....

examcloud-core-basic-api-provider/src/main/java/cn/com/qmth/examcloud/core/basic/api/controller/OrgController.java

@@ -1077,6 +1077,7 @@ public class OrgController extends ControllerSupport {
 
 		req.setFormFilePartList(formFilePartList);
 		req.setSiteId("orgLogo");
+		req.setFileSuffix(fileSuffix);
 		req.setRootOrgId(orgEntity.getRootId());
 		PutFileResp putFileResp = upyunCloudService.putFile(req);
 		String url = putFileResp.getUrl();