有大哥能逐句解释一下这段代码吗

void intersectionset(NODE *A, NODE *B,NODE*C) { NODE *r, *p, *q, *s; C = (NODE *)malloc(sizeof(NODE)); r = C; p = A; q = B; while ((p!=NULL) && (q!=NULL)) { if (p->data < q->data) p = p->next; else if (p->data > q->data) q = q->next; else if (p->data == q->data) { s = (NODE*)malloc(sizeof(NODE)); s->data = p->data; r->next = s; r = s; p = p->next; q = q->next; } } r->next = NULL; }

请你用代码段控件来提交代码。