/// <summary>
/// 创建 jQuery 对象
/// </summary>
/// <param name="selector">选择器</param>
/// <param name="scope">范畴限定</param>
public jQuery(string selector, IHtmlContainer scope)
{
_selectorExpression = selector;
_scope = scope;
_selector = CssParser.Create(scope, selector);
_elements = _selector.Filter(_scope.Descendants());
}
