<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
  </head>

  <body>
    <div id="app">
      <comp-test>
      </comp-test>
    </div>

    <script>
      // 创建的是 Vue 构造器
      const comp = Vue.extend({
        template: `
          <div id="">
            <p>Hello Vue.js!</p>
            <p>Hello furong!</p>
          </div>`
      })

      // 注册一个全局组件
      Vue.component('comp-test', comp);

      const app = new Vue({
        el: '#app',
        data: {
          message: 'Hello Vue.js!',
        },
      })
    </script>
  </body>
</html>

vue全局组件_vue.js