Merge branch 'master' into 'master'

关掉任务
打开
Merge branch 'master' into 'master'

Master
format by goimports
use origin websocket lib
Merge branch 'de' into 'master'

Dev format

little change
add update container
Merge branch 'update' into 'master'

增加update

本质就是把一个指定版本更新成另外个指定版本, 反过来用就是rollback