如何在一个随机列表中并行遍历两个列表答案

【问题标题】：How to iterate through two lists in parallel with one list randomized如何在一个随机列表中并行遍历两个列表
【发布时间】：2015-07-02 18:35:42
【问题描述】：

This thread 解释了如何遍历两个并行列表。

但是，当我将该课程应用于打乱列表时，我收到以下错误：“zip 参数 #2 不支持迭代。”为什么打乱列表不支持迭代？我还能如何随机化答案选择的顺序？

import random

def answers():
    answerList = random.shuffle([answer1, answer2, answer3, correct])
    numberList = ["1: ", "2: ", "3: ", "4: "]
    for x,y in zip(numberList,answerList):
        print x,y 

prompt = "What is the average migrating speed of a laden swallow?"
answer1 = "Gas or electric?"
answer2 = "Metric or English?"
answer3 = "Paper or plastic?"
correct = "African or European?"

print prompt
answers()

【问题讨论】：

标签： list python-2.7 iteration tuples

【解决方案1】：

random.shuffle 洗牌就地。执行以下操作：

answerList = [answer1, answer2, answer3, correct]
random.shuffle(answerList)

【讨论】：

感谢您的回复。你能解释一下为什么这两种方法会产生不同的结果吗？
random.shuffle 返回无。而None不支持迭代。

【解决方案2】：

感谢 pacholik 的解决方案。

import random

def answers():
    answerList = [answer1, answer2, answer3, correct]
    random.shuffle(answerList)
    numberList = ["1: ", "2: ", "3: ", "4: "]
    for x,y in zip(numberList,answerList):
        print x,y 

prompt = "What is the average migrating speed of a laden swallow?"
answer1 = "Gas or electric?"
answer2 = "Metric or English?"
answer3 = "Paper or plastic?"
correct = "African or European?"

print prompt
answers()

【讨论】：