100行的c语言程序
① c语言例子 100行以上
#include "stdafx.h"
#include "iostream.h"
#define M 2000
#define N 8
void magic(int a[M][M], int);
int main(int argc, char* argv[])
{
static int a[M][M];
int d = 12;
int n = 8;
while(1){
while(1)
{
cout<<"请输入方阵的阶数, 阶数必须能被4整除：";
cin>>n;
if(n%4 != 0 )cout<<"笨蛋,看清楚题目!\n"<<endl;
else if(n>64)cout<<n<<"! 这么大， 想累死我啊， 不给算了!\n"<<endl;
else break;
}
//Init
for(int i=1; i<=n; i++)
{
for(int j=1; j<=n; j++)
{
a[i][j]=d;
d++;
// d++;
}
}
magic(a, n);
//Print dimension and sum for rows
for( i=1; i<=n; i++)
{
int sum=0;
for(int j=1; j<=n; j++)
{
cout<<a[i][j]<<"\t";
sum+=a[i][j];
}
cout<<" | "<<sum<<"\n\n";
}
//Print sum of columns
for(i = 1; i<=n; i++)cout<<"--\t";
cout<<"\n";
for(i=1; i<=n; i++)
{
int sum = 0;
for(int j = 1; j<=n; j++) sum += a[j][i];
cout<<sum<<"\t";
}
cout<<"\n\n";
char c;
cout<<"Continue?(y/n)";
cin>> c;
if(c=='n'|| c=='N')break;
}
return 0;
}
void exchg(int &a, int &b)
{
int t;
t = a;
a = b;
b = t;
}
void magic(int a[M][M], int n) // a:= 矩阵 n:= 实际阶数
{
int baseBlock_x=0;
int baseBlock_y=0;
int MaxBlock = n/4;
if(MaxBlock%2==0)
{
for(int bx = 0; bx<MaxBlock/2; bx++)
for(int by=0; by<MaxBlock; by++)
{
for(int c = 1; c <= 4; c++)
{
exchg(a[bx*4+c][by*4+c], a[n+1-bx*4-c][n+1-by*4-c]);
exchg(a[bx*4+c][by*4+5-c], a[n+1-bx*4-c][n+1-by*4-5+c]);
}
}
}
else
{
for(int bx = 0; bx<MaxBlock/2; bx++)
{
for(int by=0; by<MaxBlock; by++)
{
for(int c = 1; c <= 4; c++)
{
exchg(a[bx*4+c][by*4+c], a[n+1-bx*4-c][n+1-by*4-c]);
exchg(a[bx*4+c][by*4+5-c], a[n+1-bx*4-c][n+1-by*4-5+c]);
}
}
}
bx = MaxBlock/2;
for(int by=0; by<MaxBlock; by++)
{
for(int c = 1; c <= 2; c++)
{
exchg(a[bx*4+c][by*4+c], a[n+1-bx*4-c][n+1-by*4-c]);
exchg(a[bx*4+c][by*4+5-c], a[n+1-bx*4-c][n-by*4-4+c]);
}
}
}
}
② C语言100行的程序,要自己写的 谢谢. 所有分全给了.
