学完C/C++，做的一个练习项目，使用C++的类定义对象，实现了一个银行的管理系统。功能有登录、注册、存取钱、转账和查询。这些小功能按照模块化编程完场功能 。
直接写代码。声明：这是在vs2015环境下编写。
#include<iostream>
#include<fstream>
#include<string>
#include<time.h>
#include<windows.h>
using namespace std;
class user
{
private:
long money;
string name;
string Account;
long password;
string phone;
string identity;
public:
user()
{
}
user(string a, string b, long c, string d, string e, long f) :name(a), Account(b), password(c), phone(d), identity(e)
{
money = f;
}
~user() {};
string getname()
{
return name;
}
string getAccount()
{
return Account;
}
long getpassword()
{
return password;
}
string getphone()
{
return phone;
}
string getidentity()
{
return identity;
}
long getmoney()
{
return money;
}
long changemoney(long a)
{
money = a;
return money;
}
void set()
{
name = "";
Account = "";
password = 0;
phone = "";
identity = "";
money = 0;
}
};
user obj_cur,obj_sec;
int Write_File(user &obj)
{
//打开文件
fstream fio;
fio.open("F://Register/Register.txt", ios::in | ios::out | ios::binary);
if (!fio)
{
cout << " Open File Failed!" << endl;
return -1;
}
fio.seekg(0, ios::beg);
int count = 0;
while (fio.read((char *)&obj_sec, sizeof(obj_sec)))
{
if ((obj.getAccount() == obj_sec.getAccount()))
{
fio.seekp(count*sizeof(obj_sec), ios::beg);
fio.write((char*)&obj, sizeof(obj));
fio.close();
return 0;
}
count++;
}
return 0;
}
int Query_Clit()
{
//打开文件
string accout;
ifstream file;
file.open("F://Register/Register.txt", ios::in | ios::binary);
if (!file)
{
cout << "file open error" << endl;
return -1;
}
//读文件
file.seekg(0, ios::beg);
cout << "请输入需要查询的账户名" << endl;
cout << "account:";
cin >> accout;
while (file.read((char *)&obj_sec, sizeof(obj_sec)))
{
if (obj_sec.getAccount() == accout)
{
if (obj_cur.getname() == obj_sec.getname())
{
cout << "name=" << obj_sec.getname() << endl;
cout << "Account=" << obj_sec.getAccount() << endl;
cout << "password=" << obj_sec.getpassword() << endl;
cout << "phone=" << obj_sec.getphone() << endl;
cout << "identity=" << obj_sec.getidentity() << endl;
cout << "money=" << obj_sec.getmoney() << endl;
cout << "是否需要打印用户账单,请选择输入‘是’或者‘否’。" << endl;
string bill;
cin >> bill;
if (bill == "是")
{
string mypath = "F://Account/";
mypath = mypath + obj_sec.getname() + ".txt";
ifstream file_b;
file_b.open(mypath, ios::in);
if (!file_b)
{
cout << "该用户暂时没有账单记录" << endl;
return -1;
}
//读文件
cout << "账单如下：" << endl;
char buf;
file_b.seekg(0, ios::beg);
while (file_b.eof() == 0)
{
file_b.get(buf);
cout << buf;
}
file_b.close();
}
file.close();
return 0;
}
else
{
long passwd;
for (int i = 5; i > 0; i--)
{
cout << "请输入密码" << endl;
cout << "password:";
cin >> passwd;
if (obj_sec.getpassword() == passwd)
{
cout << "name=" << obj_sec.getname() << endl;
cout << "Account" << obj_sec.getAccount() << endl;
cout << "password=" << obj_sec.getpassword() << endl;
cout << "phone=" << obj_sec.getphone() << endl;
cout << "identity=" << obj_sec.getidentity() << endl;
cout << "money=" << obj_sec.getmoney() << endl;
cout << "是否需要打印用户账单,请选择输入‘是’或者‘否’。" << endl;
string bill;
cin >> bill;
if (bill == "是")
{
string mypath = "F://Account/";
mypath = mypath + obj_sec.getname() + ".txt";
ifstream file_b;
file_b.open(mypath, ios::in);
if (!file_b)
{
cout << "file open error" << endl;
return -1;
}
//读文件
cout << "账单如下：" << endl;
char buf;
file_b.seekg(0, ios::beg);
while (file_b.eof() == 0)
{
