to the world

联合

#include < iostream.h >

void main()

{

union

{

int ig[ 3 ];

char s[ 12 ];

} t;

t.ig[ 0 ] = ox20494542;

t.ig[ 1 ] = 0x474e494a ;

t.ig[ 2 ] = 0x00000a21 ;

}

posted @ 2006-04-09 20:00 hacken 阅读(107) | 评论 (0) | 编辑收藏

Long time wanna forget

最近是很郁闷了,好长时间做这个了
感觉真是不知所措.
希望快点做C++

posted @ 2006-02-28 10:09 hacken 阅读(188) | 评论 (0) | 编辑收藏

null

int (*hacken)(int a,double b);

是一个指向函数的指针，可以给它赋值如下：

int (*hacken)();

hacken=sin;

其中sin是一个函数名。

posted @ 2006-01-24 16:24 hacken 阅读(209) | 评论 (0) | 编辑收藏

字符输出

＃include <iostream.h>

void main()

{

char*p1,a[16],b[16];

p1="i am a teacher.";

for(int i(0);i<15;i++;)

a[i]=*p1+++1;

a[i]='\0';

cout<<a<<endl;

for(i=0;i<15;i++)

b[i]=*(a+i)-1;

b[i]='\0';

cout<<b<<endl;

}

6:26:54
2005年1月14日
怎么样理解这个程序，有关其中的运算怎么做？

posted @ 2006-01-21 17:00 hacken 阅读(190) | 评论 (0) | 编辑收藏

字符的输出

#include <iostream.h>

void main()

{

char s1[]="abcd",s2[5];

for(int i(0);i<5;i++)

s2[i]='e'+1;

cout<<s1<<endl;

for(i=0;i<5;i++)

cout<<*(s2+i);

cout<<endl;

}

他的结果是：abcd
efghi
怎么出来efghi的，我知道应该是d字符加1就是e ，但有点不懂，希望大家帮助我。
谢谢。
17:17:01
2006年1月20日

posted @ 2006-01-20 17:17 hacken 阅读(325) | 评论 (2) | 编辑收藏

字符串

char *p1="one",*p2="two";

strcmp(p1,p2)>0

怎么样对他们进行比较？希望得到大家的帮助。17:07:20，2006年1月20日

posted @ 2006-01-20 17:08 hacken 阅读(366) | 评论 (3) | 编辑收藏

指针

#include <iostream.h>

int strlen1(char a[])

void main()

{

char s[]="abcdefg";

char*p;

int n=strlen1();

for(p=s+n-1;p+1!=s;p--)

cout<<*p;

cout<<endl;

}

int strlen1(char a[])

{

char *p=a;

int i=0;

while(a[i++]!='10')

p++;

return p-a;

}

在这个程序中，p=s+n-1该怎么理解？希望各位高手可以帮我理解，谢谢。

posted @ 2006-01-20 17:04 hacken 阅读(204) | 评论 (0) | 编辑收藏

Game

//---------------------------------------------------------------------------

#ifndef UnitTetrisH

#define UnitTetrisH

//---------------------------------------------------------------------------

#ifndef STRICT

# define STRICT

#endif

//---------------------------------------------------------------------------

#include <Classes.hpp>

#include <Controls.hpp>

#include <StdCtrls.hpp>

#include <Forms.hpp>

#include "TetrisData.h"

#include <ExtCtrls.hpp>

#include <ActnList.hpp>

#include <Menus.hpp>

#include <AppEvnts.hpp>

#include "VictorDDraw8.h"

//---------------------------------------------------------------------------

class TFormTetris : public TForm

{

__published: // IDE-managed Components

TMainMenu *MainMenu1;

TActionList *ActionList1;

TAction *AnNew;

TAction *AnPause;

TAction *AnHScore;

TAction *AnExit;

TMenuItem *MmFile;

TMenuItem *New1;

TMenuItem *Pause1;

TMenuItem *HighScore1;

TMenuItem *Exit1;

TMenuItem *N1;

TApplicationEvents *ApplicationEvents1;

TMenuItem *H1;

TAction *AnHelp;

TAction *AnAbout;

TMenuItem *AnHelp1;

TMenuItem *AnAbout1;

TAction *AnSingle;

TMenuItem *S1;

TMenuItem *Speedset;

