Extended Hello World

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#include<stdio.h>

int main(int argc, char* argv[])
{
    printf("Hello world!\n");
    return 0;
}

#include<iostream>

using namespace std;

int main(int argc, char* argv[])
{
    cout<<"Hello world!"<<endl;
    return 0;
}

package HelloWorld;

public class HelloWorld
{
    public static void main(String[] args) {
        System.out.println("Hello world!");
    }
}

using System;
namespace HelloWorld
{
    public class HelloWorld
    {
        public static void Main() {
            Console.WriteLine("Hello world!");
        }
    }
}

#!/usr/bin/perl -w

use strict;

print("Hello world!\n");

#!/usr/bin/env python

print "Hello world!"

#!/usr/bin/env python3.0

print("Hello world!")

#!/usr/bin/ruby

puts 'Hello world!'

<?php
  echo "Hello world!\n";
?>

module HelloWorld where

main = putStrLn "Hello world!"

SELECT "Hello world!";

收集了一些其他的。未验证：

program HelloWorld;

begin
  writeln('Hello world!');
end.

(princ "Hello World!")

(display "Hello world!")

 print "Hello world!\n";

print_endline "Hello world!";;

PRINT *,"Hello World!"
END

with Ada.Text_IO; 
 
procedure Hello is
begin
  Ada.Text_IO.Put_Line("Hello, world!");
end Hello;

Transcript show: 'Hello, world!'.

'Hello World!'

IDENTIFICATION DIVISION.
PROGRAM-ID. HELLO-WORLD.
PROCEDURE DIVISION.
MAIN.
    DISPLAY 'Hello, world.'.
    STOP RUN.

标准输出(, “世界你好!”)

#!/usr/bin/env cpython

写 "世界你好"