【策划架构】Lua分页切片：沙巴克战备仓库500件的翻页设计

local function slice(list, page, size)
    local from = (page - 1) * size        -- 从0起漏首件
    local to = from + size - 1            -- 越界不钳制
    return {unpack(list, from, to)}       -- from=0 得空表
end

local function pageOf(list, page, size)
    local pages = math.ceil(#list / size) -- 页数向上取整
    page = math.max(1, math.min(page, pages))
    local from = (page - 1) * size + 1
    local to = math.min(page * size, #list)
    return {unpack(list, from, to)}, pages
end
local goods = {}
for i = 1, 500 do goods[i] = "沙巴克战备" .. i end
sendmsg(actor, 1, "战备仓库共 " .. select(2, pageOf(goods, 1, 20))
    .. " 页")