http://v.youku.com/v_show/id_XMzA3MjY4MTU5Ng==.html?spm=a2h3j.8428770 .3416059.1 这个是YAU后四棱
http://v.youku.com/v_show/id_XMzA3MjY4MjQyOA== .html?spm=a2h3j.8428770 .3416059.1这个是五阶YAU实例两则
http://v.youku.com/v_show/id_XMzA3MjY4MjQyOA== .html?spm=a2h3j.8428770 .3416059.1这个是五阶YAU实例两则