教育系统应用

开发平台：
Delphi

Unit6.pas：源码内容
							unit Unit6;
interface
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, Buttons, ExtCtrls, DBCtrls, Mask, ComCtrls, Grids,
  DBGrids, DB, DBTables;
type
  Tchooseform = class(TForm)
    PageControl1: TPageControl;
    TabSheet1: TTabSheet;
    TabSheet2: TTabSheet;
    Label10: TLabel;
    Label11: TLabel;
    Label12: TLabel;
    Label13: TLabel;
    Label14: TLabel;
    Label16: TLabel;
    Label17: TLabel;
    Label18: TLabel;
    DBMemo2: TDBMemo;
    DBEdit8: TDBEdit;
    DBEdit9: TDBEdit;
    DBEdit10: TDBEdit;
    DBEdit11: TDBEdit;
    DBEdit12: TDBEdit;
    DBEdit13: TDBEdit;
 //   DBEdit14: TDBEdit;
    DBRadioGroup2: TDBRadioGroup;
    Panel1: TPanel;
    TreeView1: TTreeView;
    BitBtn1: TBitBtn;
    DBNavigator2: TDBNavigator;
    DBGrid1: TDBGrid;
    Label1: TLabel;
    Query1: TQuery;
    DataSource1: TDataSource;
    DBMemo1: TDBMemo;
    DBNavigator1: TDBNavigator;
    BitBtn2: TBitBtn;
    BitBtn3: TBitBtn;
    Query2: TQuery;
    DBComboBox1: TDBComboBox;
    Label2: TLabel;
 //  procedure TreeView1DblClick(Sender: TObject);
 function checknewchoose:boolean;
    procedure TabSheet2Show(Sender: TObject);
    procedure TabSheet1Show(Sender: TObject);
    procedure FormActivate(Sender: TObject);
    procedure DBNavigator1Click(Sender: TObject; Button: TNavigateBtn);
    procedure TreeView1Click(Sender: TObject);
    procedure BitBtn3Click(Sender: TObject);
    procedure BitBtn2Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
  procedure DBMemo2MouseDown(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);
    procedure TreeView1MouseDown(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);
    procedure DBNavigator2Click(Sender: TObject; Button: TNavigateBtn);
    procedure DBEdit13Change(Sender: TObject);
  private
    { Private declarations }
  public
  temp:integer;
    { Public declarations }
  end;
var
  chooseform: Tchooseform;
 // delchoose:boolean;
      addchoose:boolean;
//bw,ew:integer;
implementation
   uses Unit4, Unit3;
{$R *.dfm}
procedure Tchooseform.TabSheet2Show(Sender: TObject);
begin
DBNavigator1.Enabled:=false;
 DBNavigator2.DataSource:=DataModule4.DataSource_choose;
end;
procedure Tchooseform.TabSheet1Show(Sender: TObject);
begin
     DBNavigator1.Enabled:=true;
DBNavigator1.DataSource:=DataModule4.DataSource_choose;
end;
procedure Tchooseform.FormActivate(Sender: TObject);
begin
DBNavigator2.DataSource:=DataModule4.DataSource_choose;
DBNavigator1.Enabled:=false;
end;
procedure Tchooseform.DBNavigator1Click(Sender: TObject; Button: TNavigateBtn);
begin
  DBMemo2.DataSource:=DataModule4.DataSource_choose;
  DBEdit8.DataSource:=DataModule4.DataSource_choose;
  DBEdit9.DataSource:=DataModule4.DataSource_choose ;
  DBEdit10.DataSource:=DataModule4.DataSource_choose;
  DBEdit11.DataSource:=DataModule4.DataSource_choose;
  DBEdit12.DataSource:=DataModule4.DataSource_choose;
  DBEdit13.DataSource:=DataModule4.DataSource_choose ;
  DBComboBox1.DataSource:=DataModule4.DataSource_choose ;
  DBRadioGroup2.DataSource:=DataModule4.DataSource_choose;
case button of
nbInsert:
begin
addchoose:=true;
if Treeview1.Focused=false then
begin
showmessage('请选择一个章节点') ;
  DBNavigator1.BtnClick(nbCancel);
 // nbInsert
// DBNavigator1.
  DBNavigator1.Enabled:=false;
end
else
if treeview1.Focused=true then
begin
 DBNavigator1.Enabled:=false;
if (temp mod 10)=0 then
begin
showmessage('本章知识点已满!');
DBNavigator1.BtnClick(nbCancel);
end
else
begin
DBEdit13.text:=inttostr(temp);
end;
end;
end;
end;
   case button of
   nbDelete:
   begin
   
if Treeview1.Focused=false then
begin
DBNavigator1.BtnClick(nbCancel);
showmessage('请选择一个章节点') ;
  DBNavigator1.BtnClick(nbCancel);
  DBNavigator1.Enabled:=false;
end
else
//DBNavigator1.d
query2.close;
query2.sql.clear;
query2.sql.text:='delete ti_choose where tno='''+inttostr(mainform.updateno)+''' ';
query2.ExecSQL;
query2.close;
query2.sql.clear;
query2.sql.text:='update ti_choose set tno=tno-1 where tno>'''+inttostr(mainform.updateno)+''' and tno like '''+inttostr(mainform.updateno div 10)+'%''';
query2.ExecSQL;
DBNavigator2.DataSource:=DataModule4.DataSource_choose;
dataModule4.Table_choose.First;
//  showmessage(inttostr(DataModule4.Table_choose.FieldValues['tno']));
   end;
   end;
case button of
nbPost:
begin
DataModule4.Table_choose.Close;
DataModule4.Table_choose.Open;
end;
end;
end;
procedure Tchooseform.TreeView1Click(Sender: TObject);
begin
 if TreeView1.Selected.text='第一知识点 C语言的特点' then  //第一章第一节第一知识点
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''111%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=1111;
  end;
end;
  end;
 end;
 if TreeView1.Selected.text='第一知识点 C语言的标识符和保留字' then  //第一章第二节第一知识点
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''121%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=1211;
  end;
end;
 end;
 end;
 {
 
     if TreeView1.Selected.text='第三节' then    //第一章第三节
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''13%%'' order by tno');
query1.Open;
 end;
 end;
                           }
if TreeView1.Selected.text='第一知识点 C程序的结构' then      //第一章第三节第一知识点
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''131%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=1311;
  end;
end;
 end;
 end;
                        {
 if TreeView1.Selected.text='第四节' then             //第一章第四节
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''14%%''');
query1.Open;
 end;
 end;
                            }
if TreeView1.Selected.text='第一知识点 C程序的开发过程' then     //第一章第四节第一知识点
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''141%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=1411;
  end;
end;
 end;
 end;
 //-----------------------------------------------------------------
 {
 if TreeView1.Selected.text='第二章 数据类型、运算符与表达式' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''2%%%''');
query1.Open;
 end;
 end;
                     }
                     {
if TreeView1.Selected.text='第一节' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''21%%''');
query1.Open;
 end;
 end;
                             }
if TreeView1.Selected.text='第一知识点 C语言数据类型' then   //第二章第一节第一知识点
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''211%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=2111;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第二知识点 整型数据' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''212%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=2121;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第三知识点 实型数据' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''213%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=2131;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第四知识点 字符型数据' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''214%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=2141;
  end;
end;
 end;
 end;
                      //---------------------------------------
                      {
if TreeView1.Selected.text='第二节' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''22%%''');
query1.Open;
 end;
 end;
                             }
if TreeView1.Selected.text='第一知识点 运算符' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''221%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=2211;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第二知识点 位运算' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''222%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=2221;
  end;
end;
 end;
 end;
 //-----------------------------------
 {
if TreeView1.Selected.text='第三节' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''23%%''');
query1.Open;
 end;
 end;
                         }
if TreeView1.Selected.text='第一知识点 表达式' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''231%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=2311;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第二知识点 类型转换' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''232%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=2321;
  end;
end;
 end;
 end;
 //-------------------------------------------------------------
 {
if TreeView1.Selected.text='第三章 顺序结构' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''3%%%''');
query1.Open;
 end;
 end;
if TreeView1.Selected.text='第一节' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''31%%''');
query1.Open;
 end;
end;                         }
if TreeView1.Selected.text='第一知识点 字符数据的输入输出' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''311%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=3111;
  end;
