2022-07-12 20:40:41 [错误] 打开端口(COM1,9600)失败!
2022-07-12 20:40:42 [错误] 打开端口(COM1,9600)失败!
2022-07-12 20:42:13 [错误] 打开端口(COM1,9600)失败!
2022-07-12 21:43:38 [错误] 打开端口(COM1,9600)失败!
2022-07-12 21:57:50 [错误] 打开端口(COM1,9600)失败!
2022-07-12 21:57:51 [错误] 打开端口(COM1,9600)失败!