“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。 [3io6XG 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》。 +c\uBrlZQ;
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以下是用不同语言写成的Hello World程序的几个例子: 8YkCTJfBGu
Ada i-Ri;E
with Ada.Text_Io; use Ada.Text_Io; mJS-x-@
procedure Hello is <W88;d33r=
begin $EPDa?$*
Put_Line ("Hello, world!"); /G#W/Q
end Hello; &A~(9IV
-(|}:J
t2&}
汇编语言 73(5.'F
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x86 CPU,DOS,TASM d(6&kXK
MODEL SMALL zK&J2P`
IDEAL f9J]-#I if
STACK 100H u
%&4[zb
~,reS:9RZ
DATASEG @wW)#!Mou
HW DB 'Hello, world!$' I}1<epd ,
}3y Q*<
CODESEG X e\,:~
MOV AX, @data kF7`R4Sz
MOV DS, AX ,4kipJ!,yK
MOV DX, OFFSET HW (r$QQO)/
MOV AH, 09H W[.UM
INT 21H ?XO}6q<tM
MOV AX, 4C00H q'<K$4_,%
INT 21H 8^"P'XQ
END T!gq
Z
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BG2Z'WOH
x86 CPU,GNU/Linux,NASM @!s(Zkpev
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). BZ@v8y _TA
;Enter this into "hello.asm" then type: Wx-rW
;"nasm -f elf hello.asm" Fj0h-7L
;"ld hello.o -o hello" }}~ t!/x
;"./hello" _CXXgF[OCA
btIh%OM
section .data ;data section declaration C'CdVDmX
msg db 'Hello World!',0AH (1?k_!)T
len equ $-msg ;string length CiC@Z,ud`
,v*<yz/
section .text ;code section declaration HZzdelo
global _start ;entry point (start of execution) ,Y2){8#l
_start: mov edx,len ;string length +0FmeM&`h_
mov ecx,msg ;string start 8:4`q9
mov ebx,1 ;file handle: stdout C$fQ[@
mov eax,4 ;sys_write fO$~jxR.
int 80h ;kernel system call KiG/XnS
[[d@P%X&
mov ebx,0 ;return value qVmG"et'J
mov eax,1 ;sys_exit iC\t@BVS
int 80h ;kernel system call )ia$pes
d#wK
8sxH)"S
x86 CPU,Windows,MASM32 ?u /i8
.386 Ue]GHJ2
.model flat,stdcall _K|513I
option casemap:none ]mmL8%B@_
;Include 文件定义 NI%
()
include windows.inc @awN*mO
include user32.inc 0qMf6
includelib user32.lib OgBZoTT
include kernel32.inc E[E[Za^Y
includelib kernel32.lib RVb}R<yU+
;数据段 Z
)dz
.data ZVmgQ7m
szCaption db 'A MessageBox!',0 OQZ\/~o 5
szText db 'Hello,world!',0 z hFk84
;代码段 BFyVq
.code $2\k| @)s
start: YC0FXN V
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK *FEY"W+bY
invoke ExitProcess,NULL 9Fm><,0'u
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
'HDbU#vD
end start .]W A/}
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^YG.eT6iG
AWK cYMlcwS
BEGIN { print "Hello, world!" } :N([s(}!$2
7A[`%.!F6
&-1;3+#w
BASIC y1:#0
传统版BASIC(例如GWBASIC): <sq@[\l}a
7lz"^
10 PRINT "Hello, world!" 27Ve $Q8]v
20 END v
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sd~T
或在提示符输入: =!%+ sem
/K]<7
?"Hello, world!":END oZ(T`5
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现代版BASIC(例如Quick BASIC): E64d6z^7u
I*^3 Z
Print "Hello, world!" >HXmpu.O
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以下的语句在Quick BASIC中同样有效: h&6v&%S/L
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? "Hello,world!" "?Cx4<nsM
?=h{`Ci^ $
p4OiCAW;
BCPL ndIU0kq3
GET "LIBHDR" &% \`Lwh
^.9I[Umua
LET START () BE xPi/nWl`|
$( `?ijKZ}y5
WRITES ("Hello, world!*N") $lMEZt8A
$) r%/*,lLO
@gZ<!g/vza
CS*wvn;.
Befunge ^#4?v^QNh
"!dlrow olleH">v ?#LbhO*
, g qRwN p
^_@ )R2BTE:
kt; |
$
R)w|bpW
Brainfuck (fjAsbT
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< ]7, mo
+++++++++++++++.>.+++.------.--------.>+.>. 6DG:imGl
'B>%5'SdD
nVC:5ie
C 1wa zJj=v
#include <stdio.h> a!>yX
ex
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int main(void) bVc;XZwI
{ *SX'Or,
printf("Hello, world!\n"); kMHupROj
return 0; ^c{,QS{
} kgvB80$4
I~$LIdzw
,/;mK_6
C++ {g>k-.
