if points.len() < 3 {
git clone https://github.com/paultendo/confusable-vision
，这一点在新收录的资料中也有详细论述
更多精彩内容，关注钛媒体微信号（ID：taimeiti），或者下载钛媒体App。业内人士推荐新收录的资料作为进阶阅读
Metadata is used for the Media Session API (lock screen controls, browser media UI) and can contain arbitrary additional fields: