【C++】银行存取款管理系统
2022/2/24 1:21:32
本文主要是介绍【C++】银行存取款管理系统，对大家解决编程问题具有一定的参考价值，需要的程序猿们随着小编来一起学习吧！
一、 定义结构体
#include"stdio.h"
#include"iostream"
#include"string.h"
#include<windows.h>
using namespace std;
int num=0;
struct Login{//登录结构体，有用户名和密码
char username[10];
char password[10];
}lg[100];
struct Customerinfo{
char idcard[10];
char cuname[20];
char cupwd[10];
char cuaddr[30];
char phone[11];
float total;
}customer[100];
struct record{
char idcard[10];
char date[12];
char category[8];
float number;
char Handler[20];
}dwrecord[1000];
二、实现系统登录功能
int SystemLogin(char *uname,char *pword){//系统登录功能
FILE *fp;
int i;
if((fp=fopen("login.txt","r"))==NULL){
printf("文件打开失败！\n");
return 0;
}
for(i=0;!feof(fp);i++){
fscanf(fp,"%s%s",&lg[i].username,&lg[i].password);
if((strcmp(lg[i].username,uname)==0)&&(strcmp(lg[i].password,pword)==0))
return 1;
}
fclose(fp);
return 0;
}
三、主界面设计
int display(){//主界面
int m;
printf("--欢迎使用银行存取款系统，请选择你要执行的操作--\n");
printf("------------------------------------------------\n");
printf("-- 0.退出系统 1.录入信息 --\n");
printf("-- 2.存储 3.取款 --\n");
printf("-- 4.存款查询 5.取款查询 --\n");
printf("-- 6.显示信息 7.删除信息 --\n");
printf("-- 8.修改信息 9.存取款统计 --\n");
printf("-- 10.客户存取款排序 --\n");
printf("------------------------------------------------\n");
printf("请输入您的选择(0-10)\n");
scanf("%d",&m);
while(m>10||m<0){
printf("你选择的编号有误请重新输入\n");
scanf("%d",&m);
}
return m;
}
四、录入信息功能的实现
void insertcustomer(){//录入客户的账号信息
FILE *fp;
int i,j,total;
char c;
if((fp=fopen("Customerinfo.txt","r"))==NULL){
printf("文件打开失败！\n");
}
for(j=0;!feof(fp);j++){
total++;
fscanf(fp,"%s%s%s%s%s%f",&customer[j].idcard,&customer[j].cuname,&customer[j].cupwd,&customer[j].cuaddr,&customer[j].phone,&customer[j].total);
}
fp=fopen("Customerinfo.txt","a");
for(i=0;i<100;i++){
printf("请输入%d个人的信息",i+1);
printf("编号：");
scanf("%s",&customer[i].idcard);
printf("客户姓名：");
scanf("%s",&customer[i].cuname);
printf("支取密码：");
scanf("%s",&customer[i].cupwd);
printf("客户地址：");
scanf("%s",&customer[i].cuaddr);
printf("客户电话：");
scanf("%s",&customer[i].phone);
printf("账户总金额：");
scanf("%f",&customer[i].total);
if((i+1)%1==0){
getchar();
printf("是否继续录入客户信息(y|Y)");
scanf("%c",&c);
if(c!='Y'&&c!='y')
break;
}
}
if(total>0)
fprintf(fp,"\n","");
for(int j=0;j<=i;j++){
if(j<i-1)
fprintf(fp,"%s\t%s\t%s\t%s\t%s\t%f\n",customer[j].idcard,customer[j].cuname,customer[j].cupwd,customer[j].cuaddr,customer[j].phone,customer[j].total);
else
fprintf(fp,"%s\t%s\t%s\t%s\t%s\t%f",customer[j].idcard,customer[j].cuname,customer[j].cupwd,customer[j].cuaddr,customer[j].phone,customer[j].total);
}
fclose(fp);
printf("数据保存成功，按回车键继续...");
getchar();
getchar();
}
五、存款功能的实现
void deposit(){//存款操作
system("cls");
printf("正在进行存款操作！");
int i,j,flag=0,n=0,total=0,m=0;
float k;
FILE *fp,*ap;
if((fp=fopen("Customerinfo.txt","r"))==NULL){
printf("文件打开失败！\n");
return;
}
printf("请输入客户编号：\n");
scanf("%s",&dwrecord[m].idcard);
for(i=0;!feof(fp);i++){//读取用户信息，判断所要进行存款操作的账户是否存在
fscanf(fp,"%s%s%s%s%s%f",&customer[j].idcard,&customer[j].cuname,&customer[j].cupwd,&customer[j].cuaddr,&customer[j].phone,&customer[j].total);
if(strcmp(customer[i].idcard,dwrecord[m].idcard)==0){
flag=1;
n=i;
}
}
if(flag){//找到相应的账户，进行存款操作
ap=fopen("record.txt","a");
printf("请输入你的存款金额：\n");
scanf("%f",&k);
customer[n].total=customer[n].total+k;//用原来的余额+存入的金额等于现有金额
strcpy(dwrecord[n].idcard,customer[n].idcard);
printf("请输入日期：\n");
scanf("%s",dwrecord[n].date);
strcpy(dwrecord[n].category,"存款");
dwrecord[n].number=k;
printf("请输入经办人：\n");
scanf("%s",&dwrecord[n].Handler);
fprintf(ap,"\n%s\t%s\t%s\t%0.2f\t%s",dwrecord[n].idcard,dwrecord[n].date,dwrecord[n].category,k,dwrecord[n].Handler);
fclose(ap);
}
else{
printf("查无此人！");
fclose(fp);
printf("按回车键继续...");
getchar();
getchar();
return;
}
fclose(fp);
fp=fopen("Customerinfo.txt","a");
for(j=0;j<total;j++){
if(j<=total-1)//最后一行不换行，不是最后一行要换行
fprintf(fp,"%s\t%s\t%s\t%s\t%s\t%0.2f\n",customer[j].idcard,customer[j].cuname,customer[j].cupwd,customer[j].cuaddr,customer[j].phone,customer[j].total);
else
fprintf(fp,"%s\t%s\t%s\t%s\t%s\t%0.2f",customer[j].idcard,customer[j].cuname,customer[j].cupwd,customer[j].cuaddr,customer[j].phone,customer[j].total);
}
fclose(fp);
printf("数据保存成功，按回车键继续...");
getchar();
getchar();
}
六、取款功能的实现
void fetch(){//取款操作
system("cls");
printf("正在进行取款操作...\n");
int i,j,flag=0,n=0,m=0;
char pwd[10];
float k;
FILE *fp,*ap;
if((fp=fopen("Customerinfo.txt","r"))==NULL){
printf("文件打开失败！\n");
return;
}
printf("请输入客户编号\n");
scanf("%s",&dwrecord[m].idcard);
for(i=0;!feof(fp);i++){//读取客户信息文件，判断所要进行取款操作的账户是否存在
fscanf(fp,"%s%s%s%s%s%f",&customer[i].idcard,&customer[i].cuname,&customer[i].cupwd,&customer[i].cuaddr,&customer[i].phone,&customer[i].total);
if(strcmp(customer[i].idcard,dwrecord[m].idcard)==0){
flag=1;
n=i;
}
}
if(flag){//找到相应的账户，进行取款操作
L1: printf("请输入密码：\n");
scanf("%s",pwd);
if(strcmp(customer[n].cupwd,pwd)==0){
printf("请输入你的取款金额：\n");
scanf("%f",&k);
if(k>customer[n].total){
printf("您的余额不足！\n");
Sleep(1000);
}
else{
ap=fopen("record.txt","a");
customer[n].total=customer[n].total-k;//用原来的余额-取出的金额等于现有金额
strcpy(dwrecord[n].idcard,customer[n].idcard);
printf("请输入日期：\n");
scanf("%s",dwrecord[n].date);
strcpy(dwrecord[n].category,"取款");
dwrecord[n].number=k;
printf("请输入经办人：\n");
scanf("%s",&dwrecord[n].Handler);
fprintf(ap,"%s\t%s\t%s\t%0.2f\t%s\n",dwrecord[n].idcard,dwrecord[n].date,dwrecord[n].category,k,dwrecord[n].Handler);
fclose(ap);
}
}
else{
num++;
if(num<3){
printf("密码错误，请重新输入！\n");
Sleep(2000);
goto L1;
}
return;
}
}
else{
printf("查无此人！");
Sleep(2000);
return;
}
fclose(fp);
fp=fopen("Customerinfo.txt","w");
