python merge 3列表为1个列表

Question

我想将3个列表合并到python中的单个列表中.例如,我有三个列表看起来:

a = [0, 3, 6, 9]
b = [1, 4, 7, 10]
c = [2, 5, 8, 11]

最后想得到

merged = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]

出a,b,c

有没有更快的方法来合并这3个列表？这是我的代码

merged=[]
a = [0, 3, 6, 9]
b = [1, 4, 7, 10]
c = [2, 5, 8, 11]
for i in range(0, len(a)) :
    merged.append(a[i])
    merged.append(b[i])
    merged.append(c[i])

Answer 1

import itertools as it

list(it.chain.from_iterable(it.izip(a,b,c)))