“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。 g{i= $xc
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将Hello World程序作为第一个学写的程序,现在已经成为一种传统。该程序最早出现在由Brian Kernighan和Dennis Ritchie写的计算机程序设计教程《C语言程序设计》。 \*'@F+
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以下是用不同语言写成的Hello World程序的几个例子: Z4c'1-lh
Ada /qMnIo
with Ada.Text_Io; use Ada.Text_Io; KeRC8mYp
procedure Hello is xm1'
begin K~2sX>l
Put_Line ("Hello, world!"); j*[P\Cm
end Hello; v+[S${
(z.n9lkfi
\uZ|2WG`
汇编语言 0[M2LF!m
|Olz h63k:
x86 CPU,DOS,TASM `/'p1?Z"
MODEL SMALL _ E-\aS{
IDEAL =.&8ghJ*M
STACK 100H K*{RGE
[f!
{
-T
DATASEG bJ2>@|3*
HW DB 'Hello, world!$' Dr(2@0P
MG~Z)+g=y
CODESEG a!/\:4-uc
MOV AX, @data X 6tJ
MOV DS, AX x,]x>Up
MOV DX, OFFSET HW JN4gH4ez)
MOV AH, 09H _P!b0x~\
INT 21H K;WQV,
MOV AX, 4C00H ok0ZI>=,
INT 21H J*MH`;-
END cm_5,wB(w
&P>& T
!02y'JS1
x86 CPU,GNU/Linux,NASM hc[J,yG
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). [Eccj`\e g
;Enter this into "hello.asm" then type: ep?D;g
;"nasm -f elf hello.asm" U._fb=
;"ld hello.o -o hello" 0ju-l=w
;"./hello" LU+SuVm
jex\5
section .data ;data section declaration WW{_D
msg db 'Hello World!',0AH @TD=or .&
len equ $-msg ;string length O39
2oV6#!{Z
section .text ;code section declaration F6111Q </
global _start ;entry point (start of execution) 1^*ogMe
_start: mov edx,len ;string length LAo$AiTUR{
mov ecx,msg ;string start R`E:`t4G
mov ebx,1 ;file handle: stdout -j]c(Q MA]
mov eax,4 ;sys_write `B4Ilh"d
int 80h ;kernel system call H#D:'B j29
,zr9* t
mov ebx,0 ;return value 7M7Lj0Y)L
mov eax,1 ;sys_exit HR"clD\{Di
int 80h ;kernel system call ]u!s-=3s
ZS4dW_*[
yo->mD
x86 CPU,Windows,MASM32 *$|f9jVh
.386 DbLo{mFEIj
.model flat,stdcall bGL} nPo
option casemap:none J`)/\9'&&
;Include 文件定义 H"(#Tp ZTE
include windows.inc O8b#'f~
include user32.inc cW_wIy\]&
includelib user32.lib /<n7iIK)
include kernel32.inc
[?|yQ x
includelib kernel32.lib }2LWDQ;po
;数据段 %&&)[
.data Y'~O_coG
szCaption db 'A MessageBox!',0 !j`<iPI7B
szText db 'Hello,world!',0 UkpTK8>&
;代码段 kP+,x H)1
.code /;+\6(+X
start: fdX|t"oz
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK e)B1)c 8s
invoke ExitProcess,NULL t0e5L{ QJ
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ui,!_O .c
end start IqFcrU$4
iKV|~7nwO
*EvW: <
AWK )mf|3/o
BEGIN { print "Hello, world!" } l7jen=(Zb;
tc[Ld#
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BASIC /CO=!*7fz
传统版BASIC(例如GWBASIC): L&)e}"
hZ452W
10 PRINT "Hello, world!" K$,<<hl
20 END mz%l4w?'
<=GZm}/]N
或在提示符输入: E;s_=j1f
^pd7nr~Y
?"Hello, world!":END DJ<+" .v!
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现代版BASIC(例如Quick BASIC): {[tmz;C
yP# Y:s
Print "Hello, world!" .U=x2txb
zps=~|
以下的语句在Quick BASIC中同样有效: /7\q#qIm:
Qt{){uE
? "Hello,world!" lSaX!${R'T
0Zwx3[bq6K
xtD(tiqh.;
BCPL T=u"y;&L
GET "LIBHDR" p *42
@1,
}(!Uq
LET START () BE HQ9tvSc
$( 2"Wq=qy\J
WRITES ("Hello, world!*N") gAorb\iJ
$) Z;a)P.l.>
F7O*%y.';
g$#A'Du
Befunge 'A.5T%n-
"!dlrow olleH">v (>A#|N1U
, 4GF3.?3
^_@ ,)*[Xa_n
)uOtQ0
PkyX,mr#1
Brainfuck 68h1Wjg:"!
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< !9NF@e'&!
