/// <summary>
        /// 添加关注控件
        /// </summary>
        /// <param name="htmlHelper"></param>
        /// <param name="followedUserId">被关注用户Id</param>
        /// <param name="buttonName">按钮名称</param>
        /// <param name="followedButtonType">已关注按钮样式</param>
        /// <param name="followButtonType">加关注按钮样式</param>
        /// <returns></returns>
        public static MvcHtmlString FollowUser(this HtmlHelper htmlHelper, long followedUserId, string buttonName = "关注", FollowedButtonTypes followedButtonType = FollowedButtonTypes.Default, FollowButtonTypes followButtonType = FollowButtonTypes.Button)
        {
            htmlHelper.ViewData["followedUserId"] = followedUserId;
            htmlHelper.ViewData["followedButtonType"] = followedButtonType;
            htmlHelper.ViewData["followButtonType"] = followButtonType;
            htmlHelper.ViewData["buttonName"] = buttonName;

            return htmlHelper.DisplayForModel("FollowUser");
        }
        /// <summary>
        /// 添加关注控件
        /// </summary>
        /// <param name="htmlHelper"></param>
        /// <param name="followedUserId">被关注用户Id</param>
        /// <param name="buttonName">按钮名称</param>
        /// <param name="followedButtonType">已关注按钮样式</param>
        /// <param name="followButtonType">加关注按钮样式</param>
        /// <returns></returns>
        public static MvcHtmlString FollowUser(this HtmlHelper htmlHelper, long followedUserId, string buttonName = "关注", FollowedButtonTypes followedButtonType = FollowedButtonTypes.Default, FollowButtonTypes followButtonType = FollowButtonTypes.Button)
        {
            htmlHelper.ViewData["followedUserId"]     = followedUserId;
            htmlHelper.ViewData["followedButtonType"] = followedButtonType;
            htmlHelper.ViewData["followButtonType"]   = followButtonType;
            htmlHelper.ViewData["buttonName"]         = buttonName;

            return(htmlHelper.DisplayForModel("FollowUser"));
        }