这是我写的贪吃蛇，楼主看行不行？不行换一个
#include<stdio.h>
#include<conio.h>
#include<time.h>
#include<windows.h>
int length=1;//蛇的当前长度，初始值为1
int line[100][2];//蛇的走的路线
int head[2]={40,12};//蛇头
int food[2];//食物的位置
char direction;//蛇运动方向
int x_min=1;x_max=77; y_min=2; y_max=23;//设置蛇的运动区域
int tail_before[2]={40,12};//上一个状态的蛇尾
char direction_before='s';//上一个状态蛇的运动方向
int live_death=1;//死活状态，0死，1活
int eat_flag=0;//吃食物与否的状态。0没吃 1吃了
int max=0;
int delay;//移动延迟时间
void gotoxy(int x, int y)//x为列坐标,y为行坐标
{
COORD pos = {x,y};
HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);
SetConsoleCursorPosition(hOut, pos);
}
void hidden()//隐藏光标
{
HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);
CONSOLE_CURSOR_INFO cci;
GetConsoleCursorInfo(hOut,&cci);
cci.bVisible=0;//赋1为显示，赋0为隐藏
SetConsoleCursorInfo(hOut,&cci);
}
void update_score()
{
gotoxy(2,1);
printf("我的分数：%d",length);
gotoxy(42,1);
printf("最高记录：%d",max);
}
void create_window()
{
gotoxy(0,0);
printf("╔══════════════════╦═══════════════════╗");
printf("║ ║ ║");
printf("╠══════════════════╩═══════════════════╣");
printf("║ ║");
printf("║ ║");
printf("║ ║");
printf("║ ║");
printf("║ ║");
printf("║ ║");
printf("║ ║");
printf("║ ║");
printf("║ ║");
printf("║ ║");
printf("║ ║");
printf("║ ║");
printf("║ ║");
printf("║ ║");
printf("║ ║");
printf("║ ║");
printf("║ ║");
printf("║ ║");
printf("║ ║");
printf("║ ║");
printf("╚══════════════════════════════════════╝");
}
void update_line()
{
int i;
if(eat_flag==0)//吃了食物就不用记住上一个状态的蛇尾，否则会被消掉
{
tail_before[0]=line[0][0];//记住上一个状态的蛇尾
tail_before[1]=line[0][1];
for(i=0;i<length-1;i++)//更新蛇头以后部分
{
line[i][0]=line[i+1][0];
line[i][1]=line[i+1][1];
}
line[length-1][0]=head[0];//更新蛇头
line[length-1][1]=head[1];
}
}
void initial()
{
FILE *fp;
gotoxy(head[0],head[1]);
printf("蛇");
line[0][0]=head[0];//把蛇头装入路线
line[0][1]=head[1];
if((fp=fopen("highest","r"))==NULL)
{
fp=fopen("highest","w");
fprintf(fp,"%d",0);
max=0;
fclose(fp);
}//第一次使用时，初始化奖最高分为0
else
{
fp=fopen("highest","r");
fscanf(fp,"%d",&max);
}
update_score();
}
void createfood()
{
int flag,i;
srand((unsigned)time(NULL));
for(;;)
{
for(;;)
{
food[0]=rand()%(x_max+1);
if(food[0]%2==0 && food[0]>x_min)
break;
}//产生一个偶数横坐标
for(;;)
{
food[1]=rand()%(y_max);
if(food[1]>y_min)
break;
}
for(i=0,flag=0;i<length;i++)//判断产生的食物是否在蛇身上，在flag=1，否则为0
if(food[0]==line[i][0] && food[1]==line[i][1])
{ flag=1; break; }
if(flag==0)// 食物不在蛇身上 结束循环
break;
}
gotoxy(food[0],food[1]);
printf("蛇");
}
void show_snake()
{
gotoxy(head[0],head[1]);
printf("蛇");
if(eat_flag==0)//没吃食物时消去蛇尾
{
gotoxy(tail_before[0],tail_before[1]);
printf(" ");//消除蛇尾
}
else
eat_flag=0;//吃了食物就回到没吃状态
}
char different_direction(char dir)
{
switch(dir)
{
case 'a': return 'd';
case 'd': return 'a';
