程序師世界是廣大編程愛好者互助、分享、學習的平台,程序師世界有你更精彩!
首頁
編程語言
C語言|JAVA編程
Python編程
網頁編程
ASP編程|PHP編程
JSP編程
數據庫知識
MYSQL數據庫|SqlServer數據庫
Oracle數據庫|DB2數據庫
 程式師世界 >> 編程語言 >> 更多編程語言 >> Delphi >> 詳測 Generics Collections TList (8): Sort

詳測 Generics Collections TList (8): Sort

編輯:Delphi

unit Unit1; 
 
interface 
 
uses 
 Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, 
 Dialogs, StdCtrls; 
 
type 
 TForm1 = class(TForm) 
  Button1: TButton; 
  procedure Button1Click(Sender: TObject); 
 end; 
 
var 
 Form1: TForm1; 
 
implementation 
 
{$R *.dfm} 
 
uses Generics.Collections, Generics.Defaults; 
 
procedure TForm1.Button1Click(Sender: TObject); 
var 
 List: TList<Integer>; 
 i: Integer; 
 str: string; 
begin 
 List := TList<Integer>.Create(); 
 List.AddRange([22,33,11]); 
 
 str := ''; 
 for i in List do str := str + IntToStr(i) + ' '; 
 ShowMessage(str); {22 33 11 } 
 
 {排序} 
 List.Sort; 
 str := ''; 
 for i in List do str := str + IntToStr(i) + ' '; 
 ShowMessage(str); {11 22 33 } 
 
 {倒排序} 
 List.Sort(TComparer<Integer>.Construct( 
  function (const n1,n2: Integer): Integer 
  begin 
   Result := n2 - n1; 
  end)); 
 
 str := ''; 
 for i in List do str := str + IntToStr(i) + ' '; 
 ShowMessage(str); {33 22 11 } 
 
 List.Free; 
end; 
 
end. 


  1. 上一頁:
  2. 下一頁:
Copyright © 程式師世界 All Rights Reserved