本文目录一览:
- 1、c语言100行简单一点的代码
- 2、求一个简单100行c语言程序,一定要原创
- 3、C语言100行的程序,要自己写的 谢谢. 所有分全给了.
- 4、c语言例子 100行以上
- 5、跪求100行左右的c语言简单代码,大一水平就行,什么类型都可以。
- 6、求C语言编程实例100行以上,要有文字大概解释一下
c语言100行简单一点的代码
登录幼儿园200个小朋友的数据:姓名、性别、年龄、身高、体重、出生日期,分别按年龄排序后输出。
#includestdio.h
#define N 200
struct child
{
char name[10];
char sex[3];
int age;
int height;
float weight;
struct {
int year;
int month;
int day;
}bdate;
}ch[N];
void input()
{
int i;
for(i=0;iN;i++)
{
printf("\n请输入第%d名小朋友信息:\n",i+1);
printf("姓名:");
scanf("%s",ch[i].name);
printf("性别:");
scanf("%s",ch[i].sex);
printf("年龄:");
scanf("%d",ch[i].age);
printf("身高:");
scanf("%d",ch[i].height);
printf("体重:");
scanf("%f",ch[i].weight);
printf("出生日期[YYYY-MM-DD]:");
scanf("%d-%d-%d",ch[i].bdate.year,ch[i].bdate.month,ch[i].bdate.day);
}
}
void sort()
{
struct child ct;
int i,j;
for(i=0;iN-1;i++)
for(j=0;jN-i-1;j++)
if(ch[j].heightch[j+1].height)
{
ct=ch[j];
ch[j]=ch[j+1];
ch[j+1]=ct;
}
}
void output()
{
int i;
printf("\n\t幼儿园小朋友一览(依身高排序)\n");
printf("===================================================\n");
printf(" 姓名 性别 年龄 身高 体重 出生日期 \n");
printf("===================================================\n");
for(i=0;iN;i++)
printf(" %-8s %-2s %2d %d %3.1f %d.%d.%d\n",ch[i].name,ch[i].sex,ch[i].age,ch[i].height,ch[i].weight,ch[i].bdate.year,ch[i].bdate.month,ch[i].bdate.day);
}
void main()
{
input();
sort();
output();
}
求一个简单100行c语言程序,一定要原创
答案voidmain(){intsele=1,t;floatx;system("cls");printf("欢迎使用简易菜单!本菜单在VC++平台编译通过\n");printf("有何建议请联系本人!\n");printf("成绩管理菜单\n");printf("\n");printf("1.输入成绩2.计算总分3.求平均值4.输出总分与平均5.清理屏幕6.高低排列7.上平均分人数0.退出8.全部情况:总分平均分第一名及格人数");scanf("%d",sele);puts("");if(sele=0sele1.输入成绩2.计算总分3.求平均值4.输出总分与平均5.清理屏幕6.高低排列7.上平均分人数0.退出8.全部情况:总分平均分第一名及格人数\n");break;case6:gaodi(a);break;case7:super(a);break;case8:full(t,x);break;}elseprintf("你的输入有误,请重新:");}
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
#includestdio.h
#includeconio.h
#includetime.h
#includewindows.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;ilength-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;ilength;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;ilength-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(lengthmax)
max=length;
update_score();
if(delay100)
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
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:";
cinn;
if(n%4 != 0 )cout"笨蛋,看清楚题目!\n"endl;
else if(n64)coutn"! 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++)
{
couta[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];
coutsum"\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; bxMaxBlock/2; bx++)
for(int by=0; byMaxBlock; 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; bxMaxBlock/2; bx++)
{
for(int by=0; byMaxBlock; 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; byMaxBlock; 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]);
}
}
}
}
跪求100行左右的c语言简单代码,大一水平就行,什么类型都可以。
//学生成绩管理系统C代码
/*头文件*/
#include stdio.h
#includedos.h
#includestdlib.h /*其它说明*/
#includestring.h /*字符串函数*/
#includemem.h /*内存操作函数*/
#includectype.h /*字符操作函数*/
