“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。 SGMLs'D
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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》。 Fl GKy9k
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以下是用不同语言写成的Hello World程序的几个例子: kStWsc$;+T
Ada ANh5-8y
with Ada.Text_Io; use Ada.Text_Io; >\b=bT@iM
procedure Hello is 2s,wC!',
begin (
q^umw
Put_Line ("Hello, world!"); W`],
end Hello; XA{tVh
hQrO8T?2
t#mW`rGE_
汇编语言 hqVx%4s*J
Zs!)w9y&V
x86 CPU,DOS,TASM WF<0QH
MODEL SMALL ^ MkT">
IDEAL emb~l{K $
STACK 100H 2E/#fX9!4
fRJSo%
DATASEG s% `o
HW DB 'Hello, world!$' KLlo^1.<
_$"qC[.
CODESEG 8%Zl;;W
MOV AX, @data NS"hdyA
MOV DS, AX 0V*L",9M
MOV DX, OFFSET HW S~`&K
MOV AH, 09H u79.`,Ad&
INT 21H d|5u<f5
MOV AX, 4C00H /EhojODMF
INT 21H <'QHe4
END Dq+rEt
67 >*AL
`':$PUz,g
x86 CPU,GNU/Linux,NASM C^RO@kM
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). $(_Xt- 6
;Enter this into "hello.asm" then type: BuI&kU,WY
;"nasm -f elf hello.asm" rWF~aec
;"ld hello.o -o hello" RLr;]j8cm
;"./hello" :h1itn
"2(4?P
section .data ;data section declaration Y+ P\5G
msg db 'Hello World!',0AH r: n^U#
len equ $-msg ;string length >:5/V0;,
!<}<HR^)
section .text ;code section declaration S|Wv1H>
global _start ;entry point (start of execution) kc `Q-
N}
_start: mov edx,len ;string length %VsuGA
mov ecx,msg ;string start <pRb#G"
mov ebx,1 ;file handle: stdout >1xlP/4jx
mov eax,4 ;sys_write he&*N*of:
int 80h ;kernel system call M~;Ww-./
LOi5 ^Um|
mov ebx,0 ;return value pm O }m>
mov eax,1 ;sys_exit d$g-u8
int 80h ;kernel system call \(jSkrrD
~h?zK1
oT$w14b
x86 CPU,Windows,MASM32 6Km@A M]
.386 G_=`&i"4
.model flat,stdcall E
N%cjvE
option casemap:none 1p>5ZkHb
;Include 文件定义 {[o=df/
include windows.inc xlkEW&N&
include user32.inc R1/)Yy
includelib user32.lib <9YRSE[Ed
include kernel32.inc 3t[2Bd
includelib kernel32.lib K=VYRY
;数据段 VWd=7
.data Ab
-uK|<
szCaption db 'A MessageBox!',0 Ix !O&_6s
szText db 'Hello,world!',0 i;`rzsRb
;代码段 RvvK`}/6
.code 95>(NwST4
start: ?%(8RQ
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK q(i|
invoke ExitProcess,NULL 4dv+RRpGOv
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> HE.
`
end start YY{S0jnhF
FkR9-X<
_!H{\kU
AWK #A@*k}/+
BEGIN { print "Hello, world!" } "n:z("Q*
>}GtmnF
vL{sk|2&
BASIC wgpu]ooUF&
传统版BASIC(例如GWBASIC): QM`A74j0]\
T?:Vw laE
10 PRINT "Hello, world!" "zL<:TQ"
20 END 2#ND(
=l&7~
或在提示符输入: y} AkF2:
HlgF%\@a+U
?"Hello, world!":END q5YgKz?IC
f{AbCi
现代版BASIC(例如Quick BASIC): DY'D]*'7$
,ClGa2O
Print "Hello, world!" 0sto9n3
_a"5[sG
以下的语句在Quick BASIC中同样有效: ])egke\!
o X )r4H?
? "Hello,world!" ?@6N EfQf
QNJ )HNLp
_CDUUr
BCPL 4!,x3H'
GET "LIBHDR" O8"kIDr-
E$=!l{Ms
LET START () BE lNowH0K!D
$( uj,YCJ8UZs
WRITES ("Hello, world!*N") \I1+J9Gl
$) ZGf R:a)wc
3|8\,fO?
qd(C%Wk
Befunge oOUL<ihe?
