在Lua中检查本地

local socket = require("socket")

-- 检查本地网络连接
function checkNetwork()
    local host = "www.baidu.com"
    local port = 80

    local client = socket.tcp()
    client:settimeout(3) -- 设置超时时间为3秒

    local isConnected = false
    local errorMessage = ""

    -- 尝试连接指定的主机和端口
    local result, err = client:connect(host, port)

    if result then
        isConnected = true
    else
        errorMessage = err
    end

    client:close()

    return isConnected, errorMessage
end

-- 调用函数检查网络连接
local isConnected, errorMessage = checkNetwork()

if isConnected then
    print("本地网络连接正常")
else
    print("本地网络连接异常：" .. errorMessage)
end