结构题

#include <stdio.h>
#include <string.h>
struct Book
{
    char title[1000];
    int id;
 } ;
 int main()
 {
    struct Book book1;
    struct Book book2;
    strcpy(book1.title,"hzzyst");
    book1.id=456321;
    printf("%s,%d\n",book1.title,book1.id);
    strcpy(book2.title,"ysthzz");
    book2.id=987654;
    printf("%s,%d",book2.title,book2.id);
    return 0;
 }