public static Dictionary<string, decimal?> DisplayNameModel<T>(T t)
        {
            Type type = typeof(T);
            PropertyInfo[] properties = type.GetProperties();
            Dictionary<string, decimal?> dic = new Dictionary<string, decimal?>();
            foreach (var p in properties)
            {
                //display名字
                var name = p.GetCustomAttribute<DisplayNameAttribute>().DisplayName;
                //对应的值
                var value = t.GetType().GetProperty(p.Name).GetValue(t, null);
                dic.Add(name, Convert.ToDecimal(value));
            }
            return dic;
        }