【入门夯实】指令失灵：全角空格让string.match匹配失败

local function onChat(actor, msg)
    if string.match(msg, "^%s*@领取奖励%s*$") then
        giveReward(actor)
    end
end

local function normalize(msg)
    local s = string.gsub(msg, "\227\128\128", "")
    s = string.gsub(s, "^%s+", "")
    s = string.gsub(s, "%s+$", "")
    return string.lower(s)
end
local function onChat(actor, msg)
    actor = getplayerbyname(actor)
    if string.match(normalize(msg), "^@领取奖励$") then
        if not takeitem(actor, "祖玛头像", 1) then
            sendmsg(actor, 1, "领取奖励需要 1 个祖玛头像。")
            return
        end
        giveitem(actor, "金条", 2)
        sendmsg(actor, 1, "兑换成功：祖玛头像换 2 根金条。")
    end
end

local function normalizeEx(msg)
    local s = string.gsub(msg, "！", "!")
    return s
end