In Vue.js, the tag is used to write application logic, including the following: Import Vue libraries and components to create Vue instances, including data, methods and life cycle hooks to define reusable components. , with its own templates, data and method filtering, directives and definitions of global properties</p></blockquote> <p><img src="https://img.php.cn/upload/article/202405/02/2024050221514522911.jpg" alt="The role of script tags in vue" ></p> <p>##The role of the <script> tag in Vue<strong> </strong></p>In Vue.js, the <p><script><code> tag is used to write application logic. It usually contains the following: </code></p> <ul> <li> <p>Import<strong>: Import the required Vue libraries and components. </strong></p> <div class="code" style="position:relative; padding:0px; margin:0px;"><pre><code class="html"><script src="vue.js"> Copy after login Vue instance: Create a Vue instance that contains data, methods, and lifecycle hooks. new Vue({ data: { message: 'Hello Vue!' }, methods: { sayHello() { console.log(this.message); } } }) Copy after login Component definition: Define a reusable Vue component with its own template, data and methods. Vue.component('my-component', { template: '<p>{{ message }}</p>', data() { return { message: 'I am a component!' } } }) Copy after login Other functions##<p> Tags can also be used for:<code></code></p> <ul>Filtering<li>: Use Vue.js filters to transform or format data. <strong></strong> </li>Directives<li>: Use Vue.js directives to enhance the behavior of elements. <strong></strong> </li>Global properties and methods<li>: Define global properties and methods that can be accessed outside the <strong><script></strong> tag. <code></code> </li> </ul>