【高级技巧】Lua find偏移循环：裁决之杖价目串的全部命中

local function allHits(s)
    return {string.find(s, "金条")}   -- 只拿第一处
end

-- 裁决之杖价目串里找全部"金条"出现位
local function allHits(s)
    local out, from = {}, 1
    while true do
        local p = string.find(s, "金条", from, true)
        if not p then break end
        out[#out + 1] = p             -- 命中位收集
        from = p + 4                  -- 推进偏移继续找
    end
    return out
end
sendmsg(actor, 1, "价目串金条出现 " .. #allHits(PRICE_STR) .. " 处")