Bank.h:
#ifndef BANK_H_INCLUDED #define BANK_H_INCLUDED #include<iostream> #include <cstring> using namespace std; const int upNum=2000;//系统最多容纳的用户数 class Bank; class User { public: void setUser(int acc, string nam, int pw, double bal,int sta,string id,string h); void showName(); void showBalance(string prompt);//显示剩余金额,前面加上提示词prompt bool passwordIsRight();//校验password,输入的password正确则返回true bool isNormalUser();//存款、取款、转帐等功能,须要账户处于正常姿态,处于正常状态时返回true,其它情形返回false并提示 long get_accNumber() { return account; } string get_accName() { return name; } int get_password() { return password;//定义为该形式的函数,便于Bank函数訪问其数据成员 } double get_balance() { return balance; } string get_id() { return identity; } string get_homeads() { return homeads; } int get_state() { return status; } void set_accNumber(long num) { account = num; } void set_accName(string n) { name = n; } void set_password(int p) { password = p; } void set_balance(double b) { balance = b; } void set_id(string id) { identity = id; } void set_homeads(string h) { homeads=h; } void set_state(int s) { status = s; } friend class Bank;//将Bank声明为友元类,方便其訪问数据成员 protected: int account; //账号 int password; //密码 string name; //username double balance; //账户剩余金额 string identity;//身份证号 string homeads;//家庭住址 int status; //状态 0-正常 1-挂失 2-销户 }; class Bank { public: Bank(); //開始前从文件里读数据,存在数组中 ~Bank(); //程序结束前,将数组中的数据写入到文件里 void work(); //业务驱动 void openAccount(); //开户 void cancelAccount(); //注销账户 void save(); //存款 void withdraw(); //取款 void showAccount(); //查询剩余金额 void transferAccounts(); //转账 void reportLoss(); //挂失 void cancelLoss(); //解除挂失 void updatePassword(); //更改password int getUser(); //输入账号查询用户。返回用户在对象数组中的下标 void ShowInfo();//显示日志 bool passwordIsRight(); bool isNormalUser(); string gettime();//获取系统时间 string int2str(int num);//将int型转换成string型 void SaveUserLog(int,int);//记录用户日志 private: int status; int password; int N; //实际的用户数目 User users[upNum]; //User数组
}; int pass(); //业务员登录 int chooseInMenu(); //显示菜单并由业务员选择 int inputPassword(); //返回键盘输入的password #endif // BANK_H_INCLUDED
main.cpp
#include <iostream> #include "bank.h" using namespace std; int main() { cout<<"+----------------------+ "; cout<<"+ 欢迎光临烟大银行! + "; cout<<"+----------------------+ "; Bank b; if (pass()) { b.work(); } return 0; }
Bank.cpp
#include <iostream> #include <fstream> #include <cstdlib> #include "bank.h" #include <ctype.h> using namespace std; /* 功能:用构造函数读取文件里保存的业务数据 */ Bank::Bank() { ifstream infile("account.dat",ios::in); if(!infile) { cerr<<"open error!"<<endl; exit(1); } int i=0; int acc; string nam; int pw; double bal; int sta; string id; string h; while(infile>>acc>>nam>>pw>>bal>>sta>>id>>h) { users[i].setUser(acc,nam,pw,bal,sta,id,h); i++; } N = i; infile.close(); } /* 功能:用析构函数,在退出系统时。将数据保存到文件里 */ Bank::~Bank() { ofstream outfile("account.dat",ios::out); if(!outfile) { cerr<<"open error!"<<endl; exit(1); } int i; for(i=0; i<N; i++) { outfile<<users[i].account<<" "; outfile<<users[i].name<<" "; outfile<<users[i].password<<" "; outfile<<users[i].balance<<" "; outfile<<users[i].status<<" "; outfile<<users[i].identity<<" "; outfile<<users[i].homeads<<" "; } outfile.close(); } /* 功能:办理业务 */ void Bank::work() { int iChoice;//用于选择系统功能 do { iChoice = chooseInMenu();//从菜单中获得功能代码 switch(iChoice) { case 1: openAccount();//开户 break; case 2: cancelAccount();//注销账户 break; case 3: save(); //存款 break; case 4: withdraw(); //取款 break; case 5: showAccount();//查询剩余金额 break; case 6: transferAccounts();//转账 break; case 7: reportLoss(); //挂失 break; case 8: cancelLoss();//解除挂失 break; case 9: updatePassword(); //更改password break; case 0: cout<<"欢迎再次光临!"<<endl; } } while(iChoice); } /* 功能:开户 说明:在进入系统时,在读入数据过程中,已经记录了用户数为N,在数组中相应下标为0~N-1 开户时要添加一个用户。仅仅要为下标为N的数组元素置值,并在成功之后令N++就可以。 账号由系统自己主动生成(10001+序号),保证其连续,这样在顺序添加的时候,就保证了其有序。