case 'w': return 's';
case 's': return 'w';
}
}
void get_direction()
{
direction_before=direction;//记住蛇上一个状态的运动方向
while(kbhit()!=0) //调试
direction=getch();
if( direction_before == different_direction(direction) || (direction!='a' && direction!='s' && direction!='d' && direction!='w') ) //新方向和原方向相反，或获得的方向不是wasd时，保持原方向
direction=direction_before;
switch(direction)
{
case 'a': head[0]-=2; break;
case 'd': head[0]+=2; break;
case 'w': head[1]--; break;
case 's': head[1]++; break;
}
}
void live_state()//判断蛇的生存状态
{
FILE *fp;
int i,flag;
for(i=0,flag=0;i<length-1;i++)//判断是否自己咬到自己
if( head[0]==line[i][0] && head[1]==line[i][1])
{
flag=1;
break;
}
if(head[0]<=x_min || head[0]>=x_max || head[1]<=y_min || head[1]>=y_max || flag==1)
{
system("cls");
create_window();
update_score();
gotoxy(35,12);
printf("游戏结束！\n");
Sleep(500);
live_death=0;
fp=fopen("highest","w");
fprintf(fp,"%d",max);//保存最高分
}
}
void eat()
{
if(head[0]==food[0]&&head[1]==food[1])
{
length++;
line[length-1][0]=head[0];//更新蛇头
line[length-1][1]=head[1];
eat_flag=1;
createfood();
if(length>max)
max=length;
update_score();
if(delay>100)
delay-=30;//加速
}
}
main()
{
int x=0,y=0;
int i;
hidden();//隐藏光标
create_window();
initial();
createfood();
for(direction='s',delay=600;;)
{
get_direction();
eat();
update_line();
live_state();//判断生死状态
if(live_death==1)
{
show_snake();
}
else
break;
Sleep(delay);
}
}
这是在VC6.0环境下运行的，如果你用的TC，我可以帮你改成TC环境下运行的
③ 求100行左右的代码（C语言，c++，数据结构编写的均可）
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define N 10
struct library {
int num;
char book_name[30];
char writer[30];
char sort_num[3];
char pub_company[30];
char pub_time[30];
char prise[30];
};
typedef struct library LIB; /*结构体的定义用于存放书籍及借书的信息*/
LIB lib[N];
FILE *fp; int all=0;
int menu(void);
void input(void);
void output(void);
void save(void);
void del(void);
void search(void);
void xiugai(void);
main()
{
for(;;)
{
switch(menu()) {
case 1:input();break;
case 2:output();break;
case 3:save();break;
case 4:search();break;
case 5:xiugai();break;
case 6:del();break;
case 7:sort();break;
case 0:exit(1);break;
} /*SWITCH定义函数输出*/
}
}
int menu(void)
{
char m[3];
int n; printf(" *********************WELCOME**********************\n\n\n\n\n");
printf("\t\t\t-----图书信息管理系统----\n");
printf("\t\t1:输入\n");
printf("\t\t2:输出\n");
printf("\t\t3:保存\n");
printf("\t\t4:查找\n");
printf("\t\t5:修改\n");
printf("\t\t6:删除\n");
printf("\t\t7:统计\n");
printf("\t\t0:退出\n");
printf("\t\tplease choose a operation(0-6):\n");
scanf("%s",m);
n=atoi(m);
return(n);
} /*主要界面*/
void input(void)
{
int i;
char m[3];
for(i=all;i<N;i++)
{
all++;
printf("请输入信息:\n");
printf("\t\t号码:\n");
scanf("%d",&lib[i].num);
printf("\t\t书名:\n");
scanf("%s",lib[i].book_name);
printf("\t\t作者:\n");
