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List operations

23 二月, 2015 - 17:05

The + operator concatenates lists:

>>> a = [1, 2, 3]>>> b = [4, 5, 6]>>> c = a + b>>> print c[1, 2, 3, 4, 5, 6]

Similarly, the * operator repeats a list a given number of times:

>>> [0] * 4[0, 0, 0, 0]>>> [1, 2, 3] * 3[1, 2, 3, 1, 2, 3, 1, 2, 3]

The first example repeats [0] four times. The second example repeats the list [1,2,3] three times.