c# - 尝试在InstalledLocation StorageFolder中创建CreateFileAsync时拒绝访问？

尝试在InstalledLocation StorageFolder中创建CreateFileAsync时访问被拒绝

StorageFolder storageFolder = Windows.ApplicationModel.Package.Current.InstalledLocation;
StorageFile file = await storageFolder.CreateFileAsync("fileNmae", Windows.Storage.CreationCollisionOption.ReplaceExisting);

我也试过了

var storageFolder = await StorageFolder.GetFolderFromPathAsync("ms-appx:///");

并得到“值不在预期范围内”

我可以四处走动，然后先将CreateFileAsync放入Windows.Storage.ApplicationData.Current.LocalFolder中，然后再将CopyAsync放入InstalledLocation StorageFolder？

StorageFolder storageFolder = Windows.Storage.ApplicationData.Current.LocalFolder;
StorageFile file = await storageFolder.CreateFileAsync("fileName", Windows.Storage.CreationCollisionOption.ReplaceExisting);

StorageFolder installedLocationFolder = Windows.ApplicationModel.Package.Current.InstalledLocation;
var result = await file.CopyAsync(installedLocationFolder, "fileName", Windows.Storage.NameCollisionOption.ReplaceExisting);

但是InstalledLocation StorageFolder中的CreateFileAsync提供了拒绝访问的权限？
是出于安全原因还是我在此处编码错误？

最佳答案

该应用程序的安装目录是只读位置。另外，不建议您将数据文件写入安装位置。如果您需要存储数据仅供应用程序使用，则应使用

StorageFolder localFolder = ApplicationData.Current.LocalFolder;

或者

Windows.Storage.StorageFolder temporaryFolder = ApplicationData.Current.TemporaryFolder;

取决于数据的生存期。