2020-08-22 09:23:38 [错误] 打开端口(COM2,9600)失败!
2020-08-22 09:48:49 [错误] 打开端口(COM2,9600)失败!
2020-08-22 10:05:24 [错误] 打开端口(COM2,9600)失败!
2020-08-22 11:13:38 [错误] 打开端口(COM2,9600)失败!
2020-08-22 11:14:53 [错误] 打开端口(COM2,9600)失败!
2020-08-22 14:19:08 [错误] 打开端口(COM2,9600)失败!
2020-08-22 14:54:34 [错误] 打开端口(COM2,9600)失败!
2020-08-22 14:59:38 [错误] 打开端口(COM2,9600)失败!
2020-08-22 15:00:49 [错误] 打开端口(COM2,9600)失败!