/// <summary>
/// 获取符合条件的子元素
/// </summary>
/// <param name="container">要获取子元素的容器</param>
/// <param name="selector">用来筛选子元素的元素选择器</param>
/// <returns>符合条件的子元素</returns>
public static IEnumerable <IHtmlElement> Elements(this IHtmlContainer container, string selector)
{
if (container == null)
{
throw new ArgumentNullException("container");
}
if (selector == null)
{
throw new ArgumentNullException("selector");
}
return(CssParser.ParseElementSelector(selector).Filter(Elements(container)));
}
/// <summary>
/// 获取符合条件的兄弟（同级）元素节点
/// </summary>
/// <param name="node">要获取兄弟（同级）元素节点的节点</param>
/// <param name="selector">用于筛选元素的元素选择器</param>
/// <returns>所有的兄弟（同级）元素节点</returns>
public static IEnumerable <IHtmlElement> Siblings(this IHtmlNode node, string selector)
{
return(CssParser.ParseElementSelector(selector).Filter(node.Siblings()));
}