显示和隐藏主菜单
在 Linux 和 Windows 中，可以隐藏主菜单栏以节省屏幕空间。选择View ，然后清除Show Menu Bar 复选框。
Qt Creator" src="images/qtcreator-without-menubar.webp" title="无主菜单的 Qt Creator"/>
Qt Creator 这样主菜单栏就不会显示了。
要重新显示主菜单，请选择Ctrl+Alt+M。
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