file_b.get(buf);
cout << buf;
}
file_b.close();
}
file.close();
break;
}
else
{
cout << "密码错误，还可以重新输入" << i - 1 << "次密码." << endl;
if (i - 1 <= 0)
{
Sleep(3000);
i = 6;
}
continue;
}
}
return 0;
}
}
}
cout << "用户不存在" << endl;
file.close();
return 0;
}
int Withdrawal()
{
long money;
long mima;
while (1)
{
cout << "余额" << obj_cur.getmoney() << endl;
cout << "请输入取款金额(输入0退出):" << endl;
cin >> money;
if (0 == money)
{
break;
}
if (money > obj_cur.getmoney()) //余额
{
cout << "余额不足" << endl;
continue;
}
while (1)
{
cout << "请输入密码:" << endl;
cin >> mima;
if (mima != obj_cur.getpassword())
{
cout << "密码错误" << endl;
continue;
}
else break;
}
obj_cur.changemoney(obj_cur.getmoney() - money);
Write_File(obj_cur);
cout << "存款成功" << endl;
time_t tt = time(NULL);
struct tm t;
localtime_s(&t, &tt);
string mypath = "F://Account/";
mypath = mypath + obj_cur.getname() + ".txt";
ofstream outFile(mypath, ios_base::out | ios_base::app);
if (!outFile)
{
cout << "File open error" << endl;
}
outFile << "取款时间:" << t.tm_year + 1900 << "-" << t.tm_mon + 1 << "-" << t.tm_mday << " " << t.tm_hour << ":" << t.tm_min << ":" << t.tm_sec << " " << endl;
outFile << "取款：" << money << " " << "余额:" << obj_cur.getmoney() << endl;
outFile.close();
}
return 0;
}
int Deposit()
{
long money;
long passwd;
while (1)
{
cout << "余额" << obj_cur.getmoney() << endl;
cout << "请输入存款金额(输入0退出):" << endl;
cin >> money;
if (0 == money)
{
break;
}
while (1)
{
cout << "请输入密码:" << endl;
cin >> passwd;
if (passwd != obj_cur.getpassword())
{
cout << "密码错误，请重新输入" << endl;
continue;
}
else
{
break;
}
}
obj_cur.changemoney(obj_cur.getmoney() + money);
Write_File(obj_cur);
cout << "存钱成功" << endl;
time_t tt = time(NULL);
struct tm t;
localtime_s(&t, &tt);
string mypath = "F://Account/";
mypath = mypath + obj_cur.getname() + ".txt";
ofstream outFile(mypath, ios_base::out | ios_base::app);
if (!outFile)
{
cout << "File open error" << endl;
}
outFile << "存款时间:" << t.tm_year + 1900 << "-" << t.tm_mon + 1 << "-" << t.tm_mday << " " << t.tm_hour << ":" << t.tm_min << ":" << t.tm_sec << " " << endl;
outFile << "存款：" << money << " " << "余额:" << obj_cur.getmoney() << endl;
outFile.close();
}
return 0;
}
int Register()//注册
{
string name;
string Account;
long password;
string phone;
string identity;
long money;
cout << "请输入您的姓名：";
cin >> name;
cout << "请输入用户名：";
cin >> Account;
while (1)
{
cout << "请输入六位数字密码：";
cin >> password;
if (password < 100000 || password>999999)
{
cout << "密码格式有有误,请重新输入六位密码" << endl;
continue;
}
break;
}
cout << "请输入您的电话号码：";
cin >> phone;
cout << "请输入身份ID：";
cin >> identity;
cout << "输入存入金额：";
cin >> money;
user obj(name, Account, password, phone, identity, money);
ofstream fout("F://Register/Register.txt", ios::app | ios::binary);
if (!fout)
{
cout << " Open File Failed!" << endl;
return -1;
}
fout.write((char*)&obj, sizeof(obj));
time_t tt = time(NULL);
struct tm t;
localtime_s(&t, &tt);
string mypath = "F://Account/";
mypath = mypath + obj.getname() + ".txt";
ofstream outFile(mypath, ios_base::out | ios_base::app);
if (!outFile)
{
cout << "File open error" << endl;
}
cout << "注册时间:"<<t.tm_year + 1900 << "-" << t.tm_mon + 1 << "-" << t.tm_mday << " " << t.tm_hour << ":" << t.tm_min << ":" << t.tm_sec << " ";
outFile << "注册时间:" << t.tm_year + 1900 << "-" << t.tm_mon + 1 << "-" << t.tm_mday << " " << t.tm_hour << ":" << t.tm_min << ":" << t.tm_sec << " "<<"初始金额：" << obj.getmoney() << endl;
