代码示例

<div id="app">
  <p>$: {{$}}</p>
  <p>$route.path: {{$route.path}}</p>
  <p>$route.query: {{$route.query}}</p>
</div>

<script src="/static/js/vue.js"></script>
<script src="/static/js/vue-router.js"></script>

<script>
  const router = new VueRouter({
    mode: "history", // 默认使用hash模式，url会出现#
  });

  const app = new Vue({
    router,
    el: "#app",
  });
</script>

显示结果

$:

$route.path: /demo.html

$route.query: { "id": "44", "name": "Tom" }

单页面上使用vue-router，可以用来解析url上的参数