for k, v pairs(remoteData.assets) do
    -- 计算逻辑
end

function calcLogic()
    local key_table = {}
    for k,_ in pairs(remoteData.assets) do
        table.insert(key_table, k)
    end
    local index = 1
    local total = #key_table        -- 总数量

    -- 检验结束回调
    local function checkFinished()
        self._processFunc(100, "检查更新...(100%)")
    end

    -- 检测一条
    local function checkOne(index)
        print("检测索引"..index)
    end

    -- update
    local function updateHandler()
        for i=1,1000 do
            if index <= total then
                checkOne(index)
                index = index + 1
            else
                -- 循环终止
                if self._checkTimer then
                    cc.Director:getInstance():getScheduler():unscheduleScriptEntry(self._checkTimer)
                end
                self._checkTimer = nil
                checkFinished()
                return
            end
        end
        -- 刷新进度条
        local num = math.floor(index * 100 / total)
        self._processFunc(num, "资源重新校验中...("..num .."%)")
    end

    -- 分帧检验开启
    if self._checkTimer == nil then
        self._checkTimer = cc.Director:getInstance():getScheduler():scheduleScriptFunc(updateHandler, 0, false)
    end
end