end;
 end;
 end;
 {
if TreeView1.Selected.text='第二节' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''32%%''');
query1.Open;
 end;
end;                         }
if TreeView1.Selected.text='第一知识点 格式输入与输出' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''321%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=3211;
  end;
end;
 end;
 end;
 //------------------------------------------------------------
 {
if TreeView1.Selected.text='第四章 选择结构 ' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''4%%%''');
query1.Open;
 end;
 end;
                        }
              {
if TreeView1.Selected.text='第一节' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''41%%''');
query1.Open;
 end;
end;
                      }
if TreeView1.Selected.text='第一知识点 if语句' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''411%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=4111;
  end;
end;
 end;
 end;
 {
if TreeView1.Selected.text='第二节' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''42%%''');
query1.Open;
 end;
end;
                            }
if TreeView1.Selected.text='第一知识点 条件表达式' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''421%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=4211;
  end;
end;
 end;
 end;
 {
if TreeView1.Selected.text='第三节' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''43%%''');
query1.Open;
 end;
end;
                           }
if TreeView1.Selected.text='第一知识点 switch(开关)语句' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''431%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=4311;
  end;
end;
 end;
 end;
 //-------------------------------------------------------
 {
if TreeView1.Selected.text='第五章 循环控制  ' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''5%%%''');
query1.Open;
 end;
 end;
if TreeView1.Selected.text='第一节' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''51%%''');
query1.Open;
 end;
end;
                         }
if TreeView1.Selected.text='第一知识点 while循环语句' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''511%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=5111;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第二知识点 do-while循环语句' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''512%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=5121;
  end;
end;
 end;
 end;
 {
if TreeView1.Selected.text='第二节' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''52%%''');
query1.Open;
 end;
end;
                      }
if TreeView1.Selected.text='第一知识点 for循环语句' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''521%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=5211;
  end;
end;
 end;
 end;
                      {
if TreeView1.Selected.text='第三节' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''53%%''');
query1.Open;
 end;
end;                  }
if TreeView1.Selected.text='第一知识点 break语句' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''531%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=5311;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第二知识点 continue语句' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''532%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=5321;
  end;
end;
 end;
 end;
 {
if TreeView1.Selected.text='第四节' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''54%%''');
query1.Open;
 end;
end;                }
if TreeView1.Selected.text='第一知识点 goto语句' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''541%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=5411;
  end;
end;
 end;
 end;
 //-----------------------------------------------------
 {
if TreeView1.Selected.text='第六章 数组指针  ' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''6%%%''');
query1.Open;
 end;
 end;
if TreeView1.Selected.text='第一节' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''61%%''');
query1.Open;
 end;
end;                  }
if TreeView1.Selected.text='第一知识点 一维数组' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''611%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=6111;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第二知识点 二维数组' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''612%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=6121;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第三知识点 字符数组' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''613%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=6131;
  end;
end;
 end;
 end;
 {
if TreeView1.Selected.text='第二节' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''62%%''');
query1.Open;
 end;
end;                    }
