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[英]Efficient way to get from {key1: [value1, value2...]} to {value1: [key1, key2...]}
[英]Extract key1:value1 from dictionary 1 and key1:value1 from dictionary 2, assign them to 4 different variables, loop
我需要做什么:
例子:
d_one = {1:z, 2:x, 3:y}
d_two = {9:o, 8:n, 7:m}
結果必須是
a = 1
b = z
c = 9
d = o
(在此處使用這些變量調用其他一些方法)(繼續下一次迭代)
a = 2
b = x
c = 8
d = n
(等等)
我的大腦在這件事上超負荷了。 既然我不能嵌套for循環來完成這個任務,我猜'and'語句的正確用法應該可以做到嗎? 我不知道怎么弄,所以我試着把它分開......
d_one = {'1':'z', '2':'x', '3':'y'}
d_two = {'9':'o', '8':'n', '7':'m'}
for i in range(0, len(d_one)):
for a in list(d_one.keys())[i]:
a = d_one.keys()[i]
b = d_one[a]
for c in list(d_two.keys())[i]:
c = d_two.keys()[i]
d = d_two[c]
print(a, b, c, d)
output:
TypeError: 'dict_keys' object is not subscriptable
嘗試這個:
d_one = {'1':'z', '2':'x', '3':'y'}
d_two = {'9':'o', '8':'n', '7':'m'}
for (a,b), (c,d) in zip(d_one.items(), d_two.items()):
print(a, b, c, d)
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