#include <iostream> })R8VJ&C/
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int main() #w4=kWJ[
{ q1Si*?2W
std::cout << "Hello, world!" << std::endl; s}d1 k
return 0; S3=M k~_&
} .f V-puE
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JxP=[>I
C++/CLI o AkF
int main() ?[K+Ym+
{ ?5qo>W<7
System::Console::WriteLine("Hello, world!"); RrkS!E[C
} T7AFL=
/]Fs3uf
#cBt@SEL'
C# (C Sharp) -BNlZgk-^
class HelloWorldApp V6,D~7
{ y#AwuC K
public static void Main() Eg"DiI)7
{ aPq9^S*
System.Console.WriteLine("Hello, world!"); ,R1`/aRy
} fa#]G^f
} yWACIaj
H V`{YuP
gOI#$-L
COBOL *=1;HN3
IDENTIFICATION DIVISION. `CI9~h@k
PROGRAM-ID. HELLO-WORLD. \guZc}V]:\
.[hQ#3)W
ENVIRONMENT DIVISION. %6}S'yL
mN^92@eebC
DATA DIVISION. 8z^?PZ/
K2TO,J3 E
PROCEDURE DIVISION. |i"A!rW
DISPLAY "Hello, world!". sD$
\!7:b
STOP RUN. )""i"/Mn
/(w:XTO<
2sjP":
Common Lisp 8x
jJ
(format t "Hello world!~%") BYEqTwhT&
*J!oV0#1
\`#;J?Y|`F
DOS批处理 ,epKt(vl
@echo off {4 !%'~
echo "Hello, world!" 22\Buk}?
FDaHsiI:
AC=cz!3iB
Eiffel \^kyC1
class HELLO_WORLD p;:tzH\l
<0T4MR7
creation (}fbs/8\p
make aC>r5b#:
feature TR rO-
make is 0K'lr;
local <JHU*Z
io:BASIC_IO V; 1r
do o$m64l
!!io br}.s@~
io.put_string("%N Hello, world!") 36JVnW;
end -- make WIXzxI<)
end -- class HELLO_WORLD y6'Fi(2yw
H*3f8A&@s
|EaGKC(
Erlang -gh',)R
-module(hello). $"T1W=;j9
-export([hello_world/0]). p2PD';"
[UquI "
hello_world() -> io:fwrite("Hello, World!\n"). rd\mFz-SB
[] 0`>rVq
FpE83}@".w
Forth 1 ,o C:N
." Hello, world!" CR StWDNAf)
%4 cUa| =?
3O<<XXar
Fortran {o7ibw=E)
WRITE(*,10) h[3N/yP
10 FORMAT('Hello, World!') c6s*u%+},
STOP z.eqOPW
END +DM+@F
B_M)<Ad
?V#%^ 57p
HTML bK; -X cm
<HTML> &Z5$
5,[
<HEAD> 0G9@A8LU
<TITLE> Hello World! </TITLE> Giz9jzF\
</HEAD> 'g#Ml`cm
<BODY> fyx-VXu
<p>Hello World!</p> TQ" [2cY
</BODY> iwCnW7:
</HTML> %p"x|e
'/SMqmi
a@zKi;
HQ9+ DTN @b!
H \P!v9LX(
a2UER1Yp"
TclZdk]%T
INTERCAL g8mVjM\B;
PLEASE DO ,1 <- #13 [+gX6
DO ,1 SUB #1 <- #238 >DQl&:-)t
DO ,1 SUB #2 <- #112 7'j?GzaQ+
DO ,1 SUB #3 <- #112 HGB96,o f9
DO ,1 SUB #4 <- #0 4XQ v
DO ,1 SUB #5 <- #64 iBxCk^
DO ,1 SUB #6 <- #238 gGN[AqR
DO ,1 SUB #7 <- #26 WW@/q`h
DO ,1 SUB #8 <- #248 E@"+w,x)
DO ,1 SUB #9 <- #168 AZorz Q]s
DO ,1 SUB #10 <- #24 Y:G6Nd
VFM
DO ,1 SUB #11 <- #16 B8Jev\_
DO ,1 SUB #12 <- #158 ' rHkJ
DO ,1 SUB #13 <- #52 w@.E}%bwq
PLEASE READ OUT ,1 A2Rr*e
PLEASE GIVE UP b0x9}
2j H`
Tx0/3^\>8A
Java 17H_>a\`
public class Hello !li Q;R&
{ :^3MN
public static void main(String[] args) 6YrkS;_HS
{ .Q?cNSWU
System.out.println("Hello, world!"); 5)V J
} )& %X
AW{
} [f.[C5f%"'
(p68Qe%OuG
Q0,]Q ]_
JSP -a]oN:ERb
<% m'r6.Hp3Ng
out.print("Hello, world!"); +f+x3OMX3
%> VGM8&J{o'
s}`ydwSg8
w@nN3U+
MIXAL B!!xu
TERM EQU 19 the MIX console device number ;Y
j_@=
ORIG 1000 start address }Nl-3I.S^
START OUT MSG(TERM) output data at address MSG E92dSLhs5
HLT halt execution +kH*BhSj
MSG ALF "MIXAL" ;QW6Tgt11
ALF " HELL" v(FO8*5DZ
ALF "O WOR" ep3_G\m
ALF "LD " !s?vj
<
END START end of the program '7
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wz9V)_V*
sJ7r9O`x
Nuva KKa"Ba$g
<..直接输出..> Bca\grA
Hello, world! p{t2pfb
Sq UoXNw
<..或者..> '_g8fz
3
jbn{5af
<. Ngu+V
// 不带换行 engql;
? "Hello, world!" QSAz:Yvf|
G#Nh)ff
// 或者 X;v/$=-mz
n+rAbn5o$
// 带换行 =YB3^Z
?? 'Hello, world!' Y@TZReb
.> N3MMxm_u
O%tlj@?
