调整生成维护表一处顺序问题

follow_up.py

@@ -281,6 +281,11 @@ def follow_up_handle():
                     if idx_to_rm_2:
                         df_keep_info.loc[idx_to_rm_2, "keep_flag"] = -1
 
+        # 将 df_to_add 添加到 df_keep_info 之后
+        add_rows = len(df_to_add) if "df_to_add" in locals() else 0
+        if add_rows:
+            df_keep_info = pd.concat([df_keep_info, df_to_add], ignore_index=True)
+        
         # 将长时间没更新的航班标记为-1
         dt_update_hour = pd.to_datetime(df_keep_info["update_hour"], errors="coerce")
         dt_crawl_date = pd.to_datetime(df_keep_info["crawl_date"], errors="coerce")
@@ -288,11 +293,6 @@ def follow_up_handle():
         if mask_abnormal_time.any():
             df_keep_info.loc[mask_abnormal_time.fillna(False), "keep_flag"] = -1
         
-        # 将 df_to_add 添加到 df_keep_info 之后
-        add_rows = len(df_to_add) if "df_to_add" in locals() else 0
-        if add_rows:
-            df_keep_info = pd.concat([df_keep_info, df_to_add], ignore_index=True)
-        
         df_keep_info_snapshot = df_keep_info.copy()
         df_keep_info_snapshot.to_csv(keep_info_snapshot_path, index=False, encoding="utf-8-sig")
         print(