets the affinity mode for binding runtime threads to CPU cores, which are categorized into little cores and big cores depending on the CPU frequency.|
+|OH_AI_DeviceInfoHandle OH_AI_DeviceInfoCreate(OH_AI_DeviceType device_type)|Creates a runtime device information object.|
+|void OH_AI_ContextDestroy(OH_AI_ContextHandle *context)|Destroys a context object.|
+|void OH_AI_DeviceInfoSetEnableFP16(OH_AI_DeviceInfoHandle device_info, bool is_fp16)|Sets whether to enable float16 inference. This function is available only for CPU and GPU devices.|
+|void OH_AI_ContextAddDeviceInfo(OH_AI_ContextHandle context, OH_AI_DeviceInfoHandle device_info)|Adds a runtime device information object.|
+
+### Model APIs
+
+| API       | Description       |
+| ------------------ | ----------------- |
+|OH_AI_ModelHandle OH_AI_ModelCreate()|Creates a model object.|
+|OH_AI_Status OH_AI_ModelBuildFromFile(OH_AI_ModelHandle model, const char *model_path,OH_AI_ModelType odel_type, const OH_AI_ContextHandle model_context)|Loads and builds a MindSpore model from a model file.|
+|void OH_AI_ModelDestroy(OH_AI_ModelHandle *model)|Destroys a model object.|
+
+### Tensor APIs
+
+| API       | Description       |
+| ------------------ | ----------------- |
+|OH_AI_TensorHandleArray OH_AI_ModelGetInputs(const OH_AI_ModelHandle model)|Obtains the input tensor array structure of a model.|
+|int64_t OH_AI_TensorGetElementNum(const OH_AI_TensorHandle tensor)|Obtains the number of tensor elements.|
+|const char *OH_AI_TensorGetName(const OH_AI_TensorHandle tensor)|Obtains the name of a tensor.|
+|OH_AI_DataType OH_AI_TensorGetDataType(const OH_AI_TensorHandle tensor)|Obtains the tensor data type.|
+|void *OH_AI_TensorGetMutableData(const OH_AI_TensorHandle tensor)|Obtains the pointer to variable tensor data.|
+
+## How to Develop
+The following figure shows the development process for MindSpore Lite model inference.
+
+**Figure 1** Development process for MindSpore Lite model inference
+![how-to-use-mindspore-lite](figures/01.png)
+
+The development process consists of the following main steps:
+
+1. Prepare the required model.
+
+    The required model can be downloaded directly or obtained using the model conversion tool.
+  
+     - If the downloaded model is in the `.ms` format, you can use it directly for inference. The following uses the **mobilenetv2.ms** model as an example.
+     - If the downloaded model uses a third-party framework, such as TensorFlow, TensorFlow Lite, Caffe, or ONNX, you can use the [model conversion tool](https://www.mindspore.cn/lite/docs/en/r1.5/use/benchmark_tool.html) to convert it to the `.ms` format.
+
+2. Create a context, and set parameters such as the number of runtime threads and device type.
+  
+    ```c
+    // Create a context, and set the number of runtime threads to 2 and the thread affinity mode to 1 (big cores first).
+    OH_AI_ContextHandle context = OH_AI_ContextCreate();
+    if (context == NULL) {
+      printf("OH_AI_ContextCreate failed.\n");
+      return OH_AI_STATUS_LITE_ERROR;
+    }
+    const int thread_num = 2;
+    OH_AI_ContextSetThreadNum(context, thread_num);
+    OH_AI_ContextSetThreadAffinityMode(context, 1);
+    // Set the device type to CPU, and disable Float16 inference.
+    OH_AI_DeviceInfoHandle cpu_device_info = OH_AI_DeviceInfoCreate(OH_AI_DEVICETYPE_CPU);
+    if (cpu_device_info == NULL) {
+      printf("OH_AI_DeviceInfoCreate failed.\n");
+      OH_AI_ContextDestroy(&context);
+      return OH_AI_STATUS_LITE_ERROR;
+    }
+    OH_AI_DeviceInfoSetEnableFP16(cpu_device_info, false);
+    OH_AI_ContextAddDeviceInfo(context, cpu_device_info);
+    ```
+
+3. Create, load, and build the model.
+
+    Call **OH_AI_ModelBuildFromFile** to load and build the model.
+
+    In this example, the **argv[1]** parameter passed to **OH_AI_ModelBuildFromFile** indicates the specified model file path.
+
+    ```c
+    // Create a model.
+    OH_AI_ModelHandle model = OH_AI_ModelCreate();
+    if (model == NULL) {
+      printf("OH_AI_ModelCreate failed.\n");
+      OH_AI_ContextDestroy(&context);
+      return OH_AI_STATUS_LITE_ERROR;
+    }
+
+    // Load and build the model. The model type is OH_AI_ModelTypeMindIR.
