diff --git a/pages/order-detail/index.vue b/pages/order-detail/index.vue
index 687e7fc..9e7c47e 100644
--- a/pages/order-detail/index.vue
+++ b/pages/order-detail/index.vue
@@ -384,8 +384,8 @@ export default {
     },
     // 上传收货凭证
     uploadVoucher(supplierOrderId, arr) {
-      let len = arr && arr.length ? 5 - arr.length : 5
-      uploadImage(['album'], len)
+      let num = arr && arr.length ? 5 - arr.length : 5
+      uploadImage(['album'], num)
         .then((urls) => {
           if (urls) {
             clientUploadVoucher({