怎样用C语言编写抽奖程序

自己看着修改一下就ok了， 。。。

/*
预先将参加抽奖者的资料输入存储起来，主要用结构体数组实现，用结构体表示每项记录，包括身份证号码、姓名、电话、住址等信息。开始抽奖时，屏幕上快速闪动参与者的身份证号码，按任意键停止闪动，把中奖人的信息用显示在屏幕上。可反复抽出一、二、三等奖若干名。
设计实现以下功能：
（1）录入：完成抽奖者信息的输入；
（2）删除：完成抽奖者信息的删除；
（3）修改：允许对已经录入的数据重新进行编辑、修改；
（4）显示：显示所有中奖者的信息；
（5）抽奖：
a. 抽出一等奖 1 名，如果抽过就不能再抽；
b. 抽出二等奖 2 名，如果抽完就不能再抽；
c. 抽出三等奖 5 名，如果抽完就不能再抽；
（6）退出程序。*/

#include
#include
#include
#include
#include
#include
#define AWARDER_NUM 10
typedef struct tag_award
{
char ID[20];
char name[20];
char telNo[20];
char address[50];
}AWARDER;

AWARDER * awarder = new AWARDER[AWARDER_NUM];
int first_award[1] = {-1};
int second_award[2] = {-1,-1};
int third_award[5] ={-1,-1,-1,-1,-1};
int awarder_num = 0;

void info_login()
{
if(awarder_num >= AWARDER_NUM)
{
AWARDER * new_awarder = new AWARDER[awarder_num + AWARDER_NUM];
memcpy(new_awarder,awarder,awarder_num*sizeof(AWARDER));
delete awarder;
awarder = new_awarder;
}

printf("身份证号：");
scanf("%s",awarder[awarder_num].ID);
printf("姓名：");
scanf("%s",awarder[awarder_num].name);
printf("电话号码：");
scanf("%s",awarder[awarder_num].telNo);
printf("家庭住址：");
scanf("%s",awarder[awarder_num].address);

awarder_num++;
}
void info_delete()
{
char name[20];
printf("输入您要删除的抽奖者的姓名：");
scanf("%s",name);
for(int i=0;i {
if (strcmp(awarder[i].name,name) == 0)
{
printf("您选择删除的抽奖者的信息如下：\n");
printf("身份证号：%s\n",awarder[i].ID);
printf("姓名：%s\n",awarder[i].name);
printf("电话号码：%s\n",awarder[i].telNo);
printf("家庭住址：%s\n",awarder[i].address);
break;
}
}
if(i == awarder_num)
{
printf("没有找到您输入的抽奖者！\n");
}
else
{
char c;
printf("您确定要删除吗？(Y//N)");
fflush(stdin);
scanf("%c",&c);
if(c == 'Y' || c == 'y')
{
AWARDER * new_award = new AWARDER[awarder_num-1];
if(i <= 0)
memcpy(new_award,awarder+1,sizeof(AWARDER) * (awarder_num - 1));
else if( i >= awarder_num -1)
memcpy(new_award,awarder,sizeof(AWARDER) * (awarder_num - 1));
else
{
memcpy(new_award,awarder,sizeof(AWARDER) * i);
memcpy(new_award+i,awarder+i+1,sizeof(AWARDER) * (awarder_num - i - 1));
}
awarder_num--;
delete awarder;
awarder = new_award;
}
}

}
void info_modify()
{
char name[20];
printf("输入您要修改的抽奖者的姓名：");
scanf("%s",name);
for(int i=0;i {
if (strcmp(awarder[i].name,name) == 0)
{
printf("您选择的抽奖者的信息如下：\n");
printf("身份证号：%s\n",awarder[i].ID);
printf("姓名：%s\n",awarder[i].name);
printf("电话号码：%s\n",awarder[i].telNo);
printf("家庭住址：%s\n",awarder[i].address);
break;
}
}
if(i == awarder_num)
{
printf("没有找到您输入的抽奖者！\n");
}
else
{
printf("请输入该抽奖者的新信息：\n");
printf("身份证号：");
scanf("%s",awarder[i].ID);
printf("姓名：");
scanf("%s",awarder[i].name);
printf("电话号码：");
scanf("%s",awarder[i].telNo);
printf("家庭住址：");
scanf("%s",awarder[i].address);
}
}