+    int ret = OH_AI_ModelBuildFromFile(model, argv[1], OH_AI_ModelTypeMindIR, context);
+    if (ret != OH_AI_STATUS_SUCCESS) {
+      printf("OH_AI_ModelBuildFromFile failed, ret: %d.\n", ret);
+      OH_AI_ModelDestroy(&model);
+      return ret;
+    }
+    ```
+
+4. Input data.
+ 
+    Before executing model inference, you need to populate data to the input tensor. In this example, random data is used to populate the model.
+
+    ```c
+    // Obtain the input tensor.
+    OH_AI_TensorHandleArray inputs = OH_AI_ModelGetInputs(model);
+    if (inputs.handle_list == NULL) {
+      printf("OH_AI_ModelGetInputs failed, ret: %d.\n", ret);
+      OH_AI_ModelDestroy(&model);
+      return ret;
+    }
+    // Use random data to populate the tensor.
+    ret = GenerateInputDataWithRandom(inputs);
+    if (ret != OH_AI_STATUS_SUCCESS) {
+      printf("GenerateInputDataWithRandom failed, ret: %d.\n", ret);
+      OH_AI_ModelDestroy(&model);
+      return ret;
+    }
+   ```
+
+5. Execute model inference.
+
+    Call **OH_AI_ModelPredict** to perform model inference.
+
+    ```c
+    // Execute model inference.
+    OH_AI_TensorHandleArray outputs;
+    ret = OH_AI_ModelPredict(model, inputs, &outputs, NULL, NULL);
+    if (ret != OH_AI_STATUS_SUCCESS) {
+      printf("OH_AI_ModelPredict failed, ret: %d.\n", ret);
+      OH_AI_ModelDestroy(&model);
+      return ret;
+    }
+    ```
+
+6. Obtain the output.
+
+    After model inference is complete, you can obtain the inference result through the output tensor.
+
+    ```c
+    // Obtain the output tensor and print the information.
+    for (size_t i = 0; i < outputs.handle_num; ++i) {
+      OH_AI_TensorHandle tensor = outputs.handle_list[i];
+      int64_t element_num = OH_AI_TensorGetElementNum(tensor);
+      printf("Tensor name: %s, tensor size is %zu ,elements num: %lld.\n", OH_AI_TensorGetName(tensor),
+            OH_AI_TensorGetDataSize(tensor), element_num);
+      const float *data = (const float *)OH_AI_TensorGetData(tensor);
+      printf("output data is:\n");
+      const int max_print_num = 50;
+      for (int j = 0; j < element_num && j <= max_print_num; ++j) {
+        printf("%f ", data[j]);
+      }
+      printf("\n");
+    }
+    ```
+
+7. Destroy the model.
+
+    If the MindSpore Lite inference framework is no longer needed, you need to destroy the created model.
+
+    ```c
+    // Destroy the model.
+    OH_AI_ModelDestroy(&model);
+    ```
+
+## Verification
+
+1. Compile **CMakeLists.txt**.
+
+    ```cmake
+    cmake_minimum_required(VERSION 3.14)
+    project(Demo)
+
+    add_executable(demo main.c)
+
+    target_link_libraries(
+            demo
+            mindspore-lite.huawei
+            pthread
+            dl
+    )
+    ```
+   - To use ohos-sdk for cross compilation, you need to set the native toolchain path for the CMake tool as follows: `-DCMAKE_TOOLCHAIN_FILE="/xxx/ohos-sdk/linux/native/build/cmake/ohos.toolchain.cmake"`.
+    
+   - The toolchain builds a 64-bit application by default. To build a 32-bit application, add the following configuration: `-DOHOS_ARCH="armeabi-v7a"`.
+
+2. Run the CMake tool.
+
+    - Use hdc_std to connect to the RK3568 development board and put **demo** and **mobilenetv2.ms** to the same directory on the board.
+    - Run the hdc_std shell command to access the development board, go to the directory where **demo** is located, and run the following command:
+
+    ```shell
+    ./demo mobilenetv2.ms
+    ```
+
+    The inference is successful if the output is similar to the following:
+
+    ```shell
+    # ./QuickStart ./mobilenetv2.ms                                            
+    Tensor name: Softmax-65, tensor size is 4004 ,elements num: 1001.
+    output data is:
+    0.000018 0.000012 0.000026 0.000194 0.000156 0.001501 0.000240 0.000825 0.000016 0.000006 0.000007 0.000004 0.000004 0.000004 0.000015 0.000099 0.000011 0.000013 0.000005 0.000023 0.000004 0.000008 0.000003 0.000003 0.000008 0.000014 0.000012 0.000006 0.000019 0.000006 0.000018 0.000024 0.000010 0.000002 0.000028 0.000372 0.000010 0.000017 0.000008 0.000004 0.000007 0.000010 0.000007 0.000012 0.000005 0.000015 0.000007 0.000040 0.000004 0.000085 0.000023 
+    ```