#includealloc.h /*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(n1||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;i3;i++) /*3门课程循环3次*/
{
do{
printf("score%d:",i+1);
scanf("%d",p-score[i]);
if(p-score[i]0 || p-score[i]100) /*确保成绩在0~100之间*/
printf("Data error,please enter again.\n");
}while(p-score[i]0 || p-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-averagep1-averagep1!=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;i3;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-averagep1-average)(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);
}
求C语言编程实例100行以上,要有文字大概解释一下
#include stdio.h
main(int a,char **date)
{
int year=0,month=0,day=0,week;
int d,i,dm,dy,m2;
char WEEK[9];
if (a==1)
{
printf ("\n ERROR! you forgot to enter the date you want to view\n");
exit (0);
}
i=0; d=-1;
while (date[1][i])/*遍历传入的参数日期,计算出year,month,day*/
{
if ((date[1][i]=='/'||date[1][i]=='.')d==-1) { d=0; i++; continue; }
if ((date[1][i]=='/'||date[1][i]=='.')d==0) { d=1; i++; continue; }
if (d==-1) year=year*10+(date[1][i]-'0');
if (d==0) month=month*10+(date[1][i]-'0');
if (d==1) day=day*10+(date[1][i]-'0');
i++;
}
if (month1||month12)/*若月份传入错误数字*/
{
printf ("\n ERROR! the entered MONTH is invalid\n");
exit (0);
}
if (year==2000)
{
dy=0; /*年引起的星期差为0个*/
m2=1; /*2月引起的星期差为1个*/
goto la_100;
}
if (year2000)
d=(year-1-2000)/4-(year-1-2000)/100+(year-1-2000)/400+1;
else
d=(year-2000)/4-(year-2000)/100+(year-2000)/400;
dy=(year-2000)+d; /*** 该年 1月1号 到2000年1月1号的 " 星期差 " ***/
if((year%4==0year%100!=0)||(year%100==0year%400==0))
m2=1;
else
m2=0; /*** 该年是否润 ***/
la_100: /**** la_100 ****/
/*** 该月以前的月所引起的 " 星期差 " ***/
switch (month)
{
case 1: dm=0; month=31; break; /*** month 在此存放该月天数 ***/
case 2: dm=3; month=d==1? 29:28; break;
case 3: dm=3+m2; month=31; break;
case 4: dm=6+m2; month=30; break;
case 5: dm=1+m2; month=31; break;
case 6: dm=4+m2; month=30; break;
case 7: dm=6+m2; month=31; break;
case 8: dm=2+m2; month=31; break;
case 9: dm=5+m2; month=30; break;
case 10: dm=m2; month=31; break;
case 11: dm=3+m2; month=30; break;
case 12: dm=5+m2; month=31; break;
}
if (day0||daymonth)
{
printf ("\n ERROR! the entered DAY is invalid\n");
exit (0);
}
week=(dy+dm+day-1+6)%7;
if(week0)
week+=7;
if (day0) /*** 判定查看类型 ***/
{
switch (week)
{
case 0: strcpy (WEEK,"SUNDAY"); break;
case 1: strcpy (WEEK,"MONDAY"); break;
case 2: strcpy (WEEK,"TUESDAY"); break;
case 3: strcpy (WEEK,"WEDNESDAY"); break;
case 4: strcpy (WEEK,"THURSDAY"); break;
case 5: strcpy (WEEK,"FRIDAY"); break;
case 6: strcpy (WEEK,"SATURDAY"); break;
}
printf ("\n this day is %s \( %d \)\n\n OK!\n",WEEK,week);
}
else
{
week=++week%7;
printf ("\n the calender of this month as following\n");
printf ("\n *********************************\n");
printf (" SUN MON TUE WEN THU FRI STA\n");
for (i=0;iweek;i++)
printf (" ");
for (i=1;i=month;i++)
{
printf (" %2d ",i);
week++;
if (week%7==0i!=month)
printf ("\n");
}
printf ("\n *********************************\n");
printf ("\n OK!\n");
}
}
这是一个万年历的小程序,效率不怎么高,不过涉及到很多基础知识,可以读读