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=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=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=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=0i<2i++)
{
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=0i<5i++)
{
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())
}
我写成了5个一行，从左到右，如果想要1个1行可以把代码第14行改为
printf("%d\n",prize)
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int main(void) {
int prize, a[51] = {0}
srand(time(NULL))
//j为当前生成成功的个数
for (int i = 0,j=0 i < 50000&&j<51 i++) {
//prize为随机生成的1到50中的某个数
prize = rand() % 50 + 1
//如果a[prize]！=0，说明这轮生成prize之前已经生成过了
//那么就继续循环，生成下一个数
if (a[prize])
continue
//如果这轮生成prize之前没有，那么统计个数j++
//并把a[prize]++，这样a[prize]就不会为0了
j++
a[prize]++
printf("%3d%c", prize,j%5==0?'\n':' ')
}
return 0
}