en/application-dev/reference/apis/js-apis-call.md

@@ -827,7 +827,7 @@ call.reject(1, (error, data) => {
 
 ## call.reject<sup>7+</sup>
 
-reject\(callId: number, options: RejectMessageOption, callback: AsyncCallback<void\>\): void
+reject\(callId: number, options: RejectMessageOptions, callback: AsyncCallback<void\>\): void
 
 Rejects a call based on the specified call ID and options. This API uses an asynchronous callback to return the result.
 

en/application-dev/reference/apis/js-apis-contact.md

@@ -202,8 +202,8 @@ Updates a contact based on the specified contact information and attributes. Thi
   contact.updateContact({
       name: {fullName: 'xxx'},
       phoneNumbers: [{phoneNumber: '138xxxxxxxx'}]
-  },{
-      attributes:[contact.Attribute.ATTR_EMAIL, contact.Attribute.ATTR_NAME]
+  }, {
+      attributes: [contact.Attribute.ATTR_EMAIL, contact.Attribute.ATTR_NAME]
   }, (err) => {
       if (err) {
           console.log('updateContact callback: err->${JSON.stringify(err)}');
@@ -432,7 +432,7 @@ Queries my card based on the specified contact attributes. This API uses an asyn
 
   ```js
   contact.queryMyCard({
-      attributes:['ATTR_EMAIL', 'ATTR_NAME']
+      attributes: [contact.Attribute.ATTR_EMAIL, contact.Attribute.ATTR_NAME]
   }, (err, data) => {
       if (err) {
           console.log(`queryMyCard callback: err->${JSON.stringify(err)}`);
@@ -469,7 +469,7 @@ Queries my card based on the specified contact attributes. This API uses a promi
 
   ```js
   let promise = contact.queryMyCard({
-      attributes:['ATTR_EMAIL', 'ATTR_NAME']
+      attributes: [contact.Attribute.ATTR_EMAIL, contact.Attribute.ATTR_NAME]
   });
   promise.then((data) => {
       console.log(`queryMyCard success: data->${JSON.stringify(data)}`);
@@ -487,7 +487,7 @@ Selects a contact. This API uses an asynchronous callback to return the result.
 
 **Permission required**: ohos.permission.READ_CONTACTS
 
-**System capability**: SystemCapability.Applications.ContactsData
+**System capability**: SystemCapability.Applications.Contacts
 
 **Parameters**
 
@@ -516,7 +516,7 @@ Selects a contact. This API uses a promise to return the result.
 
 **Permission required**: ohos.permission.READ_CONTACTS
 
-**System capability**: SystemCapability.Applications.ContactsData
+**System capability**: SystemCapability.Applications.Contacts
 
 **Return Value**
 

en/application-dev/reference/apis/js-apis-hiappevent.md

@@ -3,6 +3,7 @@
 This module provides the application event logging functions, such as writing application events to the event file and managing the event logging configuration.
 
 > **NOTE**
+> 
 > The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.
 
 
@@ -18,11 +19,11 @@ Before using application event logging, you need to understand the requirements
 
 **Event Domain**
 
-An event domain is a string that contains a maximum of 32 characters, including digits (0 to 9), letters (a to z), and underscores (_). It cannot start with an underscore (_).
+An event domain is a string that contains a maximum of 32 characters, including digits (0 to 9), letters (a to z), and underscores (\_). It cannot start with an underscore (\_).
 
 **Event Name**
 
-An event name is a string that contains a maximum of 48 characters, including digits (0 to 9), letters (a to z), and underscores (_). It cannot start with an underscore (_).
+An event name is a string that contains a maximum of 48 characters, including digits (0 to 9), letters (a to z), and underscores (\_). It cannot start with an underscore (\_).
 
 **Event Type**
 
@@ -32,7 +33,7 @@ An event type is an enumerated value of [EventType](#eventtype).
 
