基于键打印2个字典值的总和

Question

我的代码如下：

{'Bug Out Bag': ['q', 0.25, 100], 'XM': ['q', 0.25, 10]}

print('{}'.format(float(addition1)+float(addition2)) )

我收到错误：

addition1 = coins_in_the_bag[0]
KeyError: 0

谢谢！

Answer 1

coins_in_the_bag = {'Bug Out Bag': ['q', 0.25, 100], 'XM': ['q', 0.25, 10]}

coins_in_the_bag是dict。使用诸如

之类的密钥访问其内容

>>> coins_in_the_bag['Bug Out Bag']
# ['q', 0.25, 100]
>>> coins_in_the_bag['XM']
# ['q', 0.25, 10]

此外，coins_in_the_bag['Bug Out Bag']会返回一个列表。警惕在号码上拨打float，而不是整个列表