我的两个vue.component组件不能同时加载，只留一个可以出来

Question

<div class="content">
        <header-bar/>
        <nav-bar/>
    </div>
    <script src="../assets/scripts/base.js"></script>
     <script src="../assets/scripts/index.js"></script>
     <script>        var vm = new Vue({
            el:".content",
            data:{}
        })     </script>