hello world作为所有编程语言的起始阶段，占据着无法改变的地位，所有中/英/法/德/美……版本的编程教材中，hello world总是作为第一个TEST记录于书本之中，所有的编程第一步就在于此了！经典之中的经典！
hello world！
"Hello, world"程序是指在计算机屏幕上输出Hello, world这行字符串的计算机程序，“hello, world”的中文意思是“世界，你好”。这个例程在Brian Kernighan和Dennis M. Ritchie合著的The C Programming Language中被使用而广泛流行。因为它的简洁、实用，并包含了一个程序所应具有的一切，因此为后来的编程类图书的作者提供了范例，一直待续到今。
hello world程序全集
ActionScript
trace("Hello, world!");
Ada
with TEXT_IO;
procedure HELLO is
begin
TEXT_IO.PUT_LINE ("Hello, world!");
end HELLO;
汇编语言
x86 CPU，GNU/Linux，NASM
section .data msg db 'Hello, world!',0xA len equ $-msg section .text global _start _start: mov edx,len mov ecx,msg mov ebx,1 mov eax,4 int 0x80 mov ebx,0 mov eax,1 int 0x80
x86 AT&T、Gas
.data msg : .string "Hello, world!\n" len = . - msg .text .global _start _start: movl $len, %edx movl $msg, %ecx movl $1 , %ebx movl $4 , %eax int $0x80 movl $0 , %ebx movl $1 , %eax int $0x80
x86 CPU、Windows、MASM32
.386 .model flat,stdcall option casemap:none ;========================================================== include windows.inc include user32.inc includelib user32.lib include kernel32.inc includelib kernel32.lib ;========================================================== .data szCaption db "A MessageBox!", 0 szText db "Hello, world!", 0 ;========================================================== .code start: invoke MessageBox, NULL, addr szText, addr szCaption, MB_OK invoke ExitProcess, NULL ;========================================================== end start
8086操作系统
[BITS 16] org 0x7c00 mov ax,cs mov ds,ax mov es,ax call DispStr jmp $;End Hear DispStr: mov ax, BootMessage mov bp, ax mov cx, 16;How long is the String mov ax, 0x1301 mov bx, 0x000c mov dl, 0 int 0x10 ret BootMessage: db "Hello, world!" times 510-($-$$) db 0x0 dw 0xaa55; Bootable Mark
ASP
<% Response.Write("Hello, world!") %>
或者简单地写成：
<%= "Hello, world!" %>
AutoIt
MsgBox(1,'','Hello, world!')
AWK
BEGIN { print "Hello, world!" }
Bash (or sh)
echo 'Hello, world!'
或者：
printf 'Hello, world!\n'
BASIC
传统版 BASIC（例如 GWBASIC）：
10 PRINT "Hello, world!" 20 END
或在提示符输入：
? "Hello, world!"
现代版 BASIC（例如 Quick BASIC）：
PRINT "Hello, world!"
以下的语句，在 Quick BASIC 中同样有效：
? "Hello, world!"
BCPL
GET "LIBHDR"
LET START () BE
$(
WRITES ("Hello, world!*N")
$)
Brainfuck
++++++++++[>+++++++>++++++++++>+++>+<<<<-] >++.>+.+++++++..+++.>++.<<+++++++++++++++. >.+++.------.--------.>+.>.
BlitzBasic
Print "Hello, world!" WaitKey
BOO
print "Hello, world!"
C
#includeint main(void) { printf("Hello, world!\n"); return 0; }
或者：
#includeint main(void) { puts("Hello, world!"); return 0; }
C++
#includeint main() { std::cout << "Hello, world!" << std::endl; return 0; }
或者：
#includeusing namespace std; int main() { cout << "Hello, world!" << endl; return 0; }
C++/CLI
int main()
{
System::Control::WriteLine("Hello, world!");
}
C# (C Sharp)
class HelloWorldApp
{
static void Main(string[] args)
{
System.Console.WriteLine("Hello, world!");
}
}
或者（仅用于Microsoft Windows）
class HelloWorldApp
{
[DllImport("user32.dll")]
static extern MessageBox(string title, string message);
public static void Main()
{
MessageBox(null, "Hello, world!");
}
}
或者（使用附加的Windows Forms）
using System.Windows.Forms;
class HelloWorldApp
{
public static void Main()
{
MessageBox.Show("Hello, world!");
}
}
COBOL
IDENTIFICATION DIVISION. PROGRAM-ID. HELLO-WORLD. ENVIRONMENT DIVISION. DATA DIVISION. PROCEDURE DIVISION. DISPLAY "Hello, world!". STOP RUN.
Common Lisp
;直接输出 "Hello world!"
;或者
(format t "Hello world!~%")
DOS批处理
@echo Hello, world!
对于MS-DOS 3.0或更低版本：
echo off cls echo Hello, world!