for(j=0;j<=i-1;j++){
if(j<i-1)//最后一行不换行，不是最后一行要换行
fprintf(fp,"%s\t%s\t%s\t%s\t%s\t%0.2f\n",customer[j].idcard,customer[j].cuname,customer[j].cupwd,customer[j].cuaddr,customer[j].phone,customer[j].total);
else
fprintf(fp,"%s\t%s\t%s\t%s\t%s\t%0.2f",customer[j].idcard,customer[j].cuname,customer[j].cupwd,customer[j].cuaddr,customer[j].phone,customer[j].total);
}
fclose(fp);
printf("取款成功，欢迎再次光临，按回车键继续...");
getchar();
getchar();
}
七、存款记录查询功能的实现
void SearchDeposit(){//存款查询
char id[10],name[20];
int i,k=0,flag=0;
FILE *fp,*ap;
if((fp=fopen("record.txt","r"))==NULL){
printf("文件打开失败！\n");
return;
}
if((ap=fopen("Customerinfo.txt","r"))==NULL){
printf("文件打开失败！\n");
return;
}
printf("查询存款信息，请输入查询方式（1 按账号查询/2 按姓名查询）：");
scanf("%d",&k);
while(k<1||k>2){
printf("你输入的功能有错，请重新输入你要的查询功能(1-2)");
scanf("%d",&k);
}
if(k==1){
printf("请输入客户编号：\n");
scanf("%s",id);
printf("编号\t日期\t类别\t存入金额\t经办人\n");
for(i=0;feof(fp);i++){//读取存款记录文件，判断所要查询的账号的存款记录。
fscanf(fp,"%s%s%s%f%s",&dwrecord[i].idcard,&dwrecord[i].date,&dwrecord[i].category,&dwrecord[i].number,&dwrecord[i].Handler);
if((strcmp(dwrecord[i].idcard,id)==0)&&(strcmp(dwrecord[i].category,"存款")==0)){
printf("%s\t%s\t%s\t%0.2f\t\t%s\n",dwrecord[i].idcard,dwrecord[i].date,dwrecord[i].category,dwrecord[i].number,dwrecord[i].Handler);
flag=1;
}
}
if(!flag){
printf("该账号不存在或没有存款记录！\n");
fclose(fp);
printf("按回车键继续...");
getchar();
getchar();
return;
}
}
if(k==2){
printf("请输入客户姓名：\n");
scanf("%s",name);
printf("编号\t日期\t类别\t存入金额\t经办人\n");
for(i=0;feof(ap);i++){//读取客户信息文件，根据客户姓名查找相应的账号，判断所要进行查询操作的账号是否存在。
fscanf(ap,"%s%s%s%s%s%f",&customer[i].idcard,&customer[i].cuname,&customer[i].cupwd,&customer[i].cuaddr,&customer[i].phone,&customer[i].total);
if((strcmp(customer[i].cuname,name)==0)){
strcpy(id,customer[i].idcard);
break;
}
}
for(i=0;feof(fp);i++){//读取客户信息文件，根据客户姓名查找相应的账号，判断所要进行查询操作的账号是否存在。
fscanf(fp,"%s%s%s%f%s",&dwrecord[i].idcard,&dwrecord[i].date,&dwrecord[i].category,&dwrecord[i].number,&dwrecord[i].Handler);
if((strcmp(dwrecord[i].idcard,id)==0)&&(strcmp(dwrecord[i].category,"存款")==0)){
printf("%s\t%s\t%s\t%0.2f\t\t%s\n",dwrecord[i].idcard,dwrecord[i].date,dwrecord[i].category,dwrecord[i].number,dwrecord[i].Handler);
flag=1;
}
}
if(!flag){
printf("该账号不存在或没有存款记录！\n");
fclose(fp);
printf("按回车键继续...");
getchar();
getchar();
return;
}
}
fclose(fp);
fclose(ap);
printf("按回车键继续...");
getchar();
getchar();
}
八、取款记录查询功能的实现
void SearchFetch(){//取款查询
char id[10],name[20];
int i,k=0,flag=0;
FILE *fp,*ap;
if((fp=fopen("record.txt","r"))==NULL){
printf("文件打开失败！\n");
return;
}
if((ap=fopen("Customerinfo.txt","r"))==NULL){
printf("文件打开失败！\n");
return;
}
printf("查询取款信息，请输入查询方式（1 按账号查询/2 按姓名查询）：");
scanf("%d",&k);
while(k<1||k>2){
printf("你输入的功能有错，请重新输入你要的查询功能(1-2)");
scanf("%d",&k);
}
if(k==1){
