“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。 fR,7l9<%Zp
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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》。 cQ`+ A|q
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以下是用不同语言写成的Hello World程序的几个例子: 8@BN6
Ada 6a*OQ{8
with Ada.Text_Io; use Ada.Text_Io; G/?j$T
procedure Hello is ka[%p, H
begin @^K_>s9B
Put_Line ("Hello, world!"); [p 8fg!|
end Hello; V1\x.0Fs
W*Ce1
ZsL-vlv
汇编语言 Q=.j>aM+_
-LMO
f[v?
x86 CPU,DOS,TASM .6y(ox|LL
MODEL SMALL x#TWZ;
IDEAL m|k:wuzqK
STACK 100H : t6.J
o>ZlA3tv
DATASEG =f-.aq(G/
HW DB 'Hello, world!$' Xd@x(T~'X
?G$X
4KY6`
CODESEG tCbnB
MOV AX, @data 6l?\iE
MOV DS, AX D>I|(B!.p8
MOV DX, OFFSET HW >Wr
MOV AH, 09H h&6t.2<e
INT 21H ${w\^6&
MOV AX, 4C00H *Q:EICDE7
INT 21H 2a[_^v $v
END P1}Fn:Xe%7
Vv5#{+eT;
pk2}]jx"
x86 CPU,GNU/Linux,NASM S1a}9Z|
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). xN]88L}Tn
;Enter this into "hello.asm" then type: 1F58 2 l
;"nasm -f elf hello.asm" a>/jW-?
;"ld hello.o -o hello" 2=ZZR8v
;"./hello" T0Zv.
]WP[hF
section .data ;data section declaration DeL7sU
msg db 'Hello World!',0AH E/N*n!sV
len equ $-msg ;string length yct^AN|%
/Jw65 e
section .text ;code section declaration 4e 55
global _start ;entry point (start of execution) H:&|q+K=#
_start: mov edx,len ;string length >XiTl;UU
mov ecx,msg ;string start SSG}'W!z
mov ebx,1 ;file handle: stdout OBJk\j+Wi
mov eax,4 ;sys_write a]u1_ $)
int 80h ;kernel system call vW:XM0
6=xbi{m$
mov ebx,0 ;return value \IG"Te
mov eax,1 ;sys_exit 4'ymPPY
int 80h ;kernel system call Xv1mjHZCC
qOd*9AS'|M
=/]d\JSp
x86 CPU,Windows,MASM32 ,6FmU$
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.386 ,c\3b)ax
.model flat,stdcall f MDM\&f
option casemap:none |UZhMF4/-L
;Include 文件定义 C!r9+z)<
include windows.inc 6Jf\}^4@k
include user32.inc _&
qM^
includelib user32.lib {=GWQn6cc
include kernel32.inc fb||q-E
includelib kernel32.lib %T:7I[f
;数据段 }v?_.MtS
.data ]$gBX=
szCaption db 'A MessageBox!',0 4)=\5wJDg1
szText db 'Hello,world!',0 /\&Wk;u3
;代码段 G>fJ)A
.code yxU??#v|g
start: -U/m
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK ".R5K ?
invoke ExitProcess,NULL #aV2+ `d
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> q[w.[]
end start ntT~_Ba8;u
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Yh}F
AWK 7JI&tlR4\c
BEGIN { print "Hello, world!" } BXf.^s{H
^7l^/GSO
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BASIC "Lp"o
传统版BASIC(例如GWBASIC): =Nj58 l
8+7=yN(
10 PRINT "Hello, world!" fm%1vM$[J
20 END Cyw
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或在提示符输入: ?NL>xMA
w/(hEF '
?"Hello, world!":END ]8i2'x
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现代版BASIC(例如Quick BASIC): ADa'(#+6
=_/,C
Print "Hello, world!" ? <.U,
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以下的语句在Quick BASIC中同样有效: 5Se
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? "Hello,world!" `RG_FS"v
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BCPL D|1pBn.b]'
GET "LIBHDR" 3)J0f+M>dv
\dL#PI3
LET START () BE .RNr^*AQ
$( )!!xvyc
WRITES ("Hello, world!*N") A
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$) aTceGyWzl
+AT!IZrB2i
%7$oig\wE
Befunge DNy1} 3wg
"!dlrow olleH">v ?kvkdHEO_
, ?OU+)kgzh
^_@ !%x=o&
Z~-A*{u?
