从网上找到的例子用vue来实现数组对象排序

<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<meta http-equiv="X-UA-Compatible" content="ie=edge">
	<title>vue</title>
	<script src="https://cdn.bootcss.com/vue/2.4.2/vue.min.js"></script>
</head>
<body>
	<div class="app">
			vue
			<hr>
			<ol>
				<li v-for="number in sortNumbers">{{number}}</li>
			</ol>
			<hr>
			<ul>
				<li v-for="(student,index) in  sortstudents">{{index+1}}:{{student.name}}-{{student.age}}</li>
			</ul>
	</div>  
		<script>
				new Vue({
					el:'.app',
					data:{
								numbers:[5 ,8, 88, 56, 28, 61, 9],
								students:[
									 {name:'zs',age:'38'} ,
									 { name:'ls',age:'29'},
									 {name:'mike',age:'32'},
								]
					 },
					computed:{
							sortNumbers:function(){
										return this.numbers.sort( sortNumbers);
							},
							sortstudents:function(){
										return sortByKey(this.students,'age')
							}
						}
			 });
			function sortNumbers(a,b){
					return a-b;
			}
			//数组对象排序
			function sortByKey(array,key){
					return array.sort(function(a,b){
							var x = a[key];
							var y = b[key];
							console.log(x,y)
							return((x>y)?-1:((x<y)?1:0));
					})
			}
	</script>
</body>
</html>