4 Vue.js 核心理念：数据驱动界面

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• style样式放在body里面

      <style type="text/css">
          .ui.segment.container {
              width:700px;
          }

          p {
              font-family: 'Raleway', sans-serif;
              font-size:{{ article.fontSize }}px;
          }

          body {
              background:url(images/star_banner.jpg);
              background-size:cover;
              background-repeat:no-repeat;
              background-attachment:fixed
          }

      </style>

        <div class="ui  segment padded container" >

          <button v-on:click="article.fontSize+=5" class="ui top left attached label" type="button" name="button">+</button>

            <h1 class="ui header" style="font-family:'Oswald', sans-serif;font-size:40px">
                {{ article.title }}
                {{ article.fontSize }}
            </h1>
            <p>
               {{ article.content }}
            </p>

        </div>

        <script>
          var vm = new Vue({
              el:"#app",
              //context
              data:{
                //context["articlke"] = article
                article:{
                  title:"THis is a title",
                  content:"Hi there",
                  fontSize:18,
                },
                comments:[
                  {name:"alex",said:"Great!"},
                  {name:"alex",said:"Great!"},
                  {name:"alex",said:"Great!"},
                  {name:"alex",said:"Great!"},
                ]
              }
          })
        </script>

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<!-- Comments&Form's here -->
        <div class="ui segment container" style="700px;">
            <h3 class="ui header" style="font-family:'Oswald', sans-serif;">Comments</h3>
            <div v-for="comment in comments" class="ui comments">
                <div  class="comment" v-if="comment.show">
                    <div class="avatar">
                        <img src="http://semantic-ui.com/images/avatar/small/matt.jpg" alt="" />
                    </div>
                    <div class="content">
                        <a href="#" class="author">{{ comment.name}}</a>
                        <div class="metadata">
                            <div class="date">2 days ago</div>
                        </div>
                        <p class="text" style="font-family: 'Raleway', sans-serif;">
                            {{ comment.said   }}
                        </p>
                        <div class="actions">
                            <a v-on:click="comment.show = !comment.show">屏蔽</a>
                        </div>
                    </div>

                </div>

                <div class="comment" v-else>
                    已经被屏蔽
                </div>
                
            </div>

            <div class="ui divider"></div>

            <h3 class="ui header"> 你还可以输入{{ 200 - message.length }}字</h3>
            <form class="ui form" action="" method="post">
                <input  v-model="message" type="text" >
            </form>

        </div>

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