求大神指点，为什么这段代码运行后，才输入一个，就显示”请按任意键继续“，不能再输入了

问题描述：

#include<stdio.h>

struct Date
{
	int year;
	int month;
	int day;
};
struct Book
{
	char title[128];
	char author[40];
	char price;
	struct Date date;
	char publisher;
};
struct Book getinput(struct Book book)
{
	printf("书名：");
	scanf_s("%s", book.title);
	printf("作者：");
	scanf_s("%s", book.author);
	printf("价格：");
	scanf_s("%f", book.price);
	printf("出版日期：");
	scanf_s("%d-%d-%d", book.date.year,book.date.month,book.date.day);
	printf("出版社：");
	scanf_s("%s", book.publisher);
	return book;
}
void printBook(struct Book book)
{
	printf("书名：%s\n", book.title);
	printf("作者：%s\n", book.author);
	printf("价格：%f\n", book.price);
	printf("出版日期：%d-%d-%d\n", book.date.year,book.date.month,book.date.day);
	printf("出版社：%s\n", book.publisher);
}
int main()
{
	struct Book b1= {"xx","xx",0.0,0-0-0,"xx"},C;
	printf("请输入第一本书的信息\n");
	C=getinput(b1);
	printBook(b1);
	return 0;
}

答

scanf_s是要带长度的。

而且非数组类型,scanf_s是要带取地址的。

struct Book
{
	char title[128];
	char author[40];
	float price;
	struct Date date;
	char publisher;
};
struct Book getinput(struct Book book)
{
	printf("书名：");
	scanf_s("%s", book.title,20);
	printf("作者：");
	scanf_s("%s", book.author,20);
	printf("价格：");
	scanf_s("%f", &book.price);
	printf("出版日期：");
	scanf_s("%d-%d-%d", &book.date.year, &book.date.month, &book.date.day);
	printf("出版社：");
	scanf_s("%s", &book.publisher,20);
	return book;
}

答

scanf_s("%s", book.title);

改为

scanf_s("%s", book.title,128);

scanf_s函数读入字符串时，需要指定字符串最大长度。后面的scanf_s读入字符串时，全部要这么修改

#include<stdio.h>
struct Date
{
	int year;
	int month;
	int day;
};
struct Book
{
	char title[128];
	char author[40];
	char price;
	struct Date date;
	char publisher[50];
};
struct Book getinput(struct Book book)
{
	printf("书名：");
	scanf_s("%s", book.title,128);
	printf("作者：");
	scanf_s("%s", book.author,40);
	printf("价格：");
	scanf_s("%f", &book.price);
	printf("出版日期：");
	scanf_s("%d-%d-%d", &book.date.year,&book.date.month,&book.date.day);
	printf("出版社：");
	scanf_s("%s", book.publisher,50);
	return book;
}
void printBook(struct Book book)
{
	printf("书名：%s\n", book.title);
	printf("作者：%s\n", book.author);
	printf("价格：%f\n", book.price);
	printf("出版日期：%d-%d-%d\n", book.date.year,book.date.month,book.date.day);
	printf("出版社：%s\n", book.publisher);
}
int main()
{
	struct Book b1= {"xx","xx",0.0,0-0-0,"xx"},C;
	printf("请输入第一本书的信息\n");
	C=getinput(b1);
	printBook(b1);
	return 0;
}

答

scanf_s("%s", &book.title);

你的输入没有加取地址符号

答

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求大神指点，为什么这段代码运行后，才输入一个，就显示”请按任意键继续“，不能再输入了

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