<script>    $(document).ready(function () {        var htmlStr = '<div id="outerDiv"><div class="class1"><a>aa</a></div><div class="class1"><span>bb</span></div><div>cc</div></div>'        var htmlObj = $(htmlStr); //將字符串轉為jquery的dom對象        console.log(htmlObj.html());        var filterObj = htmlObj.find(".class1"); //對轉換后的對象進行查詢        console.log(filterObj);        alert($(filterObj[0]).html()); //<a>aa</a>        alert($(filterObj[1]).html()); //<span>bb</span>    }); </script>