“Hello World!团队”Beta发布—视频链接+文案+美工

视频链接：http://v.youku.com/v_show/id_XMzE3MjEyMzkyMA==.html?spm=a2h3j.8428770.3416059.1

文案+美工：http://www.cnblogs.com/chjy/p/7868335.html