如何在C中调用单链表中的字符串

struct Node {
    char* str;
    struct Node* next;
};

struct Node* head = NULL;  // 头节点指针

// 创建节点
struct Node* newNode = (struct Node*)malloc(sizeof(struct Node));
newNode->str = (char*)malloc(strlen("Hello") + 1);  // 分配足够的内存来存储字符串
strcpy(newNode->str, "Hello");
newNode->next = NULL;

// 将节点添加到链表中
if (head == NULL) {
    head = newNode;
} else {
    struct Node* current = head;
    while (current->next != NULL) {
        current = current->next;
    }
    current->next = newNode;
}

struct Node* current = head;
while (current != NULL) {
    printf("%s\n", current->str);
    current = current->next;
}