TMenuItem *N2;

TAction *AnSpeed;

TVictorDDraw8 *VictorDDraw81;

void __fastcall FormKeyDown(TObject *Sender, WORD &Key,

TShiftState Shift);

void __fastcall AnNewExecute(TObject *Sender);

void __fastcall AnPauseExecute(TObject *Sender);

void __fastcall AnHScoreExecute(TObject *Sender);

void __fastcall AnExitExecute(TObject *Sender);

void __fastcall ApplicationEvents1Deactivate(TObject *Sender);

void __fastcall LabelHomeClick(TObject *Sender);

void __fastcall AnHelpExecute(TObject *Sender);

void __fastcall AnAboutExecute(TObject *Sender);

void __fastcall AnSingleExecute(TObject *Sender);

void __fastcall FormKeyUp(TObject *Sender, WORD &Key, TShiftState Shift);

void __fastcall AnSpeedExecute(TObject *Sender);

void __fastcall ApplicationEvents1Idle(TObject *Sender, bool &Done);

void __fastcall VictorDDraw81DispFrame(TCustomDDraw8 *Sender);

void __fastcall VictorDDraw81RestoreFrame(TCustomDDraw8 *Sender);

void __fastcall ApplicationEvents1Restore(TObject *Sender);

void __fastcall ApplicationEvents1Activate(TObject *Sender);

public:

static const NumScores = 5;

#pragma pack(push,1)

typedef struct

{

int Score;

char Name[32];

} TScoreItem;

typedef union

{

struct

{

TScoreItem Scores[NumScores];

int Speed;

};

char Buffer[512];

} TTetrisParams;

#pragma pack(pop)

private: // User declarations

__property bool Paused = { read = _bPaused, write = SetPause };

static const BlockSize=20, BlockTop=10, BlockLL=10, BlockRL=298, BlockIL=206;

bool _bPaused, _bSingle, _bGameOverL, _bGameOverR;

TBaseTetris TetrisLeft, TetrisRight;

TTetrisParams TetrisParams;

//Graphics::TBitmap *TtBmp, *PsBmp, *OvBmp, *SgBmp, *BkBmp, *KkBmp, *MaskBmp;

TDDrawSurface *TtSur, *PsSur, *OvSur, *SgSur, *BkSur;

int iSurfaceWidth, iSurfaceHeight;

bool bDisplayEnabled;

int iFrames,iFrmCnt;

char Str_L_Lines[64], Str_L_Score[64], Str_R_Lines[64], Str_R_Score[64], Str_Speed[64], Str_HighScore[64], Str_Fps[64];

int LnLeft, LnRight, _iKeyDelay;

int _iLeftDown, _iRightDown;

int _iLeftLeft, _iLeftRight;

int _iRightLeft, _iRightRight;

unsigned int nSysTimeInterval;

int nTimerMainInterval, nTimerDownInterval;

int iTimerMainC0, iTimerMainC1, iTimerDownC0, iTimerDownC1;

void __fastcall EvTimerMainTimer(void);

void __fastcall EvTimerDownTimer(void);

void __fastcall InitSurfaces(void);

void __fastcall LoadSurfaces(void);

int __fastcall GetInitSpeed(void);

void __fastcall SetInitSpeed(int iSpd);

int __fastcall GetInitBackground(void); //

void __fastcall SetInitBackground(int iBkg); //

void __fastcall SetPause(bool);

void __fastcall CheckGameStatus(void);

void __fastcall RefreshDisplay(void);

bool __fastcall TestKeyDown(int &iKey);

void __fastcall DrawTetris(TDDrawDisplay *lpDisplay, TBaseTetris *lpTetris, int x0, int y0, bool bPlaySingle);

void __fastcall DrawIncoming(TDDrawDisplay *lpDisplay, TBaseTetris *lpTetris, int x0, int y0);

void LoadParams(void);

void SaveParams(void);

void GetPlayerName(char *lpName);

void ShowHighScores(void);

public: // User declarations

__fastcall TFormTetris(TComponent* Owner);

__fastcall ~TFormTetris();

__property int InitSpeed = { read = GetInitSpeed, write = SetInitSpeed };

__property int InitBackground = { read = GetInitBackground, write = SetInitBackground };//

protected:

void __fastcall WndProc(Messages::TMessage &Message);

