80 lines
1.8 KiB
HTML
80 lines
1.8 KiB
HTML
<!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>Document</title>
|
|
<style>
|
|
*{
|
|
margin: 0;
|
|
padding: 0;
|
|
}
|
|
#app>div{
|
|
font-size: 20px;
|
|
text-align: center;
|
|
margin: 20px;
|
|
font-weight: bolder;
|
|
}
|
|
ul{
|
|
list-style: none;
|
|
text-align: center;
|
|
}
|
|
li{
|
|
text-align: center;
|
|
display: inline-block;
|
|
}
|
|
</style>
|
|
</head>
|
|
<body>
|
|
<div id="app">
|
|
<div>总数量：{{PrintSummer}}</div>
|
|
<ul>
|
|
<li :style="isChangeStyle()" v-for="list in item">{{list}}</li>
|
|
</ul>
|
|
</div>
|
|
</body>
|
|
<script src="../00-tools/JavaScript/vue.js"></script>
|
|
<script>
|
|
let sum=0;
|
|
let vue=new Vue({
|
|
el:"#app",
|
|
data:{
|
|
item:[
|
|
{bid:01,name:"vue实验指南",count:66},
|
|
{bid:02,name:"C Primser",count:13},
|
|
{bid:01,name:"零基础学python",count:34},
|
|
{bid:01,name:"java程序设计",count:55},
|
|
{bid:01,name:"python从入门到精通",count:76},
|
|
],
|
|
isFontSize:"20px",
|
|
isColor:"#f00",
|
|
},
|
|
methods: {
|
|
isChangeStyle(){
|
|
return {fontSize:this.isFontSize,color:this.isColor}
|
|
}
|
|
},
|
|
computed:{
|
|
|
|
PrintSummer(){
|
|
//推荐写法： for(let book of this.item){
|
|
// sum+=book.count;
|
|
// }
|
|
// for(let book in this.item){
|
|
// sum+=this.item[book].count
|
|
// }
|
|
// return sum;
|
|
// for(let i=0;i<this.item.length;i++){
|
|
// sum+=this.item[i].count
|
|
// }
|
|
// return sum
|
|
for(let book of this.item){
|
|
sum+=book.count
|
|
}
|
|
return sum
|
|
}
|
|
}
|
|
})
|
|
</script>
|
|
</html> |