出处:http://www.cnblogs.com/del/archive/2008/01/09/1031725.html
unit
Unit1;
interface
uses
Windows,
Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs,
StdCtrls;
type
TForm1 = class (TForm)
Button1: TButton;
Button2: TButton;
procedure Button1Click(Sender:
TObject);
procedure Button2Click(Sender:
TObject);
end ;
var
Form1: TForm1;
implementation
{$R *.dfm}
//如果要记录一个人的姓名和年龄, 可以:
procedure TForm1.Button1Click(Sender: TObject);
var
name: string ;
age:
Word;
begin
{赋值}
name := '张三';
age := 18;
{读取}
ShowMessage(Format('%s今年%d岁', [name,age])); {张三今年18岁}
end ;
//不如定义一个结构类型
procedure TForm1.Button2Click(Sender: TObject);
type
TPerson =
record
name: string [12]; {在结构里面不能使用长字符串}
age: Word;
end ;
var
person:
TPerson; {声明结构变量}
const
str = '%s今年%d岁'; {为格式化输出准备一个常量}
begin
{赋值}
person.name := '李四';
person.age := 81;
{读取}
ShowMessage(Format(str, [person.name,person.age])); {李四今年81岁}
end ;
end .