"!dlrow olleH">v ,1EyT>
, u;H SX
^_@ CEq0ZL-W
CWdA8)n.
%WiDz0o
Brainfuck iyAeR!`
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 9'faH
+++++++++++++++.>.+++.------.--------.>+.>. @v\Osp t=
e82SG8#]
thIuK V{CO
C YvL5>;
#include <stdio.h> >VM@9Cph
"VR>nyG%
int main(void) 4UT%z}[!
{ sxinA8
printf("Hello, world!\n"); pZUckQ
return 0; n=WwB(}q
} vx62u29m
|RS9N_eRt
+KgLe> -}
C++ FY+0r67]
#include <iostream> w4P?2-kB
!f[LFQD
int main() FJomUVR .
{ eG*<=.E
std::cout << "Hello, world!" << std::endl; Y|FF
;[
return 0; q}p&<k
} q@8Jc[\d
N]udZhkn
6^y*A!xY
C++/CLI xCGa3 X
int main() jU.z{(s
{ W5PNp%+KE
System::Console::WriteLine("Hello, world!"); AP5[}$TT
} u:JD
T1 >xw4uo
?XN=Er^
C# (C Sharp) 8Q
ba4kgL
class HelloWorldApp `ECT8
{ Ndq/n21j
public static void Main() I
,8
{ hAX@|G.
System.Console.WriteLine("Hello, world!"); q{~59{Fha
} kKL'rT6z
} yIy'"BCxM
~(bY-6z
$X<O\Kna
COBOL CAg~K[
IDENTIFICATION DIVISION. {2 l35K=
PROGRAM-ID. HELLO-WORLD. 9oBK(Sf@^
`u6CuH5
ENVIRONMENT DIVISION. HO[W2b
'[(]62j
DATA DIVISION. m1H|C 3u8
}zC9;R(E
PROCEDURE DIVISION. d1]CN6 7{G
DISPLAY "Hello, world!". n'*4zxAA
STOP RUN. 2q]y(kW+
)tYu3*'
4FrP%|%E~
Common Lisp 8 *o*?1.
(format t "Hello world!~%") 9/2VU<
K
AB(WK9o
0x BO5[w,Y
DOS批处理 *g7BR`Bt]z
@echo off Y\s ge
echo "Hello, world!" 4P(muOS
`R[cM; c2
'kU5
Eiffel >}<1
class HELLO_WORLD Xb#!1hA
8R|!$P
creation h; " 9.
make W
D 8
feature {<ms;Oi'
make is p1tqwV
local DR]=\HQ
io:BASIC_IO >D]g:t@v
do D!7-(3R
!!io lRA=IRQ]
io.put_string("%N Hello, world!") PgOOFRwP
end -- make >u?m
Bx
end -- class HELLO_WORLD F(h
jP
}fC=
RTC;Wj
Erlang Q$,AQyBlqc
-module(hello). RZMR2fP%
-export([hello_world/0]). X5U#^^O$E%
{:=sCY!
hello_world() -> io:fwrite("Hello, World!\n"). 7pPaHX8
h;TN$ /
9-:\ NH^;
Forth %lsRj)n
." Hello, world!" CR Y#e,NN
LH}]& >F
P^'TI[\L9
Fortran 6_mkt|E=
WRITE(*,10) i?{)o]i
10 FORMAT('Hello, World!') _(7f0p
STOP p"@[2hK
END f4'WT
P;8nC:z L
e|-&h `[
HTML I<+EXH%1,
<HTML> I9
(6
<HEAD> WwDd62g
<TITLE> Hello World! </TITLE> LNNwy:_ !
