C#查找字符串所有排列组合的方法
本文实例讲述了C#查找字符串所有排列组合的方法。分享给大家供大家参考。具体实现方法如下:
//1.removefirstchar //2.findpermutationsoftherestofchars //3.Attachthefirstchartoeachofthosepermutations. //3.1foreachpermutation,movefirstCharinallindexes //toproduceevenmorepermutations. //4.Returnlistofpossiblepermutations. publicstring[]FindPermutations(stringword) { if(word.Length==2) { char[]_c=word.ToCharArray(); strings=newstring(newchar[]{_c[1],_c[0]}); returnnewstring[] { word, s }; } List<string>_result=newList<string>(); string[]_subsetPermutations=FindPermutations(word.Substring(1)); char_firstChar=word[0]; foreach(stringsin_subsetPermutations) { string_temp=_firstChar.ToString()+s; _result.Add(_temp); char[]_chars=_temp.ToCharArray(); for(inti=0;i<_temp.Length-1;i++) { chart=_chars[i]; _chars[i]=_chars[i+1]; _chars[i+1]=t; strings2=newstring(_chars); _result.Add(s2); } } return_result.ToArray(); }
希望本文所述对大家的C#程序设计有所帮助。