&@dWd
Brainfuck @YEdN}es
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< J6H3X;vxQw
+++++++++++++++.>.+++.------.--------.>+.>. sH>Z{xjr
/Nh:O
7Lr}Y/1=
C $^2 j#]uX
#include <stdio.h> y!9facg
m_7)r
int main(void) xCd9b:jG
{ 0-^wY8n-=
printf("Hello, world!\n"); dD2N!umW
return 0; jy]<q^J
} #egP*{F
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a%-P^M;a2
C++ psg}sl/
#include <iostream> 9xvE?8;M#
i8`&XGEd
int main() aeESS;JxJj
{ >o\[?QvP
std::cout << "Hello, world!" << std::endl; K%: :
return 0; LW;UL}av
} E6-alBi%
ZU&I`q|Y6
?^F#}>C
C++/CLI c0Tda
int main() *n)3y.s
{ )p MZ5|+X
System::Console::WriteLine("Hello, world!"); "-N)TIzLX
} 9's/~T
w@Pc7$EP
5@+8*Fdk
C# (C Sharp) Uv6#d":f;
class HelloWorldApp W`C&$v#
{ a$c7d~p$I
public static void Main() ^ ,Bxq^'D
{ &/7AW(?
System.Console.WriteLine("Hello, world!"); K/ q:aMq
} vXnTPjbE
} Te"<.0~1
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c FjC
COBOL 8VLr*83~8
IDENTIFICATION DIVISION. 7oPBe1P,K+
PROGRAM-ID. HELLO-WORLD. K5Fzmo a
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ENVIRONMENT DIVISION. dG|srgk+
!U$ %Jz
DATA DIVISION. ~9qDmt,i
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PROCEDURE DIVISION. vm+EzmO,!
DISPLAY "Hello, world!". V%pdXM5
STOP RUN. z(^p@&r)F
U~SK 'R
A+j~oR
Common Lisp AZ5c^c)
(format t "Hello world!~%") #Dx$KPD
bwo" s[w
a%f5dj+
DOS批处理 m=2TzLVv
@echo off /^v4[]
echo "Hello, world!" }k}5\%#li5
l[^bo/
Mg95us
Eiffel Q]7Q4U
class HELLO_WORLD _OT kv6;4n
W K#lE&V3
creation nX>k}&^L
make /Mf45U<
feature LiJ;A*
make is io:?JnQSA
local Gq;0j:?CC
io:BASIC_IO 6^['g-\2
do K/Axojo
!!io G7C9FV bR
io.put_string("%N Hello, world!") +v&+8S`+
end -- make R+Ke|C
end -- class HELLO_WORLD l\5qa_{z
3}$L4U
#hzs,tvvD
Erlang XH)MBr@Fz
-module(hello). iD@2_m)
-export([hello_world/0]). SsafRK$
W.o
W=<
hello_world() -> io:fwrite("Hello, World!\n"). PG)dIec
z@VY s
A1\;6W:
Forth K^H=E
." Hello, world!" CR +98~OInySZ
[kz<2P
/NLpk7r[\q
Fortran sl%B-;@I
WRITE(*,10) GVY_u@6
10 FORMAT('Hello, World!') ~9]tt\jN*Y
STOP l4u`R(!n5
END -BACdX
pz?.(AmU\
sJ?Fque
HTML 9ZG.%+l
<HTML> xgJ2W_
<HEAD> z-(dT
<TITLE> Hello World! </TITLE> blaxUP:
</HEAD> Z/hSH
0 (~
<BODY> R^dAwt`.D
<p>Hello World!</p> m+DkO{8F
</BODY> 2c!?!:s
</HTML> W32mAz;
^l_W9s
61T"K
HQ9+ qVJV 9n
H 6}Y^X
ykl./uY'
1NN99^q
INTERCAL "v jFL9
PLEASE DO ,1 <- #13 yBauK-7*c
DO ,1 SUB #1 <- #238 Fg5c;sls
DO ,1 SUB #2 <- #112 ^b;.zhp8;N
DO ,1 SUB #3 <- #112 -YHlVz
DO ,1 SUB #4 <- #0 ,/:#=TuYm
DO ,1 SUB #5 <- #64 l$d 4g?Z
DO ,1 SUB #6 <- #238 d'^jekh
DO ,1 SUB #7 <- #26 |;{wy
DO ,1 SUB #8 <- #248 .'+Tnu(5q
DO ,1 SUB #9 <- #168 $CHri|
DO ,1 SUB #10 <- #24 v.\1-Q?
DO ,1 SUB #11 <- #16 "z< =S
DO ,1 SUB #12 <- #158 +n^$4f
DO ,1 SUB #13 <- #52 Y'bDEdeT
PLEASE READ OUT ,1 "=9L7.E)
PLEASE GIVE UP -UPdgZ_Vxz
OyZgg(iN
R S;r
Java 292e0cE
public class Hello &cayhL/%
{ `<y2l94tL
public static void main(String[] args) |53Zg"!
