获取cpu使用率

unit Unit1;

interface

uses
  Winapi.Windows, Winapi.Messages, System.SysUtils,System.StrUtils, System.Variants, System.Classes, Vcl.Graphics,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Vcl.ExtCtrls;

type
  TForm1 = class(TForm)
    Label1: TLabel;
    Timer1: TTimer;
    procedure FormCreate(Sender: TObject);
    procedure Timer1Timer(Sender: TObject);
  private
    { Private declarations }
    Times: TThread.TSystemTimes;
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}



procedure TForm1.FormCreate(Sender: TObject);
begin
TThread.GetSystemTimes(Times);
  end;

procedure TForm1.Timer1Timer(Sender: TObject);
var
  Usage: Integer;
begin
  Usage := TThread.GetCPUUsage(Times);
  form1.Caption := IntToStr(Usage) + ‘%‘;
end;

end.