 An event parameter is an object in key-value pair format, where the key is the parameter name and the value is the parameter value. The requirements are as follows:
 
-- The parameter name is a string that contains a maximum of 16 characters, including digits (0 to 9), letters (a to z), and underscores (_). It cannot start or end with an underscore (_).
+- The parameter name is a string that contains a maximum of 16 characters, including digits (0 to 9), letters (a to z), and underscores (\_). It cannot start or end with an underscore (\_).
 - The parameter value is a string, number, boolean, or array.
 - When the parameter value is a string, its maximum length is 8*1024 characters. If this limit is exceeded, excess characters will be truncated.
 - When the parameter value is an array, the elements in the array must be of the same type, which can only be string, number, or boolean. In addition, the number of elements must be less than 100. If this limit is exceeded, excess elements will be discarded.
@@ -404,12 +405,30 @@ Defines a subscription data holder for processing subscription events.
 
 **System capability**: SystemCapability.HiviewDFX.HiAppEvent
 
+### constructor<sup>9+</sup>
+
+constructor(watcherName: string);
+
+A constructor used to create a **holder** object. It is called automatically when a **Watcher** object is added.
+
+**System capability**: SystemCapability.HiviewDFX.HiAppEvent
+
+**Example**
+
+```js
+let holder = hiAppEvent.addWatcher({
+    name: "watcher",
+});
+```
+
 ### setSize<sup>9+</sup>
 
 setSize(size: number): void
 
 Sets the data size threshold for fetching an application event package. The default value is **512*1024**, in bytes.
 
+**System capability**: SystemCapability.HiviewDFX.HiAppEvent
+
 **Example**
 
 ```js
@@ -425,6 +444,8 @@ takeNext(): [AppEventPackage](#appeventpackage9)
 
 Extracts subscription event data based on the configured data size threshold. If all subscription event data has been extracted, **null** will be returned.
 
+**System capability**: SystemCapability.HiviewDFX.HiAppEvent
+
 **Example**
 
 ```js

en/application-dev/reference/apis/js-apis-hidebug.md

 # HiDebug
 
-> **NOTE**<br>
+> **NOTE**
+> 
 > The initial APIs of this module are supported since API version 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.
 
 You can run the hidebug command to obtain the memory usage of an application, including the static heap memory (native heap) and proportional set size (PSS) occupied by the application process. You can also export VM memory slices and collect VM CPU profiling data.
@@ -16,7 +17,7 @@ import hidebug from '@ohos.hidebug';
 
 getNativeHeapSize(): bigint
 
-Obtains the total size of the native heap memory.
+Obtains the total size of the heap memory of this application.
 
 This API is defined but not implemented in OpenHarmony 3.1 Release.
 
@@ -26,84 +27,80 @@ This API is defined but not implemented in OpenHarmony 3.1 Release.
 
 | Type  | Description                       |
 | ------ | --------------------------- |
-| bigint | Total size of the native heap memory, in kB.|
+| bigint | Total size of the heap memory of this application, in kB.|
 
 
 **Example**
-
-```js
-let nativeHeapSize = hidebug.getNativeHeapSize();
-```
+  ```js
+  let nativeHeapSize = hidebug.getNativeHeapSize();
+  ```
 
 
 ## hidebug.getNativeHeapAllocatedSize
 
 getNativeHeapAllocatedSize(): bigint
 
-Obtains the size of the allocated native heap memory.
+Obtains the size of the allocated heap memory of this application.
 
 This API is defined but not implemented in OpenHarmony 3.1 Release.
 
 **System capability**: SystemCapability.HiviewDFX.HiProfiler.HiDebug
 
-**Return value**
 
+**Return value**
 | Type  | Description                             |
 | ------ | --------------------------------- |
-| bigint | Size of the allocated native heap memory, in kB.|
+| bigint | Size of the allocated heap memory of this application, in kB.|
 
 
 **Example**
-
-```js
-let nativeHeapAllocatedSize = hidebug.getNativeHeapAllocatedSize();
-```
+  ```js
+  let nativeHeapAllocatedSize = hidebug.getNativeHeapAllocatedSize();
+  ```
 
 
 ## hidebug.getNativeHeapFreeSize
 
 getNativeHeapFreeSize(): bigint
 
-Obtains the size of the free native heap memory.
+Obtains the size of the free heap memory of this application.
 
 This API is defined but not implemented in OpenHarmony 3.1 Release.
 
 **System capability**: SystemCapability.HiviewDFX.HiProfiler.HiDebug
 
-**Return value**
 
+**Return value**
 | Type  | Description                           |
 | ------ | ------------------------------- |
-| bigint | Size of the free native heap memory, in kB.|
+| bigint | Size of the free heap memory of this application, in kB.|
 
 
 **Example**
-
-```js
-let nativeHeapFreeSize = hidebug.getNativeHeapFreeSize();
-```
+  ```js
+  let nativeHeapFreeSize = hidebug.getNativeHeapFreeSize();
+  ```
 
 
 ## hidebug.getPss
 
 getPss(): bigint
 
-Obtains the PSS of this process.
+Obtains the size of the used physical memory of this process.
 
