单链表1相关，创建失败
照着小甲鱼的视频打的，但是出了些问题。#include <stdio.h>
#include <stdlib.h>
struct Book
{
char title;
struct Book *next;
};
void getInput(struct Book *book)
{
printf("书名：");
scanf("%s", book->title);
}
void addbook(struct Book **library)
{
struct Book *book, *temp;
book = (struct Book *)malloc(sizeof(struct Book));
if (book == NULL)
{
printf("内存分配失败\n");
exit(1);
}
getInput(book);
if (*library != NULL)
{
temp = *library;
*library = book;
book->next = temp;
}else
{
*library = book;
book->next = NULL;
}
}
void printLibrary(struct Book *Book)
{
struct Book *book;
int count = 1;
book = library;
while (book != NULL)
{
printf("book%d\n", count);
printf("书名:%s", book->title);
book = book->next;
count++;
}
}
void releaseLibrary(struct Book *library)
{
struct Book *temp;
while (*library != NULL)
{
temp = *library;
*library = (*library)->next;
free(temp);
}
}
int main(void)
{
struct Book *library = NULL;
addbook(&library);
printLibrary(library);
releaseLibrary(library);
return 0;
}
然后报错了
cpjiayu.cpp: In function 'void printLibrary(Book*)':
cpjiayu.cpp:46:12: error: 'library' was not declared in this scope
46 | book = library;
| ^~~~~~~
cpjiayu.cpp: In function 'void releaseLibrary(Book*)':
cpjiayu.cpp:61:21: error: no match for 'operator!=' (operand types are 'Book' and 'long long int')
61 | while (*library != NULL)
| ~~~~~~~~ ^~
| |
| Book
cpjiayu.cpp:63:16: error: cannot convert 'Book' to 'Book*' in assignment
63 | temp = *library;
| ^~~~~~~~
| |
| Book
cpjiayu.cpp:64:30: error: base operand of '->' has non-pointer type 'Book'
64 | *library = (*library)->next;
| ^~
视频里小甲鱼直接就book = library 也没什么问题呀，为什么我自己就要引用点啥呢？
后面两个错误就完全不知道因为什么了。也没弄明白自己哪没学明白。求大佬们指点一波
困扰好久了{:10_266:}
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