unit5.~pas

银行管理系统上机实验。 具有帐户添加

unit Unit5;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ComCtrls, StdCtrls, DB, ADODB;

type
  TForm5 = class(TForm)
    PageControl1: TPageControl;
    TabSheet1: TTabSheet;
    TabSheet2: TTabSheet;
    TabSheet3: TTabSheet;
    TabSheet4: TTabSheet;
    TabSheet5: TTabSheet;
    TabSheet6: TTabSheet;
    Label1: TLabel;
    Edit1: TEdit;
    Label2: TLabel;
    Edit2: TEdit;
    Edit3: TEdit;
    Button1: TButton;
    Label4: TLabel;
    Edit4: TEdit;
    Label5: TLabel;
    Edit5: TEdit;
    Label6: TLabel;
    Edit6: TEdit;
    Button2: TButton;
    Label3: TLabel;
    ADOConnection1: TADOConnection;
    ADOQuery1: TADOQuery;
    DataSource1: TDataSource;
    Label7: TLabel;
    Label9: TLabel;
    Label10: TLabel;
    Edit7: TEdit;
    Edit8: TEdit;
    Button3: TButton;
    Label13: TLabel;
    Label14: TLabel;
    Label15: TLabel;
    Label16: TLabel;
    Edit11: TEdit;
    Edit12: TEdit;
    Edit13: TEdit;
    Edit14: TEdit;
    Button5: TButton;
    Label17: TLabel;
    Edit15: TEdit;
    Label18: TLabel;
    Edit16: TEdit;
    Label19: TLabel;
    Edit17: TEdit;
    Button6: TButton;
    Label20: TLabel;
    Edit18: TEdit;
    Edit19: TEdit;
    Label21: TLabel;
    Edit20: TEdit;
    Label22: TLabel;
    Button7: TButton;
    Button8: TButton;
    Button9: TButton;
    Button10: TButton;
    Button11: TButton;
    Button12: TButton;
    Button13: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button5Click(Sender: TObject);
   // procedure Button4Click(Sender: TObject);
    procedure Button9Click(Sender: TObject);
    procedure Button11Click(Sender: TObject);
    procedure Button8Click(Sender: TObject);
    procedure Button12Click(Sender: TObject);
    procedure Button10Click(Sender: TObject);
    procedure Button13Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form5: TForm5;
  aa,bb,cc:string;
implementation

{$R *.dfm}

procedure TForm5.Button1Click(Sender: TObject);    
begin
adoquery1.Close;
adoquery1.SQL.Clear;
adoquery1.SQL.Add('select * from account where account_number=:num');
adoquery1.Parameters[0].Value:=edit1.Text;
adoquery1.Open;
bb:=adoquery1.fieldbyname('pasword').asstring;
IF strtoint(edit2.Text)=strtoint(bb)
THEN begin
adoquery1.Close;
adoquery1.SQL.Clear;
adoquery1.SQL.Add('update account set balance=balance+:amount where account_number=:number');
adoquery1.Parameters[0].Value:=strtofloat(edit3.Text);
adoquery1.Parameters[1].Value:=edit1.Text;
adoquery1.execsql;
adoquery1.Close;
adoquery1.SQL.Clear;
adoquery1.SQL.Add('select * from account where account_number=:numb');
adoquery1.Parameters[0].Value:=edit1.Text;
adoquery1.open;
aa:=adoquery1.fieldbyname('balance').AsString;
showmessage('你存款成功！'+#13+'余额为:'+aa);
  end
  else
  ShowMessage('卡号或密码错误！');

end;

procedure TForm5.Button3Click(Sender: TObject);
begin
  adoquery1.Close;
  adoquery1.SQL.Clear;
  adoquery1.SQL.Add('select * from account where account_number=:num');
  adoquery1.Parameters[0].Value:=edit7.Text;
  adoquery1.Open;
  bb:=adoquery1.fieldbyname('pasword').asstring;
 IF strtoint(edit8.Text)=strtoint(bb)
THEN begin
  adoquery1.Close;
  adoquery1.SQL.Clear;
  adoquery1.SQL.Add('select * from account where account_number=:numb');
  adoquery1.Parameters[0].Value:=edit7.Text;
  adoquery1.open;
  aa:=adoquery1.fieldbyname('balance').AsString;
  showmessage('你余额为:'+aa);
  end
  else
  ShowMessage('卡号或密码错误！');
end;

