python中zip的用法

001、

>>> a = [1, 2, 3]
>>> b = [4, 5, 6]
>>> c = [7, 8, 9, 10, 11]     ## 测试列表
>>> list(zip(a,b))
[(1, 4), (2, 5), (3, 6)]
>>> list(zip(a,c))            ## 返回列表元祖
[(1, 7), (2, 8), (3, 9)]

002、

>>> name = ('jack', 'alex', 'sony', 'joey')
>>> age = (25, 28, 21, 30)
>>> for a, n in zip(name, age):
...     print(a, n)
...
jack 25
alex 28
sony 21
joey 30

003、

>>> a = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
>>> list(zip(*a))                           ## 可用于二维列表的转置
[(1, 4, 7), (2, 5, 8), (3, 6, 9)]