在不影响数值的情况下反转字符串列表

Question

我有一个字符串列表.

arr = ['17 -> 16 -> 1 -> 8 -> 0', '5 -> 2 -> 3 -> 6 -> 0']

我想要反转字符串,我正在使用此代码:

x = arr[::-1]
x = x.replace(">-", "->")
x = x[5:]

但输出是:

arr = ['0 -> 8 -> 1 -> 61 -> 71', '0 -> 6 -> 3 -> 2 -> 5']

然而,我需要输出为:

arr = ['0 -> 8 -> 1 -> 16 -> 17', '0 -> 6 -> 3 -> 2 -> 5']

Answer 1

您应该将字符串拆分为箭头字符,反向,然后将它们连接起来.这有效:

[' -> '.join(reversed(a.split(' -> '))) for a in arr]