2.21.c

这是单片机C51典型应用设计代码

#include <REG52.H>              
#include <stdio.h>

void main (void) 
{
int n,a[10],*ptr=a;
for( n = 0 ; n <= 9 ; n++ )
		scanf( "%d" , ptr++ ) ;
	printf("5------output! \n");
	ptr = a ;                         //指针变量重新指向数组首址
	for(n = 0 ; n <= 9 ; n++ )
		printf( " %4d ",*ptr++ ) ;
	printf( " \n " ) ;
    while (1) {};
}