在单个链表中插入字符串

typedef struct Node {
    char data;
    struct Node* next;
} Node;

void insertAtEnd(Node** head_ref, char new_data) {
    Node* new_node = (Node*)malloc(sizeof(Node));
    Node* last = *head_ref;
    new_node->data = new_data;
    new_node->next = NULL;
 
    if (*head_ref == NULL) {
        *head_ref = new_node;
        return;
    }
 
    while (last->next != NULL)
        last = last->next;
 
    last->next = new_node;
    return;
}

void insertString(Node** head_ref, char* str) {
    for (int i = 0; str[i] != '\0'; i++) {
        insertAtEnd(head_ref, str[i]);
    }
}

int main() {
    Node* head = NULL;
    char str[] = "Hello, World!";
    insertString(&head, str);
    
    // 打印链表内容
    Node* temp = head;
    while (temp != NULL) {
        printf("%c ", temp->data);
        temp = temp->next;
    }
    
    return 0;
}