Lua中遍历文件操作代码实例（lua遍历userdata元素）越早知道越好

getinfo=io.popen(‘dir https://www.jb51.net//file /b /s’)
all=getinfo:read(‘*all’)

local filenameList=io.open(“filename.txt”, “wb”)
filenameList:write(“Path/n”)
filenameList:close()

filenameList=io.open(“filename.txt”, “a”)
filenameList:write(all)
io.close(filenameList)
io.close(getinfo)

local filenameList=tab.Open([[https://www.jb51.net/filename.txt]], “Path”, false)

for index, Row in ipairs(filenameList) do
local pathlist=Row[“Path”]
local rowString=string.find(pathlist, “.txt”)
if rowString ~=nil and rowString ~=”” then
moon.CheckRowlength(pathlist, pathlist)
end
end

io.popen(‘dir /b /s’)是windows下的，通过执行命令行dir获得
io.popen(‘ls’)是linux下的