<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div id="demo">
<input type="text" v-model="searchName">
<ul>
<li v-for="(p,index) in filterPersons":key="index">
{{index}}---{{p.name}}---{{p.age}}
</li>
</ul>
<button @click="setOrderType(1)">年龄升序</button>
<button @click="setOrderType(2)">年龄降序</button>
<button @click="setOrderType(0)">原本顺序</button>
</div>
</body>
<script src="../js/vue.js"></script>
<script>
new Vue({
el:'#demo',
data:{
searchName:'',
orderType:0,//0代表原本顺序，1代表升序，2代表降序
persons:[
{name:'Tom',age: 18},
{name:'coc',age: 16},
{name:'jjj',age: 17},
{name:'xxx',age: 19},
]
},
computed:{
filterPersons(){
//取出相关的数据
const {searchName,persons,orderType} = this
//最终需要显示的数组
let fPersons;
//对persons进行过滤
fPersons=persons.filter(p => p.name.indexOf(searchName)!== -1)
//排序
if (orderType!==0){
fPersons.sort(function (p1,p2) { //如果返回负数，p1在前，返回正数，p2在前
//1代表升序，2代表降序
if (orderType===2){
return p2.age-p1.age;
} else {
return p1.age-p2.age;
}
})
}
return fPersons;
}
},
methods:{
setOrderType(orderType){
this.orderType = orderType;
}
}
})
</script>
</html>
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