“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。 n*\AB=|X
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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》。 ^0 t81,`
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以下是用不同语言写成的Hello World程序的几个例子: C 3`2{1
Ada -CW$p=y}
with Ada.Text_Io; use Ada.Text_Io; X/,4hjg
procedure Hello is b2;Weu3WN
begin Q$iGpTL
Put_Line ("Hello, world!"); ku,Y-
end Hello; o5+N_5OE}E
Hl&]r'bK
>iP>v`J
汇编语言 i>bFQ1Rdx
$jb3#Rj4
x86 CPU,DOS,TASM ?9q{b\=l
MODEL SMALL z41
p$
IDEAL gM|X":j
STACK 100H SJVqfi3A
8xUmg&
DATASEG &,':@OQ
HW DB 'Hello, world!$' (bo{vX
hB:R8Y^?H
CODESEG Fs:l"5~>1
MOV AX, @data Jrlc%,pZ
MOV DS, AX BY:
cSqAW
MOV DX, OFFSET HW whP>'9t.w
MOV AH, 09H uC G^,BQ
INT 21H %j=E}J<H5*
MOV AX, 4C00H cXcn}gKV
INT 21H 8}p 5MG
END yS/ovd
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N i^pP@('
x86 CPU,GNU/Linux,NASM ?Gr<9e2Eo
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ->vfQwBFd
;Enter this into "hello.asm" then type: 0-Xpq,0
;"nasm -f elf hello.asm" aisX56Lc
;"ld hello.o -o hello" 57+^T}/>
;"./hello" ?,|_<'$4T
6X5m1+ Oi^
section .data ;data section declaration r2QC$V:0
msg db 'Hello World!',0AH <u44YvLBm
len equ $-msg ;string length WT(R =bLw
ox {Cm
section .text ;code section declaration O*oL(dk*8L
global _start ;entry point (start of execution)
3 Yl[J;i
_start: mov edx,len ;string length 9!V<=0b/
mov ecx,msg ;string start uXeB OLC
mov ebx,1 ;file handle: stdout FQi"OZHq
mov eax,4 ;sys_write r jU $*+
int 80h ;kernel system call $y=sT({VVe
-tx)7KV-
mov ebx,0 ;return value L~V
63K
mov eax,1 ;sys_exit DC*|tHl
int 80h ;kernel system call h bj^!0m
{NE;z<,*:
/eR @&!D '
x86 CPU,Windows,MASM32 LnZz=
.386 ~;m~)D
.model flat,stdcall W5:S+
option casemap:none _?Jm.nT
;Include 文件定义 !0`ZK-nA6
include windows.inc NLb/Bja
include user32.inc ) !ZA.sx
includelib user32.lib R|!4Y`
include kernel32.inc w_eu@R:u@
includelib kernel32.lib CNcH)2Mk
;数据段 0e8)*2S
.data m{Q{ qJ5>
szCaption db 'A MessageBox!',0 6?}8z
q[
szText db 'Hello,world!',0 R|NmkqTK~(
;代码段 bz H5Lc {%
.code 2~h)'n7Mw
start: Q*$x!q
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK }9P)<[>
invoke ExitProcess,NULL U$VTk
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ;?inf`t
end start |c 8p{)
jopC\Z
0; V{yh
AWK BY,%+>bc)
BEGIN { print "Hello, world!" } 1[3"|
vR1%&(f{
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BASIC hPFIf>%}
传统版BASIC(例如GWBASIC): /q='~t
6mdJ
=b#
10 PRINT "Hello, world!" Mw'd<{
20 END :g<dwuVO
:Np&G4IM>
或在提示符输入: Ev0V\tl>0
XfbkK )d
?"Hello, world!":END `!m+g0
['-ln)96.
