技能熟练度：使用次数累积的熟练升级

local function onCast(actor, skillId)
    local key = "prof" .. skillId
    local n = (getplayvar(actor, key) or 0) + 1
    setplayvar(actor, key, n)
    local lv = math.min(math.floor(n / 100), 5)
    if lv > (getplayvar(actor, key .. "Lv") or 0) then
        setplayvar(actor, key .. "Lv", lv)
        sendmsg(actor, 1, "技能熟练升到 " .. lv .. " 级")
    end
end

local function queryProf(actor, skillId)
    local n = getplayvar(actor, "prof" .. skillId) or 0
    local lv = math.min(math.floor(n / 100), 5)
    sendmsg(actor, 1, "已施放 " .. n .. " 次，熟练 " .. lv .. " 级")
end