[已解决]结构体指针

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

struct Date
{
    int year;
    int month;
    int day;
};
struct Book
{
    char name[128];
    char author[40];
    float price;
    struct Date date;       
};//书籍结构体

void getbook(struct Book *);
void printbook(struct Book *);

void getbook(struct Book *book)
{
    printf("请输入书名：\n");
    scanf("%s",book->name);
    printf("请输入作者：\n");
    scanf("%s",book->author);
    printf("请输入价格：\n");
    scanf("%f",&book->price);
    printf("请输入日期：\n");
    scanf("%d-%d-%d",&book->date.year,&book->date.month,&book->date.day);
}//输入书籍信息
void printbook(struct Book *book)
{
    printf("书名为：%s\n",book->name);
    printf("作者为：%s\n",book->author);
    printf("价格为：%f\n",book->price);
    printf("日期为：%d-%d-%d\n",book->date.year,book->date.month,book->date.day);
}//输出书籍信息
int main()
{
    struct Book *pb = malloc(sizeof(*pb));

    getbook(pb);
    printbook(pb);
    free(pb);
    return 0;
}

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

struct Date
{
    int year;
    int month;
    int day;
};
struct Book
{
    char name[128];
    char author[40];
    float price;
    struct Date date;       
};//书籍结构体

void getbook(struct Book *);
void printbook(struct Book *);

void getbook(struct Book *book)
{
    printf("请输入书名：\n");
    scanf("%s",book->name);
    printf("请输入作者：\n");
    scanf("%s",book->author);
    printf("请输入价格：\n");
    scanf("%f",&book->price);
    printf("请输入日期：\n");
    scanf("%d-%d-%d",&book->date.year,&book->date.month,&book->date.day);
}//输入书籍信息
void printbook(struct Book *book)
{
    printf("书名为：%s\n",book->name);
    printf("作者为：%s\n",book->author);
    printf("价格为：%f\n",book->price);
    printf("日期为：%d-%d-%d\n",book->date.year,book->date.month,book->date.day);
}//输出书籍信息
int main()
{
    struct Book pb;

    getbook(&pb);
    printbook(&pb);
    return 0;
}

struct Book *pb;