“Hello, World!”程序是一个只在计算机屏幕上打印出“Hello, World!”(英语,意为“世界,你好!”)字串的计算机程序。该程序通常是计算机程序设计语言的初学者所要学习编写的第一个程序。它还可以用来确定该语言的编译器、程序开发环境以及运行环境已经正确安装。 / f%mYL
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将Hello World程序作为第一个学写的程序,现在已经成为一种传统。该程序最早出现在由Brian Kernighan和Dennis Ritchie写的计算机程序设计教程《C语言程序设计》。 _(W@FS
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以下是用不同语言写成的Hello World程序的几个例子: jLVJ+mu
Ada 1W^hPY
with Ada.Text_Io; use Ada.Text_Io; y<)TYr
procedure Hello is vOQ%f?%G\
begin 8|u4xf<
Put_Line ("Hello, world!"); Z;BS@e
end Hello; |P|B"I<?
Bo 35L:r|
PwY/VGT
汇编语言 'ofj1%c
dzVi ~wt_&
x86 CPU,DOS,TASM U|^xr~q!f-
MODEL SMALL $=aO*i
IDEAL g=*jKSZ
STACK 100H 5&]5*;Bv J
3h:j.8Z
DATASEG =ily=j"hK
HW DB 'Hello, world!$' 20:F$d
IqOg{#sm
CODESEG .sMs_ 5D
MOV AX, @data u9lZHh#V-
MOV DS, AX Fq9YhR
MOV DX, OFFSET HW Y.:R-|W
MOV AH, 09H sI ,!+
INT 21H $Y/9SD
MOV AX, 4C00H Jt~Ivn,
INT 21H hI[}
-
END 3jmo[<p*x
.@1+}0
-m@o\9Ic
x86 CPU,GNU/Linux,NASM uuzV,q
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). .*O*@)}Ud
;Enter this into "hello.asm" then type: L/3A g*
]
;"nasm -f elf hello.asm" B#sCB&(
;"ld hello.o -o hello"
q+P@2FL
;"./hello" _Q V=3UWP
Di9RRHn&q
section .data ;data section declaration U82a]i0
msg db 'Hello World!',0AH #Z&/w.D2
len equ $-msg ;string length 1? >P3C
nt.LiM/L
section .text ;code section declaration QX,$JM3
global _start ;entry point (start of execution) kZ]H[\Fs
_start: mov edx,len ;string length MP]<m7669*
mov ecx,msg ;string start =BJLj0=N
mov ebx,1 ;file handle: stdout %sa?/pjK
mov eax,4 ;sys_write `Sod]bO
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int 80h ;kernel system call 4u{S?Ryy
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+}
mov ebx,0 ;return value m5Bf<E,c
mov eax,1 ;sys_exit bR\7j+*&
int 80h ;kernel system call XS<>0YM
]5%0EE64
sdp&D@
x86 CPU,Windows,MASM32 Psb !Z(
.386 Pt]>AW;i
.model flat,stdcall K<JzIuf&
option casemap:none ffKgVQux
;Include 文件定义 s%[F,hQRk
include windows.inc | /.J{=E0K
include user32.inc ]a3$hAcj6"
includelib user32.lib AFLtgoXn:
include kernel32.inc q0sf\|'<}
includelib kernel32.lib dFg>uo
;数据段 JWVV?~1
.data JK,MK|
szCaption db 'A MessageBox!',0
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szText db 'Hello,world!',0 V&Y`?Edc
;代码段 `Rq=:6U;3
.code _nGx[1G( 5
start: E)b$;'
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK R2bq hSlF
invoke ExitProcess,NULL bM W|:rn
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> F.s$Y+c!6
end start ]8G 'R-8}
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AWK ,p2UshOmd
BEGIN { print "Hello, world!" } u6iW1,#
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BASIC !R{IEray
传统版BASIC(例如GWBASIC): kG^76dAQL
\!KE_7HRu
10 PRINT "Hello, world!" B|`?hw@g+
20 END |x[I!I7.F
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或在提示符输入: iTxWXij
_"DC)
?"Hello, world!":END @N'n>8Wn
[9E~=A#
现代版BASIC(例如Quick BASIC): ,BdObx
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Print "Hello, world!" $QbJT`,mr
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以下的语句在Quick BASIC中同样有效: c
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gC7!cn
? "Hello,world!"
