document.write('<li><a href="http://yun.itheima.com/course/558.html?seonews" target="_blank"><h3>独家秘制剪辑宝典50招</h3><div class="side_fr"><div class="img_box"><img src="http://yun.itheima.com/Upload/./Images/20190725/5d390b866b6d4.jpg"/></div><div class="btm"><span class="span1">初级</span><p>133935人学习</p><span class="span2">5.0分</span></div></div></a></li><li><a href="http://yun.itheima.com/course/559.html?seonews" target="_blank"><h3>短视频创造营</h3><div class="side_fr"><div class="img_box"><img src="http://yun.itheima.com/Upload/./Images/20190809/5d4d19ad809ac.JPG"/></div><div class="btm"><span class="span1">初级</span><p>102191人学习</p><span class="span2">5.0分</span></div></div></a></li><li><a href="http://yun.itheima.com/course/601.html?seonews" target="_blank"><h3>23节轻松掌握大范围延时摄影</h3><div class="side_fr"><div class="img_box"><img src="http://yun.itheima.com/Upload/./Images/20191105/5dc1157669452.jpg"/></div><div class="btm"><span class="span1">中级</span><p>84187人学习</p><span class="span2">5.0分</span></div></div></a></li><li><a href="http://yun.itheima.com/course/595.html?seonews" target="_blank"><h3>C4D精品项目案例25集打造AppleWatch</h3><div class="side_fr"><div class="img_box"><img src="http://yun.itheima.com/Upload/./Images/20191029/5db7a0ec6de82.jpg"/></div><div class="btm"><span class="span1">中级</span><p>73953人学习</p><span class="span2">5.0分</span></div></div></a></li>')