# ``inplace`` If ``True``, performs operation inplace and returns None. df = df.drop_duplicates([*,*,], keep="first", inplace=False)1.2 保留最后一个
df = df.drop_duplicates([*,*,], keep="last", inplace=False)1.3 重复全部删除
df = df.drop_duplicates([*,*,], keep=False, inplace=False)
