多条件vue动态绑定class

<ul class="protocol-ul">
  <li class="info" v-for="(item,index) in ruleList" :key='"item" + index'>
     <el-checkbox v-model="item.ENABLE" :true-label='1' :false-label='0'></el-checkbox>
     <el-switch v-model="item.MUSTRULE" :active-value='1' :inactive-value='0' @change="switchRefresh" :width="30"></el-switch>
     <span :class="[{'success': item.KEYTYPE === 'MSGIDDESC'}, {'primary': item.KEYTYPE === 'MSGID'}, {'warning': item.KEYTYPE === 'MSGIDKEY'}]">{{item.KEYNAME}}</span>
     <button class="destroy" @click="deleteAll(item,index)" />
   </li>
</ul>