if TreeView1.Selected.text='第一知识点 指针的说明和初始化' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''621%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=6211;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第二知识点 指针运算' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''622%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=6221;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第三知识点 一维数组和运算' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''623%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=6231;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第四知识点 二维数组和运算' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''624%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=6241;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第五知识点 字符指针和字符串' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''625%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=6251;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第六知识点 多级指针' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''626%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=6261;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第七知识点 指针型函数' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''627%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=6271;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第八知识点 指向函数的指针' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''628%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=6281;
  end;
end;
 end;
 end;
                  {
if TreeView1.Selected.text='第七章 函数  结构体与共用体  ' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''7%%%''');
query1.Open;
 end;
 end;
if TreeView1.Selected.text='第一节 ' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''71%%''');
query1.Open;
 end;
end;                 }
if TreeView1.Selected.text='第一知识点 函数设计' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''711%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=7111;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第二知识点 函数的存储类型' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''712%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=7121;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第三知识点 变量的作用域和存储类型' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''713%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=7131;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第四知识点 函数的数据传递' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''714%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=7141;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第五知识点 数组在函数间的传递' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''715%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=7151;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第六知识点 递归函数' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''716%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=7161;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第七知识点 传递main()函数的参数' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''717%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=7171;
  end;
end;
 end;
 end;
 {
if TreeView1.Selected.text='第二节 ' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''72%%''');
query1.Open;
 end;
end;                             }
if TreeView1.Selected.text='第一知识点 结构体定义和变量说明' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''721%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=7211;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第二知识点 结构体变量的引用和初始化' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''722%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=7221;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第三知识点 结构体数组' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''723%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=7231;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第四知识点 结构体指针' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''724%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=7241;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第五知识点 函数之间结构体变量的数据传递' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''725%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=7251;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第六知识点 结构体嵌套' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''726%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=7261;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第七知识点 链表' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''727%'' order by tno');
query1.Open;
 begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=7271;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第八知识点 共用体' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''728%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=7281;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第九知识点 枚举类型' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''729%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=7291;
  end;
end;
 end;
 end;
 {
if TreeView1.Selected.text='第八章 预处理命令  ' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''8%%%''');
query1.Open;
 end;
 end;
if TreeView1.Selected.text='第一节 ' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''81%%''');
query1.Open;
 end;
end;                                }
if TreeView1.Selected.text='第一知识点 宏' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''811%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=8111;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第二知识点 条件编译' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''812%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=8121;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第三知识点 文件包含' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''813%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=8131;
  end;
end;
 end;
 end;
 {
if TreeView1.Selected.text='第二节 ' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''82%%''');
query1.Open;
 end;
end;                           }
