2021-10-08 09:08:12 [调试] 打开端口(/dev/ttyS2,9600)成功!
2021-10-08 11:27:17 [调试] 打开端口(/dev/ttyS2,9600)成功!
2021-10-08 11:30:48 [调试] 打开端口(/dev/ttyS2,9600)成功!
2021-10-08 11:31:09 [调试] 打开端口(/dev/ttyS2,9600)成功!
2021-10-08 11:32:40 [错误] 打开端口(/dev/ttyS2,9600)失败!
2021-10-08 11:33:04 [调试] 打开端口(/dev/ttyS2,9600)成功!