scanf("%s",lib[i].writer);
printf("\t\tsort_num:\n");
scanf("%s",lib[i].sort_num);
printf("\t\t出版商:\n");
scanf("%s",lib[i].pub_company);
printf("\t\t出版时间:\n");
scanf("%s",lib[i].pub_time);
printf("\t\t价格:\n");
scanf("%s",lib[i].prise);
a: printf("\t\tyes/哦了?\n");
printf("\t\t1:yes\n");
printf("\t\t2:no\n");
scanf("%s",m);
if(atoi(m)==1)
continue;
else if(atoi(m)==2)
return;
else
{
printf("\t\t错误!\n");
goto a;
} /* 输入条件查找*/
}
}
void output(void)
{
int i;
for(i=0;i<all;i++)
{
printf("\t\t%d\n",lib[i].num);
printf("%s\t\t%s\t\t%s\n",lib[i].book_name,lib[i].writer,lib[i].sort_num);
printf("%s\t\t%s\t\t%s\n",lib[i].pub_company,lib[i].pub_time,lib[i].prise);
}
} /*输出书名作者出版时间价格等*/
void save(void)
{
int i;
if((fp=fopen("file.c","wb"))==NULL)
{
printf("can not open the file");
exit(1);
}
for(i=0;i<all;i++)
{
if(fwrite(&lib[i],sizeof(LIB),1,fp)!=1)
{
printf("can not write!");
exit(1);
}
} /*条件不符合时拒绝存储*/
fclose(fp);
}
void search(void)
{
int i,flag;
char m[3];
char name[30];
printf("\t\t请选择您的存储方式:\n");
printf("\t\t1:按书名!\n");
printf("\t\t2:按作者!\n");
scanf("%s",m);
i=atoi(m);
switch(i)
{
case 1:{
printf("\t\t请输入书名:\n");
scanf("%s",name);
flag=0;
for(i=0;i<N;i++)
{
if(strcmp(name,lib[i].book_name)==0)
{
printf("\t\t%d\n",lib[i].num);
printf("%s\t\t%s\t\t%s\n",lib[i].book_name,lib[i].writer,lib[i].sort_num);
printf("%s\t\t%s\t\t%s\n",lib[i].pub_company,lib[i].pub_time,lib[i].prise);
flag=1;break;
}
}
if(flag==0)
printf("\t\t没有这本书!\n");
}
case 2:{
printf("\t\t请输入作者:\n");
scanf("%s",name);
flag=0;
for(i=0;i<N;i++)
{
if(strcmp(name,lib[i].writer)==0)
{
printf("\t\t%d\n",lib[i].num);
printf("%s\t\t%s\t\t%s\n",lib[i].book_name,lib[i].writer,lib[i].sort_num);
printf("%s\t\t%s\t\t%s\n",lib[i].pub_company,lib[i].pub_time,lib[i].prise);
flag=1;break;
}
}
if(flag==0)
printf("\t\t没有这个作者!\n");
}
} /*查找图书按书名或作者并输出*/
}
void xiugai(void)
{
int i,flag;
char name[30],n[3];
printf("\t\t请输入要修改的书名 :\n");
scanf("%s",name); /*修改书名*/
flag=0;
for(i=0;i<N;i++)
{
if(strcmp(name,lib[i].book_name)==0)
{
printf("\t\t%d\n",lib[i].num);
printf("%s\t\t%s\t\t%s\n",lib[i].book_name,lib[i].writer,lib[i].sort_num);
printf("%s\t\t%s\t\t%s\n",lib[i].pub_company,lib[i].pub_time,lib[i].prise);
printf("\t\tplease input xiugai's the informations:\n");
printf("\t\tnum:\n");
scanf("%d",&lib[i].num);
printf("\t\tbook_name:\n");
scanf("%s",lib[i].book_name);
printf("\t\twriter:\n");
scanf("%s",lib[i].writer);
printf("\t\tsort_num:\n");
scanf("%s",lib[i].sort_num);
printf("\t\tpub_company:\n");
scanf("%s",lib[i].pub_company);
printf("\t\tpub_time:\n");
scanf("%s",lib[i].pub_time);
printf("\t\tprise:\n");
scanf("%s",lib[i].prise);
flag=1;break;
}
} /*增加图书*/
if(flag==0)
printf("\t\t没有找到啊!\n");
}
void del(void)
