积分等级配置 ， 增加限制 - 只能新增一条数据

src/views/modules/user/pointsgrade.vue

@@ -3,7 +3,7 @@
     <div class="mod-epdc-user__pointsgrade}">
       <el-form :inline="true" :model="dataForm" @keyup.enter.native="getDataList()">
         <el-form-item>
-          <el-button v-if="$hasPermission('epdc-user:pointsgrade:save')" type="primary" @click="addOrUpdateHandle()">{{ $t('add') }}</el-button>
+          <el-button v-if="$hasPermission('epdc-user:pointsgrade:save')" :disabled="this.total > '0'" type="primary" @click="addOrUpdateHandle()">{{ $t('add') }}</el-button>
         </el-form-item>
       </el-form>
       <el-table v-loading="dataListLoading" :data="dataList" border @selection-change="dataListSelectionChangeHandle" style="width: 100%;">