cocos 加速action 动作调节方案 cc.speed

//战斗加速(播放动作可能全部要封装)
https://forum.cocos.com/t/action/54371/3
 var speed = cc.speed(cc.moveTo(10, cc.p(900, 900)), 1);
    this.label.node.runAction(speed);
    //speed._speed = 3;
    speed.setSpeed(3);