Hello World程序样例

关于与「Hello World程序样例」標題相近或相同的条目，請見「Hello World (消歧义)」。

以下是用不同语言写成的Hello World程序的列表：

Hello World的正確輸出示範

打印到终端

ActionScript

trace("Hello, world!"); 

^[1]

Ada

with TEXT_IO; procedure HELLO is begin TEXT_IO.PUT_LINE ("Hello, world!"); end HELLO; 

^[1]

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 

^[1]

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作業系統（NASM）

[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 

AutoIt

MsgBox(1,'','Hello, world!') 

AWK

BEGIN { print "Hello, world!" } 

^[1]

Bash (或类似shell)

 echo 'Hello, world!' 

或者：

 printf 'Hello, world!\n' 

^[1]

BASIC

传统版 BASIC（例如 GWBASIC）：

10 PRINT "Hello, world!" 20 END 

或：

10 PRINT "Hello, world!" 

或在提示符輸入：

? "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

#include <stdio.h> int main(void) {  printf("Hello, world!\n");  return 0; } 

或者：

#include <stdio.h> int main(void) {  puts("Hello, world!");  return 0; } 

^[1]

CoffeeScript

console.log 'Hello, world!' 

或者：

alert 'Hello, world!' 

C++

#include <iostream> int main() {  std::cout << "Hello, world!" << std::endl;  return 0; } 

或者：

#include <iostream> using namespace std; int main() {  cout << "Hello, world!" << endl;  return 0; } 

^[1]

C++/CLI

int main() {  System::Control::WriteLine("Hello, world!"); } 

C# (C Sharp)

using System class HelloWorldApp {  static void Main(string[] args)  {  Console.WriteLine("Hello, world!");  } } 

^[1]

或者（僅用於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. 

^[1]

Common Lisp

;直接輸出 "Hello world!"   ;或者 (format t "Hello world!~%") 

^[1]

DOS批处理

@echo Hello, world!

對於MS-DOS 3.0或更低版本：

echo off cls echo Hello, world!

Linux Shell

echo Hello, world!

^[1]

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 

^[1]

Erlang

 -module(hello). -export([hello_world/0]). hello_world() -> io:fwrite("Hello, World!\n"). 

Flowgorithm

主条目：Flowgorithm (programming language)

Forth

." Hello, world!" CR 

^[1]

Fortran

 WRITE(*,*) 'Hello, world!'  STOP  END 

^[1]

Go

package main import "fmt" func main() {  fmt.Println("Hello, world!") } 

HQ9+

Hello World

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

^[1]

Java

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

JavaScript

该代码适用于浏览器控制台以及Node.js等服务器端运行环境。

console.log("Hello, World!"); 

Julia

println("Hello, world!") 

Lisp

;直接输出 "hello, world" ;或者 (format t "hello, world~%") 

Lua

print "Hello, world!" 

^[1]

Malbolge

(=<`#9]~6ZY327Uv4-QsqpMn&+Ij"'E%e{Ab~w=_:]Kw%o44Uqp0/Q?xNvL:`H%c#DD2^WV>gY;dts76qKJImZkj

Matlab

disp('hello world!') 

Mathematica

 Hello[] := Print["Hello World!"] Hello[] 

^[1]

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!' .> 

Objective-C

#import <Foundation/Foundation.h> int main(int argc, const char * argv[]) {  @autoreleasepool {  NSLog(@"Hello, World!");  }  return 0; } 

^[1]

OCaml

let main () = print_endline "Hello world!";; 

Pascal

program Hello;{此行可以省略} begin  writeln('Hello, world!'); end. 

^[1]

Perl

#!/usr/bin/env perl print "Hello, world!\n"; 

Perl 5.10（含）以後版本:

#!/usr/bin/env perl use 5.010; say "Hello, world!"; 

^[1]

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

適用於Python 2：

#!/usr/bin/env python print "Hello, world!" 

適用於Python 2.6, 2.7, 3：

#!/usr/bin/env python print("Hello, world!") 

^[1]

用彩蛋输出Hello World：

#!/usr/bin/env python import __hello__ 

REXX

say "Hello, world!" 

Ruby

#!/usr/bin/ruby puts "Hello, world!" 

