向组合和排列添加文本

Question

我是编码新手。我有一个问题。如何将文本添加到我创建的组合和排列中？另外，有没有一种方法可以删除重复排列中的重复状态，即像这样打印？如果可以的话，是怎么做到的？

colour = list(itertools.permutations(["green","green","green","yellow","yellow"],5))
print("first one is " + colour[0] + " and second one is " + colour[1] + " and third one is " + colour[2] + " and fourth one is " + colour[3] + " and fifth one is " + colour[4])

我写了这样的代码，但它不起作用。在前五个元素的排列开始时，我想添加文本，例如第一个到第一行，第二个到第二行，我该怎么做？我希望我能够解释一下。如果您能提供帮助，我会很高兴。

Answer 1

我不确定我知道你在问什么，但要获得多个相同项目的不同排列，你可以使用 from sympy.utilities.iterables import multiset_permutations。

from sympy.utilities.iterables import multiset_permutations

colour = list(multiset_permutations(["green","green","green","yellow","yellow"],5))

for perm in colour:
    print(perm)

打印：

['green', 'green', 'green', 'yellow', 'yellow']
['green', 'green', 'yellow', 'green', 'yellow']
['green', 'green', 'yellow', 'yellow', 'green']
['green', 'yellow', 'green', 'green', 'yellow']
['green', 'yellow', 'green', 'yellow', 'green']
['green', 'yellow', 'yellow', 'green', 'green']
['yellow', 'green', 'green', 'green', 'yellow']
['yellow', 'green', 'green', 'yellow', 'green']
['yellow', 'green', 'yellow', 'green', 'green']
['yellow', 'yellow', 'green', 'green', 'green']