2020-09-16 11:05:36 [错误] 打开端口(COM2,9600)失败!
2020-09-16 11:25:58 [错误] 打开端口(COM2,9600)失败!
2020-09-16 11:44:37 [错误] 打开端口(COM2,9600)失败!
2020-09-16 11:45:24 [错误] 打开端口(COM2,9600)失败!
2020-09-16 11:49:10 [错误] 打开端口(COM2,9600)失败!
2020-09-16 12:01:01 [错误] 打开端口(COM2,9600)失败!
2020-09-16 13:49:16 [错误] 打开端口(COM2,9600)失败!
2020-09-16 15:03:06 [错误] 打开端口(COM2,9600)失败!