Errno 13权限被拒绝：“ / test.txt”

Question

我应该更改哪行来解决此问题？

  

Errno 13权限被拒绝：'/test.txt'

     datadate fiscal_year_end
1  2012-08-31             831
2  2017-01-31             201
3  1999-12-31            1231
4  2009-02-28             228
5  2010-12-31            1231
6  2005-12-31            1231
7        <NA>             630
8  2010-09-30             928
9  2009-09-30             930
10 2018-01-31             201
11 2017-12-31            1231
12 2004-12-31            1231