为什么我的列表跳过了某个特定的值？

Question

我可以在同时弹出时进行迭代吗？你知道吗

def process_shipments(shipments_list):
next_day_orders = []
bamboo_shoots = 20
bamboo_leaves = 15
for order in shipments_list:
    if order[1] < 20 and order[2] < 15 and bamboo_shoots > 0 and bamboo_leaves > 0:
        bamboo_shoots -= order[1]
        bamboo_leaves -= order[2]
        total_cost = ((5*order[1])+(2*order[2]))
        print (order[0], "-", "$",total_cost)
    else:
        next_day_orders += order
shipments_delete[:]
return next_day_orders

我在问两种版本是否都可以。我在努力优化效率。你知道吗

Answer 1

您正在迭代循环中修改shipments_list。不要在循环索引出错时这样做。你知道吗