2022-01-21 08:50:21 [错误] 打开端口(/dev/ttyS5,115200)失败!
2022-01-21 09:19:43 [错误] 打开端口(/dev/ttyS5,115200)失败!
2022-01-21 13:08:34 [错误] 打开端口(/dev/ttyS5,115200)失败!