应用: 拼多多
任务: 启动拼多多，进入“限时秒杀”页面，查看当前秒杀的首件商品
操作步骤:
step_id: 0
action: CLICK
step_id: 1
action: CLICK
step_id: 2
action: CLICK
step_id: 3
action: STOP