c - C语言中在链表末尾插入节点

Question

在 LinkedList 的中间或开头插入节点没有任何问题。然而，最后却不同了。当我尝试打印这些值时，它给出了地址:

现在，这是我构建 LinkedList 的方法:

employeeData ed[4];

node *head = NULL, *list = NULL;

for (int i = 0; i < 4; i++)
    fscanf(file, "%d %s %d %d %lf", &ed[i].EMP_ID, ed[i].name, &ed[i].dept, &ed[i].rank, &ed[i].salary);

head = (node *)malloc(sizeof(node));

head->employee = ed[0];
head->next = NULL;

list = head;

for (int i = 1; i < 5; i++){

    node *ptr = (node *)malloc(sizeof(node));

    ptr->employee = ed[i];
    ptr->next = NULL;

    head->next = ptr;

    head = head->next;
}

这是我向其添加节点的方法:

node *newNode = (node *)malloc(sizeof(node)), *temptr = list, *endNode = list;

newNode->employee.EMP_ID = id;
strcpy(newNode->employee.name, name);
newNode->employee.dept = dept;
newNode->employee.rank = rank;
newNode->employee.salary = salary;
newNode->next = NULL;

while (endNode->next != NULL) endNode = endNode->next;

if (id < temptr->employee.EMP_ID){
    newNode->next = list;
    list = newNode;
}
else if (id > endNode->employee.EMP_ID){
    endNode->next = newNode;
}
else{

    while ((temptr->next != NULL) && (temptr->next->employee.EMP_ID < newNode->employee.EMP_ID))
        temptr = temptr->next;

    newNode->next = temptr->next;

    temptr->next = newNode;
}

当我尝试删除该值时，它会删除它。但是，它不显示该值。

我做错了什么？

谢谢

Answer 1

正如 BLUEPIXY 所说，问题出在构建过程中。

索引需要在 4 for (int i = 1; i < 4; i++) 中

而且，我还更改了打印列表的方式。

来自

while (temp->next != NULL){
    printf("");
    temp = temp->next;
}

至

while (temp != NULL){
    printf("");
    temp = temp->next;
}