Get weekday / day of week for datetime column of dataframe - get weekday / day of week for datetime column of dataframe

problem ：

I have a DataFrame df like the following (excerpt, 'Timestamp' are the index): I have one as follows DataFrame df （ excerpts ,“ Time stamp ” It's the index ）：

Timestamp              Value2012-06-01 00:00:00     1002012-06-01 00:15:00     1502012-06-01 00:30:00     1202012-06-01 01:00:00     2202012-06-01 01:15:00      80...and so on.

I need a new column df['weekday'] with the respective weekday/day-of-week of the timestamps. I need a new column df['weekday'] Corresponding working day with timestamp / What day .

How can I get this? How can I get this ？

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Solution ：

Reference resources ： https://stackoom.com/en/question/1tWW2