现代版BASIC(例如Quick BASIC): `34[w=Zm
W,Dr2$V
Print "Hello, world!" oL}FD !}
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以下的语句在Quick BASIC中同样有效: "P<~bw5
&B3\;|\
? "Hello,world!" WHAEB1c#Q
>47,Hq:2
uX}M0W
BCPL by6E
"7%
GET "LIBHDR" `5 e#9@/e
NqqLRgMOR'
LET START () BE _rjCwo\
$( |k
4+I
WRITES ("Hello, world!*N") >>^c_ 0"O
$) 5W<BEcV\
D"1ciO8^I]
]]%C\Ryy}
Befunge 0TA/ExJ-LT
"!dlrow olleH">v nsgNIE{>gO
, Vp5qul%
^_@ I8^z\ef&
j-{WPJa4\
T/S-}|fhQ
Brainfuck ,u]kZ ]
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< J_P2% b=C
+++++++++++++++.>.+++.------.--------.>+.>. 4TR:bQZs
6dq U4
)sNtwSl^
C U?|s/U
#include <stdio.h> (Z `Y
N;[w`d'#
int main(void) +}9%Duim
{ yxA0#6so
printf("Hello, world!\n"); 5@ZD'
return 0; X#eVw|
} p3^7Hr
>{GC@Cw
nh9K(
C++ cVulJ6
#include <iostream> ^O892 -R
SKG_P)TnO
int main() ?'_iqg3
{ NpRC3^
std::cout << "Hello, world!" << std::endl; L7Skn-*tnA
return 0; T,?^J-h^
} T
86}^=-5
G0*$&G0nb
,sLV6DM
C++/CLI VJr?`
eY4
int main() A0[flIl
{ Y}f%/vus
System::Console::WriteLine("Hello, world!"); U_I'Nz!^t
} =
)(;
L
YH9P-5H
>J8?n,*
C# (C Sharp) EKoCm)}d
class HelloWorldApp NU
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{ 'Z&A5\~
public static void Main() ?=4J
{ *jW$AH
System.Console.WriteLine("Hello, world!"); +Tu:zCv.
} n!tC z<v
} {h@R\bU
Q6vkqu5!=
.)W8
U [
COBOL DDkOg]
IDENTIFICATION DIVISION. MCYrsgg}
PROGRAM-ID. HELLO-WORLD. 45-pJf8F
/-4%ug tD$
ENVIRONMENT DIVISION. a<\m`
Es=
O9>/WmLe
DATA DIVISION. ,g\.C+.S
,%ajIs"Gi
PROCEDURE DIVISION. '-v~HwC+/T
DISPLAY "Hello, world!". #4"\\
STOP RUN. fk",YtS*
]q?<fEG2<
cc^V~-ph
Common Lisp t~bjD V^`
(format t "Hello world!~%") \{~x<<qFd
v1)jZ.:
a{u)~:/G
DOS批处理 w93yhV?
@echo off DsFrA]
echo "Hello, world!" =n#xnZ3
mY%PG
a!>AhOk.
Eiffel 8\ :T*u3
class HELLO_WORLD ;#j/F]xG
Y}Qu-fm
creation }S42.f.p
make 7v\OS-
feature khEHMvVH
make is h<uRlTk
local W~7q&||;C
io:BASIC_IO u|w[b9^r
do dch(HB}[
!!io 2KPXRK
io.put_string("%N Hello, world!") 8ztY_"]3p
end -- make &i!.6M2
end -- class HELLO_WORLD Mv;7kC7]
[(dAv7YbN
.UJDn^@
Erlang |:EUh
-module(hello). Y#rao:I
-export([hello_world/0]). l[h??C`
A>'o5+
hello_world() -> io:fwrite("Hello, World!\n"). \s)j0F)
4ci
@$nL1
;,IGO7R
Forth >+G=|2
." Hello, world!" CR Z?^AX&F
b2:CFtH5
1g|H8CA
Fortran KWd]?e)
WRITE(*,10) :KW
10 FORMAT('Hello, World!') &0N 3 p
STOP y|1-,u.$
END #&$4tTl
wt RAq/
xOEj+%M
HTML $)PNf'5Zg
<HTML> -o=qYkyLK
<HEAD> 1o.]"~0:
<TITLE> Hello World! </TITLE> = [:ruE
</HEAD> t/nu/yz5E
<BODY> >pn?~
<p>Hello World!</p> [Si`pPvl
</BODY> <ZCjQkka>r
</HTML> 'Z;R!@Dm
`+i<:,z-gs
U${dWxC
HQ9+ &:Raf5G-E
H /y
NU0/
4S+P]U*jW
WJ/&Ag1
INTERCAL HhIa=,VY
PLEASE DO ,1 <- #13 tn:tM5m
DO ,1 SUB #1 <- #238 M|e@N
DO ,1 SUB #2 <- #112 $ABW|r
DO ,1 SUB #3 <- #112 r1t TY?
DO ,1 SUB #4 <- #0 c!6.D
DO ,1 SUB #5 <- #64 HbV[L)zYG
DO ,1 SUB #6 <- #238 k}JjSt1_A;
DO ,1 SUB #7 <- #26 B(E+2;!QF
DO ,1 SUB #8 <- #248 DQwbr\xy\
DO ,1 SUB #9 <- #168 Xo$(zGb
DO ,1 SUB #10 <- #24 ^F_c'
DO ,1 SUB #11 <- #16 ?|{P]i?)'
