public class ModelToDTO
    {
        /// <summary>
        /// 根据模型对象获取扁平类对象
        /// </summary>
        /// <typeparam name="S">模型类</typeparam>
        /// <typeparam name="T">传输类</typeparam>
        /// <param name="s">模型类对象</param>
        /// <param name="t">传输类对象</param>
        /// <returns></returns>
        public static T GetDTOModel<S, T>(S s, T t) {
            if (s != null)
            {
                AutoMapping<S, T>(s, t);
                return t;
            }
            else {
                return default(T);
            }
        }
        
        /// <summary>
        /// 实体属性反射
        /// </summary>
        /// <typeparam name="S">赋值对象</typeparam>
        /// <typeparam name="T">被赋值对象</typeparam>
        /// <param name="s"></param>
        /// <param name="t"></param>
        private static void AutoMapping<S, T>(S s, T t)
        {
            PropertyInfo[] pps = GetPropertyInfos(s.GetType());
            Type target = t.GetType();

            foreach (var pp in pps)
            {
                PropertyInfo targetPP = target.GetProperty(pp.Name);
                object value = pp.GetValue(s, null);

                if (targetPP != null && value != null)
                {
                    targetPP.SetValue(t, value, null);
                }
            }
        }

        //获取对象属性
        private static PropertyInfo[] GetPropertyInfos(Type type)
        {
            return type.GetProperties(BindingFlags.Public | BindingFlags.Instance);
        }
    }