应用: 淘宝
任务: 打开淘宝，找到数码产品频道
操作步骤:
step_id: 0
action: CLICK
step_id: 1
action: CLICK
step_id: 2
action: TYPE
type_text: 数码产品
step_id: 3
action: CLICK
step_id: 4
action: STOP