要想在针对模拟器或设备的构建之间切换，应该从标签为Overview的下拉框中选择想要的SDK。

To switch between building for the simulator or a device, choose the desired SDK from the drop-down box labeled Overview.

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选择设备(而不是模拟器)，作为建设目标在弹出在左上方的Xcode窗口。

Select Device (rather than Simulator) as the build target in the popup at the top left of the Xcode window.

youdao

选择设备(而不是模拟器)，作为建设目标在弹出在左上方的Xcode窗口。

Select Device (rather than Simulator) as the build target in the popup at the top left of the Xcode window.

youdao