a = [1, 3, 4, 2, 5, 6] b = [99, 199, 199, 299, 99, 99] c = {} for i in range(len(b)): print('***************************** ', b[i]) if str(b[i]) not in list(c.keys()): c['%s' % b[i]] = [a[i]] elif str(b[i]) in list(c.keys()): c['%s' % b[i]].append(a[i]) print(c) # {'99': [1, 5, 6], '299': [2], '199': [3, 4]} print('---------------------------------------------------------------------------------------------------------') def aaa(a, b): dic = {} for i in range(0, len(b)): if b[i] in dic: dic[b[i]].append(str(a[i])) else: dic[b[i]] = list(str(a[i])) print(dic) a = [1, 3, 4, 2, 5, 6] b = [99, 199, 199, 299, 99, 99] aaa(a, b) # {299: ['2'], 99: ['1', '5', '6'], 199: ['3', '4']}
python 列表 合并 1
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