다음의 내용은 모두 모니터 화면에 ""Hello World""를 찍기 위한 프로그램입
니다.
중고등학생 (High School/Jr.High)
================================
10 PRINT ""HELLO WORLD""
20 END
대학 신입생 (First year in College)
===================================
program Hello(input, output)
begin
writeln('Hello World')
end.
대학 졸업반 (Senior year in College)
====================================
(defun hello
(print
(cons 'Hello (list 'World))))
퍼온 사람 주 => 요건 Lisp라는군요.
신입 사원 (New professional)
============================
#include
void main(void)
{
char *message[] = {""Hello "", ""World""};
int i;
for(i = 0; i < 2; ++i)
printf(""%s"", message[i]);
printf(""\n"");
}
숙련된 사원 (Seasoned professional)
===================================
#include
#include
class string
{
private:
int size;
char *ptr;
public:
string() : size(0), ptr(new char('\0')) {}
string(const string &s) : size(s.size)
{
ptr = new char[size + 1];
strcpy(ptr, s.ptr);
}
~string()
{
delete [] ptr;
}
friend ostream &operator <<(ostream &, const string &);
string &operator=(const char *);
};
ostream &operator<<(ostream &stream, const string &s)
{
rettream << s.ptr);
}
string &string::operator=(const char *chrs)
{
if (this != &chrs)
{
delete [] ptr;
size = strlen(chrs);
ptr = new char[size + 1];
strcpy(ptr, chrs);
}
return(*this);
}
int main()
{
string str;
str = ""Hello World"";
cout << str << endl;
return(0);
}
마스터 프로그래머 (Master Programmer)
=====================================
[
uuid(2573F8F4-CFEE-101A-9A9F-00AA00342820)
]
library LHello
{
// bring in the master library
importlib(""actimp.tlb"");
importlib(""actexp.tlb"");
// bring in my interfaces
#include ""pshlo.idl""
[
uuid(2573F8F5-CFEE-101A-9A9F-00AA00342820)
]
cotype THello
{
interface IHello;
interface IPersistFile;
};
};
[
exe,
uuid(2573F890-CFEE-101A-9A9F-00AA00342820)
]
module CHelloLib
{
// some code related header files
importheader();
importheader();
importheader();
importheader(""pshlo.h"");
importheader(""shlo.hxx"");
importheader(""mycls.hxx"");
// needed typelibs
importlibctimp.tlb"");
importlib(""actexp.tlb"");
importlib(""thlo.tlb"");
[
uuid(2573F891-CFEE-101A-9A9F-00AA00342820),>
#include ""ipfix.hxx""
extern HANDLE hEvent;
class CHello : public CHelloBase
{
public:
IPFIX(CLSID_CHello);
CHello(IUnknown *pUnk);
~CHello();
HRESULT __stdcall PrintSz(LPWSTR pwszString);
aggregatable
]
coclass CHello
{
cotype THello;
};
};
private:
static int cObjRef;
};
#include
#include
#include
#include
#include ""thlo.h""
#include ""pshlo.h""
#include ""shlo.hxx""
#include ""mycls.hxx""
int CHello::cObjRef = 0;
CHello::CHello(IUnknown *pUnk) : CHelloBase(pUnk)
{
cObjRef++;
return;
}
HRESULT __stdcall CHello::PrintSz(LPWSTR pwszString)
{
printf(""%ws\n"", pwszString);
return(ResultFromScode(S_OK));
}
CHello::~CHello(void)
{
// when the object count goes to zero, stop the server
cObjRef--;
if( cObjRef == 0 )
PulseEvent(hEvent);
return;
}
#include
#include
#include ""ipfix.hxx""
extern HANDLE hEvent;
class CHello : public CHelloBase
{
public:
IPFIX(CLSID_CHello);
CHello(IUnknown *pUnk);
~CHello();
HRESULT __stdcall PrintSz(LPWSTR pwszString);
aggregatable
]
coclass CHello
{
cotype THello;
};
};
private:
static int cObjRef;
};
#include
#include
#include
#include
#include ""thlo.h""
#include ""pshlo.h""
#include ""shlo.hxx""
#include ""mycls.hxx""
int CHello::cObjRef = 0;
CHello::CHello(IUnknown *pUnk) : CHelloBase(pUnk)
{
cObjRef++;
return;
}
HRESULT __stdcall CHello::PrintSz(LPWSTR pwszString)
{
printf(""%ws\n"", pwszString);
return(ResultFromScode(S_OK));
}
CHello::~CHello(void)
{
// when the object count goes to zero, stop the server
cObjRef--;
if( cObjRef == 0 )
PulseEvent(hEvent);
return;
}
#include
nclude ""pshlo.h""
#include ""shlo.hxx""
#include ""mycls.hxx""
HANDLE hEvent;
int _cdecl main(
int argc,
char * argv[]
) {
ULONG ulRef;
DWORD dwRegistration;
CHelloCF *pCF = new CHelloCF();
hEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
// Initialize the OLE libraries
CoInitializeEx(NULL, COINIT_MULTITHREADED);
CoRegisterClassObject(CLSID_CHello, pCF, CLSCTX_LOCAL_SERVER,
REGCLS_MULTIPLEUSE, &dwRegistration);
// wait on an event to stop
WaitForSingleObject(hEvent, INFINITE);
// revoke and release the class object
CoRevokeClassObject(dwRegistration);
ulRef = pCF->Release();
// Tell OLE we are going away.
