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藍森林 http://www.lslnet.com 2006年6月6日 10:18
 c語言中的關於鏈表的程序有問題幫忙
c語言的關於鏈表的程序有問題幫忙，老是編譯不成功
#include<stdio.h>;
#include<string.h>;
#include<math.h>;
#include<ctype.h>;
#define NULL 0
#define LEN sizeof(struct student)
struct student
{long num;
float score;
struct student *next;
};
int n;
struct student *creat()
{{struct student *head;
struct student *p1,*p2;
n=0;
p1=p2=(struct student *)malloc(LEN);
scanf("%ld,%f",&p1->;num,&p1->;score);
head=NULL;
while (p1->;num!=0)
{n=n+1;
if(n==1)head=p1;
else p2->;next=p1;
p2=p1;
p1=(struct student *)malloc(LEN);
scanf("%ld,%f",&p1->;num,&p1->;score);
}
p2->;next=NULL;
return(head);}
/* out */
void print(head)
struct student *head;
{struct student *p ;
printf("\n Now, these %d records are:\n",n);
p=head;
if(head!=NULL)
do
{printf("%d %5.1f\n",p->;num,p->;score);
p=p->;next;
}while (p!=NULL);
}
/* del */
struct student *del(head,num)
struct student *head;
long num;
{{struct student *p1,*p2;
if(head==NULL){printf("\nlist null!\n");goto end;}
p1=head;
while(num!=p1->;num&&p1->;next!=NULL)
{p2=p1;p1=p1->;next;}
if(num==p1->;next)
{if(p1==head)head=p1->;next;
else p2->;next=p1->;next;
printf("delete:%ld\n",num);
n=n-1;
}
else
printf("%ld not been found!\n",num);
end
return(head);
}}
/* insert */
struct student *insert (head,stud)
struct student *head,*stud;
{{struct student *p0,*p1,*p2;
p1=head;
p0=stud;
if(head==NULL)
{head=p0;p0->;next=NULL;}
else
{while ((p0->;num>;p1->;num)&&(p1->;next!=NULL))
{p2=p1;p1=p1->;next;}}
if(p0->;num<=p1->;num)
{if(head==p1)head=p0;
else{p2->;next=p0;
p0->;next=p1;}
else
{p1->;next=p0;p0->;next=NULL;}}
n=n+1;
return(head);
} }
main()
{struct student *head,stu;
long del-num;
printf("input records:\n");
head=creat();
print(head);
printf("\ninput the deleted number:");
scanf("%ld",&del_num);
head=del(head,del_num);
print(head);
printf("\ninput the inserted record:");
scanf(:"%ld,%f",&stu.num,&stu.score);
head=insert(head,&stu);
print(head);
} |
c語言中的關於鏈表的程序有問題幫忙
老大，不是不想幫你，你這code看著頭暈，排版就不要說了，這錯誤也太多了吧，你幹嘛要自己定義NULL，幹嘛要用老式的function定義，就算改了暫時compile過了，core dumped也不會少，呵呵。網上有很多的linked list的例子，你去找來參考參考吧。
先給你一個： http://www.baek.com.hk/baek/showroom/linklist.htm |
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