for

>>> for i in range(5):

print(i)

 

 

0

1

2

3

4

>>> for i in range(0, 5):

print(i)

 

 

0

1

2

3

4

>>> for i in range(1, 5):

print(i)

 

 

1

2

3

4

>>> for i in range(5, 0, -1):

print(i)

 

 

5

4

3

2

1