procedure TForm5.Button2Click(Sender: TObject);
begin
adoquery1.Close;
adoquery1.SQL.Clear;
adoquery1.SQL.Add('select * from account where account_number=:num');
adoquery1.Parameters[0].Value:=edit4.Text;
adoquery1.Open;
cc:=adoquery1.fieldbyname('balance').AsString;
bb:=adoquery1.fieldbyname('pasword').asstring;
IF strtoint(edit5.Text)=strtoint(bb)
THEN begin
if strtofloat(edit6.Text)<=strtofloat(cc) then begin
  adoquery1.Close;
  adoquery1.SQL.Clear;
  adoquery1.SQL.Add('update account set balance=balance-:amount where account_number=:number');
  adoquery1.Parameters[0].Value:=strtofloat(edit6.Text);
  adoquery1.Parameters[1].Value:=edit4.Text;
  adoquery1.execsql;
  adoquery1.Close;
  adoquery1.SQL.Clear;
  adoquery1.SQL.Add('select * from account where account_number=:numb');
  adoquery1.Parameters[0].Value:=edit4.Text;
  adoquery1.open;
  aa:=adoquery1.fieldbyname('balance').AsString;
  showmessage('你取款成功！'+#13+'余额为:'+aa);
  end
  else showmessage('你的余额不足，不能取！');
end
else
ShowMessage('卡号或密码错误！');

end;

procedure TForm5.Button5Click(Sender: TObject);
begin
  adoquery1.Close;
  adoquery1.SQL.Clear;
  adoquery1.SQL.Add('select * from account where account_number=:num');
  adoquery1.Parameters[0].Value:=edit11.Text;
  adoquery1.Open;
  cc:=adoquery1.fieldbyname('balance').AsString;
  bb:=adoquery1.fieldbyname('pasword').asstring;
IF strtoint(edit12.Text)=strtoint(bb)
THEN begin
if strtofloat(edit14.Text)<=strtofloat(cc) then begin
  adoquery1.Close;
  adoquery1.SQL.Clear;
  adoquery1.SQL.Add('update account set balance=balance+:amount where account_number=:id');
  adoquery1.Parameters[0].Value:=strtofloat(edit14.Text);
  adoquery1.Parameters[1].Value:=edit13.Text;
  adoquery1.execsql;
  adoquery1.Close;
  adoquery1.SQL.Clear;
  adoquery1.SQL.Add('update account set balance=balance-:amount where account_number=:number');
  adoquery1.Parameters[0].Value:=strtofloat(edit14.Text);
  adoquery1.Parameters[1].Value:=edit11.Text;
  adoquery1.execsql;
  showmessage('转帐成功！');
  end
  else showmessage('你的余额不足，不能转帐！');
  end
  else
  ShowMessage('卡号或密码错误！');
end;


procedure TForm5.Button9Click(Sender: TObject);
begin
Edit4.Text:='';
Edit5.Text:='';
Edit6.Text:='';
end;

procedure TForm5.Button11Click(Sender: TObject);
begin
Edit18.Text:='';
Edit19.Text:='';
Edit20.Text:='';
end;

procedure TForm5.Button8Click(Sender: TObject);
begin
Edit1.Text:='';
Edit2.Text:='';
Edit3.Text:='';
end;

procedure TForm5.Button12Click(Sender: TObject);
begin
close;
end;

procedure TForm5.Button10Click(Sender: TObject);
begin
Edit15.Text:='';
Edit16.Text:='';
Edit17.Text:='';
end;

procedure TForm5.Button13Click(Sender: TObject);
begin
Edit11.Text:='';
Edit12.Text:='';
Edit13.Text:='';
Edit14.Text:='';
end;

end.