manw;`Q
RB>=#03
srS!X$cec
BCPL A|biOz
GET "LIBHDR" )k<cd.MX
U1`5P!ov
LET START () BE 7H
H
$( ~E}kwF
WRITES ("Hello, world!*N") %0\@\fC41
$) V 6}5^W
6@]o,O
O>`k@X@9/
Befunge kUBE+a6#
"!dlrow olleH">v 4:MvC^X~z
, Jb,54uN
^_@ .G/Rh92
*tjaac;z<J
@f[-
Brainfuck '1u?-2
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< i?L=8+9f
+++++++++++++++.>.+++.------.--------.>+.>. ,%!m%+K9a
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C XJul~"
#include <stdio.h> T!/o^0w
xd?=#d
int main(void) NKY|Z\
{ i0M6;W1T
printf("Hello, world!\n"); B>{%$@4
return 0; %:26v
}
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C^=3
eP~bl
C++ 4Kqo>|C
#include <iostream>
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Y S3~sA
int main() 2EgvS!"
{ @@R Mm$
std::cout << "Hello, world!" << std::endl; ]*dYX=6
return 0; lpT&v;$`
} fY]"_P
k(H&Af+
AKk=XAG W
C++/CLI eKLvBa-{@
int main() }6Pbjm *
{ AA\)BNM
System::Console::WriteLine("Hello, world!"); <B@NSj
} F .S^KK
m.++nF
iEn:Hh)
C# (C Sharp) `wa;@p+j8
class HelloWorldApp Ry95a%&/s
{ NuOA'e+i
public static void Main() 3a:Hx|
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{ _2KIe(,;
System.Console.WriteLine("Hello, world!"); 'Agw~
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} w|dfl *
} ss-W[|cHU
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>_W*
e&sH<hWR
COBOL e5mu-
IDENTIFICATION DIVISION. <^s31.&p
PROGRAM-ID. HELLO-WORLD. $yU
5WEX
*+v*VH
ENVIRONMENT DIVISION. I<}% L
V
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DATA DIVISION. zk<V0NJIL*
stG
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PROCEDURE DIVISION. Cm;cmPPl
DISPLAY "Hello, world!". |!FQQ(1b
STOP RUN. l/3=o}8q
G=y~)B}
}NDl~5
Common Lisp 2G.y.#W
(format t "Hello world!~%") _DxHJl
cs6oD!h
6UCF w>
DOS批处理 0"7+;(\1Rk
@echo off ?22U0UF
echo "Hello, world!" s AFn.W
&~2m@X(o
3JC uM_y
Eiffel 1 b7jNkQ
class HELLO_WORLD :]:)c8!6
iw#~xel<ez
creation Hn >VPz+I
make =%8 yEb*5#
feature qu^g~"s
make is #^$_/Q#C
local Oj-\
io:BASIC_IO ?Uq"zq
do ;6 @sC[
!!io HGAi2+&
io.put_string("%N Hello, world!") LqYyIbsvf
end -- make Tdh(J",d
end -- class HELLO_WORLD S ,F[74K
fTXip)n!r
g} !{_z
Erlang \me5"ZU
-module(hello). -]wEk%j
-export([hello_world/0]). )l9KDObis
ECt<\h7}
hello_world() -> io:fwrite("Hello, World!\n"). YE@yts
e-*@R#x8+
r 10VFaly
Forth CHTK.%AQH!
." Hello, world!" CR c:7V..
Dtd~}-_Q
.@fA_8
Fortran mrr]{K
WRITE(*,10) ]I)ofXu]
10 FORMAT('Hello, World!') W,EIBgR(R5
STOP Yuw:W:wY
END &|Wqzdo?#
7j)ky2r#
*%/O (ohs@
HTML
!p$p 7
<HTML> _<RTes
<HEAD> PR5N:Bw
<TITLE> Hello World! </TITLE> 6=n|Ha
</HEAD> eP"B3Jw
<BODY>
@_f^AQ
<p>Hello World!</p> 8#;=>m%
</BODY> @<eKk.Y?+
</HTML> /-v ;
9h|6"6
|!]
"y<
HQ9+ p _[,P7
H FzEs1hpl
9287&+,0r
^vMlRt;
INTERCAL pl%!AY'oE>
PLEASE DO ,1 <- #13 <y8oYe_!
