【入门夯实】Lua模板插值：裁决之杖播报串的变量替换

local function render(actor, item, price)
    sendmsg(actor, 1, item .. " 今日 " .. price .. " 金"
        .. " 数量有限")               -- 每加字段多一段拼接
end

local function render(actor, tpl, vars)
    local out = string.gsub(tpl, "%{(%w+)%}", function(k)
        return tostring(vars[k] or "")
    end)
    sendmsg(actor, 1, out)
end
render(actor, "{item} 今日 {price} 金",
    {item = "裁决之杖", price = 15001})