 **System capability**: SystemCapability.HiviewDFX.HiProfiler.HiDebug
 
-**Return value**
 
+**Return value**
 | Type  | Description                     |
 | ------ | ------------------------- |
-| bigint | PSS of the process, in kB.|
+| bigint | Used physical memory of this process, in kB.|
 
 
 **Example**
-
-```js
-let pss = hidebug.getPss();
-```
+  ```js
+  let pss = hidebug.getPss();
+  ```
 
 
 ## hidebug.getSharedDirty
@@ -114,18 +111,17 @@ Obtains the size of the shared dirty memory of this process.
 
 **System capability**: SystemCapability.HiviewDFX.HiProfiler.HiDebug
 
-**Return value**
 
+**Return value**
 | Type  | Description                      |
 | ------ | -------------------------- |
-| bigint | Size of the shared dirty memory of the process, in kB.|
+| bigint | Size of the shared dirty memory of this process, in kB.|
 
 
 **Example**
-  
-```js
-let sharedDirty = hidebug.getSharedDirty();
-```
+  ```js
+  let sharedDirty = hidebug.getSharedDirty();
+  ```
 
 ## hidebug.getPrivateDirty<sup>9+<sup>
 
@@ -135,11 +131,11 @@ Obtains the size of the private dirty memory of this process.
 
 **System capability**: SystemCapability.HiviewDFX.HiProfiler.HiDebug
 
-**Return value**
 
+**Return value**
 | Type  | Description                      |
 | ------ | -------------------------- |
-| bigint | Size of the private dirty memory of the process, in kB.|
+| bigint | Size of the private dirty memory of this process, in kB.|
 
 
 **Example**
@@ -157,18 +153,17 @@ For example, if the CPU usage is **50%**, **0.5** is returned.
 
 **System capability**: SystemCapability.HiviewDFX.HiProfiler.HiDebug
 
-**Return value**
 
+**Return value**
 | Type  | Description                      |
 | ------ | -------------------------- |
-| number | CPU usage of the process.|
+| number | CPU usage of this process.|
 
 
 **Example**
-
-```js
-let cpuUsage = hidebug.getCpuUsage();
-```
+  ```js
+  let cpuUsage = hidebug.getCpuUsage();
+  ```
 