{
int i,j,flag;
char name[30];
printf("\t\t请输入要删除的书名:\n");
scanf("%s",name);
flag=0;
for(i=0;i<N;i++)
{
if(strcmp(name,lib[i].book_name)==0)
{
printf("\t\t%d\n",lib[i].num);
printf("%s\t\t%s\t\t%s\n",lib[i].book_name,lib[i].writer,lib[i].sort_num);
printf("%s\t\t%s\t\t%s\n",lib[i].pub_company,lib[i].pub_time,lib[i].prise);
for(j=N;j>i;j--)
{
lib[j-1].num=lib[j].num;
strcpy(lib[j-1].book_name,lib[j].book_name);
strcpy(lib[j-1].writer,lib[j].writer);
strcpy(lib[j-1].sort_num,lib[j].sort_num);
strcpy(lib[j-1].pub_company,lib[j].pub_company);
strcpy(lib[j-1].pub_time,lib[j].pub_time);
strcpy(lib[j-1].prise,lib[j].prise);
flag=1;
printf("\t\t已经删除!\n");
break;
}
}
}
if(flag==0)
printf("\t\t没有这本书!\n");
} /*删除图书*/
④ C语言程序100行
//学生成绩管理系统C代码
/*头文件*/
#include
#include
#include /*其它说明*/
#include /*字符串函数*/
#include /*内存操作函数*/
#include /*字符操作函数*/
#include /*动态地址分配函数*/
#define LEN sizeof(STUDENT)
typedef struct stu /*定义结构体数组用于缓存数据*/
{
char num[6];
char name[5];
int score[3];
int sum;
float average;
int order;
struct stu *next;
}STUDENT;
/*函数原型*/
STUDENT *init(); /*初始化函数*/
int menu_select(); /*菜单函数*/
STUDENT *create(); /*创建链表*/
void print(STUDENT *head); /* 显示全部记录*/
void search(STUDENT *head); /*查找记录*/
STUDENT *delete(STUDENT *head); /*删除记录*/
STUDENT *sort(STUDENT *head); /*排序*/
STUDENT *insert(STUDENT *head,STUDENT *newnode); /*插入记录*/
void save(STUDENT *head); /*保存文件*/
STUDENT *load(); /*读文件*/
/*主函数界面*/
main()
{
STUDENT *head,newnode;
head=init(); /*链表初始化,使head的值为NULL*/
for(;;) /*循环无限次*/
{
switch(menu_select())
{
case 1:head=create();break;
case 2:print(head);break;
case 3:search(head);break;
case 4:head=delete(head);break;
case 5:head=sort(head);break;
case 6:head=insert(head,&newnode);break; /*&newnode表示返回地址*/
case 7:save(head);break;
case 8:head=load(); break;
case 9:exit(0); /*如菜单返回值为9则程序结束*/
}
}
}
/*初始化函数*/
STUDENT *init()
{
return NULL; /*返回空指针*/
}
/*菜单选择函数*/
menu_select()
{
int n;
struct date d; /*定义时间结构体*/
getdate(&d); /*读取系统日期并把它放到结构体d中*/
printf("press any key to enter the menu......"); /*按任一键进入主菜单*/
getch(); /*从键盘读取一个字符,但不显示于屏幕*/
clrscr(); /*清屏*/
printf("********************************************************************************\n");
printf("\t\t Welcome to\n");
printf("\n\t\t The student score manage system\n");
printf("*************************************MENU***************************************\n");
printf("\t\t\t1. Enter the record\n"); /*输入学生成绩记录*/
printf("\t\t\t2. Print the record\n"); /*显示*/
printf("\t\t\t3. Search record on name\n"); /*寻找*/
printf("\t\t\t4. Delete a record\n"); /*删除*/
printf("\t\t\t5. Sort to make new a file\n"); /*排序*/
printf("\t\t\t6. Insert record to list\n"); /*插入*/
printf("\t\t\t7. Save the file\n"); /*保存*/
