小程序云开发对云数据库中嵌套数组、数组对象的更新

//其余如上
['一维数组名.'+索引+'.三维数组名.四维数组名']:修改值

return await db.collection('binVer').doc(_id)
  .update({
    data: {
     [`subset.${index}.isHeadUpdate`]: event.isHeadUpdate,
     [`subset.${index}.headBinfileID`]: event.headBinfileID,
     [`subset.${index}.headBinDate`]: event.headBinDate,
     [`subset.${index}.headHardVer`]: event.headHardVer,
     [`subset.${index}.headSoftVer`]: event.headSoftVer,
   }
  }).then(res => {
      return {
        msg: '更新配置成功'
      }
  }).catch(err => {
     return {
         msg: '更新配置失败'
      }
})