</HEAD> #jj+/>ZOi
<BODY> <n1panS
<p>Hello World!</p> `\-<tk9
</BODY> W6c]a/
</HTML> njxfBA:
]`eP"U{
|hl:!j.t
HQ9+ gOy;6\/
H l+nT$IPF
}G/!9Zq
X'uQr+p^
INTERCAL <aQ<Wy=\
PLEASE DO ,1 <- #13 T
W#s)iDi
DO ,1 SUB #1 <- #238 { )g
$
DO ,1 SUB #2 <- #112 S(^HIJK
DO ,1 SUB #3 <- #112 s$gR;su)g
DO ,1 SUB #4 <- #0 aS! If >
DO ,1 SUB #5 <- #64 !i>d04u`%
DO ,1 SUB #6 <- #238 LWdA3%
DO ,1 SUB #7 <- #26 -DuI
6K
DO ,1 SUB #8 <- #248 n58yR -"
DO ,1 SUB #9 <- #168 3N[Rrxe2
DO ,1 SUB #10 <- #24 Y_zMj`HE
DO ,1 SUB #11 <- #16 xovsh\s
DO ,1 SUB #12 <- #158 c/DK31K
DO ,1 SUB #13 <- #52 Fy 1- >~
PLEASE READ OUT ,1 &+5ij;AD
PLEASE GIVE UP 38mC+%iC
8IkmFXj
jd`h)4
Java "wy2u~
public class Hello H)k V8wU
{ QHXA?nBX
public static void main(String[] args) [H[L};%=j
{ R53^3"q~
System.out.println("Hello, world!"); Xp+lpVcJ
} + 70x0z2
} h+R26lI1x
b4qMTRnv
jiejs*
JSP S6g_$Q7
<% h! Bg}B~
out.print("Hello, world!"); t"s$YB>}
%> Jmuyd\?,b
h% eGtd$n
O9P+S|hcY
MIXAL {'p <
o$(S
TERM EQU 19 the MIX console device number HLkI?mW<
ORIG 1000 start address jM}(?^@
START OUT MSG(TERM) output data at address MSG &\=Tm~
HLT halt execution U8.V Rn
MSG ALF "MIXAL" +
\]-"
ALF " HELL" sW-0G$,|
ALF "O WOR" <Umr2Vw-
ALF "LD " k Nvb>v
END START end of the program +MZI \>
WG&! VK
9W0*|!tQ,+
Nuva ppo0DC\>
<..直接输出..> )@ofczl6
Hello, world! IH&0>a
-=cm7/X
<..或者..> <+-=j
"} "/d(
<. qSGM6kb
// 不带换行 mW$Oi++'d
? "Hello, world!" bg!(B<!X
x6)qs-
// 或者 hF{gN3v5
d>?C?F
// 带换行 O/U? Wq
?? 'Hello, world!'
:>iN#)S
.> Z3yy(D>*
#*q]^Is"
xG;;ykh.]
OCaml q_6fr$-Qh
let main () = $%^](-
print_endline "Hello world!";; :c|Om{;
GM8Q#vc
h
w^
V
Pascal {cUGksz]}
program Hello; aAbA)'G
begin ,]@K,|pC)
writeln('Hello, world!'); ;Xf1BG r
end. $KQ q~|
YKz#,
v6|j.;
Perl i\_LLXc
#!/usr/local/bin/perl Dw/vXyZ
print "Hello, world!\n"; kia[d984w
gD51N()s,
R[14scV
PHP H~TuQ
<?php <S=(`D
print("Hello, world!"); MhR`
?> s1E 0atT
EjFn\|VK
}`2a>N:
&
Pike Z;V(YK(WO.
#!/usr/local/bin/pike eKy!Pai
int main() -b
iE
{ !uoT8BBAk
write("Hello, world!\n"); oN[}i6^,e
return 0; ]tXIe?>9
} h
(q,T$7W
+SF+$^T
7~FHn'xt
PL/I $#-rOi /
Test: procedure options(main); {:3\Ms#
declare My_String char(20) varying initialize('Hello, world!'); SswcO9JCX3
put skip list(My_String); <5D4h!
end Test; Xy%||\P{)
dOKp:|9G
'YB[4Q /0
Prolog PJ;WNo8
goal 2GORGS%
write("hello,world!"). "{r8'qn
4b[bj").A
O Bcz'f~
Python ]E-3/r$_cO
#!/usr/local/bin/python `u}_O(A1pA
print "Hello, world!" mZ2CGOR
0VcHz$
6
6`7tTn?n
REXX S't9F
say "Hello, world!" }ymW};W
^utOVi
p@kRo#~l
Ruby >t.Lc.
