-- 如果运营商自带的DNS不好用，可以用下面的公用DNS
-- socket.setDNS(nil,1,"223.5.5.5")
-- socket.setDNS(nil,2,"114.114.114.114")
require "socket_demo"

dtuDemo()
-- require "ntp_demo"
-- ntpDemo()
-- require "http_demo"
-- require "mqtt_demo"