 ## hidebug.startProfiling
 
@@ -195,6 +190,7 @@ hidebug.stopProfiling();
 ```
 
 
+
 ## hidebug.stopProfiling
 
 stopProfiling() : void
@@ -225,7 +221,7 @@ Exports data from the specified heap file.
 
 | Name  | Type  | Mandatory | Description                                                        |
 | -------- | ------ | ---- | ------------------------------------------------------------ |
-| filename | string | Yes  | User-defined heap file name. The `filename.heapsnapshot` file is generated in the `files` directory of the app based on the specified `filename`.|
+| filename | string | Yes  | User-defined heap file name. The `filename.heapsnapshot` file is generated in the `files` directory of the application based on the specified `filename`.|
 
 **Example**
 
@@ -250,7 +246,6 @@ This is a system API and cannot be called by third-party applications.
 | serviceid | number | Yes  | ID of the system service. |
 
 **Return value**
-
 | Type  | Description                      |
 | ------ | -------------------------- |
 | string | Absolute path of the file that contains the service information to dump. |

en/application-dev/reference/apis/js-apis-hisysevent.md

@@ -2,7 +2,7 @@
 
 Provides system event logging APIs for system HAP applications.
 
-> **NOTE**<br>
+> **NOTE**
 > - The initial APIs of this module are supported since API version 9. Newly added APIs will be marked with a superscript to indicate their earliest API version.
 > - The APIs of this module are system APIs.
 
@@ -19,7 +19,7 @@ Enumerates event types.
 
 **System capability**: SystemCapability.HiviewDFX.HiSysEvent
 
-| Name| Default Value| Description|
+| Name | Default Value | Description |
 | -------- | -------- | -------- |
 | FAULT | 1 | Error event.|
 | STATISTIC | 2 | Statistic event.|
@@ -32,7 +32,7 @@ Defines a system event.
 
 **System capability**: SystemCapability.HiviewDFX.HiSysEvent
 
-| Name| Type| Mandatory| Description|
+| Name| Type | Mandatory | Description |
 | -------- | -------- | -------- | -------- |
 | domain | string | Yes| Event domain.|
 | name | string | Yes| Event name.|
@@ -50,7 +50,7 @@ Writes event information to the event file. This API uses an asynchronous callba
 
 **Parameters**
 
-| Name   | Type                     | Mandatory| Description                                                        |
+| Name   | Type                     | Mandatory | Description                                                        |
 | --------- | ------------------------- | ---- | ------------------------------------------------------------ |
 | info | [SysEventInfo](#syseventinfo) | Yes| System event information.|
 | callback  | AsyncCallback&lt;void&gt; | Yes| Callback used to process the received return value.<br>- Value **0**: The event verification is successful, and the event will be written to the event file asynchronously. <br>- A value greater than **0**: Invalid parameters are present in the event, and the event will be written to the event file asynchronously after the invalid parameters are ignored.<br>- A value smaller than **0**: The event parameter verification fails, and the event will not be written to the event file.|
@@ -91,13 +91,13 @@ Writes event information to the event file. This API uses a promise to return th
 
 **Parameters**
 
-| Name   | Type                   | Mandatory| Description|
+| Name   | Type                   | Mandatory | Description|
 | --------- | ----------------------- | ---- | --------------- |
 | info | [SysEventInfo](#syseventinfo) | Yes  | System event information.|
 
 **Return value**
 
-| Type               | Description                                                        |
+| Type               | Description                                                   |
 | ------------------- | ------------------------------------------------------------ |
 | Promise&lt;void&gt; | Promise used to return the result. Depending on whether event writing is successful, you can use the **then()** or **catch()** method to process the callback.|
 
@@ -138,7 +138,7 @@ Enumerates matching rule types.
 
 **System capability**: SystemCapability.HiviewDFX.HiSysEvent
 
-| Name| Default Value| Description|
+| Name | Default Value | Description |
 | -------- | -------- | -------- |
 | WHOLE_WORD | 1 | Whole word matching.|
 | PREFIX | 2 | Prefix matching.|
@@ -150,7 +150,7 @@ Defines rules for event subscription.
 
 **System capability**: SystemCapability.HiviewDFX.HiSysEvent
 
-| Name| Type| Mandatory| Description|
+| Name| Type | Mandatory | Description |
 | -------- | -------- | -------- | -------- |
 | domain | string | Yes| Event domain.|
 | name | string | Yes| Event name.|
@@ -163,7 +163,7 @@ Defines a watcher for event subscription.
 
 **System capability**: SystemCapability.HiviewDFX.HiSysEvent
 
-| Name| Type| Mandatory| Description|
+| Name| Type | Mandatory | Description |
 | -------- | -------- | -------- | -------- |
 | rules | [WatchRule](#watchrule)[] | Yes| Array of matching rules for event subscription.|
 | onEvent | function | Yes| Callback for event subscription: (info: [SysEventInfo](#syseventinfo)) => void|
@@ -181,7 +181,7 @@ Adds a watcher for event subscription.
 
 **Parameters**
 
-| Name| Type| Mandatory| Description|
+| Name| Type | Mandatory | Description |
 | ------ | ----------------------------- | ---- | ------------------------ |
 | watcher | [Watcher](#watcher) | Yes| Watcher for event subscription.|
 
@@ -223,7 +223,7 @@ Removes a watcher used for event subscription.
 
 **Parameters**
 
-| Name| Type | Mandatory| Description |
