cocos按钮监听动画结束

 // Learn TypeScript:

    
 //  - https://docs.cocos.com/creator/manual/en/scripting/typescript.html
    
 // Learn Attribute:
    
 //  - https://docs.cocos.com/creator/manual/en/scripting/reference/attributes.html
    
 // Learn life-cycle callbacks:
    
 //  - https://docs.cocos.com/creator/manual/en/scripting/life-cycle-callbacks.html
    
  
    
 const { ccclass, property } = cc._decorator;
    
  
    
 @ccclass
    
 export default class Ui extends cc.Component {
    
  
    
     @property(cc.Label)
    
     label: cc.Label = null;
    
  
    
     @property
    
     text: st