应用: 闲鱼
任务: 打开闲鱼，搜索“篮球鞋”，点击商品，留言“尺码多少？”
操作步骤:
step_id: 0
action: CLICK
step_id: 1
action: CLICK
step_id: 2
action: TYPE
type_text: 篮球鞋
step_id: 3
action: CLICK
step_id: 4
action: CLICK
step_id: 5
action: CLICK
step_id: 6
action: CLICK
step_id: 7
action: TYPE
type_text: 尺码多少?
step_id: 8
action: CLICK
step_id: 9
action: STOP