onLoad: function () {
this.time = 0 ;
this.counting = false ;
this.getComponent(cc.Label).string = this.counting;
this.startgame.on('start',this.startcount,this.node); //监听1
// this.startcount(); //直接执行
},
startcount:function(){
this.counting = true ;
this.getComponent(cc.Label).string = this.counting ;
},
update:function (dt) {
if (this.counting) {
this.time += dt;
this.getComponent(cc.Label).string = this.time.toFixed(2) + ' s';
}
}
备注中“直接执行”,startcount 可以将this.counting变成true.从而执行update,但是从监听1进入,则update不会执行,这是为什么。。。确认监听到事件了,label有显示