给定一个字符串:
String words = "Mary had a little lamb";
如何在保持原句子中单词出现顺序的情况下获得句子片段的组合???
example:
{'Mary had a little lamb'}
{'Mary had a little', 'lamb'}
{'Mary had a', 'little lamb'}, {'Mary had a', 'little', 'lamb'}
{'Mary had', 'a little lamb'}, {'Mary had', 'a little', 'lamb'}, {'Mary had', 'a', 'little lamb'}, {'Mary had', 'a', 'little', 'lamb'}
{'Mary', 'had a little lamb'}, {'Mary', 'had a little', 'lamb'}, {'Mary', 'had a', 'little lamb'} and so on...
提前致谢 :)