var arr=[{id:1,name:'xx',age:18},{id:2,name:'xx',age:28},{id:3,name:'xx',age:32},{id:4,name:'xx',age:12},{id:5,name:'xx',age:23 arr=[{id:1,name:'xx',age:18},{id:2,name
阅读背景：
根据数组内对象元素的值进行排序
来源：互联网
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