Question

获取分段转储错误，在运行代码时，它会正确编译。当我运行程序时，它会要求我输入输入名称数组的值后，会导致分段错误。请帮我解决无错误的解决方案。

#include<stdio.h>

struct book
{
char name[20];
char author[20];
int price;
};

struct pages
{
int page;
struct book b1;
 } *p;

int main()
{
printf("\nEnter the book name , author , price, pages\n");
scanf("%s %s %d %d",p->b1.name,p->b1.author,&p->b1.price,&p->page);

printf("The entered values are\n");

printf("The name of book=%s\n",p->b1.name);
printf("The author of book=%s\n",p->b1.author);
printf("The price of book=%d\n",p->b1.price);
printf("The pages of book=%d\n",p->page);



return 0;


}

Answer 1

您尚未为p分配内存。添加代码以为p分配内存，并在从main返回之前释放该内存。使用

int main()
{
   p = malloc(sizeof(*p));

   printf("\nEnter the book name , author , price, pages\n");
   scanf("%s %s %d %d",p->b1.name,p->b1.author,&p->b1.price,&p->page);

   ...

   free(p);
   return 0;
}

在C“分段错误（核心转储）中获取错误”

1 个答案: