vue这个代码哪里不对？

提示Failed to mount component: template or render function not defined..

<!DOCTYPE html><html lang="en"><head>
  <meta charset="UTF-8">
  <title>Document</title>
  <script src="vue.js"></script></head><body>
  <template id="test">
    <div>
       aaaa<slot name="age"></slot>
    </div>
  </template>

  <div id="app">
    <show>
       <span slot="age">{{age}}</span>
    </show>
  </div>
  <script>
  var user={
      template:"#test",
  }  new Vue({
    el:"#app",
    data:{
       age:22
    },
    components:{      "show":test,
    },
  })  </script></body></html>

萧十郎

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