diff --git a/u9a9/src/config.py b/u9a9/src/config.py
index b318d06..6ac9e3b 100644
--- a/u9a9/src/config.py
+++ b/u9a9/src/config.py
@@ -36,7 +36,7 @@ class RateLimitFilter(logging.Filter):
         if elapsed < 60:  # 60 秒内
             log_count[message_key] += 1
             if log_count[message_key] > self.LOG_LIMIT:
-                print('reach limit.')
+                print('reach limit.\n')
                 return False  # 直接丢弃
         else:
             log_count[message_key] = 1  # 超过 60 秒，重新计数
diff --git a/u9a9/src/fetch.py b/u9a9/src/fetch.py
index 318d848..94a92cb 100644
--- a/u9a9/src/fetch.py
+++ b/u9a9/src/fetch.py
@@ -29,8 +29,8 @@ def fetch_list(start_p=1):
     total_results = []
     # 备份已有文件
     utils.backup_existing_file(target_csv)
-    while True:
-        url = f"https://u001.25img.com/?p={p}"
+    url = f"https://u001.25img.com/?p={p}"
+    while url:
         logging.info(f"fetching url {url}")
         soup, status_code = scraper.fetch_page(url, partial(scraper.generic_validator, tag="div", identifier="table-responsive", attr_type="class"))
         if soup:
@@ -42,15 +42,14 @@ def fetch_list(start_p=1):
             if total_pages:
                 if p >= total_pages:
                     url = None
-                    break
                 else:
                     p += 1
+                    url = f"https://u001.25img.com/?p={p}"
                     if p % 10 == 0 :
-                        #utils.write_to_csv(total_results, target_csv)
                         lines = utils.append_to_csv(total_results, target_csv)
+                        total_results.clear()  # 清空缓冲区
                         if lines:
                             logging.info(f"write to csv file. new lines: {len(total_results)}, total lines: {lines}")
-                        total_results.clear()  # 清空缓冲区
                     time.sleep(1)
             else:
                 logging.warning(f"fetch_list failed. url: {url} ")
@@ -59,17 +58,14 @@ def fetch_list(start_p=1):
         else:
             logging.warning(f'fetch_page error. url: {url}, status_code: {status_code}')
 
-        if not url:
-            break
-            
         if debug:
             break
 
     # 写入csv文件
-    lines = utils.write_to_csv(total_results, target_csv)
+    lines = utils.append_to_csv(total_results, target_csv)
     total_results.clear()
     if lines:
-        logging.info(f"write to file succ. file: {target_csv}. total lines: {lines}")
+        logging.info(f"write to csv file succ. file: {target_csv}. total lines: {lines}")
     logging.info(f"fetch list finished. total pages: {p}")
 
 
@@ -143,11 +139,10 @@ def fetch_sis_list(url = 'https://sis001.com/forum/forum-25-1.html', target_csv_
                 url = next_url
                 cnt += 1
                 if cnt % 10 == 0 :
-                    #utils.write_to_csv(total_results, target_csv_sis)
                     lines = utils.append_to_csv(total_results, target_csv_sis)
+                    total_results.clear()
                     if lines:
                         logging.info(f"write to csv file. new lines: {len(total_results)}, total lines: {lines}")
-                    total_results.clear()
                 time.sleep(1)
             else:
                 logging.warning(f"fetch_list failed. url: {url} ")
@@ -160,10 +155,10 @@ def fetch_sis_list(url = 'https://sis001.com/forum/forum-25-1.html', target_csv_
             break
 
     # 写入csv文件
-    lines = utils.write_to_csv(total_results, target_csv_sis)
+    lines = utils.append_to_csv(total_results, target_csv_sis)
     total_results.clear()
     if lines:
-        logging.info(f"write to file succ. file: {target_csv_sis}, total lines: {lines}")
+        logging.info(f"write to csv file succ. file: {target_csv_sis}, total lines: {lines}")
     logging.info(f"fetch list finished. total pages: {cnt}")
 
 def fetch_sis_all():