设置视频自动播放：在video节中加上autoplay=""初次加载播放onloadstart=""
<video width="640" height="360" id="ctl00_ctl33_g_0eb8afcc_09fa_47a4_8493_d7517ccfddbd" onloadstart="" autoplay="" controls="" poster="/sites/Ben/Style Library/Media Player/VideoPreview.png" data-mediatitle="测试" data-init="1"><source src="/sites/Ben/CompanyIntroduction/CompanyPublicityVideo/007/007.mp4" type="video/mp4" data-label="测试">