new function() 使用

    var zwk = function(){        var def = {            name:'k',            setName:function(name){                this.name = name;                return this;            },            getName:function(){                console.log('getName:'+this.name);                return this;            }        }        return def;    }    new zwk()    .setName('kelvin')    .getName()

输出结果：