python随机抽样后检查

Question

这是我的第一个小项目和第一个问题，所以格式抱歉。我有两个列表，其中包含作为字符串的配方名称。我想问用户每个列表中他们需要多少餐，然后随机选择。你知道吗

然后我想检查一顿饭是否是通过选择来选择的，并显示将存储在变量中的饭的价格。你知道吗

我的想法是将随机样本添加到新列表中，并通过if-in语句检查内容。如果菜谱在新列表中，那么它将打印包含价格的变量。你知道吗

但是，当我查看新的食谱列表时，它认为它不在列表中。有什么我错过的或者更好的方法吗？非常感谢。你知道吗

到目前为止我的代码是：

import random
Vegetarian = ["Jungle Curry", "Chickpea Curry", "Dhal", "Buddha Bowl", 
"Chickpea Salad", "Lazy Noodles", "Fry Up"]
Meat = ["Chilli", "Butter Chicken", "Lamb and Hummus"]

v = int(raw_input("How many vegetarian meals this week? > "))
m = int(raw_input("How many meaty meals? > "))

Veg1 = random.sample(Vegetarian, v)
Meat2 = random.sample(Meat, m)

veg_week = []
meat_week = []

veg_week.append(Veg1)
meat_week.append(Meat2)

jungle_curry = 10
chickpea_curry = 10

if "Jungle Curry" and "Chickpea Curry" in veg_week:
    print jungle_curry + chickpea_curry

Answer 1

我会这样做的

import random

Vegetarian = ["Jungle Curry", "Chickpea Curry", "Dhal", "Buddha Bowl",
          "Chickpea Salad", "Lazy Noodles", "Fry Up"]
Meat = ["Chilli", "Butter Chicken", "Lamb and Hummus"]

v = int(raw_input("How many vegetarian meals this week? > "))
m = int(raw_input("How many meaty meals? > "))

Veg1 = random.sample(Vegetarian, v)
Meat2 = random.sample(Meat, m)

veg_week = []
meat_week = []

veg_week.append(Veg1)
meat_week.append(Meat2)

# put the prices of each in the list too 
Vegetarian_price = [10, 10, 10, 10, 10, 10, 10]
Meat_price = [20, 20, 20]

v_cost = 0
m_cost = 0
for i in range(len(Veg1)):
    v_cost += Vegetarian_price[Vegetarian.index(Veg1[i])]

for i in range(len(Meat2)):
    m_cost += Meat_price[Meat.index(Meat2[i])]

print v_cost,m_cost

Answer 2

你有几个错误，让我们来看看：

• random.sample的结果是一个列表；当您调用veg时_周。追加（Veg1'，您正在创建一个列表列表。你知道吗
• 之后，将值10赋给jungle_curry和chickpea_curry
• 然后，您要检查"Jungle Curry"和"Chickpea Curry"是否都在所选的示例中；也许您要逐个检查这些是否在本周的菜单中？你知道吗

这应该更有效：

import random

Vegetarian = ["Jungle Curry", "Chickpea Curry", "Dhal", "Buddha Bowl", 
"Chickpea Salad", "Lazy Noodles", "Fry Up"]
Meat = ["Chilli", "Butter Chicken", "Lamb and Hummus"]

v = int(input("How many vegetarian meals this week? > "))
m = int(input("How many meaty meals? > "))

Veg1 = random.sample(Vegetarian, v)
Meat2 = random.sample(Meat, m)

if "Jungle Curry" and "Chickpea Curry" in veg1:
    print(jungle_curry + chickpea_curry)