“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。 ;M\Cw.%![
:&2%x
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》。 1Oak8 \G
-SzCeq(p%5
以下是用不同语言写成的Hello World程序的几个例子: L6ypn)l
Ada cFuQ>xR1
with Ada.Text_Io; use Ada.Text_Io; ?MFXZ/3(ba
procedure Hello is Q7/Jyx|
begin ;<xPzf
Put_Line ("Hello, world!"); 7_rDNK@e
end Hello; u
bZ`Y$
e:_[0#
|W&K@g$
汇编语言 #c'}_s2F[
aQzmobleep
x86 CPU,DOS,TASM 3x
z
z*
<
MODEL SMALL q^<;B Y
IDEAL tq=M 9c
STACK 100H WE-+WC!!:
w]N;HlU
DATASEG O<dCvH
HW DB 'Hello, world!$' 1W}k>t8?h'
VMNdC}
CODESEG J&+"
MOV AX, @data 2^U?Ztth6
MOV DS, AX L},o;p:
MOV DX, OFFSET HW l-Dg m
MOV AH, 09H 6{fo.M?
INT 21H ,">CPl]
MOV AX, 4C00H }wEt=zOJ
INT 21H ?iHcY,
END yBv4 xKMH
NL!xkcXO
.v9i|E=<~
x86 CPU,GNU/Linux,NASM BrZ17
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ?,[$8V
;Enter this into "hello.asm" then type: .cmhi3o4
;"nasm -f elf hello.asm" 2(Yt`3Go(
;"ld hello.o -o hello" '[HU!8F
;"./hello" H$
:BJ$x@
!thFayq
section .data ;data section declaration Z0wH%o\
msg db 'Hello World!',0AH U2\k7I
len equ $-msg ;string length x_/H
2_Cp}Pj
section .text ;code section declaration zW. Ltz
global _start ;entry point (start of execution) aghlYcPg
_start: mov edx,len ;string length DLe>EU;vS
mov ecx,msg ;string start ] xIgP%
mov ebx,1 ;file handle: stdout c]ga)A(
mov eax,4 ;sys_write pNu?DF{
3
int 80h ;kernel system call m+ #G*
aFh'KPhe
mov ebx,0 ;return value %0f*OC
mov eax,1 ;sys_exit L%pAEoSG
int 80h ;kernel system call 7&L8zl|K
xZloEfv.B
`;m0GU68
x86 CPU,Windows,MASM32 Z1(!syg
.386 +]hc!s8
.model flat,stdcall \D#+0
option casemap:none xq%BR[1
;Include 文件定义 N;=J)b|9
include windows.inc t!>0^['g4
include user32.inc qi8AK(v
includelib user32.lib jX t5.9 t
include kernel32.inc \oP
includelib kernel32.lib ?b(DDQMf
;数据段 " ;\EU4R
.data +hH7|:JQ
szCaption db 'A MessageBox!',0 ]a:T]x6'
szText db 'Hello,world!',0 a^VI)
;代码段 v)*eLX$
.code Y$qjQ 1jF+
start: i/C0
(!
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK Ie8K[ >
invoke ExitProcess,NULL E!,jTaZz
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> G2:.8ok
end start vQDR;T"]
@Qqf4h
R F;u1vEQ8
AWK E
<r;J
BEGIN { print "Hello, world!" } :`4LV
kkj_k:Eah
zThut!O
BASIC (YYwn@NGj
传统版BASIC(例如GWBASIC): bW3Ah?0N
Xxm7s S
10 PRINT "Hello, world!" /5\{(=0
20 END =v{ R(IX%
4k6:
或在提示符输入: qJXfc||Zg
P1`YbLER5
?"Hello, world!":END QX.U:p5C
eN m
Wul
现代版BASIC(例如Quick BASIC): KXu1%`x=%Z
XhOg>
Print "Hello, world!" iX>)6)uJ
|%(qaPA1
以下的语句在Quick BASIC中同样有效: !~-@sq
Jp~[Dm
? "Hello,world!" DuC_uNJ
dmMrZ1u2
f>? b2a2HX
BCPL $@WA}\D
GET "LIBHDR" n+Ng7
OoZv\"}!_
LET START () BE u$ ^r(.EV
$( J^pq<
WRITES ("Hello, world!*N") F}5skD=
$) %V-Hy ;V
3tmS/tQp
GbC JGqOR
Befunge +#@2,
"!dlrow olleH">v ORfMp'uP=
, ZYz8ul$E
^_@ ;#7:}>}rO
id/y_ekfP
b|Eo\l2
Brainfuck \T;(k?28HN
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< :&s8G*
+++++++++++++++.>.+++.------.--------.>+.>. ]TsmW ob
2]tW&y_i
W{kTM4
C [Lf8*U"
#include <stdio.h> 1EliR uJ
y*I,i*iv
int main(void) : p7PiqQ
{ z,SNJIsx
printf("Hello, world!\n"); F Zk[w>{
return 0; jZqCM{
} \YH*x`
w|ct="MG
XBTjb
C++
_+&/P&
#include <iostream> \Iz-<:gA'
F=;nWQ&
int main() _P=L| U#C
{ QU@CPME
std::cout << "Hello, world!" << std::endl; NcIr;
}
return 0; k,r}X:<6jz
} Qgl5Jr.
