超衫！不同人寫的HelloWorld程序

High School/Jr.High


10 PRINT "HELLO WORLD"
20 END




First year in College


program Hello(input, output)
begin
writeln('Hello World')
end.




Senior year in College


(defun hello
(print
(cons 'Hello (list 'World))))




New professional


#include <stdio.h>

void main(void)
{
  char *message[] = {"Hello ", "World"};
  int i;
  for(i = 0; i < 2; ++i)
  printf("%s", message[i]);
  printf("/n");
}




Seasoned professional


#include <iostream.h>
#include <string.h>
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 << endl;
   return(0);
}




System Administrator


#include <stdio.h>
#include <stdlib.h>
main()
{
  char *tmp;
  int i=0;
  /* on y va bourin */
  tmp=(char *)malloc(1024*sizeof(char));
  while (tmp[i]="Hello Wolrd"[i++]);
  /* Ooopps y'a une infusion ! */
  i=(int)tmp[8];
  tmp[8]=tmp[9];
  tmp[9]=(char)i;
  printf("%s/n",tmp);
}



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;



Experienced Hacker


#include <stdio.h>
#include <string.h>
#define S "Hello, World/n"
main(){exit(printf(S) == strlen(S) ? 0 : 1);}




Seasoned Hacker


% cc -o a.out ~/src/misc/hw/hw.c
% a.out
Hello, world.




Guru Hacker


% cat
Hello, world.



New Manager (do you remember?)


10 PRINT "HELLO WORLD"
20 END




Middle Manager


mail -s "Hello, world." bob@b12
Bob, could you please write me a program that prints "Hello, world."?
I need it by tomorrow.
^D




Senior Manager


% zmail jim
I need a "Hello, world." program by this afternoon.



Chief Executive


% letter
letter: Command not found.
% mail
To: ^X ^F ^C
% help mail
help: Command not found.
% damn!
!: Event unrecognized
% logout


Research Scientist


        PROGRAM HELLO
        PRINT *, 'Hello World'
        END


Older research Scientist


        WRITE (6, 100)
    100 FORMAT (1H ,11HHELLO WORLD)
        CALL EXIT
        END