DO ,1 SUB #12 <- #158 6J-tcL*4"%
DO ,1 SUB #13 <- #52 ~|+
PLEASE READ OUT ,1 X(N!y"z
PLEASE GIVE UP Pq !\6s@
ALPZc:
k`xPf\^tf
Java BK6oW3wD/
public class Hello *\-6p0~A
{ joYj`K
public static void main(String[] args) 7)<&,BWc
{
NouT~K`'
System.out.println("Hello, world!"); Sh=z
} n{=vP`V_
} ~#OnA1)
<Y<%=`
".~,(*
JSP F d *p3a
<% C+jlIT+
out.print("Hello, world!"); {ge^&l
%> O &;Cca
Un@d Wf6'
A"d=,?yE
MIXAL $,F1E VJ
TERM EQU 19 the MIX console device number '\=aSZVO
ORIG 1000 start address `BF +)fs
START OUT MSG(TERM) output data at address MSG V+-%$-w>
HLT halt execution FAo\`x
MSG ALF "MIXAL" wNq#vn
ALF " HELL" g2BE-0, R
ALF "O WOR" RQ!kVM@
ALF "LD " =J<3B
H^m
END START end of the program
c7,p5[
Qne@Vf kA
bRfac/:}
Nuva o4\\q66K
<..直接输出..> yIA-+# r[
Hello, world! 6|| zfH
k_/*>lIZY
<..或者..> ?s6v>#H%
?sk{(UN]
<. Y2W|b5
// 不带换行 }k~ih?E^s
? "Hello, world!" ;M1# M:
+9<"Y6
// 或者 $mgW|TBXCQ
~5q1zr)E
// 带换行 yX0nyhq
?? 'Hello, world!' T1_O~<
.> 4hz T4!15
P XKEqcQR
l1l=52r
OCaml jEVDz
let main () = of659~EIW
print_endline "Hello world!";; m%]1~b}"
o#fr5>h-w
TkBHlTa"=
Pascal gNUYHNzDM(
program Hello; u%!/-&?wF
begin GRM6H|.
writeln('Hello, world!'); ;G.5.q[A
end. nl5A{ s
#oW"3L{,
0Ta&o-e
Perl vhIZkz!9
#!/usr/local/bin/perl m Q4(<,F
print "Hello, world!\n"; -M5vh~Tp
dhv?36uE
HCfme<'
PHP %D1 |0v8}
<?php Swa0TiT(
print("Hello, world!"); z?dd5.k
?> 0Q?)?8_
FkE)~g
p>_Qns7W
Pike & 6'Rc#\P
#!/usr/local/bin/pike sPX&XqWx
int main() FJ,"a%m/Q
{ }C4wED.
write("Hello, world!\n"); s|IY
t^
return 0; 6~c#G{kc
} ,_iq$I;
`OFW^Esc
!6!Gx:
PL/I Co>e<be%S
Test: procedure options(main); M8nfbc^
declare My_String char(20) varying initialize('Hello, world!'); >Q$ph=
put skip list(My_String); )Zf1%h~0r
end Test; B6=?Qp/f
aD]!
eP/)
5`Q j<
Prolog bTU[E
goal w=pr?jt1:
write("hello,world!"). 'X<4";$mU
m8@&-,T
!iO2yp
Python $Nd,6w*`
#!/usr/local/bin/python
?iZ2sRWR6
print "Hello, world!" mG"xo^1_H
%UAF~2]g
FA%_jM
REXX E\|nP~;~F9
say "Hello, world!" +F-EgF+J
$=iw<B r
o]EL=j
Ruby vJL Gy]
#!/usr/bin/ruby c
{/J.
print "Hello, world!\n" >
vdmN]
>H^#!eaqw
e2f+Fv
9
Scheme v3#,Z!
(display "Hello, world!") 8Qo'[+4;
(newline) 6<EGH*GQ$
q`,%L1c4
[Ur\^wS
sed (需要至少一行输入) nl
qn:[BU
sed -ne '1s/.*/Hello, world!/p' NMe{1RM
%xN${4)6
v\GVy[Qyv
Smalltalk ]}dQ~lOE
Transcript show: 'Hello, world!' k,[*h-{8
>))CXGE
t;BUZE_!0c
SNOBOL }x?F53I)
OUTPUT = "Hello, world!" T]ls&cW5
END y(o)}m*0
V:$+$"|
RN[I%^$"
SQL SRwD`FF
create table MESSAGE (TEXT char(15)); #8|LPfA
insert into MESSAGE (TEXT) values ('Hello, world!'); i|J%jA
select TEXT from MESSAGE; <XIIT-b[
drop table MESSAGE; qT48Y
oQ 2$z8
)rq |t9kix
Tcl >~SS^I0
#!/usr/local/bin/tcl 6|zhqb|s
puts "Hello, world!" 5BJE
-~mgct5
$#q`Y+;L2
TScript < cvh1~>(
? "Hello, world!" 0V4B Q:v
n:,mo} ?X
e"ehH#i
Turing =5q<_as
put "Hello, world!" d=/0A\O
lG}#K^q
Ut;`6t
UNIX-style shell HwFX,?
