Python3如何實現兩個列表的交叉列印？

01-03

例如：titlelist = [T1,T2,T3]
urlList = [U1,U2,U3]
怎樣將兩個列表交叉列印出這樣的效果:

T1
U1
T2
U2

T3
U3

請看

def iter_cross(*iterables): copy = [iter(item) for item in iterables] while copy: # 一直迭代到copy列表為空 for item in copy: try: yield next(item) except StopIteration: # 如果next()拋出StopIeration異常 # 那就把item從copy中刪去 copy.pop(copy.index(item))

上面這個函數可以對任意多個list或tuple交叉迭代，先看看你要求的效果

titlelist = ["T1","T2","T3"] urllist = ["U1","U2","U3"]


for i in iter_cross(titlelist, urllist):

    print(i, end=" ")

&>&>&> T1 U1 T2 U2 T3 U3

再舉個演示

import string


l0 = range(1, 27)

l1 = string.ascii_lowercase

l2 = string.ascii_uppercase
for i in iter_cross(l0, l1, l2):

    print(i, end=" ")

&>&>&> 1 a A 2 b B 3 c C 4 d D 5 e E 6 f F 7 g G 8 h H 9 i I 10 j J 11 k K 12 l L 13 m M 14 n N 15 o O 16 p P 17 q Q 18 r R 19 s S 20 t T 21 u U 22 v V 23 w W 24 x X 25 y Y 26 z Z