C语言题,答案为什么是5,求大神指点struct NODE { int num; stru_百度...答:struct NODE s[3]={{1, '\0'},{2, '\0'},{3, '\0'}}, *p, *q, *r;int sum=0;s[0].next=s+1; s[1].next=s+2; s[2].next=s;s[0]的next是s[1],s[1]的next是s[2],s[2]的next是s p=s;q=p->next;q是s[1]r=q->next;r是s[2]sum+=q->next->...