您可以使用 HtmlAgilityPack ，像这样的东西:

You can use HtmlAgilityPack, something like this:

HtmlDocument document = new HtmlDocument();
document.LoadHtml(Model.ContentField.Value);
string textValue = HtmlEntity.DeEntitize(document.DocumentNode.InnerText);
bool isEmpty = String.IsNullOrWhiteSpace(textValue);