printf("请输入客户编号：\n");
scanf("%s",id);
printf("编号\t日期\t类别\t取出金额\t经办人\n");
for(i=0;feof(fp);i++){//读取客户信息文件，判断所要进行取款查询操作的账户的取款记录
fscanf(fp,"%s%s%s%f%s",&dwrecord[i].idcard,&dwrecord[i].date,&dwrecord[i].category,&dwrecord[i].number,&dwrecord[i].Handler);
if((strcmp(dwrecord[i].idcard,id)==0)&&(strcmp(dwrecord[i].category,"取款")==0)){
printf("%s\t%s\t%s\t%0.2f\t\t%s\n",dwrecord[i].idcard,dwrecord[i].date,dwrecord[i].category,dwrecord[i].number,dwrecord[i].Handler);
flag=1;
}
}
if(!flag){
printf("该账号不存在或没有取款记录！\n");
fclose(fp);
printf("按回车键继续...");
getchar();
getchar();
return;
}
}
if(k==2){
printf("请输入客户姓名：\n");
scanf("%s",name);
printf("编号\t日期\t类别\t取出金额\t经办人\n");
for(i=0;feof(ap);i++){//读取客户信息文件，根据客户姓名查找相应的账号，判断所要进行取款查询操作的账号是否存在。
fscanf(ap,"%s%s%s%s%s%f",&customer[i].idcard,&customer[i].cuname,&customer[i].cupwd,&customer[i].cuaddr,&customer[i].phone,&customer[i].total);
if((strcmp(customer[i].cuname,name)==0)){
strcpy(id,customer[i].idcard);
break;
}
}
for(i=0;feof(fp);i++){//读取客户信息文件，根据客户姓名查找相应的账号，判断所要进行查询操作的账号是否存在。
fscanf(fp,"%s%s%s%f%s",&dwrecord[i].idcard,&dwrecord[i].date,&dwrecord[i].category,&dwrecord[i].number,&dwrecord[i].Handler);
if((strcmp(dwrecord[i].idcard,id)==0)&&(strcmp(dwrecord[i].category,"取款")==0)){
printf("%s\t%s\t%s\t%0.2f\t\t%s\n",dwrecord[i].idcard,dwrecord[i].date,dwrecord[i].category,dwrecord[i].number,dwrecord[i].Handler);
flag=1;
}
}
if(!flag){
printf("该账号不存在或没有存款记录！\n");
fclose(fp);
printf("按回车键继续...");
getchar();
getchar();
return;
}
}
fclose(fp);
fclose(ap);
printf("按回车键继续...");
getchar();
getchar();
}
九、删除信息功能的实现
void DeleteInfo(){
FILE *fp;
int i,j,k,flag=0,total=0;
char id[10];
if((fp=fopen("Customer.txt","r"))==NULL){
printf("文件打开失败！\n");
return;
}
printf("请输入你要删除信息的客户编号：");
scanf("%s",id);
for(i=0;!feof(fp);i++){
total++;
fscanf(fp,"%s%s%s%s%s%f",&customer[i].idcard,&customer[i].cuname,&customer[i].cupwd,&customer[i].cuaddr,&customer[i].phone,&customer[i].total);
if(strcmp(customer[i].idcard,id)==0){
k=i;
flag=1;
}
}
if(!flag){
printf("你输入的客户编号有误，请正确输入你要删除的客户！\n");
fclose(fp);
printf("按回车键继续...");
getchar();
getchar();
return;
}
for(j=k;j<total;j++){
strcpy(customer[j].idcard,customer[j+1].idcard);
strcpy(customer[j].cuname,customer[j+1].cuname);
strcpy(customer[j].cupwd,customer[j+1].cupwd);
strcpy(customer[j].cuaddr,customer[j+1].cuaddr);
strcpy(customer[j].phone,customer[j+1].phone);
customer[j].total=customer[j+1].total;
}
fclose(fp);
fp=fopen("Customer.txt","w");
for(j=0;j<total-1;j++){
if(j!=total-2)
fprintf(fp,"%s\t%s\t%s\t%s\t%s\t%0.2f\n",customer[j].idcard,customer[j].cuname,customer[j].cupwd,customer[j].cuaddr,customer[j].phone,customer[j].total);
else
fprintf(fp,"%s\t%s\t%s\t%s\t%s\t%0.2f",customer[j].idcard,customer[j].cuname,customer[j].cupwd,customer[j].cuaddr,customer[j].phone,customer[j].total);
