• 2022-06-05
    struct point{ int x;int y;};struct rect{ struct point pt1; struct point pt2;};struct rect rt;struct rect *rp = &rt;则下面不正确的引用是()。
    A: rt.pt1.x
    B: *(rp).pt1.x
    C: rp->pt1.x
    D: rt->pt1.x