擅长:python、mysql、java
<pre><code>dict_cars = {}
while True:
car_number=0
car_brand=""
car_model=""
car_number = input ('Insert car number: ')
if car_number=='end':
break
car_brand = input ('Insert car brand: ')
car_model = input ('Insert car model: ')
dict_cars[car_number] ={}
dict_cars[car_number][car_brand] = car_model
print(dict_cars)
</code></pre>
<p>上面的代码提供了所需的输出。你知道吗</p>
<pre><code>{1 : {'Mercedes':'E500'}},{ 2 : {'Ford' : 'Focus'}},{ 3 {'Toyota' : 'Celica'}}
</code></pre>