在python中生成嵌套元组的所有组合
在python中生成嵌套元组的所有组合
提问于 2013-06-20 01:05:53
以下是一个简短但完整的Berkeley Logo程序：
to choices :menu [:sofar []]
if emptyp :menu [print :sofar stop]
foreach first :menu [(choices butfirst :menu sentence :sofar ?)]
end下面是你如何使用它。你打字
choices [[small medium large]
[vanilla [ultra chocolate] lychee [rum raisin] ginger]
[cone cup]]和Logo回复
small vanilla cone
small vanilla cup
small ultra chocolate cone
small ultra chocolate cup
small lychee cone
small lychee cup
small rum raisin cone
small rum raisin cup
small ginger cone
small ginger cup
medium vanilla cone
medium vanilla cup
medium ultra chocolate cone
medium ultra chocolate cup
medium lychee cone
medium lychee cup
medium rum raisin cone
medium rum raisin cup
medium ginger cone
medium ginger cup
large vanilla cone
large vanilla cup
large ultra chocolate cone
large ultra chocolate cup
large lychee cone
large lychee cup
large rum raisin cone
large rum raisin cup
large ginger cone
large ginger cup来源：http://www.eecs.berkeley.edu/~bh/logo-sample.html
在python中如何做到这一点呢？
回答 1
Stack Overflow用户
回答已采纳
发布于 2013-06-20 01:13:25
像往常一样，itertools module提供了一个解决方案：
>>> choices = [["small", "medium", "large"],
... ["vanilla", "ultra chocolate", "lychee", "rum raisin", "ginger"],
... ["cone", "cup"]]
>>> from itertools import product
>>> print("\n".join(" ".join(item) for item in product(*choices)))
small vanilla cone
small vanilla cup
small ultra chocolate cone
small ultra chocolate cup
small lychee cone
small lychee cup
small rum raisin cone
small rum raisin cup
small ginger cone
small ginger cup
medium vanilla cone
<etc...>页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/17197209
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