document.write('<li><a href="http://yun.itheima.com/course/841.html?seonews" target="_blank"><h3>零基础3天快速入门大数据</h3><div class="side_fr"><div class="img_box"><img src="http://yun.itheima.com/Upload/./Images/20210513/609ca04b707c2.jpg"/></div><div class="btm"><span class="span1">初级</span><p>81844人学习</p><span class="span2">5.0分</span></div></div></a></li><li><a href="http://yun.itheima.com/course/761.html?seonews" target="_blank"><h3>大数据自学宝典15天入门javaSE</h3><div class="side_fr"><div class="img_box"><img src="http://yun.itheima.com/Upload/./Images/20200708/5f05923ca18c3.jpg"/></div><div class="btm"><span class="span1">中级</span><p>96316人学习</p><span class="span2">5.0分</span></div></div></a></li><li><a href="http://yun.itheima.com/course/758.html?seonews" target="_blank"><h3>大数据自学教程Spark从零到精通完整版</h3><div class="side_fr"><div class="img_box"><img src="http://yun.itheima.com/Upload/./Images/20210922/614a86272aa3d.jpg"/></div><div class="btm"><span class="span1">中级</span><p>83521人学习</p><span class="span2">5.0分</span></div></div></a></li><li><a href="http://yun.itheima.com/course/824.html?seonews" target="_blank"><h3>大数据项目用户画像实战</h3><div class="side_fr"><div class="img_box"><img src="http://yun.itheima.com/Upload/./Images/20210922/614a8688b2707.jpg"/></div><div class="btm"><span class="span1">高级</span><p>66821人学习</p><span class="span2">5.0分</span></div></div></a></li>')