38 lines
871 B
HTML
38 lines
871 B
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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</head>
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<body>
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<div id="app">
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你所购买的图书需要{{total}}元
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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 sum=0
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let fun=new Vue({
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el:"#app",
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data:{
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books:[
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{bid:"01",bname:"会计基础与进阶",bprice:30},
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{bid:"02",bname:"C语言从入门到精通",bprice:50},
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{bid:"03",bname:"C语言基础",bprice:200},
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{bid:"04",bname:"java从小白到大神",bprice:122},
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]
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},
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computed:{
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total:function(){
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for(let book of this.books){
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sum+=book.bprice
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}
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return sum
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}
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}
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}
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)
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</script>
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</html> |