用c语言编写一个简易的抽奖程序，

用data.txt文件保存以下内容：

13725528132 李桂荣

13725528131 李二来

13725528133 张荣刚

13725528130 荣南

13725528137 王三

13725528138 吴立

13725528139 郭德纲

13725528140 周星驰

13725528141 张曼玉

13725528142 张艺谋

13725528152 秦香莲

13725528162 潘金莲

13725528172 李大嘴

13725528182 展堂

//源代码如下

#include <stdio.h>

#include <stdlib.h>

#include <time.h>

#define MAX_NUM 9999

//定义保存人名和电话的数据结构

struct Person

{

char name[20]

char telno[15]

char award

}

int num = 0//统计人数

FILE *fp//文件指针

Person persons[MAX_NUM]//定义数组

int awarder_1[1] = {-1}//一等奖

int awarder_2[2] = {-1, -1}//二等奖

int awarder_3[5] = {-1, -1, -1, -1, -1}//三等奖

//读取文件

void readdata()

{

int i = 0//数组下标

Person person

//文件打开

fp = fopen("data.txt", "r")

if (fp == NULL)

{

printf("打开文件data.txt失败!\n")

return

}

//当文件不为空

while (!feof(fp))

{

num ++

fscanf(fp, "%s", person.telno)

fscanf(fp, "%s", person.name)

person.award = 'F'

persons[i++] = person

}

}

//初始化标识

void init()

{

for(int i = 0i <numi++)

{

persons[i].award = 'F'

}

}

//显示单个中奖信息

void info( int i)

{

printf("手机号码: %s 姓名: %s\n", persons[i].telno, persons[i].name)

}

void main()

{

char again = 'Y'

//读取文件

readdata()

printf("简单抽奖程序\n")

srand((long)time(0))

while(again == 'Y' || again == 'y')

{

//初始化标识

init()

printf("\n开始抽第一等奖(1名)，按任意键开始...\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开始抽第二等奖(2名)\n")

for (int i = 0i <2i++)

{

printf("\n第%d个二等奖,按任意键开始...\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开始抽第三等奖(5名)\n")

for (i = 0i <5i++)

{

printf("\n第%d个三等奖,按任意键开始...\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是否重新开始抽奖?(Y or N)...\n")

again = getchar()

}

getchar()

return

}

#include<stdio.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z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=0i<awarder_numi++)

{

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z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=0i<awarder_numi++)

{

if (strcmp(awarder[i].name,name) == 0)

{

printf("您选择的抽奖者的信息如下：\n")

printf("身份z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z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=0i<awarderNo-1i++)

if(cur_award == second_award[i])

return true

}

else if(awarderNo <= 8)

{

if(cur_award == first_award[0])

return true

for(int i=0i<2i++)

if(cur_award == second_award[i])

return true

for(i=0i<awarderNo-3i++)

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=0i<2i++)

{

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=0i<5i++)

{

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z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=0i<2i++)

{

printf("第%d个二等奖获得者：\n")

printf("\t身份z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=0i<5i++)

{

printf("第%d个三等奖获得者：\n")

printf("\t身份z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 *** 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 *** 作完成。\n")

return true

}

void main()

{

while(raise())

}

代码如下，已测试通过：

int main()

{

int no,ret

printf("请输入你猜测的号码：\n")

scanf("%d",&no)

ret=rand()%10

printf("本次开奖结果=[%d]：\n",ret)

if(no==ret)

{

printf("恭喜你猜中了，中奖10元！\n")

}

else

{

printf("很遗憾，再来一次吧！\n")

}

return 0

}

可以把上面代码改成多次输入，即将输入和取随机数都放在while循环中。自己修改下吧

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