unit10.pas

简单的选课系统 采用delphi书写 包含简单的管理功能以及学生 教师 管理员登陆

unit Unit10;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, Grids, DBGrids;

type
  TForm10 = class(TForm)
    GroupBox1: TGroupBox;
    Label1: TLabel;
    Edit1: TEdit;
    Label2: TLabel;
    Edit2: TEdit;
    Label3: TLabel;
    ComboBox1: TComboBox;
    Label4: TLabel;
    Edit3: TEdit;
    Label5: TLabel;
    Edit4: TEdit;
    Label6: TLabel;
    Edit5: TEdit;
    Label7: TLabel;
    Edit6: TEdit;
    Label8: TLabel;
    Edit7: TEdit;
    Label9: TLabel;
    Edit8: TEdit;
    Label10: TLabel;
    Edit9: TEdit;
    Button1: TButton;
    Button2: TButton;
    DBGrid1: TDBGrid;
    Button3: TButton;
    Label11: TLabel;
    Edit10: TEdit;
    Button4: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form10: TForm10;
  

implementation
Uses Unit6;
{$R *.dfm}

procedure TForm10.Button1Click(Sender: TObject);
begin
    with data.ADOQuery1 do
    begin
        close;
        sql.Clear;
        sql.Add('select * from 教师');
        sql.Add('order by 教师账号 ASC');
        open;
    with data.ADOQuery2 do
    begin
        close;
        sql.Clear;
        sql.Add('select * from 教师');
        sql.add('where 教师账号='''+Edit1.Text+'''');
        open;
        Edit2.Text:=FieldByName('姓名').AsString;
        combobox1.Text:=FieldByName('性别').AsString;
        Edit3.Text:=FieldByName('出生年月').AsString;
        Edit4.Text:=FieldByName('所在单位').AsString;
        Edit5.Text:=FieldByName('邮政编码').AsString;
        Edit6.Text:=FieldByName('联系地址').AsString;
        Edit7.Text:=FieldByName('电话1').AsString;
        Edit8.Text:=FieldByNAme('电话2').AsString;
        Edit9.Text:=FieldByName('备注').AsString;
        Edit10.Text:=FieldByName('密码').AsString;
        button2.Enabled:=true;
    end
    end
end;

procedure TForm10.Button2Click(Sender: TObject);
begin
    with data.ADOQuery2 do
    begin
        close;
        sql.Clear;
        sql.Add('update 教师');
        sql.Add('set 密码='''+Edit10.Text+''',姓名='''+Edit2.Text+''',性别='''+combobox1.Text+''',出生年月='''+Edit3.Text+''',所在单位='''+Edit4.Text+''',邮政编码='''+Edit5.Text+''',联系地址='''+Edit6.Text+''',电话1='''+Edit7.Text+''',电话2='''+Edit8.Text+''',备注='''+Edit9.Text+'''');
        execsql;
        application.MessageBox('修改成功','修改信息',MB_OK+MB_ICONEXCLAMATION);
    end
end;

procedure TForm10.Button3Click(Sender: TObject);
begin
    with data.ADOQuery2 do
    begin
        close;
        sql.Clear;
        sql.Add('insert into 教师');
        sql.Add('values ('''+Edit1.Text+''','''+Edit10.Text+''','''+Edit2.Text+''','''+Combobox1.Text+''','''+edit3.Text+''','''+edit4.Text+''','''+Edit6.Text+''','''+Edit5.Text+''','''+Edit7.Text+''','''+Edit8.Text+''','''+Edit9.Text+''')');
        execsql;
        application.MessageBox('添加成功','添加信息',MB_OK+MB_ICONEXCLAMATION);
    end
end;

procedure TForm10.Button4Click(Sender: TObject);
begin
    with data.ADOQuery1 do
    begin
        close;
        sql.Clear;
        sql.Add('delete from 教师');
        sql.Add('where 教师账号='''+Edit1.Text+'''');
        execsql;
        application.MessageBox('删除成功','删除信息',MB_OK+MB_ICONEXCLAMATION);
        with data.ADOQuery2 do
        begin
            close;
            sql.Clear;
            sql.Add('select * from 教师');
            open;
        end
    end
end;

end.