DO ,1 SUB #1 <- #238 Tr_gc~
DO ,1 SUB #2 <- #112 ^2}HF/
DO ,1 SUB #3 <- #112 Ho&:Zs
DO ,1 SUB #4 <- #0 .;g kV-]
DO ,1 SUB #5 <- #64 {ol7*% u
DO ,1 SUB #6 <- #238 s.p>
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DO ,1 SUB #7 <- #26
7LU^Xm8
DO ,1 SUB #8 <- #248 |'-aR@xJ
DO ,1 SUB #9 <- #168 !#pc@(rE
DO ,1 SUB #10 <- #24 ef^GJTv&k
DO ,1 SUB #11 <- #16 pMT7 /y-
DO ,1 SUB #12 <- #158 QL8C!&=
DO ,1 SUB #13 <- #52 7Tk//By7
PLEASE READ OUT ,1 sJx_X8
PLEASE GIVE UP fD@d.8nXd
{[#)Q.2
F(n<:TvlK
Java ;U>nj],uv
public class Hello D2}^TIg
{ CPZ,sWg5
public static void main(String[] args) 3}FZg
w .
{
>=97~a+.
System.out.println("Hello, world!"); |;NfH|43;
} *-PjcF}Y
} }Q4Vy
?|kbIZP(
Uk] jy>7;!
JSP V<#KFm$>C
<% )1!<<;@0
out.print("Hello, world!"); lS9S7`
%> @=l6zd@
4_5f4%S
e1a\--
MIXAL
O6NH
TERM EQU 19 the MIX console device number .Pj<Pe
ORIG 1000 start address !O%!A<3
START OUT MSG(TERM) output data at address MSG %:'G={G`QH
HLT halt execution ('J@GTe@xj
MSG ALF "MIXAL" aC`>~uX##V
ALF " HELL" Vm<_e
ALF "O WOR" 7(]F+\A3
ALF "LD " <&Xl b0
END START end of the program jUM'f24
l,hOnpm9
m6[}KkW
Nuva ,V,mz?d^9
<..直接输出..> H2%Qu<Kg2
Hello, world! *VhEl7
OY}FtGy
<..或者..> C0[U}Y/r2
<4.Exha;=
<. !DOyOTR&3
// 不带换行 by'KJxl[
? "Hello, world!" .x%w#
h_?`ESI~
// 或者 >)<?
}P?e31@:
// 带换行 1W'Ai"DLw
?? 'Hello, world!' SbGdcCB
.> m|W17LhW{
]UUa/ep-
mq[=,,#
OCaml 0Qa0
let main () = &PE%tm
print_endline "Hello world!";; Lq5xp<
60^j<O
)XN%pn
Pascal -B#1+rUW
program Hello; 9no<;1+j,
begin WF`%7A39Af
writeln('Hello, world!'); E>s+"y
end. s 4_Dqm
Zpg;hj5_
\"(?k>]E
Perl iGhvQmd(/*
#!/usr/local/bin/perl e:Y+-C5
print "Hello, world!\n"; H9)n<r
rb-ao\
,:PMS8pS
PHP I9zs
<?php A]!0Z:{h%
print("Hello, world!"); 9oJM?&i
?> <b
H*f w
nC p/.]Y*
'Wnh1|z
Pike $6mShp9(
#!/usr/local/bin/pike *@' 'OyL
int main() r\Y,*e
{ |gI>Sp%Fu
write("Hello, world!\n"); pFS@yHs
return 0; Uo >aQk
} $x'jf?zs!
pL1ABvBB
;Va(l$zD
PL/I Q&:)D7m\)S
Test: procedure options(main); :
B&~q$
declare My_String char(20) varying initialize('Hello, world!'); c ^ds|7i]a
put skip list(My_String); Axsezr/
end Test; jKmjZz8L]%
D/Ki^E
/al56n
Prolog ]]K?Q
)9x
goal x9>$197
write("hello,world!"). |K1S(m<F
a6n@
>
pb}@\;:
Python nrKAK^
#!/usr/local/bin/python 1"Oe*@`pV
print "Hello, world!" &Tt7VYJfIV
-+@N/d5
ij0I!ilG4
REXX g7]S
say "Hello, world!" U!q2bF<@
x
t-s"A
UUDUda
Ruby +@?Q "B5u}
#!/usr/bin/ruby \JM6zR^Ef
print "Hello, world!\n" m8F$h-
[T_[QU:A
aeUgr!
