有扬声器和耳机,我想绑定一个键在声音设备之间切换。我想无需安装额外的软件包和其他程序,因为您需要的一切都已存在。写
<alsa_output.pci-0000_00_1b.0.analog-stereo> <alsa_output.usb-C-Media_Electronics_Inc._USB_Audio_Device-00-Device.analog-stereo>
结果是一个空白行。我的大脑习惯于javascript,断然拒绝理解这种涂鸦。我非常感谢任何可以提供帮助的人。
变量状态
[1]一切都很好
name: <alsa_output.pci-0000_01_00.1.hdmi-stereo>
state: SUSPENDED
name: <alsa_output.usb-C-Media_Electronics_Inc._USB_Audio_Device-00-Device.analog-stereo>
state: SUSPENDED
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
state: RUNNING
[2]和这里
name::<alsa_output.pci-0000_01_00.1.hdmi-stereo>
state::SUSPENDED
name::<alsa_output.usb-C-Media_Electronics_Inc._USB_Audio_Device-00-Device.analog-stereo>
state::SUSPENDED
name::<alsa_output.pci-0000_00_1b.0.analog-stereo>
state::RUNNING
[3]和这里(echo“$ key :: $ value”)
line 21: <alsa_output.pci-0000_01_00.1.hdmi-stereo>: syntax error: operand expected (error token is "<alsa_output.pci-0000_01_00.1.hdmi-stereo>")
[4]错误,在我看来,循环中断了
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