程序中的/bin/sh可改为您使用的shell cg.{oM wa
`
y\)X
C7
#!/bin/sh hW~.F
echo 'Hello, world!' 8.i4QaU
F!]Sr'UA
$@>0;i::
GUI u.ggN=Z
BDTL5N
Delphi L=l&,ENy
program HelloWorld; }(oeNPM8
uses ){*+s RBW
Dialogs; c2y,zq|H
begin r3W3;L
ShowMessage('Hello, World!'); 4f([EV[6dK
end. lH}KFFbp
{'5"i?>s0>
O`B,mgT(
Nuva <h/%jM>9/
<. 7l D-|yx
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) Nc;O)K!FH
.> 8R,<S-+v
p49]{2GXb
=V[uXm
Visual Basic k, HC"?K
MsgBox "Hello, world!" X2z<cJG|d@
'或者 U ? +_\
Print "Hello, world!" rmiOeS`:
l3>S{
\84t\jKR
Visual FoxPro 9;E=w+
? "Hello, world!" q,vWu(.
uM-,}7f7
XBQt:7[<
X11 Yc:%2KZ"
用一个程序 (N7uaZ?Z
S/nPK,^d2
xmessage 'Hello, world!' Zh=arlk
2
T!Tiu
用C++和gtkmm 2
c0oHE8@
TSlB.pw%v
#include <iostream> #Wk=y?sn
#include <gtkmm/main.h> e-nA>v
#include <gtkmm/button.h> @^P^-B
#include <gtkmm/window.h> CKYg!\g(:
using namespace std; "& ,ov#
IS2cU'
class HelloWorld : public Gtk::Window hH %>
{ p+VU:%.t
public: .ZpOYhk
HelloWorld(); i%hCV o
virtual ~HelloWorld(); WsI`!ez;D
protected: !@xO]Jwv
Gtk::Button m_button;
Vy\Vpp
virtual void on_button_clicked(); -V2\s
}; N3%X>*'
2 !s&|lI
HelloWorld::HelloWorld() : m_button("Hello, world!") H@Dpht>[
{ "Ms;sdjg}&
set_border_width(10); W>K^55'
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); XKoY!Y\
add(m_button); rUiYR]mV
m_button.show(); Lc*>sOm9
} <ql,@*Y
%6UF%dbYH`
HelloWorld::~HelloWorld() {} d*gAL<M7E
i5 '&u:
void HelloWorld::on_button_clicked() j~CnMKN
{ (|gQ
i{8
cout << "Hello, world!" << endl; )@PnpC%H
} X8nos
G]^[i6PQs
int main (int argc, char *argv[]) w!.@64-
{ yvAO"43
Gtk::Main kit(argc, argv); [q<'ty
HelloWorld helloworld; kv+%
Gtk::Main::run(helloworld); 2w 2Bc+#o
} d#k(>+%=Q
t]/eCsR
Nk|cU;?+
Java j(;^XO Y#
import java.awt.*; ,,H "?VO
import java.awt.event.*; :|S zD4Ag
A#{63_H
public class HelloFrame extends Frame bsIG1&n'T
{ IhnBp 6p9
HelloFrame(String title) $#Pxf
{ ~>2uRjvkwB
super(title); C?PQ>Q!f-
} Z_d"<k}I
public void paint(Graphics g) "yWw3(V2>
{ PRKZg]?
super.paint(g); o/5-T4
java.awt.Insets ins = this.getInsets(); | f#wbw
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); +$2{u_m,
} NYm"I`5w
public static void main(String args []) k6G
_c;V
{ T]#V
HelloFrame fr = new HelloFrame("Hello"); <`H0i*|Ued
ll:UIxx
fr.addWindowListener( ZnG.::&:
new WindowAdapter() V Z(/g"9
{ YOCEEh?
public void windowClosing(WindowEvent e) $.G 7Vt
{ Dl,QCZeM
System.exit( 0 ); 9&6j uL
} %uW=kr
} *@U{[J
); Dg&84,bv^
fr.setResizable(true); jLVJ+mu
fr.setSize(500, 100); =L6#=7hcl
fr.setVisible(true); Bo 35L:r|
} %fS9F^AK
} Oy6fl'FIt
n3^(y"q
ho]:)!|VY
Java Applet D=tZ}_'{t
Java Applet用于HTML文件。 &q