代码优化

prec-service/src/main/java/com/diagbot/service/impl/UploadServiceImpl.java

@@ -48,7 +48,7 @@ public class UploadServiceImpl implements UploadService {
         if (file.isEmpty()) {
             return new FileDTO("FAILURE", "文件不能为空");
         }
-        //文件大小上限1M
+        //文件大小上限4M
         if (file.getSize() > 1024 * 1024 * 4) {
             return new FileDTO("FAILURE", "文件上传失败，超出大小限制4MB");
         }