#include<stdio.h>
#include<string.h>
#include<stdlib.h>
//-------登录设置
void login()
{
int number=0;
char username[20],password[20];//定义用户名和密码
while(number<3)
{
system("cls");//清屏
printf("\n\n");
printf("\t\t*******************************\t\t\n");
printf("\t\t 用户登录 \t\t\n");
printf("\t\t*******************************\t\t\n");
printf("\n\n");
printf("\t\t\t用户名称：");
scanf("%s",username);
printf("\n\n");
printf("\t\t\t用户密码：");
scanf("%s",password);
if(strcmp(username,"qt")==0&&strcmp(password,"qt")==0)
{
beforeMianMenu();//strcmp字符串比较函数
break;
}
else if(strcmp(username,"ht")==0&&strcmp(password,"ht")==0)
{
backMianMenu();//strcmp字符串比较函数
break;
}
else
{
system("cls");//清屏
printf("请输入正确选项！按任意键返回：");
getchar();
getchar();//按任意键返回
number++;
}
}
}
// ----后台页面设置
void backMianMeun()
{
int choice;//选择功能项
char con;//是否继续
while(1)
{
//实现循环选择；程序主页面
system("cls");
printf("\n\n");
printf("\t\t*******************************\t\t\n");
printf("\t\t 后台主页面 \t\t\n");
printf("\t\t*******************************\t\t\n");
printf("\n\n");
printf("\t\t\t1.商品维护：\n\n");
printf("\t\t\t2.会员管理：\n\n");
printf("\t\t\t3.库存提示：\n\n");
printf("\t\t\t\t0.退出系统：\n\n");
printf("\t\t请输入你的选择：\n\n");
scanf("%d",&choice);
switch(choice)
{
case 1: goodsAdd();break;
case 2: memberManage();break;
case 3: stockWarn();break;
case 0: printf("\t\t确认要退出吗(y/n)");
scanf("%c",&con);
if(con=='Y'||con=='N')
exit(0);//退出系统
break;
default: system("cls");//清屏
printf("请输入正确选项！按任意键返回：");
getchar();
getchar();//按任意键返回
}
}
}
//---------前台设置
void beforeMianMeun()
{
int choice;//选择功能项
char con;//是否继续
while(1)
{
//实现循环选择；程序主页面
system("cls");
printf("\n\n");
printf("\t\t*******************************\t\t\n");
printf("\t\t 前台主页面 \t\t\n");
printf("\t\t*******************************\t\t\n");
printf("\n\n");
printf("\t\t\t1.商品销售：\n\n");
printf("\t\t\t2.库存预示：\n\n");
printf("\t\t\t\t0.退出系统：\n\n");
printf("\t\t请输入你的选择：\n\n");
scanf("%d",&choice);
switch(choice)
{
case 1: goodsSale();break;
case 2: stockWarn();break;
case 0: printf("\t\t确认要退出吗(y/n)");
scanf("%c",&con);
if(con=='Y'||con=='N')
exit(0);//退出系统
break;
default: system("cls");//清屏
printf("请输入正确选项！按任意键返回：");
getchar();
getchar();//按任意键返回
}
}
}
// ---会员设置
void memberManage()
{
int choice;
char con;
while(1)
{
system("cls");
printf("\n\n");
printf("\t\t*******************************\t\t\n");
printf("\t\t 会员管理 \t\t\n");
printf("\t\t*******************************\t\t\n");
printf("\n\n");
printf("\t\t\n1.会员添加\n\n");
printf("\t\t\n2.会员查询\n\n");
printf("\t\t\n3.会员统计\n\n");
printf("\t\t\n4.删除会员\n\n");
printf("\t\t\n0.返回主页面：");
printf("请输入你的选择:");
scanf("%d",&choice);
switch(choice)
{
case 1:memberdsAdd();break;//会员添加
case 2:memberQuery();break;//会员查询加
case 3:memberStat();break;//会员统计
case 4:memberDeleteMenu();break;//删除会员
case 0:
//返回主页面
printf("\t\t确认要返回主页面吗？(Y/N)：");
scanf("%c",&con);
if(con=='Y'||con=='y')
{
beforeMianMenu();
}
break;
default:
system("cls");
