onclick/js0519-4.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>js 練習</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        .container {
            margin-top: 30px;
            font-size: medium;
        }

        h2 {
            text-align: center;
        }

        table {
            width: 70%;
            text-align: center;
            border: 1px solid lightblue;
            margin: 0 auto;
        }

        td {
            height: 70px;
        }

        tr,
        td {
            border: 1px solid lightblue;
        }

        th {
            border: 1px solid lightpink;
        }
    </style>
</head>

<body>
    <div class="container">
        <form action="" method="get" id="myForm">
            <table>
                <tr>
                    <td colspan="4">
                        <h2>飲料點餐</h2>
                    </td>
                </tr>
                <tr>
                    <th>品名</th>
                    <th>單價</th>
                    <th>數量</th>
                    <th>總價</th>
                </tr>
                <tr>
                    <td>花茶</td>
                    <td>
                        <input type="number" name="item1" id="item1" value="100">
                    </td>
                    <td>
                        <input type="number" name="item1Num" id="item1Num">
                    </td>
                    <td>
                        <input type="number" name="item1Price" id="item1Price">
                    </td>
                </tr>
                <tr>
                    <td>咖啡</td>
                    <td>
                        <input type="number" name="item2" id="item2" value="200">
                    </td>
                    <td>
                        <input type="number" name="item2Num" id="item2Num">
                    </td>
                    <td>
                        <input type="number" name="item2Price" id="item2Price">
                    </td>
                </tr>
                <tr>
                    <td>黃金水</td>
                    <td>
                        <input type="number" name="item3" id="item3" value="500">
                    </td>
                    <td>
                        <input type="number" name="item3Num" id="item3Num">
                    </td>
                    <td>
                        <input type="number" name="item3Price" id="item3Price">
                    </td>
                </tr>
                <tr>
                    <td>
                        總價
                    </td>
                    <td colspan="2">
                        <p id=result>
                            0
                        </p>
                    </td>
                    <td>
                        <button type="submit" id="sumbit">多少錢</button>
                    </td>

                </tr>
            </table>
        </form>
    </div>

    <script src="./js/main.js"></script>
</body>

</html>