C++银行系统：开户、存款、取款、转账、挂失等功能实现

#include #include #include #include using namespace std; class Bank; void menu(Bank &); class Account { private: string name; //户名 string ID; //账号 string mima; //密码 double yue; //余额 bool isLost=false;//挂失功能 public: string record=""; Account(string i,string n,double y,string m) { ID =i; name =n; yue =y; mima =m; } string getID() { return ID; } string getMi() { return mima; } //挂失 void setLost(bool state) { isLost=state; } bool getLost() { return isLost; } void showInfo() { cout << "储户账号:" << ID << endl; cout << "储户姓名:" << name << endl; cout << "储户余额" << yue << endl; cout"历史交易记录："<<endl; cout<<record; } void saving(double a) { yue =yue +a; record=record+"save:\n"; } bool qukuan(double a) { if(yue <a) { cout"余额不足"<<endl; return 0; } else { yue -= a; cout << "取款成功" << endl; record=record+"get:\n"; return 1; } } void transfer(double a) { yue -= a; cout << "转账成功" << endl; record=record+"transfer:\n"; } }; class Bank { private: int accountNumber; Account *account[100]; //用户个数上限 public: Bank() { accountNumber =0; } void createaccount() { //实现开户功能 string ID,name,mima; double yue; char choice; here: cout"请输入您的账号"<<endl; cin>>ID; cout<<endl; //检查账户是否已存在 for(int i = 0; i<accountNumber; i++) { if(account[i]->getID()==ID) { cout"该账户已存在，请重新输入！"<<endl; goto here; } } cout"请输入您的用户名"<<endl; cin>>name; cout"请输入您的密码"<<endl; cin>>mima; cout"您是否要预存款?(Y/N)"<<endl; cin>>choice; if(choice=='Y'||choice=='y') { cout"- 存入金额 : "; cin>>yue; } else yue=0; Account *a=new Account(ID,name,yue,mima); //传送用户数据 account[accountNumber++]=a; cout <<"当前已有储户"<<accountNumber<< endl; cout"创建成功"<<endl; } void deleteaccount() { //实现销户功能 int i; string id,m; cout"请输入您的账号\n"; cin>>id; cout"请输入您的密码\n"; cin>>m; cout"请问您是否确认销户？(Y/N)"; char thisChoice; cin>> thisChoice; if(thisChoice!='Y' && thisChoice!='y') return; cout <<"您要注销的账户为："<<id<< endl; for(i = 0; i<accountNumber; i++) { //删除用户 if(account[i]->getID()==id&&account[i]->getMi()==m) { Account * temp= account[i]; account[i]=account[accountNumber-1]; account[accountNumber-1]=temp; delete account[--accountNumber]; cout"删除成功"<<endl; return; } } cout"不存在该用户或密码错误！"<<endl; } void guashi() {//实现挂失功能 int i; string id,m; cout"请输入您的账号\n"; cin>>id; cout"请输入您的密码\n"; cin>>m; cout"请问您是否确认挂失？(Y/N)"; char thisChoice; cin>> thisChoice; if(thisChoice!='Y' && thisChoice!='y') return; cout <<"您要挂失的账户为："<<id<< endl; for(i = 0; i<accountNumber; i++) { //删除用户 if(account[i]->getID()==id&&account[i]->getMi()==m) { account[i]->setLost(true); cout"挂失成功"<<endl; return; } } cout"不存在该用户或密码错误！"<<endl; } void cunkuan() { //实现存款功能 double money; double yue; string id,m; int i; cout"请输入您要存入的账户"; cin>>id; cout"请输入您的密码\n"; cin>>m; cout"请输入您要存入的金额"; cin>>money; for(i =0; i<accountNumber; i++) { if(account[i]->getID()==id&&account[i]->getMi()==m) { //调用存款函数存款 account[i]->saving(money); cout"存款成功"; cout<<endl; account[i]->showInfo(); return; } } cout << "存款失败" << endl; } void quqian() { //实现取款功能 int i; string id,m; double money; cout"请输入您的账户"<<endl; cin>>id; cout"请输入您的密码"<<endl; cin>>m; cout"请输入取款金额"<<endl; cin>>money;

        for(i =0; i<accountNumber; i++) {
            //如果挂失了，是无法取款的
            if(account[i]->getID() ==id&&account[i]->getMi()==m&&!account[i]->getLost()) {
                bool rs=account[i]->qukuan(money);
                //如果取款成功
                if(rs) {
                    account[i]->showInfo();
                    return;
                } else {
                    cout"账户余额不足"<<endl;
                    return;
                }
            }
        }
        cout"失败"<<endl;
    }
    void check() { //查询
        int i;
        string id,m;
        double money;
        cout"请输入您的账户"<<endl;
        cin>>id;
        cout"请输入您的密码"<<endl;
        cin>>m;
        for(i=0; i<accountNumber; i++) {
            if(account[i]->getID()==id&&account[i]->getMi()==m) {
                account[i]->showInfo();
                return;
            }
        }
        if(i ==accountNumber) {
            cout"没找到"<<endl;
        }
    }
    void transfer() { //转账功能
        string id,m;
        double money;
        cout"请输入您的账户"<<endl;
        cin>>id;
        cout"请输入您的密码"<<endl;
        cin>>m;
        cout"请输入转账金额"<<endl;
        cin>>money;

        int i;
        for(i =0; i<accountNumber; i++) {
            //如果挂失了，是无法转账的
            if(account[i]->getID() ==id&&account[i]->getMi()==m&&!account[i]->getLost()) {
                string targetID;
                cout"请输入收款账户"<<endl;
                cin>>targetID;
                int j;
                for(j = 0; j<accountNumber; j++) {
                    if(account[j]->getID()==targetID) {
                        account[j]->transfer(money);
                        account[i]->showInfo();
                        account[j]->showInfo();
                        return;
                    }
                }
                if(j ==accountNumber) {
                    cout"收款账户不存在"<<endl;
                    return;
                }
            }
        }
        cout"失败"<<endl;
    }
    void randomTransfer() { //随机转账功能
        srand(time(0));
        int i = rand()%accountNumber;
        int j = rand()%accountNumber;
        while(j==i){
            j = rand()%accountNumber;
        }
        double money = rand()%10000+1;
        account[i]->transfer(money);
        account[j]->showInfo();
    }

}; void menu() { int m; Bank b; while(1) { system("cls"); cout"----------欢迎来到此银行-----------"<<endl; cout"----------请选择您的业务-------------"<<endl; cout"-----------1、开户-------------------"<<endl; cout"-----------2、销户-------------------"<<endl; cout"-----------3、存款-------------------"<<endl; cout"-----------4、取钱-------------------"<<endl; cout"-----------5、查询-------------------"<<endl; cout"-----------6、挂失-------------------"<<endl; cout"-----------7、转账-------------------"<<endl; cout"-----------8、随机转账----------------"<<endl; cout"-----------9、退出-------------------"<<endl; cin>>m; switch(m) { case 1: b.createaccount(); system("pause"); break; case 2: b.deleteaccount(); system("pause"); break; case 3: b.cunkuan(); system("pause"); break; case 4: b.quqian(); system("pause"); break; case 5: b.check(); system("pause"); break; case 6: b.guashi(); system("pause"); break; case 7: b.transfer(); system("pause"); break; case 8: b.randomTransfer(); system("pause"); break; case 9: return; default: cout << "输入有误，请重新输入" << endl; break; } } } int main() { menu(); return 0;