在ASP.NET Core Mvc集成MarkDown的方法

<script src="~/js/jquery-1.10.2.min.js"></script>
<link href="~/Lib/MarkDown/css/editormd.css" rel="external nofollow" rel="stylesheet" />
<link href="~/Lib/MarkDown/css/editormd.preview.css" rel="external nofollow" rel="stylesheet" />
<script src="~/Lib/MarkDown/js/editormd.js"></script>
<link href="~/lib/bootstrap/dist/css/bootstrap.min.css" rel="external nofollow" rel="stylesheet" />

 <div id="test-editormd">
    <textarea id="articleContent" style="display: none;">@Html.Raw(html)</textarea>
  </div>

$(function () {
    testEditor = editormd("test-editormd", {
      width: "99%",
      height: 640,
      syncScrolling: "single",
      path: "/Lib/MarkDown/lib/",
      saveHTMLToTextarea: true,
      emoji: true
    });
});

public class FileUploadController : Controller
  {
    private IWebHostEnvironment en;
    public FileUploadController(IWebHostEnvironment en) { this.en = en; }
    public IActionResult Index() { return View(); }
    [HttpPost]
    public async Task<IActionResult> UploadF()
    {
      var files = Request.Form.Files;
      string filename = files[0].FileName;
      string fileExtention = System.IO.Path.GetExtension(files[0].FileName);
      string path = Guid.NewGuid().ToString() + fileExtention;
      string basepath = en.WebRootPath;
      string path_server = "/upfile/" + path;
      using (FileStream fstream = new FileStream(basepath+path_server, FileMode.OpenOrCreate, FileAccess.ReadWrite))
      // using (FileStream fstream = System.IO.File.Create(newFile)) //两种都可以使用
      {
        await files[0].CopyToAsync(fstream);
      }
      return Ok(new { code = 200, msg = "上传成功！" ,filepath = path_server});
    }
  }

public static string[] GetHtmlImageUrlList(string sHtmlText)
    {
      // 定义正则表达式用来匹配 img 标签  
      Regex regImg = new Regex(@"<img\b[^<>]*?\bsrc[\s\t\r\n]*=[\s\t\r\n]*[""']?[\s\t\r\n]*(?<imgUrl>[^\s\t\r\n""'<>]*)[^<>]*?/?[\s\t\r\n]*>", RegexOptions.IgnoreCase);
      // 搜索匹配的字符串  
      MatchCollection matches = regImg.Matches(sHtmlText);
      int i = 0;
      string[] sUrlList = new string[matches.Count];
      // 取得匹配项列表  
      foreach (Match match in matches)
        sUrlList[i++] = match.Groups["imgUrl"].Value;
      return sUrlList;
    }