11-component.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>vuejs test</title>
    <script src="node_modules/vue/dist/vue.js"></script>

</head>
<body>
<div id="app">
  <counter></counter>
    <counter></counter>
    <counter></counter>
</div>
<script>
    const counter={
        template:"<button @click='num++'>you clicked {{num}} times</button>",
        data(){
            return {num:0}
        }
    }
    //全局注册
    //参数1，组件名称，参数2 具体组件
    // Vue.component("counter",counter);
    var app=new Vue({
        el:"#app",
        components:{
            counter:counter
        }
    })
</script>
</body>
</html>