fix:sort 相同，按id倒叙

cooleshow-mall/mall-portal/src/main/java/com/yonge/cooleshow/portal/service/impl/PmsPortalProductServiceImpl.java

@@ -81,13 +81,13 @@ public class PmsPortalProductServiceImpl implements PmsPortalProductService {
         if (sort == 1) {
             example.setOrderByClause("id desc");
         } else if (sort == 2) {
-            example.setOrderByClause("sale desc");
+            example.setOrderByClause("sale desc,id desc");
         } else if (sort == 3) {
-            example.setOrderByClause("price asc");
+            example.setOrderByClause("price asc,id desc");
         } else if (sort == 4) {
-            example.setOrderByClause("price desc");
+            example.setOrderByClause("price desc,id desc");
         } else {
-            example.setOrderByClause("sort desc");
+            example.setOrderByClause("sort desc,id desc");
         }
         List<PmsProduct> pmsProducts = productMapper.selectByExample(example);
         List<Long> productIdList = pmsProducts.stream().map(PmsProduct::getId).collect(Collectors.toList());