promos = [fidelity_promo, bulk_item_promo, large_order_promo] ? def best_promo(order): ? """选择可用的最佳折扣 """ return max(promo(order) for promo in promos) ?
promos = [globals()[name] for name in globals() ? if name.endswith(‘_promo‘) ? and name != ‘best_promo‘] ? def best_promo(order): """选择可用的最佳折扣 """ return max(promo(order) for promo in promos) ?
原文：https://www.cnblogs.com/xiangxiaolin/p/11649853.html