TP5 : Correction

Exercice 5.1 – Structures de boucle

• 
>>> i = 1
>>> while (i<=50) :
... print(i)
... i += 1
...

• 
>>> i = 0
>>> while (i <= 10) :
... print(i, 'x 9 =', i*9)
... i += 1
...

• 
>>> i = 65
>>> while (i <= 90) :
... print(chr(i), end=' ')
... i += 1
...


• 
>>> i = 5
>>> j = 10
>>> while (i > 0) :
... k = j
... while (k > 0) :
... print('*', end='')
... k -= 1
... j -= 2
... i -= 1
... print()
...


Exercice 5.2 – Fonctions

• 
  def ligne(n) :
  "Affichage d'une ligne de n étoiles"
  while (n > 0) :
  print('*', end='')
  n -= 1
  print()

  i = 5
j = 10
while (i > 0) :
ligne(j)
j -= 2
i -= 1


• def factorielle(n) :
  if (n == 0) :
  return 1
  else :
  r = 1
  while (n > 0) :
  r *= n
  n -= 1
  return r

  print(10, '! = ', factorielle(10))
print(1, '! = ', factorielle(1))
print(0, '! = ', factorielle(0))


• def maximum(x, y, z) :
  r = x
  if (r < y) :
  r = y
  if (r < z) :
  r = z
  return r

  print(maximum(5, 3, 4))


Exercice 5.3 – Retour en enfance avec la tortue

• 
  from turtle import *

  def carre(c) :
  i = 1
  while (i<=4) :
  forward(c)
  left(90)
  i += 1

  carre(100)
input()


• 
  from turtle import *

  def triangle(c) :
  i = 1
  while (i<=3) :
  forward(c)
  left(120)
  i += 1

  i = 1
while (i <= 6) :
triangle(100)
left(60)
i += 1
input()


TP4 : Correction