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html - 为什么我的 Materialize Select 不起作用，即使我复制了代码？

问题描述

我从字面上复制了不能使用物化选择的代码？但我认为问题出在其他地方。我也不能使用 datepicker，但是像 Dropdown-navbar 这样的组件可以工作，我不明白。

所以我的选择的问题是，它甚至不会出现，而日期选择器的问题是，模态内容不会出现。

我有一种感觉，我只是在设置的某个地方犯了一个简单的错误。

<html>

<head>
    <!--Import Google Icon Font-->
    <link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
    <!--Import materialize.css-->
    <link type="text/css" rel="stylesheet"
        href="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/css/materialize.min.css"
        media="screen,projection" />

    <!--Let browser know website is optimized for mobile-->
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
</head>

<body>

    <div class="input-field col s12">
        <select>
            <option value="" disabled selected>Choose your option</option>
            <option value="1">Option 1</option>
            <option value="2">Option 2</option>
            <option value="3">Option 3</option>
        </select>
        <label>Materialize Select</label>
    </div>

    <!--JavaScript at end of body for optimized loading-->
    <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/js/materialize.min.js">
        document.addEventListener('DOMContentLoaded', function () {
            var elems = document.querySelectorAll('select');
            var instances = M.FormSelect.init(elems, {});
        });
    </script>
</body>

</html> ```

标签： htmlcssmaterialize

解决方案

您必须关闭此标签： <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/js/materialize.min.js"> 并创建一个包含您的脚本的新标签脚本

document.addEventListener('DOMContentLoaded', function () {
            var elems = document.querySelectorAll('select');
            var instances = M.FormSelect.init(elems, {});
        });


<html>

<head>
    <!--Import Google Icon Font-->
    <link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
    <!--Import materialize.css-->
    <link type="text/css" rel="stylesheet"
        href="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/css/materialize.min.css"
        media="screen,projection" />

    <!--Let browser know website is optimized for mobile-->
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
</head>

<body>

    <div class="input-field col s12">
        <select>
            <option value="" disabled selected>Choose your option</option>
            <option value="1">Option 1</option>
            <option value="2">Option 2</option>
            <option value="3">Option 3</option>
        </select>
        <label>Materialize Select</label>
    </div>

    <!--JavaScript at end of body for optimized loading-->
    <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/js/materialize.min.js"></script>
    <script>
        document.addEventListener('DOMContentLoaded', function () {
            var elems = document.querySelectorAll('select');
            var instances = M.FormSelect.init(elems, {});
        });
    </script>
</body>

</html>

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