HB}iT1.`
)79F"ltzh
C++/CLI "u"?~
int main() tLGNYW!K
{ YA8ZB&]En/
System::Console::WriteLine("Hello, world!"); Qmj%otSg
} '5P:;zw
+ Ui%}^ZZ
c+UZ UgP
C# (C Sharp) ~fz9PoC
class HelloWorldApp ^=w){]G
{ 5^36nEoA(
public static void Main() F\+!\b*lP
{ ov'C0e+o
System.Console.WriteLine("Hello, world!"); a &hj|
} stOD5yi
} :j;_Xw
)oMMDHw\
M` |E)Y
COBOL G5$YXNV
IDENTIFICATION DIVISION. 5g
phza
PROGRAM-ID. HELLO-WORLD. >NBwtF>
2| ERif;)
ENVIRONMENT DIVISION. }A7]bd
Gq.fQ_oOb
DATA DIVISION. )`<7qT_BM
L!:;H,
PROCEDURE DIVISION. -qDL':
DISPLAY "Hello, world!". W_|7hwr
STOP RUN. ^W[3RiG
Fr,b5 M<L7
>jm^MS=
Common Lisp x)e(g}n
(format t "Hello world!~%") qD5)AdCGO
F6
f
#!]~E@;E
DOS批处理 PkDh[i9Z|
@echo off |`@7G`x
echo "Hello, world!"
lD?]D&
UphZRgT!N
v`~egE17
Eiffel HJOoCf
class HELLO_WORLD Opf^#6'mq
X"v)9p
creation dqw0ns.2
make mUwGr_)wj
feature {o8K&XU#&t
make is !]!J"!xg*
local 1h&_Q}DM
io:BASIC_IO bN.U2 %~!
do &=v5M9GR]
!!io ;C+
_K S
io.put_string("%N Hello, world!") e1 P(-V
end -- make =tqChw
end -- class HELLO_WORLD (l:LG"sy\
\Oa11c`6
3>G"&T{
Erlang ^ V8?6E
-module(hello). 6G?7>M
-export([hello_world/0]). !FbW3p f
Rc`zt7hbJ
hello_world() -> io:fwrite("Hello, World!\n"). z6bIv}
#|acRZ9
}
~{np G
Forth $R/@%U)-o
." Hello, world!" CR Hc-Ke1+
r$;u4FR
MK, $#
Fortran DVjsz
WRITE(*,10) _SQ0`=+
10 FORMAT('Hello, World!') }wV/)Oy[
STOP lgh+\pj
END 3b1%^@,ACy
ci{WyIh
xU$15|ny
HTML "$N 4S9U
<HTML> ug9]^p/)^
<HEAD> &,iPI2`O A
<TITLE> Hello World! </TITLE> "o$)z'q
</HEAD> k3r<']S^
<BODY> (:ij'Zbz
<p>Hello World!</p> qJEtB;J'
</BODY> ~DUOL~E
</HTML> ~X1<x4P\
^97\TmzP{
r[ RO"Ej"
HQ9+ U7d05y'
H 2B=+p83<
,:?=j80m
jI,?*n<
INTERCAL <+e&E9;>6
PLEASE DO ,1 <- #13 q|N4d9/b
DO ,1 SUB #1 <- #238 7B#HF?,?
DO ,1 SUB #2 <- #112
@d6N[?3;
DO ,1 SUB #3 <- #112 &8QkGUbS<
DO ,1 SUB #4 <- #0 j'nrdr6n
DO ,1 SUB #5 <- #64 H4g1@[{|0O
DO ,1 SUB #6 <- #238 1_G5uHO
DO ,1 SUB #7 <- #26 zZ{(7Kfz
DO ,1 SUB #8 <- #248 _:?b-44
DO ,1 SUB #9 <- #168 NIxtT>[+3
DO ,1 SUB #10 <- #24 teg[l-R"7z
DO ,1 SUB #11 <- #16 qc@v"pIz'S
DO ,1 SUB #12 <- #158 bn0Rv
DO ,1 SUB #13 <- #52 wlfq$h p
PLEASE READ OUT ,1 (t2vt[A6ph
PLEASE GIVE UP vU,;asgy
1F94e)M)"
}n$I #G}\/
Java 84M*)cKR~
public class Hello oD~q/04!
