1.请问对象的属性值可以是对象吗?2.`var a = {};
var b = {'key':123};
var c = {'key':456};
a[b] = 123;
a[c] = 456;
console.log(a[b]);`
3.为什么输出是456呢?不太理解,求教
qq_花开花谢_0
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