【入门夯实】祖玛教主伤害榜：数字被存成字符串的排序错乱

local function onBossHit(actor, damage)
    actor = getplayerbyname(actor)
    local cur = tonumber(getplayvar(actor, "HUMAN", "ZumaDmg")) or 0
    cur = cur + tonumber(damage)
    setplayvar(actor, "HUMAN", "ZumaDmg", cur, 1)
    local top = tonumber(getsysvar("ZumaTop")) or 0
    if cur > top then
        setsysvarex("ZumaTop", cur, 1)
    end
end

local function buildRankKey(actor, round)
    actor = getplayerbyname(actor)
    local key = string.format("Rank_%s_%05d", tostring(actor), tonumber(round) or 0)
    return key
end