{ $1;@@LSw
public static void main(String[] args) 9Gk#2
{ \xexl1_;
System.out.println("Hello, world!"); XFWo"%}w
} mA0|W#NB
} Gque@u
</)QCl' d
wVtBH_>
JSP wxo{gBq
<% ueV,p?Wo
out.print("Hello, world!"); %pr}Xs(-f
%> g2W ZW#a)
lsRW.h,
S]}W+BF3
MIXAL HWi: CDgm
TERM EQU 19 the MIX console device number H0Ck%5
ORIG 1000 start address /7p1y v
START OUT MSG(TERM) output data at address MSG w.R2' WR
HLT halt execution h&m4"HBL_
MSG ALF "MIXAL" C?lZu\L
ALF " HELL" 2qfKDZ9f^
ALF "O WOR" DjQgF=;
ALF "LD " RS
/*Dp^
END START end of the program =!P$[pN2
@1iH4RE*
\6K1Z!*;
Nuva L|K^w *\C
<..直接输出..> 9:]|TIPi
Hello, world! FpFkZFtG'm
.V?>Jhok
<..或者..> 8Xk,Nbcqt
qBXIR}
<. QeipfK+me
// 不带换行 8VR!
Y0`e
? "Hello, world!" k{w
QKtVwsz
+
// 或者 )SsO,E+t=U
a
qIpO
// 带换行 LQ.0"6oj
?? 'Hello, world!' Xrd-/('2
.> T96M=?wh!
^DOQ+
B5H=#
OCaml DzE_p-
zs
let main () = wBIhpiJX0
print_endline "Hello world!";; -%6Y&_5VK
E _j=v
\
anxwK47
Pascal Lt\=E8&rh
program Hello; Qvhz$W[P>
begin 7F
1nBd
writeln('Hello, world!'); TM^.y
Y
end. +IPMI#n
Jqgo\r%`
5R/k8UZ
Perl N"&qy3F
#!/usr/local/bin/perl jv'q:uA ^
print "Hello, world!\n"; 37nGFH`K2m
\K(QE ~y'W
OysO55 i
PHP |g8Q.*"l[
<?php f`"@7-N
print("Hello, world!"); p-,(P+Np
?> `]4bH,%~
7Hzv-s
AN
'L-
E
Pike L(w?.)E
#!/usr/local/bin/pike [pYjH+<
int main() px=r~8M9}
{ 6T ,'Oz
write("Hello, world!\n"); d2[R{eNX=
return 0; ZRLS3*`
} '?dT<w=Y&
w@&(=C
AG(Gtvw
PL/I wl:[Ad
Test: procedure options(main); 1h#UM6
declare My_String char(20) varying initialize('Hello, world!'); lko
k2
put skip list(My_String); $7'KcG
end Test; mVdg0
p| o?nI
gWpG-RL0
Prolog
T6N~L~J
goal A,#a?O6m
write("hello,world!"). +o^sm '$
UJhUb)}^
'NDDj0Y
Python M5<cHE
#!/usr/local/bin/python N(=\S:
print "Hello, world!" 19 <Lgr
+N:=|u.g
9 7Mi{Zz
REXX 1JWo~E'
say "Hello, world!" 9 `z^'k&
&24$*Oe
j]bNOC2.L
Ruby ;Br
#e1~
#!/usr/bin/ruby W@FRKDixG
print "Hello, world!\n" ~Op~~
m
`g!NFp9q
Tmr%r'i3
Scheme Cso-WG,
(display "Hello, world!") Yi+$g
(newline) V4qv7
&n-)Alx
e<1)KqG
sed (需要至少一行输入)
uhO-0H
sed -ne '1s/.*/Hello, world!/p' 35PIfqm
#AUV&pI[
p~NFiZ,
Smalltalk U t'r^
Transcript show: 'Hello, world!' &JHqUVs^
Z2^B.r#
`=JGlN7
SNOBOL Ch,%xs.)G
OUTPUT = "Hello, world!" m(eR Wx&pZ
END ?fmW'vs
L+J)
B96"|v$
SQL ] R-<v&O
create table MESSAGE (TEXT char(15)); UTph(U#
insert into MESSAGE (TEXT) values ('Hello, world!'); n06Jg+
select TEXT from MESSAGE; B[B(=4EzMP
drop table MESSAGE; mdy+ >e<
0$\
j
I4\
c+f9
Tcl Qa-~x8 ]
#!/usr/local/bin/tcl :]+p#l
puts "Hello, world!" ]?A-D,!(
+L\bg|;
! j-JMa?
