Python standard library: Built-in function zip (*iterables)

This function is to implement a tuple list iteration from multiple sequences, that is, to get an item from each sequence, and then to generate a tuple of all the items, and then return those tuple-generated lists. If there are multiple sequences, the shortest sequence is the number of tuples. If you add a * in front of the parameter to reverse processing, it is returned from the list of tuples converted to detached.

Example:

#zip () L = [1, 2, 3]x = [4, 5, 6]print (list (Zip (l, x)) x = [4, 5]print (list (Zip (l, x)) y = (7, 8, 9) Print (List (Zip (l, x, y) )) Lxy = List (Zip (l, x, y)) print (List (Zip (*lxy)))

The resulting output is as follows:

[(1, 4), (2, 5), (3, 6)]

[(1, 4), (2, 5)]

[(1, 4, 7), (2, 5, 8)]

[(1, 2), (4, 5), (7, 8)]

Cai Junsheng qq:9073204 Shenzhen

Python standard library: Built-in function zip (*iterables)