l1 = ['b','c','d','b','c','a','a']
l2 = []
[l2.append(i) for i in l1 if not i in l2]
l2 = []
[l2.append(i) for i in l1 if not i in l2]
python中删除list中重复的元素
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转载自blog.csdn.net/qq_25964837/article/details/80582874
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