有关C++Builder中的指针操作在Delphi对应的是什么呢? |
尚未結案
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vagrant
一般會員 發表:29 回覆:72 積分:20 註冊:2003-07-04 發送簡訊給我 |
各位大大,圣诞快乐!
C Builder有这么几句,在Delphi要如何写呢?谢谢 ATTGUARDRECORD *pRecordBuffer = new ATTGUARDRECORD[nCount];
ATTGUARDRECORD *pBuffer = pRecordBuffer;
ATTGUARDRECORD CardRecord;
for(int iLoop = 0; iLoop < nCount; iLoop )
{
CardRecord = *(pBuffer );
nIndex ;
}
delete []pRecordBuffer;
其中ATTGUARDRECORD记录结构如下:
struct ATTGUARDRECORD
{
int nYear;
int nMonth;
int nDay;
int nHour;
int nMinute;
int nSecond;
int nAdr;
};
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Zard
尊榮會員 發表:24 回覆:396 積分:539 註冊:2003-11-26 發送簡訊給我 |
給你一個範例.
unit Unit1; interface uses Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls; type TForm1 = class(TForm) Button1: TButton; procedure Button1Click(Sender: TObject); private { Private declarations } public { Public declarations } end; // 定義Structure ATTGUARDRECORD ATTGUARDRECORD = record nYear, nMonth, nDay, nHour, nMinute, nSecond, nAdr: Integer; end; // 定義Strcuture ATTGUARDRECORD的指蔈 PATTGUARDRECORD = ^ATTGUARDRECORD; var Form1: TForm1; pRecordBuffer, pBuffer: PATTGUARDRECORD; CardRecord: ATTGUARDRECORD; implementation {$R *.DFM} procedure TForm1.Button1Click(Sender: TObject); var nCount, iLoop, nIndex, i: Integer; begin nCount := 5; // 分配記憶體 GetMem(pRecordBuffer, SizeOf(ATTGUARDRECORD) * nCount); pBuffer := pRecordBuffer; // 設定每個 Structure ATTGUARDRECORD 的 nYear 值 for i := 0 to nCount - 1 do begin ATTGUARDRECORD(pBuffer^).nYear := 1000 * (i 1); Inc(pBuffer); end; pBuffer := pRecordBuffer; for iLoop := 0 to nCount - 1 do begin CardRecord := pBuffer^; ShowMessage(IntToStr(CardRecord.nYear)); Inc(pBuffer); Inc(nIndex); end; FreeMem(pRecordBuffer); end; end. |
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