range python 3
# range(start, stop, step) # start = index to begin at (INCLUSIVE) # stop = generate numbers up to, but not including this number (EXCLUSIVE) # step = (can be omitted) difference between each number in the sequence arr = [19,5,3,22,13] # range(stop) for i in range(len(arr)): print(arr[i]) # prints: 19, 5, 3, 22, 13 # range(start, stop) for i in range(2, len(arr)): print(arr[i]) # prints: 3, 22, 13 # range(start, stop, step) for i in range(0, len(arr), 2): print(arr[i]) # prints: 19, 3, 13 # reverse: for i in range(len(arr)-1, -1, -1): print(arr[i])