printf("请输入正确选择！(按任意键返回会员管理)");
getchar();getchar();//任意键返回
}
}
}
void memberQurey()
{
int choice;
char con;
int number;
while(1)
{
system("cls");
printf("\n\n");
printf("\t\t*******************************\t\t\n");
printf("\t\t 会员查询 \t\t\n");
printf("\t\t*******************************\t\t\n");
printf("\n\n");
printf("\t\t按会员编号查询：\t\n\n");
printf("\t\t按身份证号查询：\t\n\n");
printf("\t\t按会员名称查询：\t\n\n");
printf("\t\t\n0.返回主页面：");
printf("请输入你的选择:");
scanf("%d",&choice);
switch(choice)
{
case 1:
printf("请输入会员编号：");
scanf("%d",&number);
numberQuery(number,0);
break;
case 2:
identityQuery();
break;
case 3:
nameQuery();
break;
case 0:
printf("\t\t确认要返回主页面吗？(Y/N)：");
scanf("%c",&con);
if(con=='Y'||con=='y')
{
beforeMianMenu();
}
break;
default:
system("cls");
printf("请输入正确选择！(按任意键返回会员管理)");
getchar();getchar();//任意键返回
}
}
}
//-----------会员统计
void memberStatMenu()
{
int choice;
char con;
while(1)//循环选择
{
system("cls");
printf("\n\n");
printf("\t\t*******************************\t\t\n");
printf("\t\t 会员统计 \t\t\n");
printf("\t\t*******************************\t\t\n");
printf("\n\n");
printf("\t\t\n1.按会员编号降序排列\n\n");
printf("\t\t\n2.按会员编号升序排列\n\n");
printf("\t\t\n0.返回会员管理：");
scanf("%d",&choice);
switch(choice)
{
case 1:
memberStat(1);//降序
break;
case 2:
memberStat(2);//升序
break;
case 0:
{//返回主页面
printf("\t\t确认要返回吗？(Y/N)：");
scanf("%c",&con);
if(con=='Y'||con=='y')
return;
}
break;
default:
system("cls");
printf("请输入正确选择！(按任意键返回)");
getchar();getchar();//任意键返回
}
}
}
//----会员添加
void memberAdd()
{
struct member hy;
FILE *fp,*bhfp;
int bh=1;
char con;
//打开一个二进制文件夹,添加数据
if((fp=fopen("data\\member.dat","ab"))==NULL)
{
fp=fopen("data\\member.dat","wb");
return;
}
while(1)
{
if((bhfp=fopen("data\\memberNumber.dat","r"))==NULL)
{
printf("不能打开文件夹，可按任意键新建\n");
bhfp=fopen("data\\memberNumber.dat","wb");
putw(1,bhfp);
fclose(bhfp);
getchar();getchar();
memberManage();
}
else
{
bh=getw(bhfp);
}
hy.memberNumber=bh;
fclose(bhfp);
system("cls");
printf("\n\n");
printf("\t\t*******************************\t\t\n");
printf("\t\t 会员添加 \t\t\n");
printf("\t\t*******************************\t\t\n");
printf("\n\n");
//会员信息录入
printf("\t\t会员的编号：\t%d\n",bh);
printf("\t\t请输入会员姓名：\n");
scanf("%s",&hy.memberName);
printf("\t\t请输入会员身份证号：\n");
scanf("%s",&hy.identity);
printf("\t\t请确认添加会员的信息：(Y/N)\n");
scanf("%c",&con);
if(con=='Y'||con=='y')
{
if((fwrite(&hy,sizeof(struct number),1,fp)!=1)
{
printf("\n\n添加失败!\n");
}
else
{
printf("\n\n添加成功!\n");
//保存会员
if((bhfp=fopen("data\\memberNumber.dat","w"))==NULL)
{
printf("不能打开文件夹\n");
putw(1,bhfp);
return;
}
//会员编号递增
putw(bh+1,bhfp);
fclose(bhfp);
getchar();getchar();
}
}
//返回处理
printf("\t\t确认要返回吗？(Y/N)：");
scanf("%c",&con);
if(con=='N'||con=='n')
{
break;
}
}
fclose(fp);
}
//---------会员编号查询
int numberQuery(int number)
{
struct member hy;
FILE *fp;
if((fp=fopen("data\\member.dat","rb"))==NULL)
{
printf("不能打开文件夹！\n");
return 0;
}
