回测engine.run_backtesting()出问题，好像缺少一个函数方法查找数据字段
2025-11-29 16:51:34.133494 触发异常，回测终止 2025-11-29 16:51:34.136497 Traceback (most recent call last): File "D:\veighna_elite_simulation\lib\site-packages\elite_optionstrategy\backtesting.py", line 192, in run_backtesting File "D:\veighna_elite_simulation\lib\site-packages\elite_optionstrategy\backtesting.py", line 528, in _run_intraday File "E:\vnpy_projects\19\19\buy_option_strategy.py", line 32, in on_init self.subscribe_options(self.option_portfolio) File "D:\veighna_elite_simulation\lib\site-packages\elite_optionstrategy\template.py", line 285, in subscribe_options File "D:\veighna_elite_simulation\lib\site-packages\elite_optionstrategy\backtesting.py", line 767, in subscribe_options File "D:\veighna_elite_simulation\lib\site-packages\elite_optionstrategy\backtesting.py", line 112, in _get_option_contracts File "D:\veighna_elite_simulation\lib\site-packages\elite_optionstrategy\backtesting.py", line 121, in _update_contract AttributeError: 'EliteDatabase' object has no attribute 'load_option_field'
