Python同时迭代两个列表 [英] Python iterate over two lists simultaneously

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问题描述



类似于

<$ p

有没有一种方法可以在python中同时查找两个或多个列表? x,y在a中,b:
print x,




$ y

输出

  1 4 
2 5
3 6

I知道我可以用元组来做到这一点,比如

$ p code> l = [(1,4),(2,5),(3) ,6)]
for x,y in l:
print x,y


zip( ) function 配对列表:

  for x,y in zip(a ,b):

演示:

 >>> a = [1,2,3] 
>>> b = [4,5,6]
>>> x,y in zip(a,b):
... print x,y
...
1 4
2 5
3 6


Is there a way in python to forloop over two or more lists simultaneously?

Something like

a = [1,2,3]
b = [4,5,6]
for x,y in a,b:
    print x,y

to output

1 4
2 5
3 6

I know that I can do it with tuples like

l = [(1,4), (2,5), (3,6)]
for x,y in l:
    print x,y

解决方案

You can use the zip() function to pair up lists:

for x, y in zip(a, b):

Demo:

>>> a = [1,2,3]
>>> b = [4,5,6]
>>> for x, y in zip(a, b):
...     print x, y
... 
1 4
2 5
3 6

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