python提取数据中的年月日和小时

1、笔者的数据格式如下图所示:

2、这里的数据文件为:train.csv提取年月日和小时代码如下所示: #读取文件train = pd.read_csv('tra足毂忍珩in.csv')#提取分钟train['minute'] = train['create_order_time'].apply(lambda x: int(x[14:16]))#提取小时train['hour'] = train['create_order_time'].apply(lambda x: int(x[11:13]))#提取天train['day'] = train['create_order_time'].apply(lambda x: int(x[8:10]))#提取月份train['month'] = train['create_order_time'].apply(lambda x: int(x[5:7]))#提取年数train['year'] = train['create_order_time'].apply(lambda x: int(x[0:4]))