利用JS数组根据数据生成柱形图

news2024/9/21 2:24:31

要求

<html>
<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;
        }
        .box {
           display: flex; 
            width: 700px;
            height: 300px;
            border-left: 1px solid pink;
            border-bottom: 1px solid pink;
            margin: 50px auto;
            justify-content: space-around;
            align-items: flex-end;
            text-align: center;
        }

        .box>div {
            display: flex;
            width: 50px;
            background-color: pink;
            flex-direction: column;
            justify-content: space-between;
        }

        .box div span {

            margin-top: -20px;
        }

        .box div h4 {
            margin-bottom: -35px;
            width: 70px;
            margin-left: -10px;
        }
    </style>
</head>
<body>
    <script>
        //四次弹窗效果
        let arr = [] //声明一个空数组
        for (let i = 1; i <= 4; i++) {
            let num = prompt(`请输入${i}季度的数据`)
            arr.push(num)
        }
        //盒子开头
        document.write(` <div class="box">`)

        //盒子中间，利用循环打印出多个盒子
        for (let i = 0; i < arr.length; i++) {
            //输入的数组季度数据，转换成柱状图的高
            document.write(`
        <div style="height: ${arr[i]}px;">
            <span>${arr[i]}</span>
            <h4>第${i + 1}季度</h4>
        </div>`)

        }
        //盒子结尾
        document.write(` </div>`)
    </script>

</body>
</html>

输入：123 333 124 144时的结果为