/// <summary>
        /// Dto对象转Entity，只是复制属性，dto的属性要比entity少2个哦。
        /// </summary>
        /// <typeparam name="T">EntityObject</typeparam>
        /// <param name="dto">dto对象</param>
        /// <returns>EntityObject对应的实例</returns>
        public EntityObject ConvertToEntityObject<T>(object dto) where T : EntityObject
        {
            Type dtoEntity = dto.GetType();
            var piList = dtoEntity.GetProperties().Where(p => p.PropertyType.IsPublic == true).ToList();
            Assembly assembly = Assembly.GetAssembly(typeof(T));
            object resultObj = assembly.CreateInstance(string.Join(".",new string[]{typeof(T).Namespace,typeof(T).Name}));
            var piResultObj = resultObj.GetType().GetProperties().Where(p => p.PropertyType.IsPublic == true).ToList();
            foreach (System.Reflection.PropertyInfo pi in piList)
            {
                var sourcePi = piResultObj.Single(p => p.Name == pi.Name);
                 if (sourcePi != null)
                 {
                     object value = pi.GetValue(dto, null);
                     sourcePi.SetValue(resultObj, value, null);
                 }                    
            }
            return resultObj as EntityObject;
        }