之前用Youtube的时候，在功能选单按下 付费会员，
页面都是空白的，
今天发现里面有内容了，截图如下:
https://i.imgur.com/CQaSGml.png
相关说明网页:
Become a channel member on the main YouTube app and site
https://support.google.com/youtube/answer/6304294
这篇应该也是相关的:
YouTube introduces channel memberships, merchandise and premieres
Sarah [email protected] / Jun 22, 2018
https://goo.gl/b7SZac