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unit MyADO;
interface
uses
SysUtils, Classes,ADODB,DB,Variants,StdCtrls,Dialogs;
type
TMyADO = class(TComponent)
    private
    Connection: TADOConnection;
    Query: TADOQuery;
    Table: TADOTable;
    FConnectionString:string;
    procedure InitQuery(InputQuery: TADOQuery; QueryString: String);
    function CheckParaEqual(QueryString: String; ParameterList: TStringList):Boolean;
    procedure InitParameter(InputQuery:TADOQuery;QueryString:string;ParameterList:TStringList);
public
    constructor Create(ConnectionString: String);virtual;
    destructor Destory;virtual;
    procedure SetConnectionString(ConnectionString: string);
    function GetConnection():TADOConnection;overload;virtual;
    function GetConnection(ConnectionString: String): TADOConnection;overload;virtual;
    function GetQuery: TADOQuery;overload;virtual;
    procedure GetQuery(InputQuery: TADOQuery; QueryString: String);overload;virtual;
    procedure GetQuery(InputQuery:TADOQuery; QueryString: String; ParameterList: TStringList);overload;virtual;
    function GetTable: TADOTable;overload;virtual;
    function GetTable(TableName: String): TADOTable;overload;virtual;
    function GetTable(TableName: String; Connection: TADOConnection):TADOTable;overload;virtual;
    function GetExecuteScalar(QueryString: String): Variant;overload;virtual;
    function GetExecuteScalar(QueryString: String; ParameterList: TStringList): Variant;overload;virtual;
    function GetExecuteNoQuery(ExecuteSQL:String):Boolean;overload;virtual;
    function GetExecuteNoQuery(ExecuteSQL: String; ParameteList: TStringList):Boolean;overload;virtual;
 


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procedure TForm1.Timer1Timer(Sender: TObject);
begin
   Windows.Beep(1200+i_f,10+i_f);
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   begin
      inc(i_f);
   end
end;
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