Python

 range

print('*** for i in range(2, -2,-1) ***')
for i in range(2, -2,-1):
print(i)
print('*** for i in range(2, 4) ***')
for i in range(2, 4):
print(i)
print('*** for i in range(2, 10, 2) ***')
for i in range(2, 10, 2):
print(i)

print('*** for i in range(5) ***')
for i in range(5):
print(i)