LuatOS/demo/fs/Air105/main.lua

-- LuaTools需要PROJECT和VERSION这两个信息
PROJECT = "fsdemo"
VERSION = "1.0.0"

log.info("main", PROJECT, VERSION)

-- sys库是标配
_G.sys = require("sys")

--添加硬狗防止程序卡死
if wdt then
    wdt.init(15000)--初始化watchdog设置为15s
    sys.timerLoopStart(wdt.feed, 10000)--10s喂一次狗
end

local function fs_test()
    sys.wait(100)
    -- 文件读取
    local f = io.open("/boot_time", "rb")
    local c = 0
    if f then
        local data = f:read("*a")
        log.info("fs", "data", data, data:toHex())
        c = tonumber(data)
        f:close()
    end
    -- 文件写入
    log.info("fs", "boot count", c)
    c = c + 1
    f = io.open("/boot_time", "wb")
    --if f ~= nil then
    log.info("fs", "write c to file", c, tostring(c))
    f:write(tostring(c))
    f:close()
    --end

    -- 文件追加
    f = io.open("/abc", "a")
    if f then
        log.info("fs", "open with 'a' ok")
        f:write("abc")
        f:close()
    else
        log.info("fs", "open with 'a' fail")
    end

    if fs then
        log.info("fsstat", fs.fsstat(""))
    end

    -- 读取刷机时加入的文件, 并演示按行读取
    -- 刷机时选取的非lua文件, 均存放在/luadb/目录下, 单层无子文件夹
    f = io.open("/luadb/abc.txt", "a")
    if f then
        while true do
            local line = f:read("l")
            if not line or #line == 0 then
                break
            end
            log.info("fs", "read line", line)
        end
        f:close()
        log.info("fs", "close f")
    else
        log.info("fs", "pls add abc.txt!!")
    end
end


-- 每次开机,把记录的数值+1
sys.taskInit(fs_test)

-- 用户代码已结束---------------------------------------------
-- 结尾总是这一句
sys.run()
-- sys.run()之后后面不要加任何语句!!!!!