Question

我知道如何在应用程序中创建一个文件夹，如下所示：

print("Enter the item number:")
    line_count = 0
    marked_item = int(input())
    with open("items.csv", 'r') as f:
        reader = csv.DictReader(f, delimiter=',')
        for line in reader:
            if line["item_required"] == 'r':
                line_count += 1
                if marked_item == line_count:
                    new_list = line
                    print(new_list)
                    for key, value in new_list.items():
                        if value == "r":
                            new_list['item_required'] = "x"
                            print(new_list)
    with open("items.csv", 'a') as f:
        writer = csv.writer(f)
        writer.writerow(new_list.values())

但是如何在C：\？

中创建文件夹

  // Get the app's local folder.
   StorageFolder localFolder = Windows.Storage.ApplicationData.Current.LocalFolder;

string desiredName = "Subfolder";
StorageFolder newFolder = await localFolder.CreateFolderAsync(desiredName,CreationCollisionOption.FailIfExists);

以上不起作用。

感谢您的帮助。

由于

Answer 1

但是如何在C：\？
中创建文件夹

要在C:\中创建文件夹，您需要使用FolderPicker来获取该文件夹。然后使用StorageFolder.CreateFolderAsync创建一个文件夹：

var picker=new  Windows.Storage.Pickers.FolderPicker();
picker.SuggestedStartLocation = Windows.Storage.Pickers.PickerLocationId.Desktop;
picker.FileTypeFilter.Add(".exe");//add any extension to avoid exception
var folder=await picker.PickSingleFolderAsync();
if (folder != null)
{
   var myNewFolder=await folder.CreateFolderAsync("myNewFolder");
}

您可以将文件夹保存在FutureAccessList中，以后可以创建没有选择器的子文件夹：

Windows.Storage.AccessCache.StorageApplicationPermissions.FutureAccessList.AddOrReplace("PickedFolderToken", folder);

获取没有选择器的文件夹：

var folder = await Windows.Storage.AccessCache.StorageApplicationPermissions.FutureAccessList.GetFolderAsync("PickedFolderToken");
if (folder != null)
{
    var newFolder=folder.CreateFolderAsync("myQuiteFolder");
}

以下是演示：SaveFolderSample。

如何在C盘目录中创建文件夹

1 个答案: