javascript面向对象之一

问题：怎么动态设置和读取一个对象的属性？

 

 <script type="text/javascript">
         function User(property){
             for(var i in property){
                 (function(which){
                     var p=i;
                     which["get"+p]=function(){
                         return property[p];
                     };
                     which["set"+p]=function(val){
                         property[p]=val;
                     }
                 }(this));

             }
         }

         var user=new User({name:'Bob',age:23});
         var pig=new User({sex:'man',address:'shenzhen'});
         console.dir(user);
         console.dir(pig);
         console.log(user.getname());
         console.log(pig.getsex());
     </script>