擅长:python、mysql、java
<p>看起来你在找<code>itertools.product</code></p>
<pre><code>from itertools import product
class IceCreamMachine:
def __init__(self, ingredients, toppings):
self.ingredients = ingredients
self.toppings = toppings
def scoops(self):
return list(product(self.ingredients, self.toppings))
if __name__ == "__main__":
machine = IceCreamMachine(["vanilla", "chocolate"], ["chocolate sauce"])
print(machine.scoops()) #should print[['vanilla', 'chocolate sauce'],
</code></pre>