# 加载库import pandas as pd# 创建日期dates = pd.Series(pd.date_range("2/2/2002", periods=3, freq="M"))# 查看星期几dates.dt.weekday_name0 Thursday1 Sunday2 Tuesdaydtype: object用数据表示星期# 用数据表示星期dates.dt.weekday0 31 62 1dtype: int64