{"level":"info","msg":"MClient.OnConnectHandler:MQTT连接成功","time":"2025-04-02 10:25:13.101"}
{"level":"info","msg":"MClient.OnConnectHandler:MQTT连接成功","time":"2025-04-02 11:33:39.236"}
{"level":"info","msg":"MClient.OnConnectHandler:MQTT连接成功","time":"2025-04-02 11:34:44.729"}
{"level":"info","msg":"MClient.OnConnectHandler:MQTT连接成功","time":"2025-04-02 11:54:15.049"}
{"level":"info","msg":"MClient.OnConnectHandler:MQTT连接成功","time":"2025-04-02 11:56:33.241"}
{"level":"info","msg":"MClient.OnConnectHandler:MQTT连接成功","time":"2025-04-02 11:58:29.792"}
{"level":"info","msg":"MClient.OnConnectHandler:MQTT连接成功","time":"2025-04-02 13:34:05.303"}
{"level":"error","msg":"无法打开串口 COM3: The system cannot find the file specified.","time":"2025-04-02 13:34:05.314"}
{"level":"info","msg":"MClient.OnConnectHandler:MQTT连接成功","time":"2025-04-02 13:48:03.291"}
{"level":"info","msg":"获取串口失败，设备编号：zzz，错误：serial port not found","time":"2025-04-02 13:48:03.304"}
{"level":"info","msg":"MClient.OnConnectHandler:MQTT连接成功","time":"2025-04-02 13:48:34.824"}
{"level":"info","msg":"MClient.OnConnectHandler:MQTT连接成功","time":"2025-04-02 13:53:26.827"}
{"level":"info","msg":"MClient.OnConnectHandler:MQTT连接成功","time":"2025-04-02 13:55:12.137"}
{"level":"info","msg":"MClient.OnConnectHandler:MQTT连接成功","time":"2025-04-02 13:55:29.124"}
{"level":"info","msg":"MClient.OnConnectHandler:MQTT连接成功","time":"2025-04-02 14:22:49.292"}
{"level":"info","msg":"MClient.OnConnectHandler:MQTT连接成功","time":"2025-04-02 14:24:23.908"}