我有一個字典：{'Key_1': ['Value_1'], 'Key_2': ['Value_1', 'Value_2'], 'Key_3': ['Value_2'], 'Key_4': ['Value_3']}我想獲得具有相同值的鍵，例如，輸出如下：Key_1 and Key_2 have same Value_1Key_2 and Key_3 have same Value_2我試過這個來獲得共同的價值觀：list_1 = []output = []for value in dictionary.values(): for x in value: if x in list_1: if not x in output: output.append(x) else: list_1.append(x)有了這個，我得到了共同的價值，但沒有相應的鍵。
1 回答
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d = {'Key_1': ['Value_1'], 'Key_2': ['Value_1', 'Value_2'], 'Key_3': ['Value_2'], 'Key_4': ['Value_3']}
out = {}
for k, v in d.items():
for vv in v:
out.setdefault(vv, []).append(k)
for k, v in out.items():
if len(v) > 1:
print('{} have same {}'.format(' and '.join(v), k))
印刷：
Key_1 and Key_2 have same Value_1
Key_2 and Key_3 have same Value_2
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