printf("\t\t\t8. Load the file\n"); /*读取*/
printf("\t\t\t9. Quit\n"); /*退出*/
printf("\n\t\t Made by Hu Haihong.\n");
printf("********************************************************************************\n");
printf("\t\t\t\t%d\\%d\\%d\n",d.da_year,d.da_mon,d.da_day); /*显示当前系统日期*/
do{
printf("\n\t\t\tEnter your choice(1~9):");
scanf("%d",&n);
}while(n9); /*如果选择项不在1~9之间则重输*/
return(n); /*返回选择项，主函数根据该数调用相应的函数*/
}
/*输入函数*/
STUDENT *create()
{
int i,s;
STUDENT *head=NULL,*p; /* 定义函数.此函数带回一个指向链表头的指针*/
clrscr();
for(;;)
{p=(STUDENT *)malloc(LEN); /*开辟一个新的单元*/
if(!p) /*如果指针p为空*/
{printf("\nOut of memory."); /*输出内存溢出*/
return (head); /*返回头指针,下同*/
}
printf("Enter the num(0:list end):");
scanf("%s",p->num);
if(p->num[0]=='0') break; /*如果学号首字符为0则结束输入*/
printf("Enter the name:");
scanf("%s",p->name);
printf("Please enter the %d scores\n",3); /*提示开始输入成绩*/
s=0; /*计算每个学生的总分，初值为0*/
for(i=0;i<3;i++) /*3门课程循环3次*/
{
do{
printf("score%d:",i+1);
scanf("%d",&p->score[i]);
if(p->score[i]score[i]>100) /*确保成绩在0~100之间*/
printf("Data error,please enter again.\n");
}while(p->score[i]score[i]>100);
s=s+p->score[i]; /*累加各门成绩*/
}
p->sum=s; /*将总分保存*/
p->average=(float)s/3; /*先用强制类型转换将s转换成float型,再求平均值*/
p->order=0; /*未排序前此值为0*/
p->next=head; /*将头结点做为新输入结点的后继结点*/
head=p; /*新输入结点为新的头结点*/
}
return(head);
}
/* 显示全部记录函数*/
void print(STUDENT *head)
{
int i=0; /* 统计记录条数*/
STUDENT *p; /*移动指针*/
clrscr();
p=head; /*初值为头指针*/
printf("\n************************************STUDENT************************************\n");
printf("-------------------------------------------------------------------------------\n");
printf("| Rec | Num | Name | Sc1 | Sc2 | Sc3 | Sum | Ave | Order |\n");
printf("-------------------------------------------------------------------------------\n");
while(p!=NULL)
{
i++;
printf("| %3d | %4s | %-4s | %3d | %3d | %3d | %3d | %4.2f | %-5d|\n",
i, p->num,p->name,p->score[0],p->score[1],p->score[2],p->sum,p->average,p->order);
p=p->next;
}
printf("-------------------------------------------------------------------------------\n");
printf("**************************************END**************************************\n");
}
/*查找记录函数*/
void search(STUDENT *head)
{
STUDENT *p; /* 移动指针*/
char s[5]; /*存放姓名用的字符数组*/
clrscr();
printf("Please enter name for searching.\n");
scanf("%s",s);
p=head; /*将头指针赋给p*/
while(strcmp(p->name,s) && p != NULL) /*当记录的姓名不是要找的，或指针不为空时*/
p=p->next; /*移动指针，指向下一结点*/
if(p!=NULL) /*如果指针不为空*/
{printf("\n*************************************FOUND************************************\n");
printf("-------------------------------------------------------------------------------\n");
printf("| Num | Name | sc1 | sc2 | sc3 | Sum | Ave | Order |\n");
