SysUtils.StrAlloc、SysUtils.StrBufSize

StrAlloc   : 给 PChar 指针分配空间, 并填充 #0;

StrBufSize : PChar 缓冲区大小.


 
   

unit Unit1;



interface



uses

  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

  Dialogs;



type

  TForm1 = class(TForm)

    procedure FormCreate(Sender: TObject);

  end;



var

  Form1: TForm1;



implementation



{$R *.dfm}



procedure TForm1.FormCreate(Sender: TObject);

var

  p: PChar;

  i: Integer;

begin

  p := StrAlloc(10);



  StrCopy(p, '123456');

  ShowMessage(p); {123456}



  i := StrBufSize(p);

  ShowMessage(IntToStr(i)); {10}



  StrDispose(p);

end;



end.


 
   

SysUtils 单元下的公用函数目录

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