MVC————扩展方法MvcHtmlString

public static class MyHtmlHelper
2     {
3         public static string GroupPage(this HtmlHelper helper)
4         {
5             string html1 = "<span style='color:red;'>hello</span>";
6             return html1;
7
8         }
9     }

public static class MyHtmlHelper
{
public static MvcHtmlString GroupPage(this HtmlHelper helper)
{
string html1 = "<span style='color:red;'>hello</span>";
return new MvcHtmlString(html1);

}
}