function Pig() {};
Pig.prototype={ init:function () {};
move:function () {};
render:function(){ this.move(); console.log(this)
......
}:
}var pigPlayer=new Pig();
setInterval(pigPlayer.render,1000)大概结构是这样的
调用move报错
然后打印出this=window
泛舟湖上清波郎朗
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