如何在Python中打印部分嵌套列表？

Question

so if I have a 2d list like:

A =[['   ', '   ', '   '],['   ', '   ', '   '],['   ', '   ', '   '],['   ', '   ', '   ']]
col = 3

My code:

for i in A:
    print('|', end = '')
    print(*i, sep = '', end = '|\n')
print(' ' + 3* col*'-')

This will print the whole list:

How should I modify it so that it just print the last 3 rows

Answer 1

To print the last three rows, which I assume means two rows with "sides" and one row at the bottom, change the line with the for statement to:

for i in A[-2:]:

If you want the last three rows of A itself (in addition to the bottom row of dashes), then

for i in A[-3:]: