AspNetCoreWebApi接口返回文件

 

　　　　　　[HttpGet]
        public async Task<IActionResult> ShareFile()
        {
             using MemoryStream ms = new MemoryStream();
             //docHtml.Save(ms);//文件流保存
             return File(ms.ToArray(), "application/octet-stream", $"文件名_{DateTime.Now.ToString("yyyy-MM-dd")}.pdf");
        }