nodemcu获取客户端端口ip

nodemcu作为服务器时候，可以获取到客户端端口和ip

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-- a simple http server
srv=net.createServer(net.TCP)
srv:listen(80,function(conn)
conn:on("receive",function(client,payload)
print(payload)
client:send("<h1> Hello, NodeMcu.1</h1>")
local ip, port = client:getpeer();
print("port:"..port.." ip:"..ip);
client:send("port:"..port.." ip:"..ip);
--client:close();
end)
conn:on("sent",function(conn)
print("close");
conn:close();
end)
end)