页面横竖屏如何进行切换

import { BusinessError } from '@kit.BasicServicesKit';

let orientation = window.Orientation.AUTO_ROTATION;
try{
  windowClass.setPreferredOrientation(orientation, (err) => {
    if(err.code){
      console.error('Failed to set window orientation. Cause: ' + JSON.stringify(err));
      return;
    }
    console.info('Succeeded in setting window orientation.');
  });
}catch (exception) {
  console.error('Failed to set window orientation. Cause: ' + JSON.stringify(exception));
}