JavaScript知识点之“private&public”

 var person = function () {
     // Private
     var name = "Robert";
     return {//return里面的都是public的
         getName : function () {
             return name;
         },
         setName : function (newName) {
             name = newName;
         }
     };
 }();
 alert(person.name); // Undefined
 alert(person.getName()); // "Robert"
 person.setName("Robert Nyman");
 alert(person.getName()); // "Robert Nyman"