Scheme jdG2u
p
(display "Hello, world!") HSNj
(newline) G,!j P2S
^ slIR!L
Dst;sLr[,
sed (需要至少一行输入) ^WB[uFt-
sed -ne '1s/.*/Hello, world!/p' 9f0`HvHC
y[$UeE"0
3R<r[3WP
Smalltalk w3,KqF
Transcript show: 'Hello, world!' CmBPCjh
C`[2B0
C{/U;Ie-b
SNOBOL n~6$CQ5dF(
OUTPUT = "Hello, world!" 4j3_OUwWZx
END ivgX o'=
I[&x-}w
8(4!x$,Z5
SQL .5;
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create table MESSAGE (TEXT char(15)); Pr}
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insert into MESSAGE (TEXT) values ('Hello, world!'); =? !FO'zt"
select TEXT from MESSAGE; (E0WZ$f}
drop table MESSAGE; )q_,V"
$V3If
L?nhm=D
Tcl MXaik+2
#!/usr/local/bin/tcl >bV3~m$a+
puts "Hello, world!" ?<t?G
dYISjk@
8i]
S[$Fc
TScript (Z>?\iNJ
? "Hello, world!" mh"PA p
LAc60^t1
*Hn=)q
Turing zqj|$YNC
put "Hello, world!" Fxa{
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+!u9_?Tp
JvXuN~fI{[
UNIX-style shell poafGoH-Y
程序中的/bin/sh可改为您使用的shell E'{:HX
uB"B{:Kz
#!/bin/sh .>;??BG}
echo 'Hello, world!' <!m.+
<7`k[~)VB
O<p=&=TD7
GUI bJMsB|r
EgG3XhfS
Delphi %TI3Eb
program HelloWorld; &V+_b$
uses mxCneX
Dialogs; EFDmNud`Q
begin 2gK]w$H7!
ShowMessage('Hello, World!'); SN"Y@y)=
end. '~
B2[
8zMGpY#
VTL_I^p
Nuva O\Y*s
<. =A,T:!}'
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) yH:p*|% :
.> wclj9&k
1^]IuPxq
4j0;okQWV'
Visual Basic ]lKUpsQI
MsgBox "Hello, world!" lGahwn:
'或者 =),ZZD#J
Print "Hello, world!" nnhI]#,a{
Y*9vR~#H
S@pdCH, n
Visual FoxPro c[,Rhf
? "Hello, world!" U= GJuixy
=W')jKe0
t|V5[n!
X11 j8Q_s/n
用一个程序 ^vh!1"T
XC<'m{^(m
xmessage 'Hello, world!' \'g7oV;>cI
wG:RvgX}
用C++和gtkmm 2 <z60EvHg
7>zUT0SS
#include <iostream> [H!do$[>
#include <gtkmm/main.h> @P0rNO%y
#include <gtkmm/button.h> V G7#C@>Z
#include <gtkmm/window.h> vt"bB
using namespace std; bO$KV"*!
xH28\]F5n
class HelloWorld : public Gtk::Window I3.JAoB>!
{ _0
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public: ]Rf$&7`g{
HelloWorld(); F&p42!"
virtual ~HelloWorld(); U43U2/^
protected: t^Bs3;E^
Gtk::Button m_button; roriNr/e
virtual void on_button_clicked(); TPx0LDk%(
}; dL'oIBp
)]w&DNc
HelloWorld::HelloWorld() : m_button("Hello, world!") a%m>v,
{ ;L76V$&
set_border_width(10); A+Un(tU2(
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); BJHWx,v
add(m_button); ZX-A}
m_button.show(); {7X9P<<L7
} jEx8G3EL
' p!&&.%
HelloWorld::~HelloWorld() {} 4+>~Ui_#
ORX<ZOt1
void HelloWorld::on_button_clicked() o4a@{nt^,
{ !+Cc^{
cout << "Hello, world!" << endl; TG?>;It&
} 3LQu+EsS
?^:5`
int main (int argc, char *argv[]) }|/<!l+;$
{ e
GAto
Gtk::Main kit(argc, argv); 3`3my=
HelloWorld helloworld; qMVuBv
Gtk::Main::run(helloworld); LhF;A~L
} '%|Um3);0p
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3^H-,b0^
Java
qOD^P
import java.awt.*; It'kO jx]
import java.awt.event.*; YJz06E1 -9
!6taOT>v
public class HelloFrame extends Frame s 64@<oU<"
{ &