目录实训背景环境准备实训步骤任务1：编写 python 守护进程代码任务2：配置 systemd 服务任务3：测试与验证任务4：管理服务实训总结知识要点扩展优化建议实训背景
I am trying to implement a split view controller like UISplitViewController on the iPad, but I don\'t want the left pane to be hidden when the device is in portrait orientation.
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