如何在dataframe中创建开始和结束日期

import pandas as pd
import datetime

df = pd.DataFrame({'start_date': pd.date_range(start='2022-01-01', end='2022-01-31'),
                   'end_date': pd.date_range(start='2022-01-02', end='2022-02-01') - datetime.timedelta(days=1)})

print(df)

   start_date   end_date
0  2022-01-01 2022-01-01
1  2022-01-02 2022-01-02
2  2022-01-03 2022-01-03
3  2022-01-04 2022-01-04
4  2022-01-05 2022-01-05
5  2022-01-06 2022-01-06
6  2022-01-07 2022-01-07
7  2022-01-08 2022-01-08
8  2022-01-09 2022-01-09
9  2022-01-10 2022-01-10
10 2022-01-11 2022-01-11
11 2022-01-12 2022-01-12
12 2022-01-13 2022-01-13
13 2022-01-14 2022-01-14
14 2022-01-15 2022-01-15
15 2022-01-16 2022-01-16
16 2022-01-17 2022-01-17
17 2022-01-18 2022-01-18
18 2022-01-19 2022-01-19
19 2022-01-20 2022-01-20
20 2022-01-21 2022-01-21
21 2022-01-22 2022-01-22
22 2022-01-23 2022-01-23
23 2022-01-24 2022-01-24
24 2022-01-25 2022-01-25
25 2022-01-26 2022-01-26
26 2022-01-27 2022-01-27
27 2022-01-28 2022-01-28
28 2022-01-29 2022-01-29
29 2022-01-30 2022-01-30
30 2022-01-31 2022-01-31