帮会义诊：医师坐堂的免费疗伤

local function freeClinic(actor)
    local t = os.date("*t")
    if t.wday ~= 4 or t.hour < 20 or t.hour >= 22 then
        sendmsg(actor, 1, "义诊为周三 20 到 22 点")
        return
    end
    local n = getplayvar(actor, "clinicN") or 0
    if n >= 2 then
        sendmsg(actor, 1, "本场限领 2 份")
        return
    end
    setplayvar(actor, "clinicN", n + 1)
    giveitem(actor, 9501, 1)
end

local function openClinic()
    sendcentermsg(0, "义诊开启：医师坐堂 2 小时，免费包扎")
end