enumerate&&zip

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enumerate可以取代以往的遍历

for i in enumerate('python'):print i

>>>
(0, 'p')
(1, 'y')
(2, 't')
(3, 'h')
(4, 'o')
(5, 'n')

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print zip('today')print zip('today','12345')print zip('today','123456')print zip('today','1234')

[('t',), ('o',), ('d',), ('a',), ('y',)]
[('t', '1'), ('o', '2'), ('d', '3'), ('a', '4'), ('y', '5')]
[('t', '1'), ('o', '2'), ('d', '3'), ('a', '4'), ('y', '5')]
[('t', '1'), ('o', '2'), ('d', '3'), ('a', '4')]

zip 的用法比如有很多类似格式的数据诶.... (不知道怎么表达啦)

就像从数据库的表里有很多条要取一个属性的全部值

s=('lisa','f',20,165,'1000000')r=('joy','m',23,184,'1000098')p=('jessie','f',26,164,'90777345')print zip(s,p,r)print zip(s,p,r)[0]

>>>

[('lisa', 'jessie', 'joy'), ('f', 'f', 'm'), (20, 26, 23), (165, 164, 184), ('1000000', '90777345', '1000098')]

('lisa', 'jessie', 'joy')