有以下程序: void f(int *x,int *y) int *t; t=x;x=y;y=t;*x=*y; main() int a[8]=1,2,3,4,5,6,7,8,i,*p,*q; p=a;q=&a[7]; while (p>q) f(p,q);p++;q--; for(i=0; 1<8; 1++) printf( %d, ,a[i]); 程序运行后输出的结果是( )。
A.8,2,3,4,5,6,7,1,
B.5,6,7,8,1,2,3,4,
C.1,2,3,4,5,6,7,8,
D.8,7,6,5,4,3,2,1,