Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
323 views
in Technique[技术] by (71.8m points)

tuples - Getting the first elements per row in an array in Python?

Let's say i have an array of Tuples, s, in the form of:

s = ((1, 23, 34),(2, 34, 44), (3, 444, 234))

and i want to return another Tuple, t, consisting of the first element per row:

t = (1, 2, 3)

Which would be the most efficient method to do this? I could of course just iterate through s, but is there any slicker way of doing it?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

No.

t = tuple(x[0] for x in s)

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...