+++++++++++++++.>.+++.------.--------.>+.>. )'f=!'X
y[.lfW?)
`.O$RwC&7B
C *9r(lmrfj
#include <stdio.h> /iM1
G\MeJSt*
int main(void) mxF+Fp~
{ +`gU{e,p
printf("Hello, world!\n"); B *O/>=_
return 0; ~<<32t'S:
} R[jFB
7dd
CKZEX*mPC
0Yq_B+IC
C++ eL"'-d+]
#include <iostream> _F[a2PE2+
1G12FV>M
int main() 2HBey
{ aW dI
std::cout << "Hello, world!" << std::endl; UW8yu.`?
return 0; u;H^4}
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} !y~nsy:&7x
dtY8>klI
`ql8y '
C++/CLI ]5QXiF8`
int main() d9S?dx
{ @0PWbs$
System::Console::WriteLine("Hello, world!"); BNjMq
} H.XyNtJ
<)a$5"AP
OqMdm~4B!j
C# (C Sharp) /KC^x=Xv:
class HelloWorldApp ]U'zy+
{ s?m_zJh
public static void Main() FO[ s;dmzu
{ 4Ol1T(J#
System.Console.WriteLine("Hello, world!"); Hs8JJGXWB
} F7jkl4
} =J)-#|eZG
SC%HHu\l
hM!g6\ w
COBOL qvo!nr7
IDENTIFICATION DIVISION. HxW/t7Z(
PROGRAM-ID. HELLO-WORLD. {ixKc
Q~ Ad{yC
ENVIRONMENT DIVISION. z.RM85 ?T
-a>CF^tH
DATA DIVISION. LNR1YC1c
(D?4*9=
PROCEDURE DIVISION. }z/%b<o_
DISPLAY "Hello, world!". hNYO+LrI)
STOP RUN. CfS;F
ewn\'RLZ"@
vv2[t
Common Lisp _8y4U[L
(format t "Hello world!~%") E A55!
A#?Cts,M
|ITCw$T
DOS批处理 K@2"n|
S;
@echo off 2 f%+1uU
echo "Hello, world!" p ]jLs|tat
Y=Ic<WHR
( 1
Eiffel ?RsPAL
class HELLO_WORLD YR/I<m`]}
9S9j
creation tj*0Y-F~
make /DHV-L
feature LcA7f'GVK
make is u' kG(<0Y
local AZik:C"Q
io:BASIC_IO Nc[N 11?O
do Mr4,?Z&`-d
!!io ' e!WZvr
io.put_string("%N Hello, world!") N8kNi4$mp=
end -- make 60ciI,_`
end -- class HELLO_WORLD NLx TiyQy
pZ*%zt]-a
-~(d_
Erlang C,mfA%63
-module(hello). jK[*_V
-export([hello_world/0]). 3HcduJntl
=E!Y f#p+q
hello_world() -> io:fwrite("Hello, World!\n"). P'}B5I~
8b-mW>xsA
^[bFG KE
Forth k$f2i,7'
." Hello, world!" CR YuIF}mUr"
O
x`K7$)
] `q]n
Fortran m`$Q/SyvG
WRITE(*,10) `J03t\
10 FORMAT('Hello, World!') F1-C8V2H
STOP u&TXN;I,p
END ^\`a-l^
,G="wI
[.Fq
l+
HTML +kE~OdZG
<HTML> q7soV(P
<HEAD> .$y'>O*$G
<TITLE> Hello World! </TITLE> BAvz @H
</HEAD> o6~JAvw
<BODY> \Z42EnJ
<p>Hello World!</p> }f}? |&q
</BODY> `[}X_d 1A
</HTML> 9MI9$s2y
?D)$OCS
Dyo^O=0c
HQ9+ W,80deT
H eYlI };
+zLw%WD[l
~a_X
7
INTERCAL T"X]@9g^-
PLEASE DO ,1 <- #13 KDP4 7A
DO ,1 SUB #1 <- #238 :HY =^$\
DO ,1 SUB #2 <- #112 xw_)~Y%\
DO ,1 SUB #3 <- #112 (4ZO[Ae
DO ,1 SUB #4 <- #0 -K8F$\W
DO ,1 SUB #5 <- #64 !||Gfia
DO ,1 SUB #6 <- #238 b.?;I7r
DO ,1 SUB #7 <- #26 (5th
DO ,1 SUB #8 <- #248 ='qVwM['
DO ,1 SUB #9 <- #168 Hsv)]
%p
DO ,1 SUB #10 <- #24
qbS6#7D
DO ,1 SUB #11 <- #16 |xg#Q`O
DO ,1 SUB #12 <- #158 {5c?_U
DO ,1 SUB #13 <- #52 !=*8*?@
PLEASE READ OUT ,1 C$C>RYE?.
