将文本文件存储在链表中

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

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

int main() {
    Node *head = NULL;
    Node *current = NULL;

    FILE *fp = fopen("text.txt", "r");
    if (fp == NULL) {
        printf("Cannot open file.\n");
        return 1;
    }

    char line[100];
    while (fgets(line, sizeof(line), fp)) {
        Node *new_node = (Node *) malloc(sizeof(Node));
        new_node->data = (char *) malloc(strlen(line) + 1);
        strcpy(new_node->data, line);
        new_node->next = NULL;

        if (head == NULL) {
            head = new_node;
            current = new_node;
        } else {
            current->next = new_node;
            current = new_node;
        }
    }

    fclose(fp);

    // 遍历链表并打印数据
    Node *ptr = head;
    while (ptr != NULL) {
        printf("%s", ptr->data);
        ptr = ptr->next;
    }

    // 释放内存
    Node *temp;
    while (head != NULL) {
        temp = head;
        head = head->next;
        free(temp->data);
        free(temp);
    }

    return 0;
}