*/ void Bank::openAccount() { if(N==upNum) { cout<<"银行用户数已经达到上限,不能再开户"; return; } int acc; string nam; int pw; double bal; int sta; string id; string h; cout<<"正在开户"<<endl; acc=10001+N; cout<<"账号:"<<acc<<endl; cout<<"户主姓名:"; cin>>nam; int iPass1, iPass2; cout<<"password:"; iPass1=inputPassword(); cout<<"确认password:"; iPass2=inputPassword(); if(iPass1==iPass2) { pw=iPass1; sta=0; cout<<"存入金额:"; cin>>bal; cout<<"身份证号:"; cin>>id; cout<<"家庭住址:"; cin>>h; users[N].setUser(acc, nam, pw, bal, sta,id,h); N++; SaveUserLog(1,N); cout<<"成功开户!"<<endl; } else { cout<<"两次password不一致。未成功开户。"<<endl; } } /* 功能:注销账户 说明:找到账户,并将其状态改为2-注销就可以。
注销前应该检查剩余金额,应该先取款再注销 */ void Bank::cancelAccount() { int who; who = getUser();//查找到该账号在数组中相应的下标 if(who>=0) //说明id账户存在 { users[who].showName(); if(users[who].passwordIsRight()) { users[who].showBalance("剩余金额"); cout<<"确认销户(y/n)?"; if(tolower(getchar())=='y') { users[who].showBalance("销户成功。本次取款金额为"); users[who].balance=0; users[who].status=2; //状态变为注销 } else { cout<<"你取消了操作,销户失败。"<<endl; } fflush(stdin);//清除了getchar()时在键盘缓存中的遗留。以免影响兴许操作 } } } /* 功能:存款 说明:须要保证账户存在,且处于正常状态 */ void Bank::save() { int who; double money; who = getUser();//依据账号查询用户,返回用户的下标 if(who>=0)//说明id账户存在 { if(users[who].status==0) { users[who].showName(); cout<<"输入存款额:"; cin>>money; users[who].balance+=money; users[who].showBalance("存款后,您有"); } else if(users[who].status==1) { cout<<"该用户处于挂失状态,存款失败。"<<endl; } else { cout<<"该用户已经销户,存款失败。"<<endl; } } return; } /* 功能:取款 说明:须要保证账户存在,且处于正常状态,另外。剩余金额要足够取 */ void Bank::withdraw() { int who; double money; who = getUser(); if(who>=0) { if(users[who].isNormalUser()) { users[who].showName(); if(users[who].passwordIsRight()) { cout<<"输入取款额:"; cin>>money; if(money>users[who].balance) { cout<<"剩余金额不足,取款失败!
"<<endl; } else { users[who].balance-=money; users[who].showBalance("取款后,还有"); } } } } return; } /* 功能:查询账户 说明:显示账户信息 */ void Bank::showAccount() { int who; string sta[3]= {"正常","挂失","已经销户"}; who = getUser(); if(who>=0) { users[who].showName(); if(users[who].passwordIsRight()) { users[who].showBalance("剩余金额"); cout<<"状态:"<<sta[users[who].status]<<endl; } } return; } /* 功能:转账 说明:须要保证两个账户都存在,且处于正常状态,另外,转出账户的剩余金额要足够 */ void Bank::transferAccounts() { int whoout, whoin; double money; cout<<"转出自"; whoout = getUser(); if(whoout>=0) { if(users[whoout].isNormalUser()) { users[whoout].showName(); if(users[whoout].passwordIsRight()) { cout<<"输入转账金额:"; cin>>money; if(money>users[whoout].balance) { cout<<"剩余金额不足,转账失败。"<<endl; } else { cout<<"转出到"; whoin = getUser(); if(whoin>=0) { if(users[whoin].isNormalUser()) { users[whoout].balance-=money; users[whoin].balance+=money; users[whoout].showBalance("转账后,您还有"); } } } } } } return; } /* 功能:挂失账户 */ void Bank::reportLoss() { int who; who = getUser(); //依据账号查询用户,返回用户的下标 if(who>=0) //说明id账户存在 { users[who].showName(); if(users[who].passwordIsRight()) { if(users[who].status==0) { users[who].status=1; cout<<"挂失成功"<<endl; } else if(users[who].status==1) { cout<<"该账户已经处于挂失状态"<<endl; } else { cout<<"该账户已销户,不能挂失"<<endl; } } } return ; } /* 功能:解除挂失 */ void Bank::cancelLoss() { int who; who = getUser(); if(who>=0) { users[who].showName(); if(users[who].passwordIsRight()) { if(users[who].status==0) { cout<<"该账户处于正常状态,不须要解除挂失"<<endl; } else if(users[who].status==1) { users[who].status=0; cout<<"解除挂失成功"<<endl; } else { cout<<"该账户已销户,操作无效"<<endl; } } } return; } /* 功能:改动password */ void Bank::updatePassword() { int who; int iPass1, iPass2; who = getUser(); if(who>=0) { users[who].showName(); if(users[who].passwordIsRight()) { cout<<"新password:"; iPass1=inputPassword(); cout<<"确认password:"; iPass2=inputPassword(); if(iPass1==iPass2) { users[who].password=iPass1; cout<<"改动成功!"<<endl; } else { cout<<"两次输入不同,改动失败。"<<endl; } } } return; } /* 功能:输入账号查询用户,返回用户在数组中的下标 入口參数:要查询用户的账号 返回值:假设该用户存在。返回该用户在数组中的下标,否则,返回一个负数(-1) 说明: 由账号自己主动产生,使按账号有序,本模块採用二分查找 */ int Bank::getUser() { int id; cout<<"账号:"; cin>>id; int index=-1; int low=0, high=N-1, mid; while(low<=high) { mid = (low+high)/2; if(users[mid].account==id) { index=mid; break; } else if (users[mid].account>id) high=mid-1; else low=mid+1; } if (index<0) cout<<"该用户不存在。本次操作失败!"<<endl; return index; } /* 功能:下面两个函数为在使用日志生成时的验证信息调用` */ bool Bank::passwordIsRight() { int iPass; bool right = true; cout<<"输入password:"; iPass=inputPassword(); if(iPass!=password) { right = false; cout<<"输入password错误。不能继续操作!"<<endl; } return right; } bool Bank::isNormalUser() { bool normal = true; if(status!=0) { normal = false; cout<<"该账户处于"<<(status==1?"挂失":"销户")<<"状态。不能继续操作..."<<endl; } return normal; }
User.cpp
#include <iostream> #include "bank.h" using namespace std; void User::setUser(int acc, string nam, int pw, double bal,int sta,string i,string h)//构造函数 { account=acc; password=pw; name=nam; balance=bal; status=sta; identity = i; homeads = h; } void User::showName() { cout<<"户主姓名:"<<name<<endl; } void User::showBalance(string prompt) { cout<<prompt<<" "<<balance<<" 元"<<endl; } bool User::passwordIsRight() { int iPass; bool right = true; cout<<"输入password:"; iPass=inputPassword(); if(iPass!=password) { right = false; cout<<"输入password错误,不能继续操作!"<<endl; } return right; } bool User::isNormalUser() { bool normal = true; if(status!=0) { normal = false; cout<<"该账户处于"<<(status==1?"挂失":"销户")<<"状态,不能继续操作..."<<endl; } return normal; }
work.cpp
#include <iostream> #include <fstream> #include <conio.h> #include <cstdlib> #include <cstring> #include <ctype.h> #include "bank.h" using namespace std; /* 功能:验证用户password 返回值:password正确,返回1; 不能通过password验证,返回0 */ int pass() { char sNameInFile[20];//由文件里读出的业务员username char sPassInFile[20];//文件里保存的password,这一版本号中,用字符保存password ifstream infile("password.txt",ios::in); if(!infile) { cout<<"password file cannot open!"<<endl; exit(1); } infile>>sNameInFile>>sPassInFile; infile.close(); char sName[20];//业务员登录时输入的username char sPass[20];//业务员登录时输入的password char ch; int iTry=3;//进入系统时尝试的次数 int right = 0; //要返回的结果:0-不对 1-正确 do { cout<<"请输入业务员username:"; cin>>sName; cout<<"请输入password:"; int i=0; while((ch=getch())!=' ') { sPass[i++]=ch; putchar('*'); //接受不论什么字符,屏幕上仅仅显示* } sPass[i]='