function Rect(config){}Rect.prototype.area = function(){ alert(&quot；我是父方法&quot；)；}function myRect(config){ arguments.callee.prototype.constructor.prototype.area()；//子类里调用父方法area arguments.callee.prototype.area()；//子类里调用重载方法area}myRect.prototype = new Rect()；myRect.prototype.area = function(){ alert(&quot；我是重载方法&quot；)；}var rectObj = new myRect()；rectObj.constructor.prototype.area()；//子类实例调用父类方法arearectObj.area()；//子类实例调用子类方法area。