update：导出限制

src/modules/invoice/views/List.vue

@@ -55,7 +55,9 @@
         </template>
         <template #footer>
           <span>已选择{{ multipleSelection.length }}条</span>
-          <el-button @click="exportSelect" style="margin-left: 40px">导出</el-button>
+          <el-button @click="exportSelect" style="margin-left: 40px" :disabled="multipleSelection.length === 0"
+            >导出</el-button
+          >
           <el-button @click="downloadInvoices" style="margin-left: 40px">全部导出</el-button>
         </template>
       </app-list>

src/modules/payment/views/List.vue

@@ -65,7 +65,7 @@
       </template>
       <template #footer>
         <span>已选择{{ multipleSelection.length }}条</span>
-        <el-button @click="exportSelect" style="margin-left: 40px">导出</el-button>
+        <el-button @click="exportSelect" style="margin-left: 40px" :disabled="multipleSelection.length === 0">导出</el-button>
         <el-button @click="exportAll" style="margin-left: 40px">导出全部</el-button>
       </template>
     </app-list>