测试动态增多属性

测试动态增加属性

function f(name,age){this.name=name;this.age=age;this.addAge=function(){alert("cheng")};}var p=new f("tom",12);alert(p.name);var s=new f("tom",16);s.city="shandong";alert(p.city);alert(typeof(s.city));