用C语言写一段链表逆序代码

好的，这里是使用C语言编写链表逆序的代码：

/* 定义链表节点结构体 */
struct Node {
    int data;
    struct Node* next;
};

/* 定义链表逆序函数 */
struct Node* reverseList(struct Node* head) {
    struct Node* prev = NULL;
    struct Node* curr = head;
    struct Node* next = NULL;
    
    while (curr != NULL) {
        /* 先保存下一个节点的指针 */
        next = curr->next;
        /* 将当前节点的指针指向前一个节点 */
        curr->next = prev;
        /* 更新前一个节点 */
        prev = curr;
        /* 更新当前节点 */
        curr = next;
    }
    
    /* 返回新的头节点 */
    return prev;
}

/* 测试代码 */
int main() {
    /* 创建链表 */
    struct Node node1 = {1, NULL};
    struct Node node2 = {2, NULL};
    struct Node node3 = {3, NULL};
    node1.next = &node2;
    node2.next = &node3;

    /* 打印原链表 */
    printf("原链表：\n");
    struct Node* curr = &node1;
    while (curr != NULL) {
        printf("%d ", curr->data);
        curr = curr->next;
    }

    /* 逆序链表 */
    struct Node* newHead = reverseList(&node1);

    /* 打印逆序后的链表 */
    printf("\n逆序后的链表：\n");
    curr = newHead;
    while (curr != NULL) {
        printf("%d ", curr->data);
        curr = curr->next;
    }

    return 0;
}

希望这段代码能够帮到你！如果有其他问题，欢迎继续问我哦~