cocos creator 倒計時

    properties: {
        time: cc.Label
    },

    start() {
        this.time.string = 20;//如果要對倒計時的時間重新賦值
        this.schedule(this.doCountdownTime, 1);
    },

    //倒計時
    doCountdownTime() {
        //每秒更新顯示信息
        if (this.time.string > 0) {
            this.time.string -= 1;
            this.countDownShow(this.time.string);
        }
    },

    countDownShow(temp) {
        if (temp <= 0) {
            this.time.string = 0;
            //倒計時結束
            this.unschedule(this.doCountdownTime);
            //執行其他操作
        }
    },