2021-10-07 08:21:53 [错误] 打开端口(/dev/ttyS5,115200)失败!
2021-10-07 15:13:53 [错误] 打开端口(/dev/ttyS5,115200)失败!
2021-10-07 19:40:37 [错误] 打开端口(/dev/ttyS5,115200)失败!