};

//---------------------------------------------------------------------------

extern PACKAGE TFormTetris *FormTetris;

//---------------------------------------------------------------------------

#endif

posted @ 2006-01-17 18:10 hacken 阅读(369) | 评论 (0) | 编辑收藏

game

//---------------------------------------------------------------------------

#ifndef UnitTetrisH

#define UnitTetrisH

//---------------------------------------------------------------------------

#include <Classes.hpp>

#include <Controls.hpp>

#include <StdCtrls.hpp>

#include <Forms.hpp>

#include "TetrisData.h"

#include <ExtCtrls.hpp>

#include <ActnList.hpp>

#include <Menus.hpp>

#include <AppEvnts.hpp>

//---------------------------------------------------------------------------

class TFormTetris : public TForm

{

__published: // IDE-managed Components

TPaintBox *PaintBox1;

TMainMenu *MainMenu1;

TActionList *ActionList1;

TAction *AnNew;

TAction *AnPause;

TAction *AnHScore;

TAction *AnExit;

TPaintBox *PaintBox2;

TTimer *Timer1;

TMenuItem *MmFile;

TMenuItem *New1;

TMenuItem *Pause1;

TMenuItem *HighScore1;

TMenuItem *Exit1;

TMenuItem *N1;

TLabel *LabelLines;

TLabel *LabelScore;

TScrollBox *ScrollBox1;

TApplicationEvents *ApplicationEvents1;

TLabel *LabelHome;

TLabel *Label2;

TLabel *Label3;

TLabel *Label4;

TLabel *LabelHighScore;

TMenuItem *H1;

TAction *AnHelp;

TAction *AnAbout;

TMenuItem *AnHelp1;

TMenuItem *AnAbout1;

TLabel *Label1;

void __fastcall PaintBox1Paint(TObject *Sender);

void __fastcall FormKeyDown(TObject *Sender, WORD &Key,

TShiftState Shift);

void __fastcall AnNewExecute(TObject *Sender);

void __fastcall AnPauseExecute(TObject *Sender);

void __fastcall AnHScoreExecute(TObject *Sender);

void __fastcall AnExitExecute(TObject *Sender);

void __fastcall PaintBox2Paint(TObject *Sender);

void __fastcall Timer1Timer(TObject *Sender);

void __fastcall ApplicationEvents1Deactivate(TObject *Sender);

void __fastcall LabelHomeMouseEnter(TObject *Sender);

void __fastcall LabelHomeMouseLeave(TObject *Sender);

void __fastcall LabelHomeClick(TObject *Sender);

void __fastcall AnHelpExecute(TObject *Sender);

void __fastcall AnAboutExecute(TObject *Sender);

public:

static const NumScores = 5;

#pragma pack(push,1)

typedef struct

{

int Score;

char Name[32];

} TScoreItem;

typedef union

{

TScoreItem Scores[NumScores];

char Buffer[512];

} TTetrisParams;

#pragma pack(pop)

private: // User declarations

__property bool Paused = { read = _bPaused, write = SetPause };

bool _bPaused;

TBaseTetris Tetris;

TTetrisParams TetrisParams;

Graphics::TBitmap *TtBmp, *PsBmp, *OvBmp;

void __fastcall SetPause(bool);

void __fastcall CheckGameStatus(void);

void __fastcall RefreshDisplay(void);

void LoadParams(void);

void SaveParams(void);

void GetPlayerName(char *lpName);

void ShowHighScores(void);

public: // User declarations

__fastcall TFormTetris(TComponent* Owner);

__fastcall ~TFormTetris();

};

//---------------------------------------------------------------------------

extern PACKAGE TFormTetris *FormTetris;

//---------------------------------------------------------------------------

#endif

posted @ 2006-01-17 17:41 hacken 阅读(298) | 评论 (0) | 编辑收藏

pi

2006年1月16日10:57:35

void __fastcall TForm1::Button1Click(TObject *Sender)

{

double x=2, z=2;

int a=1, b=3;

while(z>1e-15)

{

z = z*a/b;

x += z;

a++;

b+=2;

}

Memo1->Text = AnsiString().sprintf("Pi=%.13f", x);

posted @ 2006-01-16 10:54 hacken 阅读(119) | 评论 (0) | 编辑收藏

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