如何使用c＃在PickMultipleFilesAsync（）中打开或选择多个图像？

Question

我尝试选择多个图像（来自任何文件夹）并在图像框中显示它们。我必须使用IReadOnlyStream＆lt;＆gt;和foreach循环但如何？ 我的代码的逻辑是

`FileOpenPicker fileOpenPicker = new FileOpenPicker（）;

        private async void button_Click(object sender, RoutedEventArgs e)
        {
        fileOpenPicker.SuggestedStartLocation = PickerLocationId.Desktop;
        fileOpenPicker.ViewMode = PickerViewMode.Thumbnail;
        fileOpenPicker.FileTypeFilter.Add(".png");
        fileOpenPicker.FileTypeFilter.Add(".jpg");
        fileOpenPicker.FileTypeFilter.Add(".jpeg");
        fileOpenPicker.FileTypeFilter.Add(".bmp");
        StorageFile file = await fileOpenPicker.PickSingleMultipleAsync(); 
        if(file != null)
        {
            textBlock.Text = file.Name;
            IRandomAccessStream fileStream = await file.OpenAsync(FileAccessMode.ReadWrite);
            BitmapImage bmp = new BitmapImage();
            bmp.SetSource(fileStream);
            image1.Source = bmp;

}