我遵循了Metatrader5 python 文檔和堆棧溢出中的這個答案我嘗試建立賣出頭寸：import MetaTrader5 as mt5ea_magic_number = 9986989 # if you want to give every bot a unique identifierdef get_info(symbol):    '''https://www.mql5.com/en/docs/integration/python_metatrader5/mt5symbolinfo_py    '''    # get symbol properties    info=mt5.symbol_info(symbol)    return infodef open_trade(action, symbol, lot, sl_points, tp_points, deviation):    '''https://www.mql5.com/en/docs/integration/python_metatrader5/mt5ordersend_py    '''    # prepare the buy request structure    symbol_info = get_info(symbol)    if action == 'buy':        trade_type = mt5.ORDER_TYPE_BUY        price = mt5.symbol_info_tick(symbol).ask    elif action =='sell':        trade_type = mt5.ORDER_TYPE_SELL        price = mt5.symbol_info_tick(symbol).bid    point = mt5.symbol_info(symbol).point    buy_request = {        "action": mt5.TRADE_ACTION_DEAL,        "symbol": symbol,        "volume": lot,        "type": trade_type,        "price": price,        "sl": price - sl_points * point,        "tp": price + tp_points * point,        "deviation": deviation,        "magic": ea_magic_number,        "comment": "sent by python",        "type_time": mt5.ORDER_TIME_GTC, # good till cancelled        "type_filling": mt5.ORDER_FILLING_RETURN,    }    # send a trading request    result = mt5.order_send(buy_request)            return result, buy_request def close_trade(action, buy_request, result, deviation):    '''https://www.mql5.com/en/docs/integration/python_metatrader5/mt5ordersend_py    '''    # create a close request    symbol = buy_request['symbol']    if action == 'buy':        trade_type = mt5.ORDER_TYPE_BUY        price = mt5.symbol_info_tick(symbol).ask    elif action =='sell':        trade_type = mt5.ORDER_TYPE_SELL        price = mt5.symbol_info_tick(symbol).bid    position_id=result.order    lot = buy_request['volume']沒有任何反應，應用程序終端也沒有任何反應。我還檢查了 Metatrader5 中的貿易和歷史部分以查找一些相關信息，但我一無所獲。我如何在Metatrader5中監控日志來調試代碼并解決問題？