穿梭框标题

src/components/app-transfer/app-transfer.vue

@@ -6,7 +6,7 @@
       v-for="(item,i) in dataRight"
       :key="i"
     >{{dataLeft[item-1].label}}</Option>
-    <el-transfer v-model="dataRight" :data="dataLeft" @change="dataChange"></el-transfer>
+    <el-transfer v-model="dataRight" :data="dataLeft" @change="dataChange" :titles="['未选择', '已选择']"></el-transfer>
   </Select>
 </template>
 <script lang="ts">