79 lines
1.7 KiB
HTML
79 lines
1.7 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Document</title>
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<style>
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*{
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margin: 0;
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padding: 0;
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}
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#app{
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text-align: center;
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}
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div,li{
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font-size: 22px;
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}
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ul{
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list-style: none;
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display: inline-block;
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margin: 20px 50px;
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}
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li{
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margin: 50px 200px;
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}
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div{
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margin: 20px 0;
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}
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</style>
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<!--
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注意点
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1、可以使用插值语法输出对象数组里面的值
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2、统计数据格式[{}]
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-->
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</head>
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<body>
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<div id="app">
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<div>统计所现有的书籍藏书量</div>
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<ul>
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<li v-for="books in boks">{{books.bn}}</li>
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</ul>
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<ul>
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<li v-for="num in boks">{{num.sum}}</li>
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</ul>
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<div>总共藏书{{C_Book}}</div>
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</div>
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</body>
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<script src="../00-tools/JavaScript/vue.js"></script>
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<script>
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let count=0
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const vue=new Vue({
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el:"#app",
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data:{
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boks:[
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{bid:01,bn:"朝花夕拾",sum:20},
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{bid:02,bn:"战争与和平",sum:77},
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{bid:03,bn:"西游记",sum:32},
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{bid:04,bn:"鲁滨逊漂流记",sum:88},
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{bid:05,bn:"朝花夕拾",sum:45},
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{bid:06,bn:"骆驼祥子",sum:45},
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{bid:07,bn:"巴黎圣母院",sum:44}
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]
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},
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computed:{
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C_Book(){
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let count=0
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for(let bk of this.boks){
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count+=bk.sum
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}
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// for (let index = 0; index < this.boks.length; index++) {
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// console.log(index);
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// }
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return count
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}
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}
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})
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</script>
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</html> |