运行日志：分级过滤只看该看的行

-- 错误：全服一个级别，关键报错被刷屏淹没
function recLog(msg)
    table.insert(logAll, msg)
end

local LV = {DEBUG = 1, INFO = 2, WARN = 3, ERROR = 4}
local cur = tonumber(getsysvar("logLevel") or "2")
local function recLog(lv, mod, msg)
    if LV[lv] < cur then return end
    local line = os.date("%H:%M:%S")
        .. "[" .. lv .. "][" .. mod .. "] " .. msg
    table.insert(logAll, line)
end
recLog("INFO", "shop", "玩家购买成功")
recLog("ERROR", "net", "协议回包超时")