TScript Mv#\+|p 1x
? "Hello, world!" tX
3y{W10"
A&/VO$Y9wp
IBSoAL
Turing ^{R.X:a
put "Hello, world!" w6FVSU]sY
c!HmZ]/
_l||69|.
UNIX-style shell !y syb
程序中的/bin/sh可改为您使用的shell {H[3[
"?SR+;Y:q
#!/bin/sh UVj1nom
echo 'Hello, world!' -P[bA0N,
3JcI}w
$1bx\
GUI ->Bx>Y
!p$k<?WX c
Delphi F|&=\Q
program HelloWorld; (X( c.Jj
uses }Asp=<kCc
Dialogs; 5B,HJax
begin [>wvVv
ShowMessage('Hello, World!'); :Yy8Ie#
end. Aa`'g0wmc
JTI 'W
Dh~Z8!*
Nuva tj;<EaM
<. ' &j]~m
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) '1te(+;e@
.> n,.t~
k%fy
vB;$AFh{
Visual Basic #7yy7Y5
MsgBox "Hello, world!" v'X=|$75
'或者 T^XU5qgN
Print "Hello, world!" \B1<fF2
%eDJ]\*^X
PP_fTacX
Visual FoxPro ?2$0aq
? "Hello, world!"
Im8c
PML+$
l<YCX[%E
X11 ZFO*D79:K
用一个程序 ;)gNe:Q
_rjLCvv-
xmessage 'Hello, world!' r]'Q5l4j6"
/aHx'TG
用C++和gtkmm 2 hDc)\vzr
Yvbk[Rb
#include <iostream> [5O`
#include <gtkmm/main.h> PZsq9;P$
#include <gtkmm/button.h> I7/X6^/}
#include <gtkmm/window.h> /'g"Ys?3
using namespace std; UZ}>@0
UOtrq=y
class HelloWorld : public Gtk::Window {%Ujp9i
{ I'%(f@u~
public: Q1(6U6L
HelloWorld(); Vuu_Sd
virtual ~HelloWorld(); 5xF R7%_&
protected: 'YUx&FcM
Gtk::Button m_button; `.8#q^
virtual void on_button_clicked(); *2tG07kI
}; m"RE[dQ
>iIUS
HelloWorld::HelloWorld() : m_button("Hello, world!") RS`~i8e'
{ BL Q&VI4
set_border_width(10); mbm|~UwD
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); ;%tu;
add(m_button); :\+\/HTbh
m_button.show(); oy!Dm4F
} ^S'tMT_
6
SosVE>Z
HelloWorld::~HelloWorld() {} 70&]nb6f
fW'U7&O
void HelloWorld::on_button_clicked() 999E0A$dkv
{ F6h|AF|"
cout << "Hello, world!" << endl; )-4xI4
} ;4 rTm@6
!j|93*
int main (int argc, char *argv[]) |+0XO?,sZ
{ Q]]5\C.
Gtk::Main kit(argc, argv); I N'a5&..
HelloWorld helloworld; ;
3WA-nn
Gtk::Main::run(helloworld); &^W91C?<6
} \dIQhF%%2
r$Z_Kwe.|&
&QL!Y{=Y6
Java cjel6 nj
import java.awt.*; / NlT[@T
import java.awt.event.*; aj:B+}1
"RF<i3{S
public class HelloFrame extends Frame j7M[]/|
{ &]? X"K
HelloFrame(String title) O7AW9*<
{ P95A_(T=[
super(title); :W\xZ
} +#c3Y;JP
public void paint(Graphics g) *Tt*\ O
{ u< ,c
super.paint(g); Q/,jv5
java.awt.Insets ins = this.getInsets(); 79 svlq=
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); Wqu][Wa[Z
} uKcwVEu
public static void main(String args []) uM^eoh_
{ m% {4
HelloFrame fr = new HelloFrame("Hello"); =tv,B3Mo
CK+GD "Z$
fr.addWindowListener( !awfxH0
new WindowAdapter() 6SIk,Isy8
{ 8C{mV^cn~
public void windowClosing(WindowEvent e) $`emP
Hel
{ <+QX Gz1
System.exit( 0 ); T&] J3TFJ
} x{X(Y]*1S
} xD(JkOne
); .kO;9z\B
fr.setResizable(true); ~Zc=FP:1
fr.setSize(500, 100); 9p#Laei].
fr.setVisible(true); =nYd|Ok
} :|:Disg
} s=+,F<;x.U
K;u<-?En
R{5xb
Java Applet v){&g5djl
Java Applet用于HTML文件。 Qw ukhD7
&O