1、普通形式
<script>
var stu = new Object();
stu.name = "ww";
console.log(stu);//{name: "ww"}
</script>
2、特殊形式：数字或者变量
<script>
var stu = new Object();
stu.name = "ww";
var aaa = "age";
stu[aaa] = 19;
stu[0] = "男";
console.log(stu);//{0: "男", name: "ww", age: 19}
</script>
原文：http://www.cnblogs.com/wuqiuxue/p/7851468.html