C中*head和(*head)指针之间的差异

Question

以下是示例代码,而不是工作代码.我只想知道C中指针*head和(*head)指针之间的区别.

int  insert(struct node **head, int data) {

      if(*head == NULL) {
        *head = malloc(sizeof(struct node));
        // what is the difference between (*head)->next and *head->next ?
        (*head)->next = NULL;
        (*head)->data = data;
    }

Answer 1

*优先级低于->此

*head->next

相当于

*(head->next)

如果要取消引用head,则需要将取消引用运算符*放在括号内

(*head)->next