#!/usr/bin/ruby {?`7D:]`^
print "Hello, world!\n" 4~3
n
=T*
f*<Vq:N=\
F{;#\Ob
Scheme faDS!E' +
(display "Hello, world!") SGSyO0O
(newline) 0uIY6e0E
26g]_Igq
w$/lq~zU
sed (需要至少一行输入) h$kz3r;b,"
sed -ne '1s/.*/Hello, world!/p' ; ?f+
F$DA/ {.D
4VZI]3K,
Smalltalk X5YOxMq
Transcript show: 'Hello, world!' eM_;rM Cr}
iAZ8Y/
kBhjqI*
SNOBOL u {_, S3Aa
OUTPUT = "Hello, world!" gy%.+!4>v`
END }< H> 9iJ:
jQ;/=9
bw zx_F/
SQL &muBSQ-
create table MESSAGE (TEXT char(15)); >U,&V%y
insert into MESSAGE (TEXT) values ('Hello, world!'); ttUK~%wSx
select TEXT from MESSAGE; wv\K
drop table MESSAGE; 3!b
$R?kZ
h\UKm|BZ
lwq:0Rj@Q
Tcl L4Zt4Yuw
#!/usr/local/bin/tcl ~w3u(X$m"
puts "Hello, world!" !Z tqh Xr
_]OY[&R
QZ l#^-on
TScript o *J*}y
? "Hello, world!" #Z1-+X8P
mA{?E9W
4WvW11q8U
Turing @>Yd6C
put "Hello, world!" R1X'}#mU
.*x:
>9!J?HA
UNIX-style shell mFF4qbe
程序中的/bin/sh可改为您使用的shell ^T!Zz"/:
sko7,&
#!/bin/sh ,)Q-o2(C
echo 'Hello, world!' P !i_?M
v1 8<~
%jzTQ+.%]^
GUI VIz(@
A:< %>
Delphi
kScZP8yw
program HelloWorld; -n.m "O3
uses yuZLsH
Dialogs; 8In\Jo$|q>
begin |-x-CSN
ShowMessage('Hello, World!'); n7fhc*}:`
end. !CUl1L1DSi
EL`|>/[J
E%bhd4$G
Nuva 6?F88;L
<. &N^~=y^`C'
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) _ l|%~
.> ~D9Cu>d9
7A\`
o6MFMA+vi
Visual Basic 3W7^,ir
MsgBox "Hello, world!" :awkhx
'或者 OP1`!P y
Print "Hello, world!" KAClV%jP
qR'FbI
/eQAGFG
Visual FoxPro
^wolY0p
? "Hello, world!" S/XU4i:aV
!G-+O#W`
@}Hu)HO
X11 G1 "QX
用一个程序 k`m7j[A]l
btuG%D{a^
xmessage 'Hello, world!' Jj\4P1|' 7
cF8
2wg
用C++和gtkmm 2 "@&TC"YG0
W^[FWFUTY
#include <iostream> ie6c/5
#include <gtkmm/main.h> Vx $;wU Y
#include <gtkmm/button.h> %Xd*2q4*
#include <gtkmm/window.h> 'Tm1Mh0Fso
using namespace std; .J75bX5
b]]8Vs)'
class HelloWorld : public Gtk::Window J#..xJ?XRD
{ ;\*3A22 #
public: J,?#O#j
HelloWorld(); \EfX3ghPI
virtual ~HelloWorld(); !"F;wg$
protected: ,/w*sE
Gtk::Button m_button; ~(V\.hq
virtual void on_button_clicked(); G]>yk_#/\U
}; zL
yI|%KH
)$n%4 :
HelloWorld::HelloWorld() : m_button("Hello, world!") /A7( `l;6
{ |/gt;H~:
set_border_width(10); eB5>uKa
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); mU #F>
add(m_button); +X/a+y-
m_button.show(); "io O_
} ]W5*R07
zTg\\z;
HelloWorld::~HelloWorld() {} {]Zan'{PCO
5.6tVr
void HelloWorld::on_button_clicked() (!nkv^]
{ yNns6
cout << "Hello, world!" << endl; (t-hi8"
} f)*"X[)o
1tNL)x"w
int main (int argc, char *argv[]) %Ln`c.C
{ 6HY): M&?
Gtk::Main kit(argc, argv); efQ8jO
HelloWorld helloworld; @)U.Dbm
Gtk::Main::run(helloworld); 5%Qxx\q
} *2zp>(%
BmX'%5ho
MLWHO$C~T
Java N1~bp?$1
import java.awt.*; y&$n[j
import java.awt.event.*; }emUpju<C
7_\sx7h{3
public class HelloFrame extends Frame Yj&