outFile.close();
cout << "注册成功" << endl;
fout.close();
return 0;
}
int Transfer_Money()
{
string accout;
//打开文件
ifstream file;
file.open("F://Register/Register.txt", ios::in | ios::binary);
if (!file)
{
cout << "Open File Failed!" << endl;
return -1;
}
//读文件
file.seekg(0, ios::beg);
cout << "用户余额:" << obj_cur.getmoney() << endl;
cout << "请输入对方账户:" << endl;
cin >> accout;
while (file.read((char *)&obj_sec, sizeof(obj_sec)))
{
if ((obj_sec.getAccount() == accout))
{
user obj = obj_sec;
if ((obj_sec.getAccount() == obj_cur.getAccount()))
{
cout << "账户不能是当前用户" << endl;
return -1;
}
long money;
while (1)
{
long mima;
cout << "输入转账金额" << endl;
cin >> money;
if (obj_cur.getmoney() < money)
{
cout << "余额不足，不能转账" << endl;
cout << "余额：" << obj_cur.getmoney() << endl;
}
while (1)
{
cout << "请输入密码:" << endl;
cin >> mima;
if (mima != obj_sec.getpassword())
{
cout << "密码错误" << endl;
continue;
}
break;
}
cout << "余额;" << obj_cur.changemoney(obj_cur.getmoney() - money) << endl;
obj.changemoney(obj.getmoney() + money);
Write_File(obj);
Write_File(obj_cur);
cout << "转账成功,请及时查询" << endl;
time_t tt = time(NULL);
struct tm t;
localtime_s(&t, &tt);
string mypath = "F://Account/";
mypath = mypath + obj_cur.getname() + ".txt";
ofstream outFile(mypath, ios_base::out | ios_base::app);
if (!outFile)
{
cout << "File open error" << endl;
}
outFile <<"转账时间："<< t.tm_year + 1900 << "-" << t.tm_mon + 1 << "-" << t.tm_mday << " " << t.tm_hour << ":" << t.tm_min << ":" << t.tm_sec << " " ;
outFile << "转账给" << obj.getAccount() << money << " " << "余额:" << obj_cur.getmoney() << endl;
outFile.close();
string mypath1 = "F://Account/";
mypath1 = mypath1 + obj.getname() + ".txt";
ofstream outFile1(mypath1, ios_base::out | ios_base::app);
if (!outFile1)
{
cout << "File open error" << endl;
}
outFile1 << "转账时间：" << t.tm_year + 1900 << "-" << t.tm_mon + 1 << "-" << t.tm_mday << " " << t.tm_hour << ":" << t.tm_min << ":" << t.tm_sec << " ";
outFile1 << "收到"<< obj_cur.getAccount() <<"转账：" << money << " " << "余额:" << obj.getmoney() << endl;
outFile1.close();
break;
}
}
}
return 0;
}
int Login(string &accout, long &passwd, user &obj)
{
//打开文件
ifstream file;
file.open("F://Register/Register.txt", ios::in | ios::binary);
if (!file)
{
cout << "Login Failed!" << endl;
obj.set();
return -1;
}
//读文件
file.seekg(0, ios::beg);
cout << "请输入用户名" << endl;
cout << "account:";
cin >> accout;
while (file.read((char *)&obj, sizeof(obj)))
{
if ((obj.getAccount() == accout))
{
for (int i = 5; i > 0; i--)
{
cout << "请输入密码" << endl;
cout << "password:";
cin >> passwd;
if (obj.getpassword() == passwd)
{
cout << "登录成功" << endl;
file.close();
return 0;
}
else
{
cout << "密码错误，还可以重新输入" << i - 1 << "次密码." << endl;
if (i - 1 <= 0)
{
cout << "输入密码次数频繁，十秒后可以重新输入！！！！！" << endl;
cout << "Waiting--------------";
Sleep(10000);
i = 6;
}
continue;
}
}
}
}
cout << "用户不存在，请注册一个新用户" << endl;
file.close();
obj.set();
return 0;
}
int Logout(user &obj)
{
user obj_sec;
ifstream ifile;
ifile.open("F://Register/Register.txt", ios::in | ios::binary);
if (!ifile)
{
cout << "file open error" << endl;
return -1;
}
ofstream ofile;
ofile.open("F://temp.txt", ios::out | ios::binary);
if (!ofile)
{
cout << "file open error" << endl;
return -1;
}
//读文件
ifile.seekg(0, ios::beg);
while (ifile.read((char *)&obj_sec, sizeof(obj_sec)))
{
if (obj.getAccount() == obj_sec.getAccount())
{
continue;
}
ofile.seekp(0, ios::beg);
ofile.write((char *)&obj_sec, sizeof(obj_sec)); //写文件
}
ifile.close();
ofile.close();
ofstream ofs("F://Register/Register.txt");//清空文件
ofs.close();
ofstream ofile_r;
ofile_r.open("F://Register/Register.txt", ios::out | ios::binary);
if (!ofile_r)
{
cout << "file open error" << endl;
return -1;
}
ifstream ifile_r;
ifile_r.open("F://temp.txt", ios::in | ios::binary);
if (!ifile_r)
{
cout << "file open error" << endl;
return -1;
}
//读文件
ifile_r.seekg(0, ios::beg);
while (ifile_r.read((char *)&obj_sec, sizeof(obj_sec)))
{
ofile_r.seekp(0, ios::beg);
ofile_r.write((char *)&obj_sec, sizeof(obj_sec));
}
ifile_r.close();
ofile_r.close();
ofstream ofs1("F://temp.txt");//清空文件
ofs1.close();
cout << "注销成功" << endl;
return 0;
}
int Logout1(user &obj)
{
// 打开文件
fstream fio;
fio.open("F://Register/Register.txt", ios::in | ios::out | ios::binary);
if (!fio)
{
cout << " Open File Failed!" << endl;
return -1;
}
fio.seekg(0, ios::beg);
int count = 0;
char buf[sizeof(obj)] = {0};
while (fio.read((char *)&obj_sec, sizeof(obj_sec)))
{
if ((obj.getAccount() == obj_sec.getAccount()))
{
fio.seekp(count*sizeof(obj_sec), ios::beg);
fio.write(buf, sizeof(obj));
fio.close();
cout << "注销成功" << endl;
return 0;
}
count++;
}
cout << "注销成功" << endl;
return 0;
}
int Query_Admi()
{
//打开文件
string accout;
long passwd;
cout << "请输入需要查询的账户名" << endl;
cout << "account:";
cin >> accout;
cout << "请输入密码" << endl;
cout << "password:";
cin >> passwd;
fstream file;
file.open("F://Register/Register.txt", ios::in | ios::binary);
if (!file)
{
cout << "file open error" << endl;
return -1;
}
//读文件
file.seekg(0, ios::beg);
while (file.read((char *)&obj_sec, sizeof(obj_sec)))
{
if (obj_sec.getAccount() == accout)
{
if (obj_sec.getpassword() == passwd)
{
cout << "name=" << obj_sec.getname() << endl;
cout << "Account" << obj_sec.getAccount() << endl;
cout << "password=" << obj_sec.getpassword() << endl;
cout << "phone=" << obj_sec.getphone() << endl;
cout << "identity=" << obj_sec.getidentity() << endl;
cout << "money=" << obj_sec.getmoney() << endl;
file.close();
return 0;
}
}
else
{
cout << "用户不存在，请注册一个新用户" << endl;
file.close();
return -1;
}
}
file.close();
return 0;
}
/**********************************************************************************
主函数
*******************************************************************************************/
#include"bank.h"
int main()
{
string account=" ";
long password=0, temp;
while (1)
{
cout << "1----->Login（登录） 2----->Sign In（注册）" << endl;
cin >> temp;
if (temp == 1)
{
while (1)
{
Login(account,password, obj_cur);
if (obj_cur.getAccount() == account )
{
int option;
while (1)
{
cout << "0----->Exit(退出)" << endl;
cout << "1----->Query（查询）" << endl;
cout << "2----->Logout（注销）" << endl;
cout << "3----->Deposit（存款）" << endl;
cout << "4----->Withdrawal（取款）" << endl;
cout << "5----->Transfer Accounts（转账）" << endl;
cout << "请选择所需要的服务:";
cin >> option;
switch (option)
{
case 0:
option = 0;
break;
case 1:
Query_Clit();
break;
case 2:
if (Logout(obj_cur) == 0) { option = 0; break; }
return 0;
case 3:
Deposit();
break;
case 4:
Withdrawal();
break;
case 5:
Transfer_Money();
default:
break;
}
if (option == 0)
{
break;
}
}
break;
}
else
{
break;
}
}
}
else
{
Register();
}
}
return 0;
}