if TreeView1.Selected.text='第一知识点 文件概述' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''821%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=8211;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第二知识点 文件的输入输出' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''822%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=8221;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第三知识点 文件的定位操作' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''823%''order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=8231;
  end;
end;
 end;
 end;
if TreeView1.Selected.text='第四知识点 文件的检测' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''824%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=8241;
  end;
end;
 end;
 end;
 {
if TreeView1.Selected.text='第九章 常用算法设计  ' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''9%%%''');
query1.Open;
 end;
 end;
if TreeView1.Selected.text='第一节 ' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''91%%''');
query1.Open;
 end;
end;                     }
if TreeView1.Selected.text='第一知识点 排序' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''911%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=9111;
  end;
end;
 end;
 end;
 {
if TreeView1.Selected.text='第二节 ' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''92%%''');
query1.Open;
 end;
end;                               }
if TreeView1.Selected.text='第一知识点 查找' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''921%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=9211;
  end;
end;
 end;
 end;
 {
if TreeView1.Selected.text='第三节 ' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''93%%''');
query1.Open;
 end;
end;                 }
if TreeView1.Selected.text='第一知识点 枚举法' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''931%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=9311;
  end;
end;
 end;
 end;                          {
if TreeView1.Selected.text='第四节 ' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''94%%''');
query1.Open;
 end;
end;                            }
if TreeView1.Selected.text='第一知识点 递归法' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''941%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=9411;
  end;
end;
 end;
 end;
  DBMemo2.DataSource:=DataSource1;
  DBEdit8.DataSource:=DataSource1;
  DBEdit9.DataSource:=DataSource1;
  DBEdit10.DataSource:=DataSource1;
  DBEdit11.DataSource:=DataSource1;
  DBEdit12.DataSource:=DataSource1;
  DBEdit13.DataSource:=DataSource1;
  DBComboBox1.DataSource:=DataSource1;
  DBRadioGroup2.DataSource:=DataSource1;
 DBNavigator2.DataSource:=DataSource1;
end;
procedure Tchooseform.BitBtn3Click(Sender: TObject);
begin
DBNavigator1.BtnClick(nbCancel);
end;
function Tchooseform.checknewchoose:boolean;
var
success:boolean;
begin
success:=true;
with DataModule4.Table_choose do
begin
if DBEdit8.Text='' then
success:=false;
if DBEdit9.Text='' then
success:=false;
if DBEdit10.Text='' then
success:=false;
if DBEdit11.Text='' then
success:=false;
if DBComboBox1.Text='' then
success:=false;
if DBMemo2.Text='' then
success:=false;
if DBRadioGroup2.Value='' then
success:=false;
if not success then
begin
showmessage('红色项必须填写,请补上未填的红色项!');
end;
  checknewchoose:=success;
end;
end;
procedure Tchooseform.BitBtn2Click(Sender: TObject);
begin
 if addchoose then
     begin
       if checknewchoose then
       begin
       DataModule4.Table_choose.Post;
DataModule4.Table_choose.Close;
DataModule4.Table_choose.Open;
       showmessage('添加成功!');
       addchoose:=false;
       DBNavigator2.DataSource:=DataModule4.DataSource_choose;
    //   inc(newshijuanhao);
     //  DataModule4.Table_shijuan.UpdateRecord;
     DBNavigator1.Enabled:=true;
        end
    else
    exit;
end;
end;
procedure Tchooseform.FormCreate(Sender: TObject);
begin
//bw:=DBNavigator1.Width;
//ew:=(DBNavigator1.Width div 2);
addchoose:=false;
end;
procedure Tchooseform.DBMemo2MouseDown(Sender: TObject;
  Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
begin
//
 //  DBMemo2.ReadOnly:=false;
  //             DataModule4.Table_choose.
{                                                     
DBMemo2.DataSource:=DataModule4.DataSource_choose;
  DBEdit8.DataSource:=DataModule4.DataSource_choose;
  DBEdit9.DataSource:=DataModule4.DataSource_choose ;
  DBEdit10.DataSource:=DataModule4.DataSource_choose;
  DBEdit11.DataSource:=DataModule4.DataSource_choose;
  DBEdit12.DataSource:=DataModule4.DataSource_choose;
  DBEdit13.DataSource:=DataModule4.DataSource_choose ;
  DBEdit14.DataSource:=DataModule4.DataSource_choose ;
  DBRadioGroup2.DataSource:=DataModule4.DataSource_choose;    }
end;
procedure Tchooseform.TreeView1MouseDown(Sender: TObject;
  Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
begin
DBNavigator1.Enabled:=true;
end;
procedure Tchooseform.DBNavigator2Click(Sender: TObject;
  Button: TNavigateBtn);
begin
case button of
nbFirst:
begin
  DataModule4.Table_choose.First;
  end;
end;
end;
procedure Tchooseform.DBEdit13Change(Sender: TObject);
begin
//showmessage(inttostr(bw));
//showmessage(inttostr(ew));
if DBEdit13.Text='' then
begin
DBNavigator1.VisibleButtons:=[nbInsert];
 DBNavigator1.Width:=28;
 end;
if DBEdit13.Text<>'' then
begin
 DBNavigator1.Width:=56;
DBNavigator1.VisibleButtons:=[nbInsert,nbDelete];
end;
end;
end.

						