【入门夯实】脚本卡死：while漏推进与循环上限保险

local function notifyAllBad(list)
    local i = 1
    while list[i] do
        sendmail("#" .. list[i], 9030, "沙巴克集结", "今晚 8 点攻城，勿迟。", "")
    end
end

local function notifyAll(actor, list)
    actor = getplayerbyname(actor)
    local i = 1
    local sent = 0
    while list[i] and sent < 500 do
        sendmail("#" .. list[i], 9030, "沙巴克集结", "今晚 8 点攻城，勿迟。", "")
        sent = sent + 1
        i = i + 1
    end
    sendmsg(actor, 1, "集结通知已发 " .. sent .. " 人。")
end

local function notifyByFor(list)
    for i = 1, math.min(#list, 500) do
        sendmail("#" .. list[i], 9030, "沙巴克集结", "今晚 8 点攻城。", "")
    end
end