mainunit.pas
上传用户:psxgmh
上传日期:2013-04-08
资源大小:15112k
文件大小:3k
- unit mainunit;
- interface
- uses
- Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
- Dialogs, StdCtrls, ComCtrls, ExtCtrls;
- type
- TForm1 = class(TForm)
- Button1: TButton;
- Button2: TButton;
- Label1: TLabel;
- Label2: TLabel;
- ProgressBar1: TProgressBar;
- Label3: TLabel;
- Button3: TButton;
- Button4: TButton;
- Label4: TLabel;
- Timer1: TTimer;
- procedure Button1Click(Sender: TObject);
- procedure FormCreate(Sender: TObject);
- procedure Timer1Timer(Sender: TObject);
- procedure Button2Click(Sender: TObject);
- procedure Button4Click(Sender: TObject);
- procedure Button3Click(Sender: TObject);
- private
- { Private declarations }
- WasteTime:Integer;
- public
- { Public declarations }
- end;
- var
- Form1: TForm1;
- implementation
- {$R *.dfm}
- procedure TForm1.Button1Click(Sender: TObject);
- var
- V1: Variant;
- begin
- V1 := 0;
- Form1.ProgressBar1.Position := 0;
- Timer1.Enabled:=True;
- WasteTime:=0;
- Label1.Caption:='Variant类型运行时间:';
- Label1.Font.Color:=ClBlack;
- while V1 < 5000000 do
- begin
- Inc (V1);
- if (V1 mod 50000) = 0 then
- begin
- ProgressBar1.Position := V1 div 50000;
- Application.ProcessMessages;
- end;
- end;
- Timer1.Enabled:=False;
- Label1.Caption :=Label1.Caption+IntToStr(WasteTime)+'秒.';
- Label1.Font.Color:=ClRed;
- WasteTime:=0;
- end;
- procedure TForm1.FormCreate(Sender: TObject);
- begin
- WasteTime:=0;
- end;
- procedure TForm1.Timer1Timer(Sender: TObject);
- begin
- WasteTime:=WasteTime+1;
- end;
- procedure TForm1.Button2Click(Sender: TObject);
- var
- V1: Integer;
- begin
- V1 := 0;
- Form1.ProgressBar1.Position := 0;
- Timer1.Enabled:=True;
- WasteTime:=0;
- Label2.Caption:='Integer整型运行时间:';
- Label2.Font.Color:=ClBlack;
- while V1 < 5000000 do
- begin
- Inc (V1);
- if (V1 mod 50000) = 0 then
- begin
- ProgressBar1.Position := V1 div 50000;
- Application.ProcessMessages;
- end;
- end;
- Timer1.Enabled:=False;
- if (WasteTime<1 )then
- Label2.Caption :=Label2.Caption+'少于1秒.'
- else
- Label2.Caption :=Label2.Caption+IntToStr(WasteTime)+'秒.';
- Label2.Font.Color:=ClBlue;
- WasteTime:=0;
- end;
- procedure TForm1.Button4Click(Sender: TObject);
- var
- V1: Double;
- begin
- V1 := 0;
- Form1.ProgressBar1.Position := 0;
- Timer1.Enabled:=True;
- WasteTime:=0;
- Label4.Caption:='Real实型运行时间:';
- Label4.Font.Color:=ClBlack;
- while V1 < 5000000 do
- begin
- V1:=V1+1;
- if (Round(V1) mod 50000) = 0 then
- begin
- ProgressBar1.Position :=Round(V1) div 50000;
- Application.ProcessMessages;
- end;
- end;
- Timer1.Enabled:=False;
- if (WasteTime<1 )then
- Label4.Caption :=Label4.Caption+'少于1秒.'
- else
- Label4.Caption :=Label4.Caption+IntToStr(WasteTime)+'秒.';
- Label4.Font.Color:=ClYellow;
- WasteTime:=0;
- end;
- procedure TForm1.Button3Click(Sender: TObject);
- begin
- Close;
- end;
- end.