批量充值问题

src/views/base/canteenOutsourcerBalance-list.vue

@@ -39,7 +39,7 @@
     </el-form>
     <el-divider></el-divider>
     <el-row class="button-group">
-      <el-button type="success" size="small" plain icon="el-icon-upload2" @click="batchRecharge">批量充值</el-button>
+      <el-button type="success" size="small" plain icon="el-icon-upload2" :disabled="multipleSelection.length==0" @click="batchRecharge">批量充值</el-button>
     </el-row>
     <el-table
       ref="formTable"