2022-05-26 16:04:02 [错误] 打开端口(COM5,9600)失败!
2022-05-26 17:31:30 [错误] 打开端口(COM5,9600)失败!
2022-05-26 17:33:22 [错误] 打开端口(COM5,9600)失败!
2022-05-26 18:01:46 [错误] 打开端口(COM5,9600)失败!
2022-05-26 18:02:09 [错误] 打开端口(COM5,9600)失败!
2022-05-26 18:08:02 [错误] 打开端口(COM5,9600)失败!