+| Name| Type | Mandatory | Description |
 | ------ | ------------- | ---- | ------------------------ |
 | watcher | [Watcher](#watcher) | Yes| Watcher for event subscription.|
 
@@ -260,7 +260,7 @@ Defines arguments for event query.
 
 **System capability**: SystemCapability.HiviewDFX.HiSysEvent
 
-| Name| Type| Mandatory| Description|
+| Name| Type | Mandatory | Description |
 | -------- | -------- | -------- | -------- |
 | beginTime | number | Yes| Start time (13-digit timestamp) for event query.|
 | endTime | number | Yes| End time (13-digit timestamp) for event query.|
@@ -272,7 +272,7 @@ Defines rules for event query.
 
 **System capability**: SystemCapability.HiviewDFX.HiSysEvent
 
-| Name| Type| Mandatory| Description|
+| Name| Type | Mandatory | Description |
 | -------- | -------- | -------- | -------- |
 | domain | string | Yes| Event domain.|
 | names | string[] | Yes| Array of event names.|
@@ -283,7 +283,7 @@ Defines an event query instance.
 
 **System capability**: SystemCapability.HiviewDFX.HiSysEvent
 
-| Name| Type| Mandatory| Description|
+| Name| Type | Mandatory | Description |
 | -------- | -------- | -------- | -------- |
 | onQuery | function | Yes| Callback of queried events: (infos: [SysEventInfo](#syseventinfo)[]) => void|
 | onComplete | function | Yes| Callback of query result statistics: (reason: number, total: number) => void|
@@ -300,7 +300,7 @@ Queries system events.
 
 **Parameters**
 
-| Name| Type| Mandatory| Description|
+| Name| Type | Mandatory | Description |
 | ------ | ----------------------------- | ---- | ------------------------ |
 | queryArg | [QueryArg](#queryarg) | Yes  | Arguments for event query.|
 | rules | [QueryRule](#queryrule)[] | Yes  | Array of event query rules.|

en/application-dev/reference/apis/js-apis-http.md

@@ -358,7 +358,7 @@ Specifies the type and value range of the optional parameters in the HTTP reques
 | Name        | Type                                         | Mandatory| Description                                                        |
 | -------------- | --------------------------------------------- | ---- | ------------------------------------------------------------ |
 | method         | [RequestMethod](#requestmethod)               | No  | Request method.                                                  |
-| extraData      | string \| Object  \| ArrayBuffer<sup>8+</sup> | No  | Additional data of the request.<br>- If the HTTP request uses a POST or PUT method, this parameter serves as the content of the HTTP request.<br>- If the HTTP request uses a GET, OPTIONS, DELETE, TRACE, or CONNECT method, this parameter is a supplement to the HTTP request parameters and will be added to the URL when the request is sent.<sup>8+</sup><br>- To pass in a string object, you first need to encode the object on your own.<sup>8+</sup> |
+| extraData      | string \| Object  \| ArrayBuffer<sup>6+</sup> | No  | Additional data of the request.<br>- If the HTTP request uses a POST or PUT method, this parameter serves as the content of the HTTP request.<br>- If the HTTP request uses a GET, OPTIONS, DELETE, TRACE, or CONNECT method, this parameter is a supplement to the HTTP request parameters and will be added to the URL when the request is sent.<sup>6+</sup><br>- To pass in a string object, you first need to encode the object on your own.<sup>8+</sup> |
 | header         | Object                                        | No  | HTTP request header. The default value is **{'Content-Type': 'application/json'}**.  |
 | readTimeout    | number                                        | No  | Read timeout duration. The default value is **60000**, in ms.             |
 | connectTimeout | number                                        | No  | Connection timeout interval. The default value is **60000**, in ms.             |
@@ -432,7 +432,7 @@ Defines the response to an HTTP request.
 
 | Name              | Type                                        | Mandatory| Description                                                        |
 | -------------------- | -------------------------------------------- | ---- | ------------------------------------------------------------ |
-| result               | string \| Object \| ArrayBuffer<sup>8+</sup> | Yes  | Response content returned based on **Content-type** in the response header:<br>- application/json: a string in JSON format. If you want to use specific content in the response, you need to implement parsing of that content.<br>- application/octet-stream: ArrayBuffer<br>- Others: string|
+| result               | string \| Object \| ArrayBuffer<sup>6+</sup> | Yes  | Response content returned based on **Content-type** in the response header:<br>- application/json: a string in JSON format. If you want to use specific content in the response, you need to implement parsing of that content.<br>- application/octet-stream: ArrayBuffer<br>- Others: string|
 | responseCode         | [ResponseCode](#responsecode) \| number      | Yes  | Result code for an HTTP request. If the callback function is successfully executed, a result code defined in [ResponseCode](#responsecode) will be returned. Otherwise, an error code will be returned in the **err** field in **AsyncCallback**. For details, see [Error Codes](#error-codes).|
 | header               | Object                                       | Yes  | Response header. The return value is a string in JSON format. If you want to use specific content in the response, you need to implement parsing of that content. Common fields and parsing methods are as follows:<br>- Content-Type: header['Content-Type'];<br>- Status-Line: header['Status-Line'];<br>- Date: header.Date/header['Date'];<br>- Server: header.Server/header['Server'];|
