代码写私有和公开属性

var myObject1 = (function(){
    var _name = 'sven';         //Private
    return {
        getName: function(){    //Public
            return _name;
        }
    }
})();

function myObject2 () {
    this.name = "Yorhom";        //Private
    this.getName = function (){  //Public
        return this.name;
    }
}