while(!feof(fp))
{
fread(&hy,sizeof(struct member),1,fp);
if(hy.memberNumber==number)
{
system("cls");
printf("\n\n");
printf("\t\t*******************************\t\t\n");
printf("\t\t 会员查询结果： \t\t\n");
printf("\t\t*******************************\t\t\n");
printf("\n\n");
printf("\t\t按会员编号查询：\t%d\n\n",hy.memberNumber);
printf("\t\t按会员身份证号查询\t%d\n\n",hy.identity);
printf("\t\t按会员名称查询：\t%s\n\n",hy.memberName);
printf("\t\t按任意键返回会员查询页面");
getchar();getchar();
fclose(fp);
return 1;
}
}
system("cls");
printf("\n\n无此会员编号");
printf("\t\t按任意键返回会员查询页面");
getchar();getchar();
fclose(fp);
return 0;
}
//----按会员姓名查询
void nameQuery()
{
struct member hy;
int found=0;//0--未找到，1--找到。
char memberName[20];
FILE *fp;
if((fp=fopen("data\\member.dat","rb"))==NULL)
{
printf("文件夹不能打开！\n");
return;
}
pirntf("请输入会员姓名");
scanf("%s",&memberName);
while(!feof(fp))
{
fread(&hy,sizeof(struct member),1,fp);
if(struct(hy.memberName,memberName)==0)
{
system("cls");
found=1;
printf("\n\n");
printf("\n\n");
printf("\t\t*******************************\t\t\n");
printf("\t\t 查询结果如下： \t\t\n");
printf("\t\t*******************************\t\t\n");
printf("\n\n");
printf("\t\t会员编号：\t%d\n\n",hy.memberNumber);
printf("\t\t会员身份证号\t%d\n\n",hy.identity);
printf("\t\t会员名称：\t%s\n\n",hy.memberName);
printf("\t\t按任意键返回会员查询页面");
getchar();getchar();
break;
}
if(found==0)
{
system("cls");
printf("\n\n无此会员");
printf("\t\t按任意键继续查询");
getchar();getchar();
}
fclose(fp);
}
//---按身份证号查询
void identityQuery()
{
struct member hy;
int found=0;//0--未找到，1--找到。
char identity[19];
FILE *fp;
if((fp=fopen("data\\member.dat","rb"))==NULL)
{
printf("文件夹不能打开！\n");
return;
}
pirntf("请输入会员身份证号");
scanf("%s",&identity);
while(!feof(fp))
{
fread(&hy,sizeof(struct member),1,fp);
if(struct(hy.identity,identity)==0)
{
system("cls");
found=1;
printf("\n\n");
printf("\n\n");
printf("\t\t*******************************\t\t\n");
printf("\t\t 查询结果如下： \t\t\n");
printf("\t\t*******************************\t\t\n");
printf("\n\n");
printf("\t\t会员编号：\t%d\n\n",hy.memberNumber);
printf("\t\t会员身份证号\t%d\n\n",hy.identity);
printf("\t\t会员名称：\t%s\n\n",hy.memberName);
printf("\t\t按任意键返回会员查询页面");
getchar();getchar();
break;
}
if(found==0)
{
system("cls");
printf("\n\n无此会员");
printf("\t\t按任意键继续查询");
getchar();getchar();
}
fclose(fp);
}
/* ---会员统计-----*/
int memberStat(int i)
{
struct member hy;
struct member memberinfo[1000];
int countNum=0;
int k,j;
FILE *fp;
if((fp=fopen("data\\member.dat","rb"))==NULL)
{
printf("不能打开文件夹！\n");
return 0;
}
if(!feof(fp))
{
fread(&hy,sizeof(struct member),1,fp);
}
while(!feof(fp))
{
memberinfo[countNum]=hy;
countNum++;
fread(&hy,sizeof(struct member),1,fp);
}
if(i==1)
{
for(j=0;j<countNum;j++)
{
for(k=j+1;k<countNum;k++)
{
if(memberinfo[j].memberNumber<memberinfo[k].memberNumber)
{
struct member temp;
temp=memberinfo[j];
memberinfo[j]=memberinfo[k];
memberinfo[k]=temp;
}
}
}
}
else
{
for(j=0;j<countNum;j++)
