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<html>
  <head>
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
  </head>
  <body>
    <div id="ap">
      <p v-once>{{ body_nie }} - <a v-bind:href="link">baidu</a></p>
      <h1>{{ sayNice() }}</h1>
    </div>
    <script>
      new Vue({
        el : '#ap',
        data : {
          body_nie : " It's good begin for me in 13th june.",
          link: "http://www.baidu.com"
        },
        methods : {
          sayNice : function () {
            this.body_nie = "weather"
           return this.body_nie
        	}
        }
      })
    </script>
  </body>
</html>