bool check_over(int cur_award,int awarderNo)
{
if(awarderNo == 1)
{
if(cur_award == first_award[0])
return true;
}
else if(awarderNo <= 3)
{
if(cur_award == first_award[0])
return true;
for(int i=0;i if(cur_award == second_award[i])
return true;
}
else if(awarderNo <= 8)
{
if(cur_award == first_award[0])
return true;
for(int i=0;i<2;i++)
if(cur_award == second_award[i])
return true;
for(i=0;i if(cur_award == third_award[i])
return true;
}
return false;
}
void award()
{
if(awarder_num < 8)
{
printf("人数太少，请添加足够的人再抽奖！\n");
return;
}
srand((long)time(0));
char hit_id[20];
printf("\n开始抽第一等奖（1名），按任意键开始...\n");
getch();
while(!kbhit())
{
first_award[0] = rand() % awarder_num;
memcpy(hit_id,awarder[first_award[0]].ID,18);
printf("\r ");
printf("\r %s",hit_id);
}
printf("\n\n开始抽第二等奖（2名）");
for (int i=0;i<2;i++)
{
printf("\n第%d个二等奖,按任意键开始...\n",i+1);
getch();
while(!kbhit())
{
second_award[i] = rand() % awarder_num;
while(check_over(second_award[i],1+i))
second_award[i] = rand() % awarder_num;
memcpy(hit_id,awarder[second_award[i]].ID,18);
printf("\r ");
printf("\r %s",hit_id);
}
}
printf("\n\n开始抽第三等奖（5名）");
for (i=0;i<5;i++)
{
printf("\n第%d个三等奖,按任意键开始...\n",i+1);
getch();
while(!kbhit())
{
third_award[i] = rand() % awarder_num;
while(check_over(third_award[i],3+i))
third_award[i] = rand() % awarder_num;

memcpy(hit_id,awarder[third_award[i]].ID,20);
printf("\r ");
printf("\r %s",hit_id);
}
}

}
void info_show()
{
printf("一等奖获得者：\n");
printf("\t身份证号：%s\n",awarder[first_award[0]].ID);
printf("\t姓名：%s\n",awarder[first_award[0]].name);
printf("\t电话号码：%s\n",awarder[first_award[0]].telNo);
printf("\t家庭住址：%s\n",awarder[first_award[0]].address);
printf("二等奖获得者：\n");
for (int i=0;i<2;i++)
{
printf("第%d个二等奖获得者：\n");
printf("\t身份证号：%s\n",awarder[second_award[i]].ID);
printf("\t姓名：%s\n",awarder[second_award[i]].name);
printf("\t电话号码：%s\n",awarder[second_award[i]].telNo);
printf("\t家庭住址：%s\n",awarder[second_award[i]].address);
}
printf("三等奖获得者：\n");
for (int i=0;i<5;i++)
{
printf("第%d个三等奖获得者：\n");
printf("\t身份证号：%s\n",awarder[third_award[i]].ID);
printf("\t姓名：%s\n",awarder[third_award[i]].name);
printf("\t电话号码：%s\n",awarder[third_award[i]].telNo);
printf("\t家庭住址：%s\n",awarder[third_award[i]].address);
}

}
/*提示信息*/
bool raise()
{
printf("\n请输入你需要的操作代号：\n");
printf("\t1.录入：完成抽奖者信息的输入;\n");
printf("\t2.删除：完成抽奖者信息的删除;\n");
printf("\t3.修改：允许对已经录入的数据重新进行编辑、修改;\n");
printf("\t4.抽奖：开始抽奖！\n");
printf("\t5.显示：显示所有中奖者的信息;\n");
printf("\t6.退出。\n");
printf("==>");
int operate;
fflush(stdin);
scanf("%d",&operate);
switch(operate)
{
case 1:
info_login();
break;
case 2:
info_delete();
break;
case 3:
info_modify();
break;
case 4:
award();
break;
case 5:
info_show();
break;
case 6:
return false;
default:
break;
}
printf("\n操作完成。\n");
return true;
}

void main()
{
while(raise());
}

hello；
20个号码在屏幕上滚动输出，可以用时间函数和清屏函数处理。最后回车键选中停止，其实也就是一个跳出死循环的步骤。嗯，这样应该可以了吧。我也没做，很久没写程序了。你试着写一下。