【入门夯实】带参指令：triggerchat的消息参数化解析

local function onChatBad(actor, msg)
    local cmd = string.sub(msg, 1, 6)
    local arg = string.sub(msg, 8, 20)
    sendmsg(actor, 1, cmd .. "/" .. arg)
end

local function onChat(actor, msg)
    actor = getplayerbyname(actor)
    local cmd, args = string.match(msg, "^@(%S+)%s+(.+)$")
    if cmd == "寄售" then
        local itemName, price = string.match(args or "", "^(%S+)%s+(%d+)$")
        if itemName == nil then
            sendmsg(actor, 1, "格式：@寄售 物品名 价格。")
            return
        end
        sendmsg(actor, 1, "寄售[" .. itemName .. "]定价 " .. price .. " 金币，已挂单。")
    end
end

local function parseTransfer(args)
    local to, gold, memo = string.match(args, "^(%S+)%s+(%d+)%s+(.*)$")
    if memo == nil then
        to, gold = string.match(args, "^(%S+)%s+(%d+)$")
    end
    return to, gold, memo
end