admin不允许更改会员等级信息(只读)

src/views/his/user/index.vue

@@ -200,7 +200,7 @@
         <!--  会员等级      -->
         <el-form-item label="会员等级" prop="level">
           <el-select v-model="form.level" placeholder="请选择会员等级" clearable size="small">
-            <el-option
+            <el-option disabled
               v-for="dict in userLevelOptions"
               :key="dict.dictValue"
               :label="dict.dictLabel"