{
for(k=j+1;k<countNum;k++)
{
if(memberinfo[j].memberNumber>memberinfo[k].memberNumber)
{
struct member temp;
temp=memberinfo[j];
memberinfo[j]=memberinfo[k];
memberinfo[k]=temp;
}
}
}
}
system("cls");
printf("\n\n");
printf("\t\t*******************************\t\t\n");
printf("\t\t 会员列表 \t\t\n");
printf("\t\t*******************************\t\t\n");
printf("\n\n会员总数为：%d",countNum);
printf("\n\n");
printf("\t\t会员编号：");
printf("\t\t会员名称：");
printf("\t\t会员身份证号：");
printf("\n\n");
for(j=0;j<countNum;j++)
{
printf("\t\t%d",memberinfo[j].memberNumber);
printf("\t\t%s",memberinfo[j].memberName);
printf("\t\t%s",memberinfo[j].identity);
printf("\t\n\n");
}
printf("\t\t按任意键返回");
getchar();getchar();
fclose(fp);
return 1;
}
/*-----------按编号查询----------*/
int numberQuery(int number,int flag)
{
struct member hy;
FILE *fp;
if((fp=fopen("data\\member.dat","rb"))==NULL)
{
printf("不能打开文件夹！\n");
return 0;
}
while(!feof(fp))
{
fread(&hy,sizeof(struct member),1,fp);
if(hy.memberNumber==number)
{
if(flag==0)
{
system("cls");
printf("\n\n\n\t查询结果如下");
printf("\t\t 会员编号： \t%d",hy.memberNumber);
printf("\t\t 会员姓名： \t%s",hy.memberName);
printf("\t\t 身份证号： \t%s",hy.identity);
printf("\t\n\n");
printf("\t\t按任意键返回");
getchar();getchar();
fclose(fp);
return 1;
}
else
{
fclose(fp);
return 1;
break;
}
}
}
if(flag==0)
{
system("cls");
printf("\n\n\n\t无此会员编号");
printf("\t\n\n");
printf("\t\t按任意键返回");
getchar();getchar();
}
fclose(fp);
return 0;
}
/*-----------会员删除---------------*/
void deleteMemberMenu()
{
char con;
int choice;
while(1)
{
system("cls");
printf("\n\n");
printf("\t\t*******************************\t\t\n");
printf("\t\t 会员删除 \t\t\n");
printf("\t\t*******************************\t\t\n");
printf("\n\n");
printf("\t\t\0、返回会员管理：\n\n");
printf("\t\t请输入删除会员的编号：\n");
scanf("%d",&choice);
if(choice==0)
{
break;
}
else
{
if(numberQuery(choice,1)==1)
{
printf("\t\t确认要删除此会员吗？(Y/N)\n");
scanf("%s",&con);
if(con=='n'||con=='N')
{
break;
}
}
deleteMember(choice);
}
else
{
system("cls");
printf("\n\n无此会员");
printf("\t\t按任意键继续查询");
getchar();getchar();
system("cls");
deleteMemberMenu();
}
}
//-------会员删除
void deleteMember(int bianhao)
{
struct member hy[100];
FILE *fp;
int i,j;
char con;
int memberNumber=0;
if((fp=fopen("data\\member.dat","rb"))==NULL)
{
printf("cannot open file\n");
return;
}
while(!feof(fp))//feof检测流上的文件结束符
{
if(fread(&hy[memberNumber],sizeof(struct member),1,fp)==1)
{
memberNumber++;
}
fclose(fp);
for(i=0;i<memberNumber;i++)
{
if(hy[i].memberNumber==bianhao)
{
if(i==-1)//文件中没有数据
{
printf("无会员记录，按回车键返回会员管理界面");
memberManage();
}
forj=i;j<memberNumber;j++)
{
hy[j]=hy[j+1];
}
}
}
if((fp=fopen("data\\member.dat","wb"))==NULL)
{
printf("cannot open file\n");
return;
}
for(i=0;i<memberNumber-1;i++)
{
if((fp=fwrite(&hy[i],sizeof(struct member),1,fp)!=1)
printf("write error!");
}
fclose(fp);
}
/* ---------商品维护------------ */
void goodsAdd()
{
int i=1;