Linux Shell
echo Hello, world!
Eiffel
class HELLO_WORLD
creation
make
feature
make is
local
io:BASIC_IO
do
!!io
io.put_string("%N Hello, world!")
end -- make
end -- class HELLO_WORLD
Erlang
-module(hello).
-export([hello_world/0]).
hello_world() -> io:fwrite("Hello, World!\n").
Forth
." Hello, world!" CR
Fortran
WRITE(*,*) 'Hello, world!' STOP END
HTML
Hello WorldHello World Hello World
HQ9+
H INTERCAL PLEASE DO ,1 <- #13 DO ,1 SUB #1 <- #238 DO ,1 SUB #2 <- #112 DO ,1 SUB #3 <- #112 DO ,1 SUB #4 <- #0 DO ,1 SUB #5 <- #64 DO ,1 SUB #6 <- #238 DO ,1 SUB #7 <- #26 DO ,1 SUB #8 <- #248 DO ,1 SUB #9 <- #168 DO ,1 SUB #10 <- #24 DO ,1 SUB #11 <- #16 DO ,1 SUB #12 <- #158 DO ,1 SUB #13 <- #52 PLEASE READ OUT ,1 PLEASE GIVE UP
Java
public class Hello
{
public static void main(String[] args)
{
System.out.println("Hello, world!");
}
}
or in tinystruct2.0:
package tinystruct.examples;
import org.tinystruct.AbstractApplication;
import org.tinystruct.Application;
import org.tinystruct.ApplicationException;
import org.tinystruct.system.ApplicationManager;
public class hello extends AbstractApplication {
@Override
public void init() {
// TODO Auto-generated method stub
this.setAction("say", "say");
}
@Override
public String version() {
// TODO Auto-generated method stub
return null;
}
public String say(String words){
System.out.println(words);
return words;
}
/**
* @param args
* @throws ApplicationException
*/
public static void main(String[] args) throws ApplicationException {
// TODO Auto-generated method stub
// Praise to the Lord!
ApplicationManager.install(new hello());
// to print 'Hello World'
ApplicationManager.call("say/Hello World", null); // Hello World
// or...
Application app=ApplicationManager.get( hello.class.getName());
app.invoke("say", new Object[]{"Hello, World!
"}); // Hello, World!
app.invoke("say", new Object[]{"Bye!
"}); // Bye!
// or...
// http://localhost:8080/?q=say/Hello World
// https://github.com/m0ver/tinystruct2.0
}
}
JSP
<%
out.print("Hello, world!");
%>
或者简单地写成：
<%="Hello, world!"%>
Lisp
;直接输出 "hello, world" ;或者 (format t "hello, world~%")
Lua
print "Hello, world!"
Malbolge
('&%:9]!~}|z2Vxwv-,POqponl$Hjig%eB@@>}=
Metapost
beginfig(1); draw (0,0)--(0,10); draw (0,5)--(5,5); draw (5,0)--(5,10); draw (12,0)--(7,0)--(7,10)--(12,10); draw (12,5)--(7,5); draw (14,10)--(14,0)--(19,0); draw (21,10)--(21,0)--(26,0); draw (28,5)...(30.5,0)...(33,5)...(30.5,10)...cycle; draw (38,10)--(39.25,0)--(40.5,10)--(41.75,0)--(43,10); draw (45,5)...(47.5,0)...(50,5)...(47.5,10)...cycle; draw (52,0)--(52,10); draw (52,10)..(57,4)..(52,6.5); draw (52,5)--(57,0); draw (61,10)--(61,0)--(66,0); draw (68,10)--(68,0)..(73,5)..cycle; endfig; end
MIXAL
TERM EQU 19 the MIX console device number ORIG 1000 start address START OUT MSG(TERM) output data at address MSG HLT halt execution MSG ALF "MIXAL" ALF " HELL" ALF "O WOR" ALF "LD " END START end of the program
Nuva
<..直接输出..> Hello, world! <..或者..> <. // 不带换行 ? "Hello, world!" // 或者 // 带换行 ?? 'Hello, world!' .>
OCaml
let main () = print_endline "Hello world!";;
Pascal
program Hello;{此行可以省略}
begin
writeln('Hello, world!');
end.
Perl
#!/usr/bin/env perl print "Hello, world!\n";
Perl 5.10（含）以后版本:
#!/usr/bin/env perl use 5.010; say "Hello, world!";
PHP
<?php echo 'Hello, world!';//通常使用這個，比 print 少一個字元 print 'Hello, world!'; ?> 或者 <?= "Hello World!"?>
Pike
#!/usr/local/bin/pike
int main()
{
write("Hello, world!\n");
return 0;
}
PL/I
Test: procedure options(main);
declare My_String char(20) varying initialize('Hello, world!');
put skip list(My_String);
end Test;
Prolog
goal
write("hello,world!").
