实现对象继承的圣杯模式

方法1：

function inherit(target,origin){
      function F(){}
      F.prototype = origin.prototype;
      target.prototype = new F();
      target.prototype.constructor = target;
      target.prototype.uber = origin;
   }
   function Father(name){this.name}
   function Son(){}
   Father.prototype.eat = function(){console.log("吃鸡")}
  inherit(Son,Father);
  var s1 = new Son();
  console.log(s1.__proto__)
  console.log(s1.uber)

方法2：

var inherit = (function(){
  function F(){};
  return function(target,origin){
      F.prototype = origin.prototype;
      target.prototype = new F();
      target.prototype.constructor = target;
      target.prototype.uber = origin;
  }
})();
  function Father(name){this.name}
  function Son(){}
  Father.prototype.eat = function(){console.log("吃鸡")}
  inherit(Son,Father);
  var s1 = new Son();
  console.log(s1)