struct goods sp;
FILE *fp;
char con;
sp.stockPrice=0;
sp.salePrice=0;
while(1)//实现循环添加商品
{
//程序主页面
system("cls");
printf("\n\n");
printf("\t\t*******************************\t\t\n");
printf("\t\t 商品维护 \t\t\n");
printf("\t\t*******************************\t\t\n");
printf("\n\n");
int i=1;
printf("请输入商品的编号：\n");
scanf("%d",&sp.goodsNumber);
printf("请输入商品的名称：\n");
scanf("%s",&sp.goodsName);
printf("请输入商品的生产日期：(YYYY-MM-DD)\n");
scanf("%d-%d-%d",&sp.produceDate.year,&sp.produceDate.month,&sp.produceDate.day);
printf("请输入商品的保质期：");
scanf("%d",&sp.assureDate);
printf("请输入商品的类型：");
scanf("%s",&sp.goodsType);
printf("请输入商品的进价：");
scanf("%f",&sp.stockPrice);
printf("请输入商品的数量：");
scanf("%d",&sp.amount);
printf("请输入商品的单价：");
scanf("%f",&sp.salePrice);
printf("\n确认添加商品吗？（Y/N）:");
scanf("%c",&con);
if(con=='y'||con=='Y')
{
if((fp=fopen("data\\goods.dat","ab"))==NULL)
{
fp=fopen("data\\goods.dat","wb");
break;
}
if(fwrite(&sp,sizeof(struct goods),1,fp)!=1)
{
printf("\n\n添加失败!\n\n");
}
else
{
printf("\n\n添加成功!\n");//保存商品
}
fclose(fp);
}
//返回处理
printf("\n\t确认添加商品吗？(Y/N)：\n");
scanf("%c",&con);
if(con=='n'||con=='N')
{
break;
}
}
}
//商品销售---购物清单
void goodsSale()
{
struct goods sp;
int chooseGoods[100][2];//保存用户选购商品数量和编号
FILE *fp1;
char con;//是否继续购买
float discount;//商品打折
int flag;
int stock=0,buyKind=0,i;//buykind记录客户购买的种类
float dueMoney=0,payMoney,change;//应付金额、实付金额，找零金额
if((fp1=fopen("data\\goods.dat","rb"))==NULL)//提取商品信息
{
printf("cannot open file\n");
return;
}
system("cls");
printf("\n\n");
printf("\t\t*******************************\t\t\n");
printf("\t\t 商品销售 \t\t\n");
printf("\t\t*******************************\t\t\n");
printf("\n\n");
//选购商品
while(1)
{
printf("\n\t\t请输入商品的编号：\n");
scanf("%d",&chooseGoods[buyKind][0]);
printf("\n\t\t请输入商品的数量：\n");
scanf("%d",&chooseGoods[buyKind][1]);
printf("\n 你购买的商品总价为：%.2f",dueMoney);
printf("\n\t\t还要继续购买吗？（Y/N）\n");
scanf("%c",&con);
if(con=='n'||con=='N')
{
break;
}
buyKind++;
if(con=='Y'||con=='y')
{
printf("\n\t\t你是会员吗？（Y/N）\n");
scanf("%c",&con);
if(con=='Y'||con=='y')
{
//检查是否是会员
while(1)
{
printf("\n\t\t请输入你的会员编号：\n");
scanf("%d",&number);
if(!numberQurey(number,1))
{
flag=0;
printf("\t无此会员编号；\n");
continue;
}
else
{
flag=1;
break;
}
}
}
}
//完成商品总数量的处理
amountDeal(chooseGoods,buyKind);
//结算找零
printf("请你付钱：谢谢。");
scanf("%.2f",payMoney);
if(flag==0)
{
//非会员情况
if(payMoney==dueMoney)
{
printf("你付账的金额正合适，谢谢你的光临，再见！n\n");
getchar();getchar();
}
else
{
change=payMoney-dueMoney;
if(change>0)
{
printf("找你%.2f\n",change);
printf("谢谢你的光临，再见！\n");
getchar();getchar();
}
else
{
printf("金额不足，请重新操作！\n");
getchar();getchar();
}
}
}
else
{
//打折优惠处理
printf("\n\t\t你是否要打折（Y/N）\n");
scanf("%c",&con);
if(con=='Y'||con=='y')
{
printf("\n\t\t请你输入商品打折比例(0.00)\n");
scanf("%f",&discount);
{
if(payMoney==dueMoney*discount)
{
printf("你付账的金额正合适，谢谢你的光临，再见！n\n");
getchar();getchar();
}
else
{
change=payMoney-dueMoney*discount;
if(change>0)