{ TS$ 2K
System.out.println("Hello, world!"); Q>JJI:uC4
} :%xiH%C>
} gHvxmIG
l5D8DvJCj
#Cvjv;
QwY
JSP vy1:>N?#5
<% J L`n12$m
out.print("Hello, world!"); *8,]fBUq
%> MBXumc_g
sh:sPzQ%Jv
bb+-R_3Kd
MIXAL >=6tfLQ
TERM EQU 19 the MIX console device number l>7`D3
ORIG 1000 start address e<9IwS!/
START OUT MSG(TERM) output data at address MSG <.s[x~b\`
HLT halt execution vDv:3qN7(
MSG ALF "MIXAL" a0CmCv2#
ALF " HELL" 2^Q)~sSf9
ALF "O WOR" DP &,jU6
ALF "LD " FuLP{]Y+AM
END START end of the program 9'\18_w
: )cPc7$8
wC`])z}bT
Nuva -fT]}T6=
<..直接输出..> <i%.bfQ/-
Hello, world! +Q}Y ?([
mcpM<vY/H
<..或者..> c3Y\XzV3v
68+9^
<. ^4_. 5~(
// 不带换行 j1Q G-Rs&
? "Hello, world!" AnP7KSN[\
xuv%mjQ
// 或者 LylB3BM
;l7wme8Qk
// 带换行 kDS4 t?Ig
?? 'Hello, world!' sD_Z`1
.> /F4rbL^:
f,k'gM{K
&LwR9\sh
OCaml pI,QkDJ0
let main () = TmoODG>@
print_endline "Hello world!";; +(`
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>ys>Q)
Pascal w(eAmN:zR
program Hello; B'lWs;
begin co|jUDu>W
writeln('Hello, world!'); @vCPX=c
end. 4=%Uv^M
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q+>{@tP9
Perl m5v9:5{
#!/usr/local/bin/perl XWf8ZZj
print "Hello, world!\n"; B<I%:SkF@
c'vxT<8fWW
(es+VI2!&C
PHP ic%<39
<?php +=)<
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print("Hello, world!"); }f+If{
?> l|/h4BJ'
B-@6m
Tu?+pz`h
Pike SWNi@
#!/usr/local/bin/pike Nh^T,nv*l
int main() {W)Kz_
{ 4h@jJm
write("Hello, world!\n"); (Ub=sC
return 0; N&]v\MjI62
} [}9sq+##
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+\fr3@Yc
PL/I E5~HH($b
Test: procedure options(main); t>)iC)^u
declare My_String char(20) varying initialize('Hello, world!'); C\ZL*,%}
put skip list(My_String); Vl%AN;o
end Test; 0~iC#lHO
rr>QG<i;G
iKnH6}`?U
Prolog r`qMif'
goal w4Qqo(
write("hello,world!"). [2pp)wq
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@{iws@.
Python ' Ph
#!/usr/local/bin/python 5bYU(]
print "Hello, world!" &=Gz[1
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#v0"hFOH,
*p`0dvXG2
REXX x1:+M]Da
say "Hello, world!" (v6tE[4
w},' 1
DJ_,1F
Ruby #=V%S
2~
#!/usr/bin/ruby I= G%r/3
print "Hello, world!\n" 6}='/d-[
MUhC6s\F
m4bfW
Scheme h$F;=YS
(display "Hello, world!") F l83
Z>
(newline) / *RDy!m
7g[m,48{
>6*"g{/
sed (需要至少一行输入) b'Pq[ )
sed -ne '1s/.*/Hello, world!/p' 4.I6%Bq$
q#:,6HDd
ZF"f.aV8)
Smalltalk WPygmti}Be
Transcript show: 'Hello, world!' 7!+kyA\}r^
nd3=\.(P
g0v},n
SNOBOL VUC
OUTPUT = "Hello, world!"
