get;set; 写法

 <input type="button" value="测试" onclick="demo()" />
    <script type="text/javascript">
        var test = {
            _name: "",
            set name(name) {
                this._name = name;
                alert('set');
            },
            get name() {
                alert('get');
                return this._name;
            }
        }
        function demo() {
            //test.name = "1";
            console.log(test.name);
        }
    </script>