C++银行管理系统方案文档格式.docx

1、 采用文件的重新写入来实现存取款。四、程序的一些设计的技巧以及注意情况：为了使程序模块化，我们要采用多文件的开发。也就是说，为了使程序简练，把一些需要重复利用的代码写到.h 的文件里面。五、代码实现：#include stdafx.h#include mapstacksstreamstdio.hwindows.hstdlib.hfstreamvectoralgorithmWelcome_UI.hRegister_UI.hSign_UI.hSecondary_UI.husing namespace std;class Bank_Managementprivate: string new_name

2、; string pre_name; int password; double extra_money;public: void creat_user（string name, int pass）; int sign_user（string name, int pass）; double account_balance（）; void withdraw_money（）; void query_account（）; void change_password（）;Bank_Management operation1024;ofstream Rec_history（Historical record

3、s.txt, ios:in | ios:out | ios:app）;int main_ui（） printf（nn）;tt %cWelcome to use Bank Management System!%cn, 3, 3）;ttt %cCopyright by SunYu_peng!, 4, 4）;ttt%c+ + + + + + + + + + + + + + + +%cnttt+ Here is the system menu! +nttt+ +nttt+ 1.Deposit money +nttt+ 2.Withdraw money +nttt+ 3.Query balance +n

4、ttt+ 4.Historical records +nttt+ 5.Change password +nttt+ 6.Save and exit +ntt Please enter the order that you want: int order; cin order; if （order = 1） system（cls operation0.account_balance（）; else if （order = 2） operation0.withdraw_money（）; else if （order = 3） operation0.query_account（）; else if

5、（order = 4） printf（nnnn Secondary_ui（）;tAll dates have been saved in the file（Historical records.txt） Sleep（5000）; else if （order = 5） operation0.change_password（）; else if （order = 6） Rec_history The user decided to exit the system!n; return 0; elseThe user has done a wrong operation!The system exi

6、ted!void Bank_Management:creat_user（string name, int pass） new_name = name; password = pass;int Bank_Management:sign_user（string name, int pass） ifstream OpenFile（User name and password.txt string get_name; int get_pass; stack sign; stringstream n; string pass_str; n pass_str; while （OpenFile get_na

7、me get_pass） stringstream temp; string temp_str; temp temp_str; string all_str = get_name + + temp_str; sign.push（all_str）; while （sign.size（） != 0） if （name + + pass_str = sign.top（） pre_name = name; Rec_history The user : name has landed in the System. return true; else sign.pop（）; OpenFile.close（

8、）;double Bank_Management:account_balance（） Secondary_ui（）;tt Please enter the money that you want ot deposit: double _money; _money; ifstream Deposit_money（Account balance.txt map Deposit_Money; :iterator it; string temp; while （Deposit_money temp extra_money） if （temp = pre_name） extra_money = extr

9、a_money + _money; temp has deposited _money Yuann Deposit_Money.insert（pair（temp, extra_money）; Deposit_money.close（）; ofstream DepositMoney（ for （it = Deposit_Money.begin（）; it != Deposit_Money.end（）; it+） DepositMoney first tsecond extra_money = extra_money - _money;Rec_history User :has withdrawe

10、d Withdraw_Money.insert（pair Withdraw_money.close（）; ofstream WithdrawMoney（ for （it = Withdraw_Money.begin（）;= Withdraw_Money.end（）; WithdrawMoney WithdrawMoney.close（）;query_account（） ifstream Read_only（ double extra; cout extra） cout extra endl; Read_only.close（）; Rec_history change_password;ttPl

11、ease enter the new password you want: double new_pass; new_pass; pass） pass = new_pass; change_password.insert（pair（temp, pass）; ofstream res_pass（ for （it = change_password.begin（）;= change_password.end（）; res_pass The user pre_name if （order = 1） printf（tt Please enter the previous users name: cin

12、 name;tt Please enter previous users password: password; if （operation0.sign_user（name, password） = 1） system（ main_ui（ ）; else printf（tSorry,you have done a wrong operation!Please restart the system again! an Rec_history The user whose name is has failed to enter the system.n Sleep（1000）; else if （

13、order = 2） system（ register_ui（）; ofstream Cre_user; Cre_user.open（ ofstream Ini_account; Ini_account.open（tt Please enter the users quantity you want : creat_num; for （int i = 0; itt Please enter the %d-user Cre_user password Ini_account 0 The system has created a user whose name is The system has initialized s accountn Cre_user.close（）; Ini_account.close（）;tWe have saved all operations! Sleep（1000）; else if （order = 3） return 0;