应用: 抖音
任务: 打开抖音，浏览首页第三个视频，评论“真好”
操作步骤:
step_id: 0
action: CLICK
step_id: 1
action: SWIPE
step_id: 2
action: SWIPE
step_id: 3
action: CLICK
step_id: 4
action: CLICK
step_id: 5
action: TYPE
type_text: 真好
step_id: 6
action: CLICK
step_id: 7
action: STOP