2019獨角獸企業重金招聘Python工程師標準>>>

?product(*iterables) --> product object

?| ?

?| ?Cartesian product of input iterables. ?Equivalent to nested for-loops.

?| ?

?| ?For example, product(A, B) returns the same as: ?((x,y) for x in A for y in B).

?| ?The leftmost iterators are in the outermost for-loop, so the output tuples

?| ?cycle in a manner similar to an odometer (with the rightmost element changing

?| ?on every iteration).

?| ?

?| ?To compute the product of an iterable with itself, specify the number

?| ?of repetitions with the optional repeat keyword argument. For example,

?| ?product(A, repeat=4) means the same as product(A, A, A, A).

?| ?

?| ?product('ab', range(3)) --> ('a',0) ('a',1) ('a',2) ('b',0) ('b',1) ('b',2)

?| ?product((0,1), (0,1), (0,1)) --> (0,0,0) (0,0,1) (0,1,0) (0,1,1) (1,0,0) ...

轉載于:https://my.oschina.net/zpengseu/blog/543437

總結

以上是生活随笔為你收集整理的python itertools product函数的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。