Python
适用于Python 2：
#!/usr/bin/env python
print "Hello, world!"
适用于Python 3：
#!/usr/bin/env python
print("Hello, world!")
REXX
say "Hello, world!"
Ruby
#!/usr/bin/ruby puts "Hello, world!"
Sbyke Laborana
INIT min:1001 Om:"Hello, world!"
Scheme
(display "Hello, world!") (newline)
sed
（需要至少一行输入） sed -ne '1s/.*/Hello, world!/p'
Seed7
$ include "seed7_05.s7i";
const proc: main is func
begin
writeln("Hello, world!");
end func;
Smalltalk
Transcript show: 'Hello, world!'
Small Basic
TextWindow.WriteLine("Hello, world!")
SNOBOL
OUTPUT = "Hello, world!" END
SQL
第一种
CREATE TABLE MESSAGE (TEXT CHAR(15));
INSERT INTO MESSAGE (TEXT) VALUES ('Hello, world!');
SELECT TEXT FROM MESSAGE;
DROP TABLE MESSAGE;
第二种
SELECT 'hello, world';
第三种
print 'hello,world!'
Tcl
#!/usr/local/bin/tcl puts "Hello, world!"
TScript
? "Hello, world!"
Turing
put "Hello, world!"
UNIX-style shell
程序中的/bin/sh可改为您使用的shell
#!/bin/sh echo 'Hello, world!'
bc
#!/usr/bin/bc -q print "Hello World" quit
dc
#!/usr/bin/env dc [Hello World]p
GUI
Delphi
program HelloWorld;
uses
Dialogs;
begin
ShowMessage('Hello, World!');
end.
Nuva
<.
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK'])
.>
Visual Basic
MsgBox "Hello, world!" 或者 Print "Hello, world!"
Visual FoxPro
? "Hello, world!"
X11
用一个程序
xmessage 'Hello, world!'
使用Qt
#include#include int main(int argc, char *argv[]) { QApplication app(argc, argv); QLabel label("Hello, world!"); label.show(); return app.exec(); }
C 和 GTK+
#includeint main(int argc, char * args[]) { GtkWidget * win, * label; gtk_init(& argc, & args); label = gtk_label_new("Hello, world!"); win = gtk_window_new(GTK_WINDOW_TOPLEVEL); gtk_container_add(GTK_CONTAINER(win), label); gtk_widget_show_all(); gtk_main(); return 0; }
用C++和gtkmm 2
#include#include #include #include using namespace std; class HelloWorld : public Gtk::Window { public: HelloWorld(); virtual ~HelloWorld(); protected: Gtk::Button m_button; virtual void on_button_clicked(); }; HelloWorld::HelloWorld() : m_button("Hello, world!") { set_border_width(10); m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); add(m_button); m_button.show(); } HelloWorld::~HelloWorld() {} void HelloWorld::on_button_clicked() { cout << "Hello, world!" << endl; } int main（int argc, char *argv[]） { Gtk::Main kit(argc, argv); HelloWorld helloworld; Gtk::Main::run(helloworld); }
Java
import java.awt.*;
import java.awt.event.*;
public class HelloFrame extends Frame
{
HelloFrame(String title)
{
super(title);
}
public void paint(Graphics g)
{
super.paint(g);
java.awt.Insets ins = this.getInsets();
g.drawString("Hello, World!", ins.left + 25, ins.top + 25);
}
public static void main(String args [])
{
HelloFrame fr = new HelloFrame("Hello");
fr.addWindowListener(
new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit( 0 );
}
}
);
fr.setResizable(true);
fr.setSize(500, 100);
fr.setVisible(true);
}
}
Java Applet
Java Applet用于HTML文件。
HTML代码：
Hello World HelloWorld Program says:
Java代码：
import java.applet.*;
import java.awt.*;
public class HelloWorld extends Applet
{
public void paint(Graphics g)
{
g.drawString("Hello, world!", 100, 50);
}
}
JavaScript
JavaScript是一种脚本语言。最广泛用于HTML文件中，也可以用在其它宿主环境下，比如Microsoft Windows 脚本宿主（WSH）和一些Web服务环境。
用于HTML中：
alert("Hello, World!");
//或者
document.write("Hello, World!");
用于WSH中：
WScript.Echo("Hello, World!");
PostScript
PostScript是一种专门用来创建图像的语言，常用于打印机。
/font /Courier findfont 24 scalefont font setfont 100 100 moveto (Hello World!) show showpage
XAML
using System; using System.Windows; using System.Windows.Controls; namespace XAMLSample { public partial class Page1 : Page { void HelloWorld(object sender, RoutedEventArgs e) { MessageBox.Show("Hello, world!"); } } }
易语言
.版本 2
.程序集 窗口程序集1
.子程序 __启动窗口_创建完毕
信息框
(“Hello, World!”, 0, )
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