以下代码是 获取class="lqwvje"下所有的 img标签
//原创来自:http://www.luofenming.com/show.aspx?id=ART2019031300001 <div class="lqwvje"> <img src="http://www.luofenming.com/upload/image/2019/3/9/20190309205613_7873.jpg" /> <img src="http://www.luofenming.com/upload/image/2019/3/9/20190309205613_7873.jpg" /> <img src="http://www.luofenming.com/upload/image/2019/3/9/20190309205613_7873.jpg" /> </div> <div class="lqwvje22"> <img src="http://www.luofenming.com/upload/image/2019/3/9/20190309205613_7873.jpg" /> <img src="http://www.luofenming.com/upload/image/2019/3/9/20190309205613_7873.jpg" /> <img src="http://www.luofenming.com/upload/image/2019/3/9/20190309205613_7873.jpg" width="400" /> </div> //方法一 <script type="text/javascript"> var images = []; var divs = document.querySelectorAll(".lqwvje img"); for (var i = 0; i < divs.length; i++) { images.push(divs[i]);//这是获得 class="lqwvje" 下的所有img标签 } </script> //方法二 <script type="text/javascript"> var images = []; var divs = document.getElementsByClassName("lqwvje"); for (var i = 0; i < divs.length; i++) { var imgs = divs[i].getElementsByTagName("img"); for (var j = 0; j < imgs.length; j++) { images.push(imgs[j]);//这是获得 class="lqwvje" 下的所有img标签 } } </script>同样 也可以延申到 获取任何DIV下所有的标签 等等