Itertools相当于嵌套循环“for x in xs:for y in ys ......” [英]Itertools equivalent of nested loop “for x in xs: for y in ys…”
你怎么能在一行中写一个带有 where 子句的“for x in xs”? [英]How can you write a "for x in xs" with a where clause on one line?
为什么在 Python 中 filter(sorted(xs)) 比 sorted(filter(xs)) 快? [英]Why is filter(sorted(xs)) faster than sorted(filter(xs)) in Python?