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通知发送通知类别,提示和版本参数是什么意思?
该notify-send命令手册说 Usage: notify-send [OPTION...] <SUMMARY> [BODY] - create a notification Help Options: -?, --help Show help options Application Options: -u, --urgency=LEVEL Specifies the urgency level (low, normal, critical). -t, --expire-time=TIME Specifies the timeout in milliseconds at which to expire the notification. -i, --icon=ICON[,ICON...] Specifies an icon filename or stock icon …