1.运行效果如图所示


2.实现代码如下

<!DOCTYPEhtml><html><head><metacharset="utf-8"><metahttp-equiv="X-UA-Compatible"content="IE=edge"><title>媒体对象的嵌套</title><!--最新版本的Bootstrap核心CSS文件--><linkrel="stylesheet"href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css"integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh5u"crossorigin="anonymous"><!--可选的Bootstrap主题文件（一般不用引入）--><linkrel="stylesheet"href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap-theme.min.css"integrity="sha384-rHyoN1iRsVXV4nD0JutlnGaslCJuC7uwjduW9SVrLvRYooPp2bWYgmgJQIXwl/Sp"crossorigin="anonymous"></head><body><h4>媒体对象的嵌套</h4><divclass="media"><aclass="pull-left"href="#"><imgclass="media-object"src="http://a.disquscdn.com/uploads/users/3740/2069/avatar92.jpg?1406972031"alt="..."></a><divclass="media-body"><h5class="media-heading">我是大漠</h5><div>我是W3cplus站长大漠，我在写Bootstrap框中的媒体对象测试用例</div><divclass="media"><aclass="pull-left"href="#"><imgclass="media-object"src="http://tp2.sinaimg.cn/3306361973/50/22875318196/0"alt="..."></a><divclass="media-body"><h5class="media-heading">慕课网</h5><div>大漠写的《玩转Bootstrap》系列教程即将会在慕课网上发布</div><divclass="media"><aclass="pull-left"href="#"><imgclass="media-object"src="http://tp4.sinaimg.cn/1167075935/50/22838101204/1"alt="..."></a><divclass="media-body"><h5class="media-heading">W3cplus</h5><div>W3cplus站上还有很多教程....</div></div></div></div></div></div></div><scriptsrc="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script><!--最新的Bootstrap核心JavaScript文件--><scriptsrc="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa"crossorigin="anonymous"></script></body></html>