改图片命名，现在顺序正确了

ocr/getdata.py

@@ -255,7 +255,23 @@ def _drain_network(
                     if m2:
                         page_id = f"_{m2.group(0)}"
                 
-                out_path = img_dir / f"{len(img_saved):04d}{page_id}{ext}"
+                # Default file name format
+                file_name = f"{len(img_saved):04d}{page_id}{ext}"
+                
+                # Try to extract actual filename from URL, e.g. SWX0005_00001_00001.webp
+                m_name = re.search(r"-([a-zA-Z0-9_]+\.(?:webp|png|jpe?g|jpg|bmp))", url, re.IGNORECASE)
+                if m_name:
+                    file_name = m_name.group(1)
+                else:
+                    m_name2 = re.search(r"/([^/]+?\.(?:webp|png|jpe?g|jpg|bmp))(?:[?~]|$)", url, re.IGNORECASE)
+                    if m_name2:
+                        name_part = m_name2.group(1)
+                        if "-" in name_part:
+                            file_name = name_part.split("-", 1)[-1]
+                        else:
+                            file_name = name_part
+                
+                out_path = img_dir / file_name
                 try:
                     out_path.write_bytes(data)
                 except Exception: