如何在UWP中将任意位置的图像或文件复制或删除到应用程序中的文件夹

string sourceFilePath = "path_to_source_file";
string destinationFolderPath = "path_to_destination_folder";

StorageFile sourceFile = await StorageFile.GetFileFromPathAsync(sourceFilePath);
StorageFolder destinationFolder = await StorageFolder.GetFolderFromPathAsync(destinationFolderPath);

await sourceFile.CopyAsync(destinationFolder, sourceFile.Name, NameCollisionOption.GenerateUniqueName);

string sourceFilePath = "path_to_source_file";

StorageFile sourceFile = await StorageFile.GetFileFromPathAsync(sourceFilePath);
await sourceFile.DeleteAsync();