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C語言抽獎程序
單用C標準里的東西，可能無法做；得藉助於操作系統或其他第三方庫提供的多線程。單用C++2003及其以前的標準也無法實現，原因同C，如果依據C++2011標準（2011年剛出台的C++標準）到是可以——C++2011標準加入了多線程，要求C++編譯器支持多線程，但是現在的編譯器估計都還沒有支持。
用c語言編寫一個簡易的抽獎程序，
用data.txt文件保存以下內容：
13725528132 李桂榮
13725528131 李二來
13725528133 張榮剛
13725528130 榮南
13725528137 王三
13725528138 吳立
13725528139 郭德綱
13725528140 周星馳
13725528141 張曼玉
13725528142 張藝謀
13725528152 秦香蓮
13725528162 潘金蓮
13725528172 李大嘴
13725528182 展堂
//源代碼如下
#include stdio.h
#include stdlib.h
#include time.h
#define MAX_NUM 9999
//定義保存人名和電話的數據結構
struct Person
{
char name[20];
char telno[15];
char award;
};
int num = 0; //統計人數
FILE *fp; //文件指針
Person persons[MAX_NUM]; //定義數組
int awarder_1[1] = {-1}; //一等獎
int awarder_2[2] = {-1, -1}; //二等獎
int awarder_3[5] = {-1, -1, -1, -1, -1};//三等獎
//讀取文件
void readdata()
{
int i = 0; //數組下標
Person person;
//文件打開
fp = fopen(“data.txt”, “r”);
if (fp == NULL)
{
printf(“打開文件data.txt失敗!\n”);
return;
}
//當文件不為空
while (!feof(fp))
{
num ++;
fscanf(fp, “%s”, person.telno);
fscanf(fp, “%s”, person.name);
person.award = ‘F’;
persons[i++] = person;
}
}
//初始化標識
void init()
{
for(int i = 0; i num; i++)
{
persons[i].award = ‘F’;
}
}
//顯示單個中獎信息
void info( int i)
{
printf(“手機號碼: %s 姓名: %s\n”, persons[i].telno, persons[i].name);
}
void main()
{
char again = ‘Y’;
//讀取文件
readdata();
printf(“簡單抽獎程序\n”);
srand((long)time(0));
while(again == ‘Y’ || again == ‘y’)
{
//初始化標識
init();
printf(“\n開始抽第一等獎(1名)，按任意鍵開始…\n”);
getchar();
awarder_1[0] = abs(rand() % num);
while (persons[awarder_1[0]].award == ‘T’)
{
awarder_1[0] = rand() % num;
}
persons[awarder_1[0]].award = ‘T’;
info(awarder_1[0]);
printf(“\n開始抽第二等獎(2名)\n”);
for (int i = 0; i 2; i++)
{
printf(“\n第%d個二等獎,按任意鍵開始…\n”, i+1);
getchar();
awarder_2[i] = rand() % num;
while (persons[awarder_2[i]].award == ‘T’)
{
awarder_2[i] = rand() % num;
}
persons[awarder_2[i]].award = ‘T’;
info(awarder_2[i]);
}
printf(“\n\n開始抽第三等獎(5名)\n”);
for (i = 0; i 5; i++)
{
printf(“\n第%d個三等獎,按任意鍵開始…\n”, i + 1);
getchar();
awarder_3[i] = rand() % num;
while (persons[awarder_3[i]].award == ‘T’)
{
awarder_3[i] = rand() % num;
}
persons[awarder_3[i]].award = ‘T’;
info(awarder_3[i]);
}
printf(“\n是否重新開始抽獎?(Y or N)…\n”);
again = getchar();
}
getchar();
return;
}
C語言根據隨機數編寫一個抽獎程序
#includestdio.h
#include conio.h
#include stdlib.h
#include memory.h
#include string.h
#include time.h
#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(“身份證號：”);
scanf(“%s”,awarder[awarder_num].ID);
printf(“姓名：”);
scanf(“%s”,awarder[awarder_num].name);
printf(“電話號碼：”);
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(“輸入您要刪除的抽獎者的姓名：”);
scanf(“%s”,name);
for(int i=0;iawarder_num;i++)
