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df我想将Name Date Score Score2
Joe 26-12-2007 53.45 53.4500
Joe 27-12-2007 52.38 52.7399
Joe 28-12-2007 51.71 51.8500
列中的日期格式从Date转换为dd-mm-yyyy。转换后的数据帧将如下所示；
yyyy-mm-dd我正在使用python v3.6
编辑：重复的问题假定原始日期格式为Name Date Score Score2
Joe 2007-12-26 53.45 53.4500
Joe 2007-12-27 52.38 52.7399
Joe 2007-12-28 51.71 51.8500
。但是，我的原始日期格式为yyyy-mm-dd。如果要在该问题中使用答案，则转换后的日期是错误的。
How to change the datetime format in pandas
答案 0 :(得分：2)
我认为您需要这个：
df['Date'] = df['Date'].dt.strftime('%Y-%m-%d')
答案 1 :(得分：2)
使用：
df['Date'] = pd.to_datetime(df['Date']).dt.strftime('%Y-%m-%d')