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				@@ -334,11 +334,11 @@ def hierarchical_traversal(root_path, all_records): 
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				                 gov_commodity_jiangsu_city.process_folder(md['path']) 
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				 def main(): 
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				-    parser = argparse.ArgumentParser(description="爬取模式: 全量(all) 或 增量(auto)") 
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				-    parser.add_argument("mode", choices=["all", "auto"], help="运行模式") 
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				+    parser = argparse.ArgumentParser(description='海关数据智能抓取系统') 
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				+    parser.add_argument('--year', type=int, default=None, help='终止年份(如2023),未指定时抓取最新两个月') 
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				     args = parser.parse_args() 
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				-    if args.mode == "all": 
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				+    if args.year == 2023: 
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				         crawl_with_selenium('http://nanjing.customs.gov.cn/nanjing_customs/zfxxgk58/fdzdgknr95/3010051/589289/7e2fcc72-1.html','all') 
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				     else: 
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				         crawl_with_selenium('http://nanjing.customs.gov.cn/nanjing_customs/zfxxgk58/fdzdgknr95/3010051/589289/7e2fcc72-1.html','auto') 
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