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Python Language Une addition


Exemple

a, b = 1, 2

# Using the "+" operator:
a + b                  # = 3

# Using the "in-place" "+=" operator to add and assign:
a += b                 # a = 3 (equivalent to a = a + b)

import operator        # contains 2 argument arithmetic functions for the examples

operator.add(a, b)     # = 5  since a is set to 3 right before this line

# The "+=" operator is equivalent to: 
a = operator.iadd(a, b)    # a = 5 since a is set to 3 right before this line

Combinaisons possibles (types intégrés):

  • int et int (donne un int )
  • int et float (donne un float )
  • int et complex (donne un complex )
  • float et float (donne un float )
  • float et complex (donne un complex )
  • complex et complex (donne un complex )

Remarque: l'opérateur + est également utilisé pour concaténer des chaînes, des listes et des tuples:

"first string " + "second string"    # = 'first string second string'

[1, 2, 3] + [4, 5, 6]                # = [1, 2, 3, 4, 5, 6]