<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>计算属性</title>
<script src="https://cdn.jsdelivr.net/npm/vue@2.7.14"></script>
</head>
<body>
<div id="app">
总价：{{prices}}
</div>
<script>
var app=new Vue({
el:'#app',
data:{
//一般通过接口获取数据
package1:[
{
name:'aaff',
price:555,
count:3
},{
name:'as',
price:100,
count:1
}
],
package2:[
{
name:'3',
price:535,
count:3
},{
name:'dds',
price:145,
count:1
}
],
},
computed:{
prices:function(){
var p=0;
for(var i=0;i<this.package1.length;i++)
p+=this.package1[i].price*this.package1[i].count;
for(var i=0;i<this.package2.length;i++)
p+=this.package2[i].price*this.package2[i].count;
return p;
}
}
})
</script>
</body>
</html>