JQuery之proxy实现绑定代理方法

var A = function(){   this.star = functiont(){};   this.beg = function(){    var that = this;    $node.click(function(){       //this.start();//这里的this指代的是$node对象        that.start();    });  };}

$node.on('click',$.proxy(function(){   this.start();},this)