printf("-------------------------------------------------------------------------------\n");
printf("| %4s | %4s | %3d | %3d | %3d | %3d | %4.2f | %-5d|\n",
p->num,p->name,p->score[0],p->score[1],p->score[2],p->sum,p->average,p->order);
printf("-------------------------------------------------------------------------------\n");
printf("***************************************END**************************************\n");
}
else
printf("\nThere is no num %s student on the list.\n",s); /*显示没有该学生*/
}
/*删除记录函数*/
STUDENT *delete(STUDENT *head)
{int n;
STUDENT *p1,*p2; /*p1为查找到要删除的结点指针，p2为其前驱指针*/
char c,s[6]; /*s[6]用来存放学号,c用来输入字母*/
clrscr();
printf("Please enter the deleted num: ");
scanf("%s",s);
p1=p2=head; /*给p1和p2赋初值头指针*/
while(strcmp(p1->num,s) && p1 != NULL) /*当记录的学号不是要找的，或指针不为空时*/
{p2=p1; /*将p1指针值赋给p2作为p1的前驱指针*/
p1=p1->next; /*将p1指针指向下一条记录*/
}
if(strcmp(p1->num,s)==0) /*学号找到了*/
{printf("**************************************FOUND************************************\n");
printf("-------------------------------------------------------------------------------\n");
printf("| Num | Name | sc1 | sc2 | sc3 | Sum | Ave | Order |\n");
printf("-------------------------------------------------------------------------------\n");
printf("| %4s | %4s | %3d | %3d | %3d | %3d | %4.2f | %-5d|\n",
p1->num,p1->name,p1->score[0],p1->score[1],p1->score[2],p1->sum,p1->average,p1->order);
printf("-------------------------------------------------------------------------------\n");
printf("***************************************END**************************************\n");
printf("Are you sure to delete the student Y/N ?"); /*提示是否要删除,输入Y删除,N则退出*/
for(;;)
{scanf("%c",&c);
if(c=='n'||c=='N') break; /*如果不删除,则跳出本循环*/
if(c=='y'||c=='Y')
{
if(p1==head) /*若p1==head，说明被删结点是首结点*/
head=p1->next; /*把第二个结点地址赋予head*/
else
p2->next=p1->next; /*否则将一下结点地址赋给前一结点地址*/
n=n-1;
printf("\nNum %s student have been deleted.\n",s);
printf("Don't forget to save.\n");break; /*删除后就跳出循环*/
}
}
}
else
printf("\nThere is no num %s student on the list.\n",s); /*找不到该结点*/
return(head);
}
/*排序函数*/
STUDENT *sort(STUDENT *head)
{int i=0; /*保存名次*/
STUDENT *p1,*p2,*t,*temp; /*定义临时指针*/
temp=head->next; /*将原表的头指针所指的下一个结点作头指针*/
head->next=NULL; /*第一个结点为新表的头结点*/
while(temp!=NULL) /*当原表不为空时，进行排序*/
{
t=temp; /*取原表的头结点*/
temp=temp->next; /*原表头结点指针后移*/
p1=head; /*设定移动指针p1，从头指针开始*/
p2=head; /*设定移动指针p2做为p1的前驱，初值为头指针*/
while(t->averageaverage&&p1!=NULL) /*作成绩平均分比较*/
{
p2=p1; /*待排序点值小，则新表指针后移*/
p1=p1->next;
}
if(p1==p2) /*p1==p2，说明待排序点值大，应排在首位*/
{
t->next=p1; /*待排序点的后继为p*/
head=t; /*新头结点为待排序点*/
}
else /*待排序点应插入在中间某个位置p2和p1之间，如p为空则是尾部*/
{
t->next=p1; /*t的后继是p1*/
p2->next=t; /*p2的后继是t*/
}
}
p1=head; /*已排好序的头指针赋给p1，准备填写名次*/
while(p1!=NULL) /*当p1不为空时，进行下列操作*/
{
i++; /*结点序号*/
