#include <iostream>
#include <cstdlib>
#include <cstring>

using namespace std;

typedef struct file_node_s
{
    char filename[32];
    int filesize;

    file_node_s *next;
} FileNode;

int main()
{
    FileNode *head = NULL;
    FileNode *fn1 = (FileNode *)malloc(sizeof(FileNode));
    strcpy(fn1->filename, "数学");
    fn1->filesize = 1000;
    FileNode *fn2 = (FileNode *)malloc(sizeof(FileNode));
    strcpy(fn2->filename, "语文");
    fn2->filesize = 1200;
    FileNode *fn3 = (FileNode *)malloc(sizeof(FileNode));
    strcpy(fn3->filename, "英语");
    fn3->filesize = 1150;
    head = fn1;
    fn1->next = fn3;
    fn3->next = fn2;
    fn2->next = NULL;

    FileNode *p = head;
    while (p != NULL)
    {
        cout << "文件名: " << p->filename << ", 文件大小: " << p->filesize << endl;
        p = p->next;
    }

    free(fn1);
    free(fn2);
    free(fn3);
    free(head);
    return 0;
}