2019-06-28
阅读量:
695
zip和sorted
zip(seq1 [, seq2 […]]) -> [(seq1[0], seq2[0] …), (…)]把多个序列合并成一个序列list
sorted(iterable, cmp=None, key=None, reverse=False) 对一个序列排序
In [283]: zip([1,2,3], ('a', 'b', 'c'))
Out[283]: [(1, 'a'), (2, 'b'), (3, 'c')]
range() xrange() 返回一个整数序列
In [274]: [x for x in xrange(10)]
Out[274]: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
In [275]: [x for x in xrange(5, 10)]
Out[275]: [5, 6, 7, 8, 9]
In [276]: [x for x in xrange(5, 10, 2)]
Out[276]: [5, 7, 9]
In [277]: range(10)
Out[277]: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
In [278]: range(5, 10)
Out[278]: [5, 6, 7, 8, 9]
In [279]: range(5, 10, 2)
Out[279]: [5, 7, 9]
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