AppState = Context.Application
@{
ViewBag.Title = "Home Page";
AppState["s1"] = "状态一";
}
<div class="jumbotron">
<p>AppState: @AppState["s1"]</p>
<p>Context.Application: @Context.Application["s1"]</p>
</div>
cshtml 中的 AppState = Context.Application 和 控制器中的 Application 也相等