SOURCE

var vm = new Vue ({
  el: '#app',
  data : {
      isChinese : true,
      kuan : '100px',
      gao : '100px',
      yanse : 'red',
      zhongwen : '中文'
    },
  methods : {
    click1 : function () {
      alert("这是一个对话框");
      this.yanse = "blue";
    }
  }
})

<div id="app">
  
  
    <p v-bind:style="{'width':kuan,'height':gao,'background':yanse}">
        <span v-if="isChinese" @click="click1">{{zhongwen}}</span>
    </p>
    
</div>