ÉèÓÐÒÔÏÂÓï¾ä£ºstruct st{int n; struct st *next;};static struct st a[3]={5,&a[1],7,&a[2],9,.\0.},*p;p=&a[0];ÔòֵΪ6µÄ±í´ïʽÊÇ( )
A.p++->n
B.p->n++
C.(*p)ª±n++
D.++p->n