 | cookies<sup>8+</sup> | Array\<string\>                              | Yes  | Cookies returned by the server.                                      |

en/application-dev/reference/apis/js-apis-net-connection.md

@@ -110,7 +110,7 @@ connection.hasDefaultNet().then(function (has) {
 
 getAllNets(callback: AsyncCallback<Array<NetHandle>>): void
 
-Obtains the list of all active data networks. This API uses an asynchronous callback to return the result.
+Obtains the list of all connected networks. This API uses an asynchronous callback to return the result.
 
 **Required permission**: ohos.permission.GET_NETWORK_INFO
 
@@ -136,7 +136,7 @@ connection.getAllNets(function (error, nets) {
 
 getAllNets(): Promise<Array<NetHandle>>
 
-Obtains the list of all active data networks. This API uses a promise to return the result.
+Obtains the list of all connected networks. This API uses a promise to return the result.
 
 **Required permission**: ohos.permission.GET_NETWORK_INFO
 
@@ -280,7 +280,7 @@ connection.getDefaultNet().then(function (netHandle) {
 
 reportNetConnected(netHandle: NetHandle, callback: AsyncCallback<void>): void
 
-Reports connection of the data network. This API uses an asynchronous callback to return the result.
+Reports connection of the data network to the network management module. This API uses an asynchronous callback to return the result. If this API is called, the application considers that the network connection state (**ohos.net.connection.NetCap.NET_CAPABILITY_VAILDATED**) is inconsistent with that in the network management module.
 
 **Permission required**: ohos.permission.GET_NETWORK_INFO and ohos.permission.INTERNET
 
@@ -308,7 +308,7 @@ connection.getDefaultNet().then(function (netHandle) {
 
 reportNetConnected(netHandle: NetHandle): Promise<void>
 
-Reports connection of the data network. This API uses a promise to return the result.
+Reports connection of the data network to the network management module. This API uses a promise to return the result. If this API is called, the application considers that the network connection state (**ohos.net.connection.NetCap.NET_CAPABILITY_VAILDATED**) is inconsistent with that in the network management module.
 
 **Permission required**: ohos.permission.GET_NETWORK_INFO and ohos.permission.INTERNET
 
@@ -341,7 +341,7 @@ connection.getDefaultNet().then(function (netHandle) {
 
 reportNetDisconnected(netHandle: NetHandle, callback: AsyncCallback<void>): void
 
-Reports disconnection of the data network. This API uses an asynchronous callback to return the result.
+Reports disconnection of the data network to the network management module. This API uses an asynchronous callback to return the result. If this API is called, the application considers that the network connection state (**ohos.net.connection.NetCap.NET_CAPABILITY_VAILDATED**) is inconsistent with that in the network management module.
 
 **Permission required**: ohos.permission.GET_NETWORK_INFO and ohos.permission.INTERNET
 
@@ -369,7 +369,8 @@ connection.getDefaultNet().then(function (netHandle) {
 
 reportNetDisconnected(netHandle: NetHandle): Promise<void>
 
-Reports disconnection of the data network. This API uses a promise to return the result.
+Reports disconnection of the data network to the network management module. This API uses a promise to return the result. If this API is called, the application considers that the network connection state (**ohos.net.connection.NetCap.NET_CAPABILITY_VAILDATED**) is inconsistent with that in the network management module.
+
 
 **Permission required**: ohos.permission.GET_NETWORK_INFO and ohos.permission.INTERNET
 
@@ -558,7 +559,7 @@ connection.disableAirplaneMode().then(function (error) {
 
 createNetConnection(netSpecifier?: NetSpecifier, timeout?: number): NetConnection
 
-Obtains the handle of the network specified by **netSpecifier**.
+Creates a **NetConnection** object. **netSpecifier** specifies the network, and **timeout** specifies the timeout interval in ms. **timeout** is configurable only when **netSpecifier** is specified. If neither of them is present, the default network is used.
 
 **System capability**: SystemCapability.Communication.NetManager.Core
 
@@ -950,9 +951,9 @@ Defines the network capability.
 | ------------------------ | ---- | ---------------------- |
 | NET_CAPABILITY_MMS | 0 | The network can connect to the carrier's Multimedia Messaging Service Center (MMSC) to send and receive multimedia messages.|
 | NET_CAPABILITY_NOT_METERED | 11 | The network traffic is not metered.|
-| NET_CAPABILITY_INTERNET  | 12   | The network can connect to the Internet.|
+| NET_CAPABILITY_INTERNET  | 12   | The network has the Internet access capability, which is set by the network provider.|
 | NET_CAPABILITY_NOT_VPN | 15 | The network does not use a Virtual Private Network (VPN).|
-| NET_CAPABILITY_VALIDATED | 16   | The network is available.            |
+| NET_CAPABILITY_VALIDATED | 16   | The Internet access capability of the network is successfully verified by the network management module.          |
 
 ## NetBearType
 

zh-cn/application-dev/quick-start/Readme-CN.md

@@ -12,6 +12,7 @@
 
   - [SysCap说明](syscap.md)
   - [HarmonyAppProvision配置文件](app-provision-structure.md)
+  - [资源分类与访问](resource-categories-and-access.md)
   - 学习ArkTS语言
     - [初识ArkTS语言](arkts-get-started.md)
     - ArkTS语法（声明式UI）