谁能帮我把动态链表改好，包括前面几个问题都采纳他

Question

#include "stdio.h"#include<malloc.h>#include<string.h>#include<ctype.h>#define LEN sizeof(struct student)struct student{ long num; float score; struct student*next;};struct student*creat(){ struct student *head;    struct student*p1,*p2; char ch; int a=0; head=NULL;            printf("是否输入新数据?(y/n)：");        while(toupper(ch=getchar())=='Y')    {      p1=(struct student * )malloc(LEN);      a++;      printf("\n请输入:");      scanf("%ld，%f",&p1->num,&p1->score);      printf("是否输入新数据？(y/n):");      scanf("%ld,%f",&p1->num,&p1->score);      getchar();      printf("是否输入新数据：?(y/n):");            if(a==1)      {       head=p1;       p2=p1;      }      else       {        p2->next=p1;        p2=p1;      }      p1->next=NULL;      }    return (head);}struct student * insert(struct student * head){    struct student *p0,*p1,*p2;    p0=(struct student * )malloc(LEN);    printf("\n输入所要插入节点的数据：");    scanf("%ld,%f",&p0->num,&p0->score);    p1=head;    if(head==NULL)    {      head=p0;      p0->next=NULL;    }    else    if(p1->num>p0->num)    {    p0->next=head;    head=p0;    }    else    {    while(p1!=NULL)    {    if(p1->num<p0->num)    {    p2=p1;    p1=p1->next;    }    else    {    p0->next=p1;    p2->next=p0;    break;    }    }    if(p1==NULL)    {    p0->next=NULL;    p2->next=p0;    }        }    return(head);   }/////void print(struct student *head){ struct student *p; p=head; while(p!=NULL) { printf("\n学生学号：%d，成绩：%4.1f",p->num,p->score); p=p->next; }}struct student *del(struct student *head){ struct student *p1,*p2; long num; printf("\n请输入所要删除的学号："); scanf("%ld",&num); if(head==NULL) { printf("\n链表为空！\n"); return(head); } if(head->num==num) { printf("删除学号：%ld，成绩%4.1f",head->num,head->score); return(head); } else {  p2=head;  p1=head->next;  while(p1!=NULL)  {   if(p1->num==num)   {    p2->next=p1->next;    break;    }    else    {     p2=p1;     p1=p1->next;     }    }    return(head);    }   }     void main( ){ struct student *stu;//用于指向结构体变量 stu=creat(); stu=insert(stu); print(stu); stu=del(stu); print(stu);}

Answer 1

c语言，抱歉了

Answer 2

看来是没人能帮你改好了

采纳我把，还能得个积分