SOURCE

var vm = new Vue({
  el:"#app",
  data(){
    return {
      message:'abc',
      sex:'',
      check:[],
      addre:''
    }
  },
  methods:{
  }
})

<!-- <script src="https://unpkg.com/vue/dist/vue.js"></script> -->
<!-- <script src="https://unpkg.com/vue-router/dist/vue-router.js"></script> -->
<!-- 引入样式 -->
<!-- <link rel="stylesheet" href="https://unpkg.com/element-ui/lib/theme-chalk/index.css"> -->
<!-- 引入组件库 -->
<!-- <script src="https://unpkg.com/element-ui/lib/index.js"></script> -->
<div id="app">
  <div class="block">
    <span class="demonstration">月</span>
    <el-date-picker
      v-model="value2"
      type="month"
      placeholder="选择月">
    </el-date-picker>
  </div>
</div>