Question

octopusList = {"first": ["red", "white"],
            "second": ["green", "blue", "red"],
            "third": ["green", "blue", "red"]}
squidList = ["first", "second", "third"]

for i in range(1):
    squid = random.choice(squidList)
    octopus = random.choice(octopusList[squid])

print squid + " " + octopus

有人可以帮我用JavaScript写这个吗？我的大部分程序都写入了JavaScript，但具体来说，如何获得一个用JavaScript编写的列表列表让我感到困惑。我是一般的编程新手，所以感谢你提出我的问题。：d

Answer 1

首先，我想说for i in range(1):行没用。它只会执行一次内容，而您没有使用i。

无论如何，你发布的代码应该可以在JavaScript中进行一些调整。首先，您需要重新实现random.choice。你可以用这个：

function randomChoice(list) {
    return list[Math.floor(Math.random()*list.length)];
}

此后，这很简单：

var octopusList = {
    "first": ["red", "white"],
    "second": ["green", "blue", "red"],
    "third": ["green", "blue", "red"]
};
var squidList = ["first", "second", "third"];

var squid = randomChoice(squidList);
var octopus = randomChoice(octopusList[squid]);

// You could use alert instead of console.log if you want.
console.log(squid + " " + octopus);

Answer 2

js> octopusList = {"first": ["red", "white"],
               "second": ["green", "blue", "red"],
               "third": ["green", "blue", "red"]}

js> squidList = ["first", "second", "third"]
first,second,third

js> squid = squidList[Math.floor(Math.random() * squidList.length)]
third

js> oct_squid = octopusList[squid]
green,blue,red

js> octopus = oct_squid[Math.floor(Math.random() * oct_squid.length)]
blue

Answer 3

...具体如何获取包含Javascript编写的列表的列表让我感到困惑。

您也可以（也）使用JavaScript在列表中创建一个列表，如下所示：

var listWithList = [["a,b,c"],["d,"e","f"], ["h","i","j"]]

因为你在JavaScript中编码

o = { "first" : ["red","green"],
      "second": ["blue","white"]}

您实际上是在创建一个包含两个属性first和second的JavaScript对象，其值是列表（或数组），每个属性都包含元素。这可以正常工作，你可以在icktoofay回答中看到

由于这是一个JavaScript对象，您可以使用此语法来检索它们

listOne = o.first;
listTwo = o.second;

Answer 4

考虑使用json模块将数据结构从Python转换为JSON格式（这是有效的Javascript） - 反之亦然，如果您需要的话。例如：

>>> octopusList = {"first": ["red", "white"],
...             "second": ["green", "blue", "red"],
...             "third": ["green", "blue", "red"]}
>>> print json.dumps(octopusList)
{"second": ["green", "blue", "red"], "third": ["green", "blue", "red"], "first": ["red", "white"]}
>>>

如你所见，在这种情况下，“翻译”只是一个身份（字典条目中的排序变化[[在Python中] /对象属性[[在Javascript]]是无关紧要的，因为Python的两个词都没有也没有JS的对象有任何“排序”的概念; - ）。

将Python翻译成JavaScript - 列表？

4 个答案: