feat(service): 新增客户跟进附件处理服务实现

buhuazhen

2026-04-24 8da04121777dbb6f4880a1cfc1806474cddeb34b

 src/main/java/com/ruoyi/purchase/service/IPurchaseLedgerService.java

@@ -43,4 +43,6 @@
    String getPurchaseNo();

    AjaxResult importData(MultipartFile file);

    PurchaseLedgerDto getPurchaseByCode(PurchaseLedgerDto purchaseLedgerDto);
}