PLEASE GIVE UP [Y, L=p
7 j=KiiI
_&s pMf
Java ~&MDfpl
public class Hello 1t^9.!$@y
{ 4J(-~
public static void main(String[] args) Q/4ICgo4
{ &)||~
System.out.println("Hello, world!"); cbm;45 L|
} oUN\tOiS+
} puWMgvv
TKGaGMx6@
'yA/sZ
JSP V'Kied+
<% ZPb30M0
out.print("Hello, world!"); m]fU V8U
%> -D=Sj@G
kRX?o'U~C
GGcODjY>
MIXAL w3>11bE
TERM EQU 19 the MIX console device number F$'u`
ORIG 1000 start address $Q'z9ghEg
START OUT MSG(TERM) output data at address MSG v_/<f&r
HLT halt execution k_1@?&3
MSG ALF "MIXAL" lic-68T
ALF " HELL" HOPy&Fp
ALF "O WOR" x@bqPZ t
ALF "LD " oZ tCx
END START end of the program whHuV*K}
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n4+q7
Nuva `0M6<e]C
<..直接输出..> k[a<KbS
Hello, world! {}Is&^3Z
aD'Ax\-
<..或者..> #rBfp|b]1
^QJJ2 jZ
<. +s8R]3NJ_H
// 不带换行 Xfqin4/jC
? "Hello, world!" 3^y<Db
o'(BL:8s
// 或者 6g"h}p\{S
['pO=ho
// 带换行 0hGmOUO
?? 'Hello, world!' a`f@&A`z
.> g%[:wjV;
7'i{JPm
z,SI
OCaml 5n}<V-yJ*m
let main () = &}2@pu[S?7
print_endline "Hello world!";; >,3 uu}s
c6c@XdV
o}/|"(K
Pascal VR&dy|5BO
program Hello; &V<f;PF(I
begin 3rMJC\h
writeln('Hello, world!'); #Mk:4
end. L)F4)VL
H2#o
X
+ls`;f
Perl dz+Dk6"R
#!/usr/local/bin/perl g\.$4N
print "Hello, world!\n"; ,3f>-mP
GCO: !,1
`<>QKpAn
PHP xYYa%PhIC
<?php ?0*[
L
print("Hello, world!"); L;j++^p
?> v)_FiY QQ6
?(d1;/0v>
Y.Z:H!P);$
Pike mS![J69(
#!/usr/local/bin/pike ~KkC089D
int main() #m?)XB^_
{ we^'R}d
write("Hello, world!\n"); 5BXku=M
return 0; t ;h`nH[
} vMEN14;yH_
;e5PoLc
J-dB
PL/I t $Rc
0
Test: procedure options(main); A7+ZY,
declare My_String char(20) varying initialize('Hello, world!'); VlA]A,P}i
put skip list(My_String); H~Vf;k>
end Test; L98T!5)
7G-?^
p2t04p!
Prolog *OFG3 uM
goal msfE;
write("hello,world!"). N=2T~M 1
x@rQ7K>
eeCG#NFY5
Python vZTXvdF
#!/usr/local/bin/python *{fs{gFw9
print "Hello, world!" h`1<+1J9
S}%z0g<
N2A6C$s
REXX MU
a[}?
say "Hello, world!" .06D_L"M
G)}[!'<rR
a!: N
C
Ruby LiT%d
#!/usr/bin/ruby #d\&6'O
print "Hello, world!\n" ..u{v}4&
H2R3I<j
"*t6KXVaM
Scheme P%e7c,
(display "Hello, world!") A3_p*n@
(newline) PZ8,E{V
,k4pW&A
%mT/y%&:
sed (需要至少一行输入) n
Ab~
sed -ne '1s/.*/Hello, world!/p' $]E+E.P
0 x-g0]
8Zsaq1S
Smalltalk PtW2S 1?j
Transcript show: 'Hello, world!' t7F0[E'=5\
2'S&%UyP
d%'#-w'
SNOBOL `Fr ,,Q81\
OUTPUT = "Hello, world!" 2\1+M)
END @L!^2v
iXnXZ|M
LsERcjwwK
SQL ekyCZ8iai
create table MESSAGE (TEXT char(15)); 08nh y[
insert into MESSAGE (TEXT) values ('Hello, world!'); Y%"$v0D
select TEXT from MESSAGE; 6;'[v}O^^
drop table MESSAGE; +-|""`I1I
rueaP
AEyD?^?
Tcl Zwc&4:5%
#!/usr/local/bin/tcl #2_FM!e
puts "Hello, world!" u$%C`v>
[y`Gp#
jJiuq#;T3
TScript 8+oc4~!A@n
? "Hello, world!" "H(3pl.
