程序员的进化从学生到首席执行官
/*-------------------------------------------
程序员的进化--从学生到首席执行官
翻译 2002 王咏刚 http://www.contextfree.net/
转译自 Omri\'s Computer Humor Page
http://www.cs.bgu.ac.il/~omri/Humor/
-------------------------------------------*/
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中学阶段
10 PRINT \"HELLO WORLD\"
20 END
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大学一年级
program Hello(input, output)
begin
writeln(\'Hello World\')
end.
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大学高年级
(defun hello
(print
(cons \'Hello (list \'World))))
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初级程序员
#include
void main(void)
{
char *message[] = {\"Hello \", \"World\"};
int i;
for(i = 0; i < 2; ++i)
printf(\"％s\", message[i]);
printf(\"\n\");
}
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编程老鸟
#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)
{
return(stream << 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 << end
return(0);
}
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编程高手
[
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
importlib(\"actimp.tlb\");
importlib(\"actexp.tlb\");
importlib(\"thlo.tlb\");
[
uuid(2573F891-CFEE-101A-9A9F-00AA00342820),
aggregatable
]
coclass CHello
{
cotype THello;
};
};
#include \"ipfix.hxx\"
extern HANDLE hEvent;
class CHello : public CHelloBase
{
public:
IPFIX(CLSID_CHello);
CHello(IUnknown *pUnk);
~CHello();
HRESULT __stdcall PrintSz(LPWSTR pwszString);
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 \"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,
{ 0x9A, 0x9F, 0x00, 0xAA, 0x00, 0x34, 0x28, 0x20 }
};
#include
#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 **)&pHello);
if(SUCCEEDED(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);
}
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黑客初阶
#!/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;
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黑客有成
#include
#define S \"Hello, World\n\"
main(){exit(printf(S) == strlen(S) ? 0 : 1);}
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黑客高手
％ cc -o a.out ~/src/misc/hw/hw.c
％ a.out
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黑客大虾
％ cat
Hello, world.
^D
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初级经理
10 PRINT \"HELLO WORLD\"
20 END
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中级经理
mail -s \"Hello, world.\" bob@b12
Bob, could you please write me a program that prints \"Hello, world.\"?
I need it by tomorrow.
^D
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高级经理
％ zmail jim
I need a \"Hello, world.\" program by this afternoon.
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首席执行官
％ letter
letter: Command not found.
％ mail
To: ^X ^F ^C
％ help mail
help: Command not found.
％ damn!
!: Event unrecognized
％ logout
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