#include <stdio.h>#include <stdlib.h>#include <string.h>#define NR(x) (sizeof(x)/sizeof(x[0]))//數組左移 int buffer_left_move(int *buffer , int buf_len){	int i ;	char tmp = buffer[0];	for(i = 1 ; i < buf_len ; i++)	{		buffer[i-1] = buffer[i] ;	}	buffer[buf_len-1] = tmp ;}//數組右移 int buffer_right_move(int *buffer , int buf_len){	int i ;	char tmp = buffer[buf_len - 1];	for(i = buf_len ; i > 0 ; i--)	{		buffer[i] = buffer[i-1] ; 	}	buffer[0] = tmp ;}//數組翻轉 int buffer_turn_over(int *buffer , int buf_len){	int size = buf_len ; 	int i , tmp; 	for(i = 0 ; i < size/2 ; i++)	{		tmp = buffer[i] ; 		buffer[i] = buffer[size-1-i] ;		buffer[size-1-i] = tmp;	}}//打印數組 void print_buffer(int *buffer, int buf_len){	int i ;	system("cls");	printf("please input /'a' or /'b' or /'w' /n");	for(i = 0 ; i < buf_len ; i++)	{		printf("%d",buffer[i]);	}	putchar('/n');} int main(void){	int buffer[5] = {1,2,3,4,5} ;		print_buffer(buffer,NR(buffer));	while(1)	{		switch(getch())		{				//左邊 			case 'a': 					buffer_left_move(buffer,NR(buffer)) ;					print_buffer(buffer,5);					break ;			//右邊 			case 'd': 					buffer_right_move(buffer,NR(buffer));					print_buffer(buffer,5);					break ;			//翻轉 			case 'w':					buffer_turn_over(buffer,NR(buffer)) ;					print_buffer(buffer,5);					break ;		}	}	return 0 ; }

please input 'a' or 'b' or 'w'12345