#include<stdio.h>

void move(char *s)  //循环右移1位

{

    if(s==NULL)

        return;

    char *p=s,*q=s;

    char temp;

    while(*p!='\0')

    {

        p++;

    }

    p--;

    q=p-;

    temp=*p;

    while(p!=s)

    {

        *p=*q;

        q--;

        p--;

    }

    *s=temp;

}

void LoopMove( char *pStr,int steps)//循环右移steps位

{

    int i=;

    while(i<steps)

    {

        move(pStr);

        i++;

    }

}

void main()

{

    char str[]="abcdef";

    //char *str="abcdef";  这里“abcdef”是常量，不能通过str指针修改常量值，这种写法错误

    LoopMove(str,);

    printf("%s",str);

}

#include<stdio.h>

#include<string.h>

#include<malloc.h>

void LoopMove(char *pStr,int steps)

{

    int len=strlen(pStr);

    int n=len-steps;

    char *temp=(char *)malloc(sizeof(char *));

    strcpy(temp,pStr+n);

    strcpy(temp+steps,pStr);

    *(temp+len)='\0';

    strcpy(pStr,temp);

}

void main()

{

    char str[]="abcdef";

    LoopMove(str,);

    printf("%s",str);

}

#include<stdio.h>

#include<string.h>

#include<malloc.h>

void LoopMove(char *pStr,int steps)

{

    int len=strlen(pStr);

    int n=len-steps;

    char *temp=(char *)malloc(sizeof(char *));

    memcpy(temp,pStr+n,steps);//

    memcpy(pStr+steps,pStr+steps,n);

    memcpy(pStr,temp,steps);

}

void main()

{

    char str[]="abcdef";

    LoopMove(str,);

    printf("%s",str);

}