使输出缓存过期ASP.Net MVC

[OutputCache(Duration=60)]
public ActionResult Index()
{
    return View();
}

    <caching>
       <outputCacheSettings>
           <outputCacheProfiles>
                <add name="Cache1Hour" duration="3600" />
            </outputCacheProfiles>
        </outputCacheSettings>
    </caching>
</system.web>

[OutputCache(CacheProfile="Cache1Hour")]
public ActionResult Index()
{
    return View();
}

public ActionResult Index()
{
    HttpResponse.RemoveOutputCacheItem("/Home/Index");
    return View();
}

public ActionResult Index()
{
    HttpResponse.Cache.SetExpires(DateTime.Now.AddMinutes(60));
    return View();
}