lua中io.popen函数中的无限循环

local timeout = 5 -- 设置超时时间为5秒

local co = coroutine.create(function()
  local cmd = "your_command_here"
  local file = io.popen(cmd)
  -- 处理命令输出
end)

local timer = os.startTimer(timeout) -- 启动定时器

while true do
  local event, param = os.pullEvent()
  if event == "timer" and param == timer then
    -- 超时处理
    coroutine.resume(co, "timeout")
    break
  elseif event == "terminate" then
    -- 程序被终止处理
    coroutine.resume(co, "terminated")
    break
  end
end

local maxLines = 100 -- 设置最大输出行数为100行

local cmd = "your_command_here"
local file = io.popen(cmd)

local count = 0
for line in file:lines() do
  -- 处理命令输出
  count = count + 1
  if count >= maxLines then
    break
  end
end

file:close()