【入门夯实】Lua倒计时：裁决之杖限时商店的剩余时间拆解

local function left(actor, endAt)
    sendmsg(actor, 1, "剩余 " .. endAt - os.time() .. " 秒")
    -- 172800秒，玩家根本读不懂
end

local function left(actor, endAt)
    local d = endAt - os.time()
    if d <= 0 then return "已结束" end
    local day = math.floor(d / 86400)
    local hour = math.floor(d % 86400 / 3600)
    local min = math.floor(d % 3600 / 60)
    return day .. "天" .. hour .. "时" .. min .. "分"
end
sendmsg(actor, 1, "裁决之杖限时商店" .. left(actor, END_AT))