//以下为连接过程
AT+CWMODE=1

AT+CWJAP="WiFi名称","WiFi密码" //自己填写
//从这开始
AT+CIPSNTPCFG=1,8,"ntp1.aliyun.com"

AT+MQTTUSERCFG=0,1,"NULL","esp8266&a1QZ2VjPWD5","CE262433E3750D21F25D6B66F03EBE8A41167E61",0,0,""

AT+MQTTCLIENTID=0,"123456|securemode=3\,signmethod=hmacsha1\,timestamp=789|"

AT+MQTTCONN=0,"a1QZ2VjPWD5.iot-as-mqtt.cn-shanghai.aliyuncs.com",1883,1

//以下为数据传输过程
AT+MQTTPUB=0,"/sys/a1QZ2VjPWD5/esp8266/thing/event/property/post","{\"method\":\"thing.service.property.set\"\,\"id\":\"2012934115\"\,\"params\":{\"mtemp\":12\,\"mhumi\":13}\,\"version\":\"1.0.0\"}",1,0
 
//注意：JSON格式，，字符串遇到逗号(，)和双引号(“)需要加转义字符
//"mtemp":12,"mhumi":13    为参数
//断开链接

AT+MQTTCLEAN=0