Lua 实现倒计时功能

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--Lua 实现倒计时功能local size = CCDirector:sharedDirector():getWinSize()local scheduler = CCDirector:sharedDirector():getScheduler()local run_logic = nil--时 分 秒 数值local hour = 1local minute = 0local second = 0--将int类型转换为string类型hour = hour..""minute = minute..""second = second..""--当显示数字为个位数时，前位用0补上if string.len(hour) == 1 then    hour = "0"..hourendif string.len(minute) == 1 then    minute = "0"..minuteendif string.len(second) == 1 then    second = "0"..secondend--创建时间标签用以显示local time = CCLabelTTF:create("倒计时："..hour..":"..minute..":"..second,"Thonburi",35)time:setColor(ccc3(0,255,0))time:setPosition(ccp(size.width*0.5,size.height*0.6))mainLayer:addChild(time,1,123)--倒计时更新函数local function anticlockwiseUpdate()    local time = mainLayer:getChildByTag(123)    time = tolua.cast(time,"CCLabelTTF")    second = second-1    if second == -1 then        if minute ~= -1 or hour ~= -1 then            minute = minute-1            second = 59            if minute == -1 then                if hour ~= -1 then                    hour = hour-1                    minute = 59                    if hour == -1 then                        --倒计时结束停止更新                        if run_logic ~= nil then                            scheduler:unscheduleScriptEntry(run_logic)                            run_logic = nil                        end                        second = 0                        minute = 0                        hour = 0                        time:setColor(ccc3(255,0,0)) --以红色标识结束                    end                end            end        end    end        second = second..""    minute = minute..""    hour = hour..""        if string.len(second) == 1 then        second = "0"..second    end        if string.len(minute) == 1 then        minute = "0"..minute    end        if string.len(hour) == 1 then        hour = "0"..hour    end    time:setString("倒计时："..hour..":"..minute..":"..second)end--开始倒计时 每1秒调用一次anticlockwiseUpdate方法run_logic = scheduler:scheduleScriptFunc(anticlockwiseUpdate,1,false)local scene = CCScene:create()scene:addChild(mainLayer)CCDirector:sharedDirector():runWithScene(scene)