HarmonyOS 指定待创建的文件类型、后缀和创建选项，创建图片或视频资源，返回异常

let phAccessHelper = photoAccessHelper.getPhotoAccessHelper(getContext(this)) 
let displayName: string = '.jpg'; 
let options: photoAccessHelper.CreateOptions = { 
  title: 'testPhoto' 
} 
phAccessHelper.createAsset(photoAccessHelper.PhotoType.IMAGE,displayName,options).then((result:string)=> { 
  console.info('createAsset successfully, file displayName: ' + displayName + ' .... result .... ' + result); 
}).catch ((err:BusinessError) =>{ 
  console.error('createAsset failed, message = ', err.message + '.. code ..' + err.code + ' ....displayName: ' + displayName); 
})
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