8/7 收银台加个未收，打印票据多个支付明细,房屋租赁-签约/上下架

src/views/system/houseRental/index.vue

@@ -147,9 +147,11 @@
             :show-file-list="true"
             v-model:file-list="showImgList"
             name="files"
+            :limit="MAX_UPLOAD_FILES"
             :onChange="handleChange"
             :onExceed="handleExceed"
             :multiple="true"
+            :on-preview="handlePreview"
             :auto-upload="false"
             drag
             :action="uploadApi"
@@ -339,6 +341,10 @@ const handleAdd = () => {
   });
 };
 
+function handlePreview(uploadFile: UploadFile) {
+  window.open(uploadFile.url);
+}
+
 /** 修改按钮操作 */
 const handleUpdate = (row?: HouseRentalVO) => {
   const id = row?.id || ids.value[0];
@@ -424,7 +430,7 @@ const handleExceed = () => {
 };
 const handleChange = (file: UploadUserFile) => {
   // 实时判断当前已存在图片总数
-  if (showImgList.value.length >= MAX_UPLOAD_FILES) {
+  if (showImgList.value.length > MAX_UPLOAD_FILES) {
     ElMessage.warning(`最多上传${MAX_UPLOAD_FILES}张，无法继续添加`);
     // 清除刚选中的文件，防止缓存残留
     uploadRef.value?.handleRemove(file);