{
if (strcmp(awarder[i].name,name) == 0)
{
printf(“您選擇刪除的抽獎者的信息如下：\n”);
printf(“身份證號：%s\n”,awarder[i].ID);
printf(“姓名：%s\n”,awarder[i].name);
printf(“電話號碼：%s\n”,awarder[i].telNo);
printf(“家庭住址：%s\n”,awarder[i].address);
break;
}
}
if(i == awarder_num)
{
printf(“沒有找到您輸入的抽獎者！\n”);
}
else
{
char c;
printf(“您確定要刪除嗎？(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(“輸入您要修改的抽獎者的姓名：”);
scanf(“%s”,name);
for(int i=0;iawarder_num;i++)
{
if (strcmp(awarder[i].name,name) == 0)
{
printf(“您選擇的抽獎者的信息如下：\n”);
printf(“身份證號：%s\n”,awarder[i].ID);
printf(“姓名：%s\n”,awarder[i].name);
printf(“電話號碼：%s\n”,awarder[i].telNo);
printf(“家庭住址：%s\n”,awarder[i].address);
break;
}
}
if(i == awarder_num)
{
printf(“沒有找到您輸入的抽獎者！\n”);
}
else
{
printf(“請輸入該抽獎者的新信息：\n”);
printf(“身份證號：”);
scanf(“%s”,awarder[i].ID);
printf(“姓名：”);
scanf(“%s”,awarder[i].name);
printf(“電話號碼：”);
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;iawarderNo-1;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;i2;i++)
if(cur_award == second_award[i])
return true;
for(i=0;iawarderNo-3;i++)
if(cur_award == third_award[i])
return true;
}
return false;
}
void award()
{
if(awarder_num 8)
{
printf(“人數太少，請添加足夠的人再抽獎！\n”);
return;
}
srand((long)time(0));
char hit_id[20];
printf(“\n開始抽第一等獎（1名），按任意鍵開始…\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開始抽第二等獎（2名）”);
for (int i=0;i2;i++)
{
printf(“\n第%d個二等獎,按任意鍵開始…\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開始抽第三等獎（5名）”);
for (i=0;i5;i++)
{
printf(“\n第%d個三等獎,按任意鍵開始…\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(“一等獎獲得者：\n”);
printf(“\t身份證號：%s\n”,awarder[first_award[0]].ID);
printf(“\t姓名：%s\n”,awarder[first_award[0]].name);
printf(“\t電話號碼：%s\n”,awarder[first_award[0]].telNo);
printf(“\t家庭住址：%s\n”,awarder[first_award[0]].address);
printf(“二等獎獲得者：\n”);
for (int i=0;i2;i++)
{
printf(“第%d個二等獎獲得者：\n”);
printf(“\t身份證號：%s\n”,awarder[second_award[i]].ID);
printf(“\t姓名：%s\n”,awarder[second_award[i]].name);
printf(“\t電話號碼：%s\n”,awarder[second_award[i]].telNo);
printf(“\t家庭住址：%s\n”,awarder[second_award[i]].address);
}
printf(“三等獎獲得者：\n”);
for (int i=0;i5;i++)
{
printf(“第%d個三等獎獲得者：\n”);
printf(“\t身份證號：%s\n”,awarder[third_award[i]].ID);
printf(“\t姓名：%s\n”,awarder[third_award[i]].name);
printf(“\t電話號碼：%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請輸入你需要的操作代號：\n”);
printf(“\t1.錄入：完成抽獎者信息的輸入;\n”);
printf(“\t2.刪除：完成抽獎者信息的刪除;\n”);
printf(“\t3.修改：允許對已經錄入的數據重新進行編輯、修改;\n”);
printf(“\t4.抽獎：開始抽獎！\n”);
printf(“\t5.顯示：顯示所有中獎者的信息;\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());
}
原創文章，作者：小藍，如若轉載，請註明出處：https://www.506064.com/zh-tw/n/296245.html
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