<!--第一种:点击改变容器的值-->

<li>
<a href="javascript:void(0)" @click="state.box_status = 'language'">语言</a>
</li>
<li>
<a href="javascript:void(0)" @click="state.box_status = 'equipment'">设备</a>
</li>

<!--与容器的值相对应则显示-->
<div v-show="state.box_status == 'language'">
  视图一
</div>
<div
v-show="state.box_status == 'equipment'">
  视图二
</div>



<!--第二种:点击改变容器的值-->
<select v-model="state.user_arg">
<option value="1">添加参数</option>
<option value="2">替换所有参数</option>
<option value="3">移除与以下内容完全一致的参数</option>
</select>
<div v-show="state.user_arg == 1">
  视图一
</div>

<div v-show="state.user_arg == 2">
  视图二
</div>

<div v-show="state.user_arg == 3">
  视图三
</div>

<!--如果判断语句少写一个等号,会报 You may have an infinite update loop in a component render function  大意是无限更新循环-->


第一次写好紧张