}
printf("删除客户信息成功， 按回车键继续...！\n");
fclose(fp);
getchar();
getchar();
}
十、显示信息功能的实现
void ShowCuInfo(){
int i;
FILE *ap;
if((ap=fopen("Customerinfo.txt","r"))==NULL){
printf("文件打开失败！\n");
return;
}
printf("编号\t姓名\t客户密码\t客户地址\t客户电话\t金额\n");
for(i=0;!feof(ap);i++){//读取客户信息文件，判断所要进行操作的账号是否存在
fscanf(ap,"%s%s%s%s%s%f",&customer[i].idcard,&customer[i].cuname,&customer[i].cupwd,&customer[i].cuaddr,&customer[i].phone,&customer[i].total);
printf("%s\t%s\t%s\t\t%s\t\t%s\t%0.2f\n",customer[i].idcard,customer[i].cuname,customer[i].cupwd,customer[i].cuaddr,customer[i].phone,customer[i].total);
}
fclose(ap);
printf("按回车键继续...");
getchar();
getchar();
}
十一、客户存取款信息排序功能的实现
void SortCustomer(){
FILE *ap;
int i,j,n,k,flag=0,total=0;
char id[10];
if((ap=fopen("Customerinfo.txt","r"))==NULL){
printf("文件打开失败！\n");
return;
}
struct Customerinfo temp;
printf("编号\t姓名\t客户密码\t客户地址\t客户电话\t金额\n");
for(i=0;!feof(ap);i++){
total++;
fscanf(ap,"%s%s%s%s%s%f",&customer[i].idcard,&customer[i].cuname,&customer[i].cupwd,&customer[i].cuaddr,&customer[i].phone,&customer[i].total);
}
for(n=0;n<total;n++){
for(j=total-1;j>=n;j--){
if(customer[j].total<customer[j+1].total){
{
strcpy(temp.idcard,customer[j].idcard);
strcpy(temp.cuname,customer[j].cuname);
strcpy(temp.cupwd,customer[j].cupwd);
strcpy(temp.cuaddr,customer[j].cuaddr);
strcpy(temp.phone,customer[j].phone);
temp.total=customer[j].total;
}
{
strcpy(customer[j].idcard,customer[j+1].idcard);
strcpy(customer[j].cuname,customer[j+1].cuname);
strcpy(customer[j].cupwd,customer[j+1].cupwd);
strcpy(customer[j].cuaddr,customer[j+1].cuaddr);
strcpy(customer[j].phone,customer[j+1].phone);
customer[j].total=customer[j+1].total;
}
{
strcpy(customer[j+1].idcard,temp.idcard);
strcpy(customer[j+1].cuname,temp.cuname);
strcpy(customer[j+1].cupwd,temp.cupwd);
strcpy(customer[j+1].cuaddr,temp.cuaddr);
strcpy(customer[j+1].phone,temp.phone);
customer[j+1].total=temp.total;
}
}
}
for(i=0;i<total;i++){
printf("%s\t%s\t%s\t%s\t%s\t%f\n",customer[j].idcard,customer[j].cuname,customer[j].cupwd,customer[j].cuaddr,customer[j].phone,customer[j].total);
}
}
fclose(ap);
printf("按回车键继续...");
getchar();
getchar();
}
十二、修改信息功能的实现
void UpdataInfo(){
FILE *fp;
int i,j,k,flag=0,total=0,n;
char id[10],addr[30],phone[11],pwd[10];
if((fp=fopen("Customerinfo.txt","r"))==NULL){
printf("文件打开失败！\n");
return;
}
printf("请输入你要修改信息的客户编号：");
scanf("%s",id);
for(i=0;!feof(fp);i++){
total++;
fscanf(fp,"%s%s%s%s%s%f",&customer[i].idcard,&customer[i].cuname,&customer[i].cupwd,&customer[i].cuaddr,&customer[i].phone,&customer[i].total);
if(strcmp(customer[i].idcard,id)==0){
k=i;
flag=1;
}
}
if(!flag){
printf("你输入的客户编号有误，请正确输入你要修改的客户！\n");
fclose(fp);
printf("按回车键继续...");
getchar();
getchar();
return;
}
