关于#esp#的问题，如何解决？(标签-阿里云|关键词-TCP)

ESP8266接入阿里云问题，格式有参考例程和网上格式也没找到问题

"product_key": "a1QLV8KGHk9",
"device_name": "D001",
"device_secret": "b6f9fde24848632f5d8b17601f609d00"

①重启设备：AT+RST

②设置station模式：AT+CWMODE=3

③连接服务器：AT+CIPSTART="TCP","a1QLV8KGHk9.iot-as-mqtt.cn-shanghai.aliyuncs.com",1883

④连接WiFi：AT+CWJAP="Tobbie","abcd123456"

⑤配置用户属性：AT+MQTTUSERCFG=0,1,"123456|securemode=3,signmethod=hmacsha1,timestamp=256|","D001&a1QLV8KGHk9","80DB0B8C69AA828F90C3ADCA5DE3A193C11C8D1A",0,0,""