应用: 淘宝
任务: 打开淘宝,去淘宝秒杀，选择一份零食，加入到购物车
操作步骤:
step_id: 0
action: CLICK
step_id: 1
action: CLICK
step_id: 2
action: CLICK
step_id: 3
action: CLICK
step_id: 4
action: CLICK