//Html.Raw其实是调用 new Microsoft.AspNetCore.Html.HtmlString(xxx)

@{
    ViewData["Title"] = "Home Page";
}

    <div class="text-center">

        @(new Microsoft.AspNetCore.Html.HtmlString("<b>Hello World!</b>"))

        @(new Microsoft.AspNetCore.Html.HtmlString("<script>alert('Hello World1!')</script>"))
        @{
            string message = "<strong><font color='red'>This is bold!</font></strong>";
            message = "<script>alert('Hello World2!')</script>";
        }
        <p><span>@Html.Raw(message)</span></p> @*生成红色加粗字体This is bold!*@
        <p><span>@message</span></p>    @*展示message这个字符串的所有内容*@
    </div>