请帮忙看看我这个程序的错误的问题
#include <stdio.h>#include <malloc.h>
#define NULL 0
#define LEN sizeof(struct student)
struct student
{
long num;
float score;
struct student *next;
};
int n;
struct student *creat(void)
{
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);
}
void print(struct student *head)
{
struct student *p;
printf("\nNow,these %d records are:\n");
p=head;
if(head!=NULL)
do
{
printf("%ld %5.1f\n",p->num,p->score);
p=p->next;
}while(p!=NULL);
}
struct student *del(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->num)
{
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");
end:
return(head);
}
struct student *insert(struct student *head,struct student *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)
{
p1=p2;
p1=p1->next;
}
if(p0->num<=p1->num)
{
if(p1==head)
head=p0;
else
p2->next=p0;
p0->next=p1;
}
else
{
p1->next=p0;
p0->next=NULL;
}
n=n+1;
return(head);
}
void main()
{
struct student stu,*head;
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);
}
--------------------Configuration: List - Win32 Debug--------------------
Compiling...
List.c
D:\Program Files\Microsoft Visual Studio\MyProjects\all\List.c(114) : error C2143: syntax error : missing ';' before 'type'
D:\Program Files\Microsoft Visual Studio\MyProjects\all\List.c(117) : error C2143: syntax error : missing ';' before 'type'
D:\Program Files\Microsoft Visual Studio\MyProjects\all\List.c(122) : error C2065: 'del_num' : undeclared identifier
D:\Program Files\Microsoft Visual Studio\MyProjects\all\List.c(126) : error C2065: 'stu' : undeclared identifier
D:\Program Files\Microsoft Visual Studio\MyProjects\all\List.c(126) : error C2224: left of '.num' must have struct/union type
D:\Program Files\Microsoft Visual Studio\MyProjects\all\List.c(126) : error C2224: left of '.score' must have struct/union type
D:\Program Files\Microsoft Visual Studio\MyProjects\all\List.c(127) : warning C4133: 'function' : incompatible types - from 'int *' to 'struct student *'
执行 cl.exe 时出错.
List.exe - 1 error(s), 0 warning(s)
请帮我指出，谢谢！
