如何在Python中交错字符串？

Question

如何在Python中交错字符串？

特定

s1 = 'abc'
s2 = 'xyz'

我怎么得到axbycz？

Answer 1

这是一种方法

>>> s1 = "abc"
>>> s2 = "xyz"
>>> "".join(i for j in zip(s1, s2) for i in j)
'axbycz'

它也适用于超过2个字符串

>>> s3 = "123"
>>> "".join(i for j in zip(s1, s2, s3) for i in j)
'ax1by2cz3'

这是另一种方式

>>> "".join("".join(i) for i in zip(s1,s2,s3))
'ax1by2cz3'

而另一个

>>> from itertools import chain
>>> "".join(chain(*zip(s1, s2, s3)))
'ax1by2cz3'

一个没有 zip

>>> b = bytearray(6)
>>> b[::2] = "abc"
>>> b[1::2] = "xyz"
>>> str(b)
'axbycz'

而且效率低下

>>> ((s1 + " " + s2) * len(s1))[::len(s1) + 1]
'axbycz'