獲取字符串的所有組合單詞

Question

我想要字符串“我的第一個程序”的所有組合單詞

Answer 1

>>> lst = "my first program".split()
>>> set(itertools.permutations(lst))

set([('first', 'my', 'program'),
     ('first', 'program', 'my'),
     ('my', 'first', 'program'),
     ('my', 'program', 'first'),
     ('program', 'first', 'my'),
     ('program', 'my', 'first')])

Answer 2

如果您想在Python中本地執行此操作...

def recurse_combinations(used, unused, dic ):

    if len(unused) == 0:#If unused is empty we are done
        dic[used]= True #Lets store the result and stop recursing
        return

    for i in range(len(unused)):
        #keep recursing by going through 'unused' characters and adding them to 'used'. Now lets take out the single character we are now using from 'unused'
        recurse_combinations( used + unused[i], unused[:i]+unused[i+1:], dic  )


def recurse_combinations_start( word="my first program"):
    dic = {}

    recurse_combinations( "" , word, dic)

    pprint ( dic.keys() )
    print len(dic.keys())

只需調用此recurse_combinations_start（）並更改要使用的單詞即可