请问一下，如何加截止编译？？？
比如就这道题，如何加截止编译#include"stdio.h"
#include"stdlib.h"
#include"string.h"
#define N 3
typedef struct z1
{
char no[11];
char name[15];
int score[N];
float sum;
float average;
int order;
struct z1 *next;
}STUDENT;
STUDENT *init();
STUDENT *create();
STUDENT *del(STUDENT *h);
void print(STUDENT *h);
void search1(STUDENT *h);
void search2(STUDENT *h);
STUDENT *insert(STUDENT *h);
void sort(STUDENT *h);
void save(STUDENT *h);
void tongji(STUDENT *h);
int menu_select();
STUDENT *load();
void inputs(char *prompt,char *s,int count);
STUDENT *load();
main()
{
int i;
STUDENT *head;
head=init();
for(;;)
{
switch(menu_select())
{
case 0:head=init();break;
case 1:head=create();break;
case 2:head=insert(head);break;
case 3:save(head);break;
case 4:print(head);break;
case 5:search1(head);break;
case 6:head=del(head);break;
case 7:sort(head);break;
case 8:tongji(head);break;
case 9:search2(head);break;
case 10:exit(0);
}
}
}
int menu_select()
{
char *menu[]={"************菜单************",
"1. 输入学生成绩",
"2. 插入学生成绩",
"3. 保存学生记录",
"4. 显示学生记录",
"5. 按学号查找学生信息",
"6. 删除指定学号的学生信息",
"7. 按某一门课对学生成绩排序",
"8. 统计某门课程的学生成绩",
"9. 按姓名查找学生信息",
"10. 退出系统"};
char s[3];
int c,i;
for(i=0;i<=11;i++)
printf(" %s\n",menu[i]);
do
{
printf("\n请选择1~10中的某一个选项\n");
scanf("%s",s);
c=atoi(s);
}while(c<0||c>10);
return c;
}
STUDENT *init()
{
return NULL;
}
STUDENT *create()
{
int i;int s;
STUDENT *h=NULL,*info;
for(;;)
{
info=(STUDENT *)malloc(sizeof(STUDENT));
if(!info)
{
printf("\n内存不足");
return NULL;
}
inputs("输入学号:",info->no,11);
if(info->no[0]=='@')break;
inputs("输入姓名:",info->name,15);
printf("开始输入%d门课的成绩\n",N);
s=0;
for(i=0;i<N;i++)
{
do{
printf("第%d门分数:",i+1);
scanf("%d",&info->score[i]);
if(info->score[i]>100||info->score[i]<0)
printf("输入成绩错误，请重新输入:\n");
}while(info->score[i]>100||info->score[i]<0);
s=s+info->score[i];
}
info->sum=s;
info->average=(float)s/N;
info->order=0;
info->next=h;
h=info;
}
return h;
}
void inputs(char *prompt,char *s,int count)
{
char p[255];
do
{
printf(prompt);
scanf("%s",p);
if(strlen(p)>count)
printf("\n太长了!\n");
}while(strlen(p)>count);
strcpy(s,p);
}
void print(STUDENT *h)
{
int i=0;
STUDENT *p;
p=h;
printf("\n\n\n***********************学生***********************\n");
printf("|序号|学号 | name | math | English | computer | 总分 |平均分 |名次 |\n");
printf("|---|-------|--------|----|----|----|------|------|---|\n");
while(p!=NULL)
{
i++;
printf("|%3d |%-10s|%-8s|%4d|%4d|%4d|%4.2f|%4.2f|%3d|\n",i,p->no,p->name,p->score[0],p->score[1],p->score[2],p->sum,p->average,p->order);
p=p->next;
}
printf("***********************end***********************\n");
}
STUDENT *del(STUDENT *h)
{
STUDENT *p,*q;
char s[11];
printf("请输入要删除的学生的学号\n");
scanf("%s",s);
q=p=h;
while(strcmp(p->no,s)&&p!=NULL)
{
q=p;
p=p->next;
}
if(p==NULL)
printf("\n链表中没有学号为%s的学生\n",s);
else
{
printf("\n\n\n***********************找到了***********************\n");
printf("|学号 | name | math | English | computer | 总分 | 平均分 | 名次 |\n");
printf("|----------|----------|----|----|----|------|------|---|\n");
printf("|%-10s|%-8s|%4d|%4d|%4d|%4.2f|%4.2f|%3d|\n",p->no,p->name,p->score[0],p->score[1],p->score[2],p->sum,p->average,p->order);
printf("***********************end***********************\n");
printf("请按任意键删除\n");
getchar();
if(p==h)
h=p->next;
else q->next=p->next;
free(p);
printf("\n已经删除学号为%s的学生\n",s);
printf("不要忘了保存数据\n");
}
return h;
}
void search1(STUDENT *h)
