以下程序的执行结果是_______________________________________ #include
struct st { int x; int *y; } *p; int s[]={1,2,3,4}; struct st a[]={1, &s[0], 2, &s[1], 3, &s[2], 4, &s[3]}; main( ) { p=a; printf("%d,", p->x); printf("%d,",(++p)->x); printf("%d,", *(++p)->y); printf("%d\n", ++(*(++p)->y)); }