^[1]

Rust

fn main() {  println!("Hello, world!"); } 

Sbyke Laborana

INIT min:1001 Om:"Hello, world!" 

Scheme

(display "Hello, world!") (newline) 

Scratch

主条目：Scratch (程式語言)

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

第一種

create table MESSAGE (TEXT char(15)); insert into MESSAGE (TEXT) values ('Hello, world!'); select TEXT from MESSAGE; drop table MESSAGE; 

第二種

select 'hello, world'; 

第三種

print 'hello,world!' 

Swift

適用於Swift 1.x：

println("Hello, World!") 

適用於Swift 2.x, 3：

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

图形用户界面

AppleScript

display dialog "Hello, world!" 

或者：

display alert "Hello, world!" 

Delphi

program HelloWorld; uses  Dialogs; begin  ShowMessage('Hello, World!'); end. 

Nuva

<. System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) .> 

Visual Basic

Sub Main() MsgBox "Hello, world!" End Sub

Visual FoxPro

? "Hello, world!"

X11

用一个程序

xmessage 'Hello, world!' 

使用Qt

#include <QApplication> #include <QLabel> int main(int argc, char *argv[]) {  QApplication app(argc, argv);  QLabel label("Hello, world!");  label.show();  return app.exec(); } 

C 和 GTK+

#include <gtk/gtk.h> int 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 <iostream> #include <gtkmm/main.h> #include <gtkmm/button.h> #include <gtkmm/window.h> 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：

<html> <head> <title>Hello World</title> </head> <body> HelloWorld Program says: <applet code="HelloWorld.class" width="600" height="100"> </applet> </body> </html>

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：

// 弹出对话框 alert("Hello, World!"); // 在页面上显示 document.write("Hello, World!"); 

用于WSH中：

WScript.Echo("Hello, World!"); 

作为服务器端（Node.js）：启动后，需要在浏览器中访问“http://127.0.0.1:8000/”查看。

const http = require('http'); http.createServer((request, response) => {  response.writeHead(200, { 'Content-Type': 'text/plain' });  response.end('Hello World!'); }).listen(8000); console.log('Server running at http://127.0.0.1:8000/'); 

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 

SPARQL

SELECT ?h WHERE { VALUES ?h { "Hello World" } } 

^[2]

XAML

 <Page  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"  x:Class="XAMLSample.Page1"  >  <Button Click="HelloWorld" Name="Button1">Click Here</Button>  </Page> 

接著使用 C# 建置

 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, ) 

服务器端

以下为Web服务端示例程序，程序启动后，需要用浏览器访问特定地址来查看结果。

ASP

<% Response.Write("Hello, world!") %>

^[1]

或者簡單地寫成：

<%= "Hello, world!" %>

HTML

<!-- 直接輸出... --> Hello World <!-- 或者 --> <html> <head> <title> Hello World </title> </head> <body> Hello World </body> </html>

^[1]

Go

package main import (  "fmt"  "net/http" ) func helloHandler(w http.ResponseWriter, r *http.Request) {  fmt.Fprintf(w, "hello world") } func main() {  http.HandleFunc("/", helloHandler)  http.ListenAndServe("0.0.0.0:8000", nil) } 

JSP

<%  out.print("Hello, world!"); %> 

^[1]

或者简单地写成：

<%="Hello, world!"%> 

JavaScript

以下为Node.js环境：

const http = require('http'); http.createServer((request, response) => {  response.writeHead(200, { 'Content-Type': 'text/plain' });  response.end('Hello World!'); }).listen(8000); console.log('Server running at http://127.0.0.1:8000/'); 

PHP

以下代码既可以作为服务器端运行，显示在用户浏览器上，也可以在终端中直接运行，输出到终端中：

<?php echo 'Hello, world!'; // 或者 print 'Hello, world!'; ?> 

或者

<?= "Hello World!"?> 

參見

• Hello World

參考文獻

1. The Hello World Collection （页面存档备份，存于互联网档案馆） helloworldcollection.de [2014-12-12]
2. leachim6/hello-world/ （页面存档备份，存于互联网档案馆） GitHub [2021-06-20]

外部連結

• GitHub上的Hello World程序样例集 （页面存档备份，存于互联网档案馆）