printf("请选择你要修改的信息：(1修改密码 2修改地址 3修改电话)：\n");
scanf("%d",&n);
while(n<1||n>3){
printf("你输入的功能有错，请重新输入你要的修改功能(1-2)：");
scanf("%d",&n);
}
switch(n){
case 1:{
printf("请输入旧密码：");
scanf("%s",pwd);
if(strcmp(customer[k].cupwd,pwd)==0){
printf("请输入新密码：");
scanf("%s",pwd);
strcpy(customer[k].cupwd,pwd);
printf("密码修改成功，按回车键继续...！\n");
getchar();
getchar();
}
else{
printf("旧密码不正确，按回车键继续...！\n");
getchar();
getchar();
}
break;
}
case 2:{
printf("请输入新地址：");
scanf("%s",addr);
strcpy(customer[k].cuaddr,addr);
printf("地址修改成功，按回车键继续...！\n");
getchar();
getchar();
break;
}
case 3:{
printf("请输入新电话号码：");
scanf("%s",phone);
strcpy(customer[k].phone,phone);
printf("电话修改成功，按回车键继续...！\n");
getchar();
getchar();
break;
}
}
fclose(fp);
fp=fopen("Customerinfo.txt","w");
for(j=0;j<total;j++){
if(j<total-1)
fprintf(fp,"%s\t%s\t%s\t%s\t%s\t%f\n",customer[j].idcard,customer[j].cuname,customer[j].cupwd,customer[j].cuaddr,customer[j].phone,customer[j].total);
else
fprintf(fp,"%s\t%s\t%s\t%s\t%s\t%f",customer[j].idcard,customer[j].cuname,customer[j].cupwd,customer[j].cuaddr,customer[j].phone,customer[j].total);
}
printf("修改客户信息成功，按回车键继续...！\n");
fclose(fp);
getchar();
}
十三、存取款统计功能的实现
void Statistics(){
FILE *fp;
int i,j,flag[100],total=0;
char id[10],cat[6];
system("cls");
printf("正在统计信息...\n");
if((fp=fopen("record.txt","r"))==NULL){
printf("文件打开失败!\n");
return;
}
for(i=0;!feof(fp);i++){
fscanf(fp,"%s%s%s%f%s",&dwrecord[i].idcard,&dwrecord[i].date,&dwrecord[i].category,&dwrecord[i].Handler);
total++;
flag[i]=0;
}
for(i=0;i<total;i++){
if(flag[i]==0){
strcpy(id,dwrecord[i].idcard);
strcpy(cat,dwrecord[i].category);
flag[i]=1;
for(j=i+1;j<total;j++){
if((strcmp(dwrecord[j].idcard,id)==0)&&(strcmp(dwrecord[j].category,cat)==0)){
dwrecord[i].number=dwrecord[i].number+dwrecord[j].number;
flag[j]=1;
}
}
printf("账号为%s的客户共%s%0.2f元。",dwrecord[i].idcard,dwrecord[i].category,dwrecord[i].number);
printf("\n---------------------------------------------------\n");
}
}
fclose(fp);
printf("按回车键继续...");
getchar();
getchar();
}
十四、主函数
int main(int argc, char** argv) {//主函数
char un[10],pass[10];
int k=0;
L: printf("欢迎使用银行存取款系统，请输入用户名和密码登录系统！\n");
printf("用户名：");
scanf("%s",un);
printf("密码：");
scanf("%s",pass);
if(SystemLogin(un,pass)==1){
printf("用户名和密码正确，正在登录系统...\n");
Sleep(2000);
system("cls");
k=display();
while(k){
switch(k){
case 1:insertcustomer();break;
case 2:deposit(); break;
case 3:fetch(); break;
case 4:SearchDeposit(); break;
case 5:SearchFetch(); break;
case 6:ShowCuInfo(); break;
case 7:DeleteInfo(); break;
case 8:UpdataInfo(); break;
case 9:Statistics(); break;
case 10:SortCustomer(); break;
}
system("cls");
k=display();
}
}
else{
printf("用户名或密码错误，请重新输入!\n");
Sleep(2000);
system("cls");
num++;
if(num<3)
goto L;
}
}
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