CoUninitialize();
return(0); }
extern CLSID CLSID_CHello;
extern UUID LIBID_CHelloLib;
CLSID CLSID_CHello = { /* 2573F891-CFEE-101A-9A9F-00AA00342820 */
0x2573F891,
0xCFEE,
0x101A,
{ 0x9A, 0x9F, 0x00, 0xAA, 0x00, 0x34, 0x28, 0x20 }
};
UUID LIBID_CHelloLib = { /* 2573F890-CFEE-101A-9A9F-00AA00342820 */
0x2573F890,
0xCFEE,
0x101A,
nclude
#include
#include
#include
#include
#include ""pshlo.h""
#include ""shlo.hxx""
#include ""clsid.h""
int _cdecl main(
int argc,
char * argv[]
) {
HRESULT hRslt;
IHello *pHello;
ULONG ulCnt;
IMoniker * pmk;
WCHAR wcsT[_MAX_PATH];
WCHAR wcsPath[2 * _MAX_PATH];
// get object path
wcsPath[0] = '\0';
wcsT[0] = '\0';
if( argc > 1) {
mbstowcs(wcsPath, argv[1], strlen(argv[1]) + 1);
wcsupr(wcsPath);
}
else {
fprintf(stderr, ""Object path must be specified\n"");
return(1);
}
// get print string
if(argc > 2)
mbstowcs(wcsT, argv[2], strlen(argv[2]) + 1);
else
wcscpy(wcsT, L""Hello World"");
printf(""Linking to object %ws\n"", wcsPath);
printf(""Text String %ws\n"", wcsT);
// Initialize the OLE libraries
hRslt = CoInitializeEx(NULL, COINIT_MULTITHREADED);
if(SUCCEEDED(hRslt)) {
hRslt = CreateFileMoniker(wcsPath, &pmk);
if(SUCCEEDED(hRslt))
hRslt = BindMoniker(pmk, 0, IID_IHello, (void
CEEDED(hRslt)) {
// print a string out
pHello->PrintSz(wcsT);
Sleep(2000);
ulCnt = pHello->Release();
}
else
printf(""Failure to connect, status: %lx"", hRslt);
// Tell OLE we are going away.
CoUninitialize();
}
return(0);
}
초보 해커 (Apprentice Hacker)
=============================
#!/usr/local/bin/perl
$msg=""Hello, world.\n"";
if ($#ARGV >= 0) {
while(defined($arg=shift(@ARGV))) {
$outfilename = $arg;
open(FILE, "">"" . $outfilename) || die ""Can't write $arg: $!\n"";
print (FILE $msg);
close(FILE) || die ""Can't close $arg: $!\n"";
}
} else {
print ($msg);
}
1;
경력 해커 (Experienced Hacker)
==============================
#include
#define S ""Hello, World\n""
main(){exit(printf(S) == strlen(S) ? 0 : 1);}
숙련된 해커 (Seasoned Hacker)
==============================
% cc -o a.out ~/src/misc/hw/hw.c
구루(지존) 해커 (Guru Hacker)
=============================
% cat
Hello, world.
^D
신임 관리자 (New Manager)
=========================
10 PRINT ""HELLO WORLD""
20 END
중견 관리자 (Middle Manager)
============================
mail -s ""Hello, world."" bob@b12
밥, ""Hello, world.""를 출력하는 프로그램 소스를 좀 보내주겠나?
내일까지 부탁하네.
^D
고위 관리자 (Senior Manager)
============================
% zmail jim
""Hello, world."" 프로그램이 오늘 오후까지 필요함.
최고 경영자 (Chief Executive)
=============================
% letter
letter: Command not found.
% mail
To: ^X ^F ^C
% help mail
help: Command not found.
% damn!
!: Event unrecognized
% logout
웹 프로그래머의 Hello world
=============================
< HTML >
< HEAD >
< META NAME=""GENERATOR"" Content=""Microsoft Visual Studio 6.0"" >
< TITLE >Hello World Sample< /TITLE >
< SCRIPT ID=clientEventHandlersJS LANGUAGE=javascript >
< !--
function window_onload() {
alert(""Hello world!!"");
}
// -->
< /SCRIPT >
< /HEAD >
< BODY LANGUAGE=javascript onload=""return window_onload()"" >
< H1 >Hello World Sample< /H1 >
< /BODY >
< /HTML >
돈 못 벌어도 좋다. 즐겁게 살면 된다.
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