擅长:python、mysql、java
<p>您只需使用
<code>for i in elements</code>并从两个列表中获取每个元素并附加到新列表中。(本例中为k)。在</p>
<pre><code>class IceCreamMachine:
def __init__(self, ingredients, toppings):
self.ingredients = ingredients
self.toppings = toppings
def scoops(self):
k=[]
for i in self.ingredients:
for j in self.toppings:
k.append([i,j])
return k
machine = IceCreamMachine(["vanilla", "chocolate"], ["chocolate sauce"])
print(machine.scoops()) #should print[['vanilla', 'chocolate sauce'], ['chocolate', 'chocolate sauce']]
</code></pre>