字符串的排列

#include "iostream"using namespace std;void permu(char * pStr, char * pBegin){    if (*pBegin == '\0')    {        printf("%s\n",pStr);    }    else    {        for (char *pCh = pBegin; *pCh != '\0'; pCh++)        {            char temp = *pCh;            *pCh = *pBegin;            *pBegin = temp;            permu(pStr , pBegin+1);            temp = *pCh;            *pCh = *pBegin;            *pBegin = temp;        }    }}void p(char *pStr){    if (NULL == pStr)    {        return;    }    permu(pStr,pStr);}void main(void){    char s[5] = {"abc"};    p(s);    getchar();}

abc 的全排列
abc
acb
bac
bca
cab
cba