{
printf("找你%.2f\n",change);
printf("谢谢你的光临，再见！\n");
getchar();getchar();
}
else
{
printf("你付账的金额正合适，谢谢你的光临，再见！n\n");
getchar();getchar();
}
}
}
}
}
system("cls");
printf("\n\n");
printf("\t\t*******************************\t\t\n");
printf("\t\t 购物清单 \t\t\n");
printf("\t\t*******************************\t\t\n");
printf("\t\t商品编号，\t商品名称，\t商品单价，\t商品数量\n\n");
for(i=0;i<=buyKind;i++)
{
while(!feof(fp1))
{
fread(&sp,sizeof(struct goods),1,fp1);
if(chooseGoods[i][0]==sp.goodsNumber)
{
int tempAmount=sp.amount;
if(tempAmount<chooseGoods[i][1])
{
printf("\n\n\t%d\t\t%s\t\t%.2f\t\t%d",chooseGoods[i][0],sp.goodsName,sp.salePrice,sp.amount+1);
printf("\t\t*******************************\t\t\n");
printf("\t\t\n 库存不足,商品未计价，按回车键返回！ ");
getchar(); getchar();
beforeMianMeun();
}
else
{
dueMoney=dueMoney+chooseGoods[i][1]*sp.salePrice;
printf("\n\n\t%d\t\t%s\t\t%.2f\t\t%d",chooseGoods[i][0],sp.goodsName,sp.salePrice,chooseGoods[i][1]);
printf("\t\t*******************************\t\t\n");
rewind(fp1);
}
break;
}
}
}
fclose(fp1);
fclose(fp1);
}
//商品销售---动态处理商品
void amountDeal(int chooseGoods[][2],int buyKind)
{
struct goods sp[100];
FILE *fp;
int i,j;
int goodsNumber=0;
if((fp=fopen("data\\goods.dat","rb"))==NULL)//提取商品信息
{
printf("cannot open file\n");
return;
}
while(!feof(fp))//feof检测流上的文件结束符
{
if(fread(&sp[goodsNumber],sizeof(struct goods),1,fp)==1)
{
goodsNumber++;
}
fclose(fp);
//将库存商品数量减去已销售数量
for(j=1;j<goodsNumber;j++)
{
for(i=1;i<buyKind;i++)
{
if(sp[j].goodsNumber==chooseGoods[i][0])
{
sp[j].amount=sp[j].amount-chooseGoods[i][1];
break;
}
}
}
if((fp=fopen("data\\goods.dat","wb"))==NULL)//数据写入
{
printf("cannot open file\n");
return;
}
for(i=1;i<goodsNumber;i++)
{
if(fwrite(&sp[i],sizeof(struct goods),1,fp)!=1)
printf("write error");
}
fclose(fp);
}
/*-----超市库存预警------*/
void stockWarn()
{
struct goods sp;
FILE *fp;
int stock=0;
if((fp=fopen("data\\goods.dat","rb"))==NULL)//提取商品信息
{
printf("cannot open file\n");
return;
}
system("cls");
printf("\n\n");
printf("\t\t*******************************\t\t\n");
printf("\t\t 库存预警 \t\t\n");
printf("\t\t*******************************\t\t\n");
while(!feof(fp1))//feof检测流上的文件结束符
{
if(fread(&sp,sizeof(struct goods),1,fp)==1)
{
if(sp.amount<100)
{
if(stock==0)
{
printf("\n\t\t剩余商品不足100件，请你尽快补充货源！\n");
}
stock==1;
printf("\t\t商品编号：");
printf("\t\t商品名称：");
printf("\t\t商品数量：");
printf("\t\t*******************************\t\t\n");
}
}
}
printf("\n\n按任意键返回");
getchar();getchar();
fclose(fp);
}
//----主函数
void main()
{
//定义日期结构体
struct date
{
int year;
int month;
int day;
};
//定义商品结构体
struct goods
{
int goodsNumber;//商品编码
char goodsName[20];//商品名称
char goodsType[20];//商品类型
struct date produceDate;//生产日期
int assureDate;//保质期
float stockPrice;//商品进价
int amount;//商品数量
float salePrice;//商品单价
};
//定义会员结构体
struct member
{
int memberNumber;//会员编号
char identity[20];//身份编号证
char memberName[20];//会员名称
};
login();
getchar();
}