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[英]Merging a list of dictionaries based on common key values but with nested dict of lists
[英]Sort list of lists based on a dict values as key
我看到了這種基於dict值作為鍵對列表進行排序的方法。
我們可以使用此方法根據每個列表中的第一個值對列表列表進行排序嗎?
trial_dict = {1:'ABC', 2:'PQR', 3:'DEF'}
trial_list = [['ABC','-','+','/','+','-','*'],
['DEF','-','+','/','+','-','*'],
['PQR','-','+','/','+','-','*']]
排序后:
trial_list = [['ABC','-','+','/','+','-','*'],
['PQR','-','+','/','+','-','*'],
['DEF','-','+','/','+','-','*']]
您可以使用sorted()
函數。
trial_dict = {1:'ABC', 2:'PQR', 3:'DEF'}
trial_dict_inv = {v: k for k, v in trial_dict.items()}
trial_list = [['ABC','-','+','/','+','-','*'],
['DEF','-','+','/','+','-','*'],
['PQR','-','+','/','+','-','*']]
print sorted(trial_list, key= lambda z:trial_dict_inv[z[0]])
輸出:
[['ABC','-','+','/','+','-','*'],['PQR','-','+','/','+ ','-','*'],['DEF','-','+','/','+','-','*']]
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