_CY>45
END "u~l+aW0
3$ cDC8
gcqcY
SQL a*REx_gLG
create table MESSAGE (TEXT char(15)); ]W7(}~m
insert into MESSAGE (TEXT) values ('Hello, world!'); a/;u:"
select TEXT from MESSAGE; Y]/(R"-2G
drop table MESSAGE; v_)a=I%o&2
IMIZ#/
+-&N<U
Tcl ,DK |jf
#!/usr/local/bin/tcl ;ZHKTOoK
puts "Hello, world!" "D}PbT[V
a\S"d
]:i
:QiYD
TScript i>HipD,TD
? "Hello, world!" 7Bm 18
/%EKq+ZP
hLPg=8nJ_
Turing ;
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put "Hello, world!" RIOR%~U
79U
Th@r}
Genk YtS
UNIX-style shell e48`cX\E
程序中的/bin/sh可改为您使用的shell YLmzMD>
.281;] =
#!/bin/sh %VOn;_Q*B
echo 'Hello, world!' lTJ1]7)
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CB<1]Z
GUI ZKzXSI4
:*gYzk8
Delphi aehGT|
program HelloWorld; m(>_C~rGN
uses fZL%H0&
Dialogs; x|i"x+o
begin '\\dh
ShowMessage('Hello, World!'); ";E Mu(IXb
end. &f'\9lO
O( G|fs
V#.;OtF]
Nuva 'c<vj
jIg
<. /%C6e
)7BL
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) _+g5;S5
.> "'h?O*V]u{
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jXvGL
Visual Basic 3p{N7/z(
MsgBox "Hello, world!" C`+g:qT
'或者 XIh2Y\33ys
Print "Hello, world!" vn|u&}h
OLUQjvnU
,oX48Wg_+
Visual FoxPro 4b=hFwr[?
? "Hello, world!" CZRrb 84
=Xh^@OR
kF.!U/C
X11 G,M &z>ub0
用一个程序 JIvVbI
QLH&WF
xmessage 'Hello, world!' :' ?%%P
h^^zR)EVb
用C++和gtkmm 2 vK6YU9W~J
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wD
#include <iostream> =MDir$1Z
#include <gtkmm/main.h> ]UKKy2r.
#include <gtkmm/button.h> jT"P$0sJAd
#include <gtkmm/window.h> WXu:mv,'e
using namespace std; '$pT:4EuGq
J2Y-D'*s
class HelloWorld : public Gtk::Window "<ow;ciJF
{ In^MZ)?
public: "}Kvx{L8
HelloWorld(); 2K<rK(
virtual ~HelloWorld(); i)f3\?,,
protected: _a@&$NEox
Gtk::Button m_button; (rO_Vfaa
virtual void on_button_clicked(); F>jPr8&
}; ~t[ #p:
0}Rxe
HelloWorld::HelloWorld() : m_button("Hello, world!") \]GO*]CaV
{ B!GpD@U
set_border_width(10); F{)YdqQ
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); +qq,;npi
add(m_button); 9 tkj:8_
m_button.show(); &?>h#H222
} K];nM}<
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HelloWorld::~HelloWorld() {} I\DmVc\l
sv\'XarM
void HelloWorld::on_button_clicked() |0FRKD]
{ t^ LXGQ
cout << "Hello, world!" << endl; ta"/R@ k*
} SY|r'8Z%Q
qJ|ByZ.N+
int main (int argc, char *argv[]) [1B F8:
{ J9S9rir&
Gtk::Main kit(argc, argv); W"S,~y
HelloWorld helloworld; &[,g`S0
Gtk::Main::run(helloworld); )V~Fl$A
} .z&V!2zp
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6g4CUP'Y
Java q9o =,[
import java.awt.*; { 6Lkh
import java.awt.event.*; [:sP Z{
%y.9S=,v,
public class HelloFrame extends Frame &;L4Cj$q
{ }MP2)6
HelloFrame(String title) FP<RoA?W
{ "
]
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super(title); l=D E|:
} 2uFaAAT
public void paint(Graphics g) DR3M|4[
{ fl _k5Q'&p
super.paint(g); Oh6_Bci
java.awt.Insets ins = this.getInsets(); Ntr5Q
IPd
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); sj a;NL
} J7$1+|"
public static void main(String args []) N[X%tf\L]F
{ rg+28tlDn
HelloFrame fr = new HelloFrame("Hello"); S!.aBAW
#n%?}
fr.addWindowListener( nN>D=a"&F
new WindowAdapter() 3U<\y6/
{ 0h!2--Aur
public void windowClosing(WindowEvent e) BF8n: }9U
{ @_^QBw0
System.exit( 0 ); %Y%+K5;AZ
} }u
cqzdk#2
} iKv`[k
); NHA
2 i
fr.setResizable(true); Gir_.yc/
fr.setSize(500, 100); 9\3% 5B7
fr.setVisible(true); #b\&Md|;
} cd{3JGgB
} 8yz A
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GDw4=0u-
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Java Applet zYpIG8"o5
Java Applet用于HTML文件。 o O%!P<