/// <summary>
/// 初始化一个新的图文响应消息实例。
/// </summary>
/// <param name="articles">文章信息。</param>
/// <exception cref="ArgumentNullException"><paramref name="articles"/> 为 null。</exception>
/// <exception cref="ArgumentException"><paramref name="articles"/> 长度大于 <see cref="ArticleMaxCount"/> 10。</exception>
public ResponseMessageNews(Article[] articles)
{
if (articles.NotNull("articles").Length > ArticleMaxCount)
throw new ArgumentException(string.Format("文章数量不能大于 {0} 条。", ArticleMaxCount), "articles");
Articles = articles;
}
/// <summary>
/// 初始化一个新的图文客服消息。
/// </summary>
/// <param name="toUserId">接收消息的用户Id。</param>
/// <param name="articles">图文项。</param>
public CustomServiceMessageNews(string toUserId, Article[] articles)
: base(toUserId)
{
if (articles.NotNull("articles").Length > ArticleMaxCount)
throw new ArgumentException(string.Format("文章数量不能大于 {0} 条。", ArticleMaxCount), "articles");
Articles = articles;
}