问Lua中的Client-Server聊天

EN

local socket = require("socket")
local server = socket.try(socket.bind("*", 1234))
local ip, port = server:getsockname()
while 1 do
    local client = server:accept()
    client:settimeout(10)
    local line, err = client:receive()
    print (line)
    print("Enter input:")
    if not err then client:send(io.read().."\n")  end
    client:close()
end  

local host, port = "*", 1234
local socket = require("socket")
local tcp = assert(socket.tcp())
tcp:connect(host, port);
tcp:send("Connection Established\n");
while 1 do
    local s, status, partial = tcp:receive()
    print(s or partial)
    print("Enter input:")
    tcp:send(io.read().."\n");
    if status == "closed" then break end 
end
tcp:close()