p1->order=i; /*将结点序号赋值给名次*/
p1=p1->next; /*指针后移*/
}
printf("Sorting is sucessful.\n"); /*排序成功*/
return (head);
}
/*插入记录函数*/
STUDENT *insert(STUDENT *head,STUDENT *newnode)
{STUDENT *p0,*p1,*p2;
int n,sum1,i;
p1=head; /*使p1指向第一个结点*/
p0=newnode; /*p0指向要插入的结点*/
printf("\nPlease enter a newnode record.\n"); /*提示输入记录信息*/
printf("Enter the num:");
scanf("%s",newnode->num);
printf("Enter the name:");
scanf("%s",newnode->name);
printf("Please enter the %d scores.\n",3);
sum1=0; /*保存新记录的总分，初值为0*/
for(i=0;i<3;i++)
{
do{
printf("score%d:",i+1);
scanf("%d",&newnode->score[i]);
if(newnode->score[i]>100||newnode->score[i]<0)
printf("Data error,please enter again.\n");
}while(newnode->score[i]>100||newnode->score[i]<0);
sum1=sum1+newnode->score[i]; /*累加各门成绩*/
}
newnode->sum=sum1; /*将总分存入新记录中*/
newnode->average=(float)sum1/3;
newnode->order=0;
if(head==NULL) /*原来的链表是空表*/
{head=p0;p0->next=NULL;} /*使p0指向的结点作为头结点*/
else
{while((p0->averageaverage)&&(p1->next!=NULL))
{p2=p1; /*使p2指向刚才p1指向的结点*/
p1=p1->next; /*p1后移一个结点*/
}
if(p0->average>=p1->average)
{if(head==p1)head=p0; /*插到原来第一个结点之前*/
else p2->next=p0; /*插到p2指向的结点之后*/
p0->next=p1;}
else
{p1->next=p0;p0->next=NULL;} /*插到最后的结点之后*/
}
n=n+1; /*结点数加1*/
head=sort(head); /*调用排序的函数,将学生成绩重新排序*/
printf("\nStudent %s have been inserted.\n",newnode->name);
printf("Don't forget to save the newnode file.\n");
return(head);
}
/*保存数据到文件函数*/
void save(STUDENT *head)
{FILE *fp; /*定义指向文件的指针*/
STUDENT *p; /* 定义移动指针*/
char outfile[10];
printf("Enter outfile name,for example c:\\score\n");
scanf("%s",outfile);
if((fp=fopen(outfile,"wb"))==NULL) /*为输出打开一个二进制文件,为只写方式*/
{
printf("Cannot open the file\n");
return; /*若打不开则返回菜单*/
}
printf("\nSaving the file......\n");
p=head; /*移动指针从头指针开始*/
while(p!=NULL) /*如p不为空*/
{
fwrite(p,LEN,1,fp); /*写入一条记录*/
p=p->next; /*指针后移*/
}
fclose(fp); /*关闭文件*/
printf("Save the file successfully!\n");
}
/* 从文件读数据函数*/
STUDENT *load()
{STUDENT *p1,*p2,*head=NULL; /*定义记录指针变量*/
FILE *fp; /* 定义指向文件的指针*/
char infile[10];
printf("Enter infile name,for example c:\\score\n");
scanf("%s",infile);
if((fp=fopen(infile,"rb"))==NULL) /*打开一个二进制文件，为只读方式*/
{
printf("Can not open the file.\n");
return(head);
}
printf("\nLoading the file!\n");
p1=(STUDENT *)malloc(LEN); /*开辟一个新单元*/
if(!p1)
{
printf("Out of memory!\n");
return(head);
}
head=p1; /*申请到空间，将其作为头指针*/
while(!feof(fp)) /*循环读数据直到文件尾结束*/
{
if(fread(p1,LEN,1,fp)!=1) break; /*如果没读到数据，跳出循环*/
p1->next=(STUDENT *)malloc(LEN); /*为下一个结点开辟空间*/
if(!p1->next)
{
printf("Out of memory!\n");
return (head);
}
p2=p1; /*使p2指向刚才p1指向的结点*/
p1=p1->next; /*指针后移，新读入数据链到当前表尾*/
}
p2->next=NULL; /*最后一个结点的后继指针为空*/
fclose(fp);
printf("You have success to read data from the file!\n");
return (head);
}
满意请采纳。