]w6F%d
u?72]?SM
Turing $GRw k>N
put "Hello, world!" ,g7O
mnM]@8^G
sX~E ~$_g
UNIX-style shell |(%<FY$
程序中的/bin/sh可改为您使用的shell g.9C>>tj
]gPx%c
#!/bin/sh I20~bW
echo 'Hello, world!' Jl\xE`-7
c.]QIIdK
EX{%CPp7}
GUI cF15Mm2
o4FHR+u<M
Delphi 45.ks.
program HelloWorld; A_@..hX(
uses ZXQ5fBx
Dialogs; e5bXgmyil
begin s 7 nl
ShowMessage('Hello, World!'); n^[a}DX0
end. Lld45Bayb
Q.B)?w m
_\+]/rY9o
Nuva X:Z3R0
<. 2Ty]s~
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 9~~NxWY%x
.> Cty{
:(US um
c+3(|k-M
Visual Basic y$7Ys:R~
MsgBox "Hello, world!" B`eK_'7t
'或者 QTa\&v[f
Print "Hello, world!" e+BZoK ^
Lm}.+.O~d
m@kLZimD
Visual FoxPro O
MQ?*^eA
? "Hello, world!" Tfh2>
Wx-0Ip'9
26aDPTP $<
X11 =|AYT6z,
用一个程序 9cB+x`+Lu
0^>,
xmessage 'Hello, world!' L3\#ufytb
>6Uc|D
用C++和gtkmm 2 EoJ\Jk
\VhG'd3k
#include <iostream> V.
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#include <gtkmm/main.h> yH"i5L9
#include <gtkmm/button.h> FW8Zpr!u
#include <gtkmm/window.h> }y*D(`
using namespace std; `oNJ=,p
j17h_ a;
class HelloWorld : public Gtk::Window QBGm)h?=
{ 99*k&mb
public: NUVKAAgMX
HelloWorld(); bj@sci(1?
virtual ~HelloWorld(); E`_T_O=P
protected: d`rZgY
Gtk::Button m_button; N4,oO H~
virtual void on_button_clicked(); `PAQv+EYz
}; :AlvWf$d
D*2*FDGI
HelloWorld::HelloWorld() : m_button("Hello, world!") IH=$
wc
{ $=diG
set_border_width(10); rP]|`*B
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked));
t* Ct*
add(m_button); T1$p%yQH
m_button.show(); '6vo#D9M
} rK'Lvt@w
\{ | GK
HelloWorld::~HelloWorld() {} L}{3_/t
&c!6e<o[p
void HelloWorld::on_button_clicked() RK-bsf
{ F8<G9#%s\
cout << "Hello, world!" << endl; VsSAb%
} az![u)
k^|z.$+
int main (int argc, char *argv[]) D"aK;_W@h
{ qdZ ^D
Gtk::Main kit(argc, argv); o_Z9\'u
HelloWorld helloworld; zZPWE"u}
Gtk::Main::run(helloworld); :(ql=+vDb4
} pLe4dz WA
8/j|=Q,5
?XdvZf $
Java Nb:j]U
import java.awt.*; ?bM%#x{e
import java.awt.event.*; HdtGyh6X0
J \|~k2~
public class HelloFrame extends Frame Uv[a
~'
{ C)FO:lLr\
HelloFrame(String title) {sB-"NR`K
{ 7.VP7;jys
super(title); % t,42jQ9
} Q 8Ek}O\MC
public void paint(Graphics g) BMO,eQcB
{ `^{G`es
super.paint(g); l=9D!64
java.awt.Insets ins = this.getInsets(); pD[&,gV$
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); H+I,c1sF
} gYN;Fu-9Z
public static void main(String args []) zUJXA:L9
{ < w}i
HelloFrame fr = new HelloFrame("Hello"); :tO?+1
yB7si(,1>
fr.addWindowListener( z =H?@z
new WindowAdapter() EwG+' nlE
{ ::02?
public void windowClosing(WindowEvent e) W (TTsnnx
{ *-]k([wV
System.exit( 0 ); ApSseBhh
} +7OE,RoQ
} U7fpaxc-
); n%;qIKnIq\
fr.setResizable(true); }`
`oojz
fr.setSize(500, 100); ,[p?u']yZz
fr.setVisible(true); hU(
} 7ojh=imY
} exSwx-zxI
P JKY$s.
EhO\N\p(Q=
Java Applet pvt/{
Java Applet用于HTML文件。 u*iqwm.
~7}no}7
HTML代码: *tZ3?X[b
mhIGunK;+
<HTML> n @@tO#!\
<HEAD> <F_w4!
<TITLE>Hello World</TITLE> _`QME r?
</HEAD> Th,]nVsGs~
<BODY> oIE(`l0l
#F
.8x@
HelloWorld Program says:
ArX*3
(1{OQ0N+x
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> ~:!&