应用: 腾讯会议
任务: 使用腾讯会议，点击‘加入会议’选项，输入会议号‘888-777-666’加入
操作步骤:
step_id: 0
action: CLICK
step_id: 1
action: CLICK
step_id: 2
action: TYPE
type_text: 888-777-666
step_id: 3
action: CLICK
step_id: 4
action: CLICK
step_id: 5
action: CLICK
step_id: 6
action: CLICK