{
STUDENT *p;
char s[11];
printf("请输入你要查找的同学的学号\n");
scanf("%s",s);
p=h;
while(strcmp(p->no,s)&&p!=NULL)
p=p->next;
if(p==NULL)
printf("'n没有学号为%s的学生\n",s);
else
{
printf("\n\n\n***********************找到了***********************\n");
printf("|学号 | 姓名 | 数学 | 英语 | 计算机 | 总分 | 平均分 | 名次 |\n");
printf("|----------|-----------|----|----|----|------|------|---|\n");
printf("|%-10s|%-8s|%4d|%4d|%4d|%4.2f|%4.2f|%3d|\n",p->no,p->name,p->score[0],p->score[1],p->score[2],p->sum,p->average,p->order);
printf("***********************end***********************\n");
}
}
void search2(STUDENT *h)
{
STUDENT *p;
char s[11];
printf("请输入你要查找的同学的姓名\n");
scanf("%s",s);
p=h;
while(strcmp(p->name,s)&&p!=NULL)
p=p->next;
if(p==NULL)
printf("\n没有姓名为%s的学生\n",s);
else
{
printf("\n\n\n***********************找到了***********************\n");
printf("|学号 | name | math | English | computer | 总分 | 平均分 | 名次 |\n");
printf("|----------|-----------|----|----|----|------|------|---|\n");
printf("|%-10s|%-8s|%4d|%4d|%4d|%4.2f|%4.2f|%3d|\n",p->no,p->name,p->score[0],p->score[1],p->score[2],p->sum,p->average,p->order);
printf("***********************end***********************\n");
}
}
STUDENT *insert(STUDENT *h)
{
STUDENT *p,*q,*info;
char s[11];
int s1,i;
printf("请输入插入点的学生学号\n");
scanf("%s",s);
printf("\n请输入新的学生信息\n");
info=(STUDENT *)malloc(sizeof(STUDENT));
if(!info)
{
printf("\n内存不足!");
return NULL;
}
inputs("输入学号:",info->no,11);
inputs("输入姓名:",info->name,15);
printf("请输入%d门课的分数\n",N);
s1=0;
for(i=0;i<N;i++)
{
do{
printf("分数%d",i+1);
scanf("%d",&info->score[i]);
if(info->score[i]>100||info->score[i]<0)
printf("输入数据有误，请重新输入\n");
}while(info->score[i]>100||info->score[i]<0);
s1=s1+info->score[i];
}
info->sum=s1;
info->average=(float)s1/N;
info->order=0;
info->next=NULL;
p=h;
q=h;
while(strcmp(p->no,s)&&p!=NULL)
{q=p;p=p->next;}
if(p==NULL)
if(p==h)
h=info;
else q->next=info;
else
if(p==h)
{
info->next=p;
h=info;
}
else
{
info->next=p;
q->next=info;
}
printf("\n已经插入了%s这个学生\n",info->name);
printf("----不要忘了存盘啊--\n");
return(h);
}
void save(STUDENT *h)
{
FILE *fp;
STUDENT *p;
char outfile[10];
printf("请输入保存文件的文件名，例如 c:\\f1\\te.txt:\n");
scanf("%s",outfile);
if((fp=fopen(outfile,"wb"))==NULL)
{
printf("不能打开文件\n");
exit(1);
}
printf("\n正在保存......\n");
p=h;
while(p!=NULL)
{
fwrite(p,sizeof(STUDENT),1,fp);
p=p->next;
}
fclose(fp);
printf("------保存成功!!!------\n");
}
void sort(STUDENT *h)
{
int i=0,j;
STUDENT *p,*q,*t,*h1;
printf("请输入要按哪门课程的编号来排序:(1.数学 2.英语 3.计算机)\n");
scanf("%d",&j);
h1=h->next;
h->next=NULL;
while(h1!=NULL)
{
t=h1;
h1=h1->next;
p=h;
q=h;
while(t->score[j]<p->score[j]&&p!=NULL)
{
q=p;
p=p->next;
}
if(p==q)
{
t->next=p;
h=t;
}
else
{
t->next=p;
q->next=t;
}
}
p=h;
while(p!=NULL)
{
i++;
p->order=i;
p=p->next;
}
print(h);
printf("排序成功!!!\n");
}
void tongji(STUDENT *h)
{
STUDENT *p;
int a,b,i;
printf("请输入课程编号\n");
scanf("%d",&i);
printf("请输入分数段:\n");
scanf("%d,%d",&a,&b);
p=h;
while(p!=NULL)
{
printf("\n\n\n***********************找到了***********************\n");
if(p->score[i]>=a&&p->score[i]<=b)
{
printf("|学号 | 姓名 | 数学 | 英语 | 计算机 | 总分 | 平均分 | 名次 |\n");
printf("|--------|---------|----|----|----|------|------|---|\n");
printf("|%-10s|%-8s|%4d|%4d|%4d|%4.2f|%4.2f|%3d|\n",p->no,p->name,p->score[0],p->score[1],p->score[2],p->sum,p->average,p->order);
}
p=p->next;
}
printf("***********************end***********************\n");
}
