public async Task <IActionResult> AddOrUpdate(Categories categories)
{
ViewData["DataType"] = typeof(FileEntry);
var pcat = await contentBusiness.GetCategoryByName("漫画");
categories.ParentCategory = pcat;
var _fileEntry = await contentBusiness.CreateCategory(categories);
ViewData["DataModel"] = _fileEntry;
return(RedirectToAction("Index"));
}