const in_data = defineProps( ["data"] ) //将父页传来的数据 转化为script可用 const { data } = toRefs(in_data); <VInput v-model="data.title" label="任务名" return-object class="mb-3" />

这段代码的作用是将父页传来的数据转化为可在script中使用的形式。其中，使用了Vue Composition API中的toRefs方法，将父页传来的in_data对象解构成data变量。然后，通过v-model将data对象中的title属性与VInput组件进行双向绑定，使得输入框中的值可以同步更新到data.title中。另外，还设置了label属性为"任务名"，class属性为"mb-3"。最后，通过return-object属性，使得VInput组件返回一个对象，而不是单独的值。

相关问题

帮我优化以下 const val LOAD_H5_SUCCESS="appLoadH5Success" //H5加载完成 const val APP_START_ACTIVITY="appStartActivity" const val GET_GAODE_LOCATION = "appGetGaoDeLocation" //获取定位 const val BARCODESCANNER_SCAN = "appBarcodescannerScan" //扫码 const val APP_GET_FILE_BASE64 = "appGetFileBase64" const val CAMERA_UPLOAD = "appCameraUpload" //调取拍照的功能 const val CREDENTIALS_CAMERA_UPLOAD = "appCredentialsCameraUpload" //调取证件拍照的功能 const val SCAN_BLUETOOTH = "appScanBluetooth" const val APP_DISCONNECT_BLE="appDisConnectBle" const val TH_PRINT = "appThPrint" const val GET_TH_WEIGHT = "appGetThWeight" const val GET_SJ_WEIGHT = "appGetSjWeight" const val PDA_PRINT = "appPdaPrint" const val GALLERY_UPLOAD = "appGalleryUpload" //上传文件 const val CREDENTIALS_GALLERY_UPLOAD = "appCredentialsGalleryUpload" //证件本地文件上传 const val FILE_UPLOAD = "appFileUpload" const val CLEAR_CACHE = "appClearCache" //清理缓存 const val GET_CACHE_SIZE = "appGetCacheSize" //获取缓存 const val DOWNLOAD_FILE = "appDownloadFile" const val PHONE_DEVICE = "appPhoneDevice" //H5获取手机设备信息 const val MEDIA_START_RECORD = "appMediaStartRecord" //开启录音 const val MEDIA_STOP_RECORD = "appMediaStopRecord" //结束录音 const val PDA_SCAN = "appPdaScan" const val APP_BLE_CONNECTED = "appBleConnected" const val APP_BLE_CONNECTED_BY_PARAMS = "appBleConnectedByParams" const val APP_USB_CONNECTED = "appUsbConnected" const val APP_CONNECT_USB = "appConnectUsb" const val APP_BACK_PAGE = "appBackPage" const val APP_LOGOUT="appLogout" //退出登录 const val APP_LOGOUT_MESSAGE="appLogoutMessage" //402 401 提示 const val APP_TOKEN_TIMEOUT="appTokenTimeOut" //token过期 const val APP_TO_BACKLOG="appToBacklog" //返回工作台 const val APP_REFRESH_BACKLOG="appRefreshBacklog" //刷新工作台 const val APP_REFRESH_BACKLOG_NUM="appRefreshBacklogNum" //刷新工作台数量 const val APP_CLOSE_MULTI_CHOOSE="appCloseMultiChoose" const val APP_SET_ORG_DATA="appSetOrgData"

可以将这些常量放在一个公共的类中，以便全局使用，如下所示：

object AppConstants {
    const val LOAD_H5_SUCCESS="appLoadH5Success" //H5加载完成
    const val APP_START_ACTIVITY="appStartActivity"
    const val GET_GAODE_LOCATION = "appGetGaoDeLocation" //获取定位
    const val BARCODESCANNER_SCAN = "appBarcodescannerScan" //扫码
    const val APP_GET_FILE_BASE64 = "appGetFileBase64"
    const val CAMERA_UPLOAD = "appCameraUpload" //调取拍照的功能
    const val CREDENTIALS_CAMERA_UPLOAD = "appCredentialsCameraUpload" //调取证件拍照的功能
    const val SCAN_BLUETOOTH = "appScanBluetooth"
    const val APP_DISCONNECT_BLE="appDisConnectBle"
    const val TH_PRINT = "appThPrint"
    const val GET_TH_WEIGHT = "appGetThWeight"
    const val GET_SJ_WEIGHT = "appGetSjWeight"
    const val PDA_PRINT = "appPdaPrint"
    const val GALLERY_UPLOAD = "appGalleryUpload" //上传文件
    const val CREDENTIALS_GALLERY_UPLOAD = "appCredentialsGalleryUpload" //证件本地文件上传
    const val FILE_UPLOAD = "appFileUpload"
    const val CLEAR_CACHE = "appClearCache" //清理缓存
    const val GET_CACHE_SIZE = "appGetCacheSize" //获取缓存
    const val DOWNLOAD_FILE = "appDownloadFile"
    const val PHONE_DEVICE = "appPhoneDevice" //H5获取手机设备信息
    const val MEDIA_START_RECORD = "appMediaStartRecord" //开启录音
    const val MEDIA_STOP_RECORD = "appMediaStopRecord" //结束录音
    const val PDA_SCAN = "appPdaScan"
    const val APP_BLE_CONNECTED = "appBleConnected"
    const val APP_BLE_CONNECTED_BY_PARAMS = "appBleConnectedByParams"
    const val APP_USB_CONNECTED = "appUsbConnected"
    const val APP_CONNECT_USB = "appConnectUsb"
    const val APP_BACK_PAGE = "appBackPage"
    const val APP_LOGOUT="appLogout" //退出登录
    const val APP_LOGOUT_MESSAGE="appLogoutMessage" //402 401 提示
    const val APP_TOKEN_TIMEOUT="appTokenTimeOut" //token过期
    const val APP_TO_BACKLOG="appToBacklog" //返回工作台
    const val APP_REFRESH_BACKLOG="appRefreshBacklog" //刷新工作台
    const val APP_REFRESH_BACKLOG_NUM="appRefreshBacklogNum" //刷新工作台数量
    const val APP_CLOSE_MULTI_CHOOSE="appCloseMultiChoose"
    const val APP_SET_ORG_DATA="appSetOrgData"
}

使用时只需通过类名调用即可，如 `AppConstants.LOAD_H5_SUCCESS`。这样做的好处是方便管理和维护，同时也可以避免命名冲突。

const header = 0xAA; //链路层协议报文头标识 var ntr = 20; //必须应答的最大报文个数 最大39 var send_ntr = 0; //已经发送的 ntr数 var rto = 200; //应答超时时间 var mcp = 20; //可连续发生的ntr个数 最大20 var receiver_ntr_count = 0; //连续收到的报文个数 var receiverBlueEmsData = [] //接收到的蓝牙报文队列 var receiverEmsData = [] //接收到的报文队列 var receiverCurrentPackLenght = 0; //已接收报文的长度 var receiver_cmd = 0; //接收到的命令号 var send_array = []; //待发送数据报文 var rto_send_package = 0; //rto 定时发送数量 var linkTimer; const app = getApp(); const defaultByteLength = 16; const packeByteLength = 20; var todo_send_blue_data = [] //数据发送队列 var _applicationWatch; //应用层监听器 var lastSendData = [] //上次发送数据的缓存 var lastSendResult = true; //上次是否发送成功请帮我封装这些代码

封装这些代码可以使用一个函数来实现，如下所示：

function initializeVariables() {
  const header = 0xAA; //链路层协议报文头标识
  var ntr = 20; //必须应答的最大报文个数 最大39
  var send_ntr = 0; //已经发送的 ntr数
  var rto = 200; //应答超时时间
  var mcp = 20; //可连续发生的ntr个数 最大20 
  var receiver_ntr_count = 0; //连续收到的报文个数
  var receiverBlueEmsData = [] //接收到的蓝牙报文队列
  var receiverEmsData = [] //接收到的报文队列
  var receiverCurrentPackLenght = 0; //已接收报文的长度
  var receiver_cmd = 0; //接收到的命令号
  var send_array = []; //待发送数据报文
  var rto_send_package = 0; //rto 定时发送数量

  var linkTimer;
  const app = getApp();
  const defaultByteLength = 16;
  const packeByteLength = 20;
  var todo_send_blue_data = [] //数据发送队列
  var _applicationWatch; //应用层监听器
  var lastSendData = [] //上次发送数据的缓存
  var lastSendResult = true; //上次是否发送成功

  // 返回封装后的变量对象
  return {
    header,
    ntr,
    send_ntr,
    rto,
    mcp,
    receiver_ntr_count,
    receiverBlueEmsData,
    receiverEmsData,
    receiverCurrentPackLenght,
    receiver_cmd,
    send_array,
    rto_send_package,
    linkTimer,
    app,
    defaultByteLength,
    packeByteLength,
    todo_send_blue_data,
    _applicationWatch,
    lastSendData,
    lastSendResult
  };
}

// 调用函数初始化变量
var variables = initializeVariables();

通过调用`initializeVariables()`函数，可以将变量封装在一个对象中，以便在其他地方使用。这样可以保持代码的整洁性和可读性。