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Delphi语言学习1-Program和Unit2011-12-12 博客园 铁掌水上飘1.单元和程序（Units和Programs）

1）Programs

program Editor;
uses Forms, REAbout, // An "About" box
 REMain; // Main form
{$R *.res}
begin
 Application.Title := "Text Editor";
 Application.CreateForm（TMainForm, MainForm）;
 Application.Run;
end.

2）Unit

unit Unit1;
interface
uses // List of unit dependencies goes here
implementation
uses // List of unit dependencies goes here
// Implementation of class methods, procedures, and functions goes here
initialization
// Unit initialization code goes here
finalization
// Unit finalization code goes here
end.

2.引用Unit到Unit

uses Forms, Main;
uses 
 Forms,
 Main;
uses Windows, Messages, SysUtils, Strings, Classes, Unit2, MyUnit;

3.引用Unit到program or library

uses 
 Windows, Messages, SysUtils,
 Strings in "C:ClassesStrings.pas", Classes;