SOURCE

console 命令行工具 X clear

                    
>
console
var app = new Vue({
  el: '#app',
  data: {
    user: {
      gender: '2'
    }
  },
  created: function() {
  },
  methods: {
  }
});
<div id="app">
<select name="gender" id="gender" v-bind:value="user.gender">
  <option value="1">男</option>
  <option value="2">女</option>
</select>
  
  你的选择:  {{user.gender}}
</div>
<script src="https://cdn.jsdelivr.net/npm/vue">
</script>