Flow of Control

The flow of control of a program is changed by if-statements:

if a > 3:

  a = a + 1 

elif b < 7: 

  b = b * a

else:

  a = a + b 

end

and while-loops:

l = [1,2,3,4,5]

i = 0

while i < 5:

  l[i] = l[i]*2

  i = i + 1

end

You can use break to stop a loop prematurely and continue to pass control to the next iteration of the nearest enclosing loop.