首页 > 代码库 > ab的排列 aa , ab ba,bb

ab的排列 aa , ab ba,bb

package reverseList;public class Main {    static void perm(char c[],int lev,char ans[])    {        if(c.length==lev)        {            System.out.println(String.valueOf(ans));        }        else        {        for(int i=0;i<c.length;i++)        {            ans[lev]=c[i];            perm(c,lev+1,ans);                                            }        }            }    public static void main(String[] args) {        // TODO Auto-generated method stub        char c[]="ab".toCharArray();        char ans[]=new char[3];        perm(c,0,ans);                    }}