unit2.pas

学生成绩管理系统

unit Unit2;

interface

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

type
  TForm2 = class(TForm)
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    Label5: TLabel;
    Label6: TLabel;
    Edit1: TEdit;
    Edit2: TEdit;
    Edit3: TEdit;
    Edit4: TEdit;
    Edit5: TEdit;
    Button1: TButton;
    Table1: TTable;
    DataSource1: TDataSource;
    Edit6: TEdit;
    Label7: TLabel;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form2: TForm2;

implementation

{$R *.dfm}

procedure TForm2.Button1Click(Sender: TObject);
begin
if (Edit1.Text='') or (length(edit1.text)<>13) then
begin
showmessage('学号必须是13位数字');
exit;
end;
if (Edit2.Text='') or (length(edit2.text)<>6) then
begin
showmessage('班级的格式要类似AC0101');
exit;
end;
if (Edit3.Text='') or (length(edit3.text)>8) then
begin
showmessage('请输入正确的姓名');
exit;
end;
if (Edit4.Text='') then
begin
showmessage('请输入正确的科目名称');
exit;
end;
if (Edit5.Text='') or (strtoint(edit5.text)>100) then
begin
showmessage('请输入正确的分数');
exit;
end;
table1.Open;
with table1 do
begin
try
Insert;
fieldbyname('学号').AsString:=edit1.Text;
fieldbyname('班级').AsString:=edit2.Text;
fieldbyname('姓名').AsString:=edit3.Text;
fieldbyname('科目').AsString:=edit4.Text;
fieldbyname('成绩').Asinteger:=strtoint(edit5.Text);
fieldbyname('学分').AsInteger:=strtoint(edit6.Text);
post;
refresh;
showmessage('添加成功！');
except

end;
end;
end;

procedure TForm2.Button2Click(Sender: TObject);
begin
    form2.Hide;
end;

end.