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
#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; }
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; }
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
<!-- 直接輸出... --> Hello World <!-- 或者 --> <html> <head> <title> Hello World </title> </head> <body> Hello World </body> </html>
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[]{"<h1>Hello, World!</h1>"}); // <h1>Hello, World!</h1> app.invoke("say", new Object[]{"<h2>Bye!</h2>"}); // <h2>Bye!</h2> // or... // http://localhost:8080/"htmlcode"><% 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@@>}=<M:9wv6WsU2T|nm-,jcL(I&%$#" `CB]V"Fhg${z@>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; endMIXAL
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 programNuva
<..直接输出..> Hello, world! <..或者..> <. // 不带换行 "Hello, world!" // 或者 // 带换行 "htmlcode">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
<"Hello World!""htmlcode">#!/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!" ENDSQL
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" quitdc
#!/usr/bin/env dc [Hello World]pGUI
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 <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:
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 showpageXAML
<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> 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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《魔兽世界》大逃杀!60人新游玩模式《强袭风暴》3月21日上线
暴雪近日发布了《魔兽世界》10.2.6 更新内容,新游玩模式《强袭风暴》即将于3月21 日在亚服上线,届时玩家将前往阿拉希高地展开一场 60 人大逃杀对战。
艾泽拉斯的冒险者已经征服了艾泽拉斯的大地及遥远的彼岸。他们在对抗世界上最致命的敌人时展现出过人的手腕,并且成功阻止终结宇宙等级的威胁。当他们在为即将于《魔兽世界》资料片《地心之战》中来袭的萨拉塔斯势力做战斗准备时,他们还需要在熟悉的阿拉希高地面对一个全新的敌人──那就是彼此。在《巨龙崛起》10.2.6 更新的《强袭风暴》中,玩家将会进入一个全新的海盗主题大逃杀式限时活动,其中包含极高的风险和史诗级的奖励。
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