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                             p = head;              //有序链表不为空 
    while(p->num < node->num && p != NULL)       //p指向的节点的学号比插入节点的学号小,并且它不等于NULL 
    { 
        t = p;              //保存当前节点的前驱,以便后面判断后处理 
        p = p->next;        //后移一个节点 
    } 
    if (p == head)        //刚好插入第一个节点之前 
    { 
        node->next = p; 
        head = node; 
    } 
    else                 //插入其它节点之后 
    { 
        t->next = node;        //把node节点加进去 
        node->next = p; 
    } 
    n += 1;            //插入完毕,节点总数加1 
    return head; 
} 
/* 
以上函数的测试程序: 
提示:根据测试函数的不同注释相应的程序段,这也是一种测试方法。 
*/ 
int main(void) 
{ 
    struct student *head; 
    struct student *stu; 
    int thenumber; 
    // 测试Create()、Print()  
    head = Create(); 
    Print(head); 
    //测试Del() 
    printf("nWhich one delete: "); 
    scanf("%d",&thenumber); 
    head = Del(head,thenumber); 
    Print(head); 
    //测试Insert() 
    stu = (struct student *)malloc(LEN); 
    printf("nPlease input insert node -- num,score: "); 
    scanf("%d %f",&stu->num,&stu->score); 
    printf("nInsert behind num: "); 
    scanf("%d",&thenumber); 
    head = Insert(head,thenumber,stu); 
    Print(head); 
    //测试Reverse() 
    printf("nReverse the LinkList: n"); 
    head = Reverse(head); 
    Print(head); 
    //测试SelectSort() 
    printf("nSelectSort the LinkList: n"); 
    head = SelectSort(head); 
    Print(head); 
    //测试InsertSort() 
    printf("nInsertSort the LinkList: n"); 
    head = InsertSort(head); 
    Print(head); 
    //测试BubbleSort() 
    printf("nBubbleSort the LinkList: n"); 
    head = BubbleSort(head); 
    Print(head); 
    printf("nSortInsert the LinkList: n"); 
    //测试SortInsert():上面创建链表,输入节点时请注意学号num从小到大的顺序 
    stu = (struct student *)malloc(LEN); 
    printf("nPlease input insert node -- num,&stu->score); 
    head = SortInsert(head,stu); 
    Print(head); 
    //销毁链表 
    DestroyList(head); 
    printf ("n"); 
    system ("pause"); 
}                         (编辑:滁州站长网) 
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