jWiB_8-6
OCaml $9+}$lpPd
let main () = IcoK22/
print_endline "Hello world!";; ^EjZ.#2l;
TWQf2
`;*Wt9
Pascal _wCp.[3?t
program Hello; ub{<m^|)
begin gr4Hh/V
writeln('Hello, world!'); D+LeZBJ
end. yps7MM-r
,@khV
]3NH[&+
Perl `U#*O+S-^
#!/usr/local/bin/perl PGP9-M
print "Hello, world!\n"; "T<Q#^m
| 5Mhrb4.
3:YZC9
PHP R6h(mPYA
<?php 8PDt 7
\
print("Hello, world!"); z62e4U][
?> >9Fs)R]P
|UZ#2
]B:g<}5$4
Pike 6;l{9cRgc
#!/usr/local/bin/pike Jv1.Yz
int main() dum! AO
{ YCj"^RC^
write("Hello, world!\n"); ,6}HAC $
return 0; >+7+ gSD#:
} 0J7[n*~
4G;+ETp
Fm`hFBKW
PL/I >E#| H6gx
Test: procedure options(main); y)"aQJ>
declare My_String char(20) varying initialize('Hello, world!'); *,%H1)Tj}
put skip list(My_String); E O52 E|
end Test; XGFU *g`kq
d~D<;7M
XJ
F8Rd#^9PD
Prolog )V!9&
goal X'TQtI
write("hello,world!"). /wljbb/s
gkI(B2,/
mSY;hJi
Python g*N~r['dZ
#!/usr/local/bin/python NC>rZS]
print "Hello, world!" X<x"\Yk
m_W\jz??k
;? '`XB!
REXX %q;3bfq@N
say "Hello, world!" 8%_XJyg
[kt!\-
9Y&n$svB
Ruby z~L4BY @z
#!/usr/bin/ruby M+gQN}BAr
print "Hello, world!\n" \'q-Xr'}M
up=4B
Q|@!zMy
Scheme %+L:Gm+^g#
(display "Hello, world!") Gk;==~
(newline) 2ELw}9
2_x}wB0P
X{| 1E85fl
sed (需要至少一行输入) )r~$N0\D
sed -ne '1s/.*/Hello, world!/p' pT>[w1Kk^
J|W~\(W6i
? #-"YO7
Smalltalk f` 2W}|(jA
Transcript show: 'Hello, world!' U)=StpTT
B0?E$8a
"6['!rq0
SNOBOL _'ltz!~
OUTPUT = "Hello, world!" H~i+:X=I
END (Q o
[D[s^<RJs
h1z[ElEeoP
SQL >DBaKLu\
create table MESSAGE (TEXT char(15)); ]ctUl#j
insert into MESSAGE (TEXT) values ('Hello, world!'); ]!d #2(
select TEXT from MESSAGE; MOP/ q4j[
drop table MESSAGE; >~){KV1~
R56:}<Y,
IiHl"2+/
Tcl o|>2X[T
#!/usr/local/bin/tcl f>s3Q\+
puts "Hello, world!" !e?=I
*TfXMN?w
5n"b$hMF
TScript 89v9BWF
? "Hello, world!" DxdiXf[j
j5Vyo>
:7KcD\fCj
Turing \zR@FOl`q
put "Hello, world!" q{ItTvL
{CG%$rh
O]DZb+O"
UNIX-style shell Zgkk%3'^'
程序中的/bin/sh可改为您使用的shell M/x49qO#
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#!/bin/sh v(W$\XH
echo 'Hello, world!' JfxD-9U^>u
Jt\?,~,
&p8b4y_
GUI q!\K!W \
\rn:/
Delphi s$4!?b$tw
program HelloWorld; )[|TxXz
d
uses { " woBOaA
Dialogs; ( n;# Z,
begin jAB~XaT ,
ShowMessage('Hello, World!'); g,h'K
end. Wz)s#
_Jx.?8
T?4MFx#
Nuva bX6eNk-L
<. 2 DJs'"8
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 7m~.V[l1
.> \XFF(
+)k%jIi!
eU&[^
Visual Basic ]dHU
MsgBox "Hello, world!" .t*MGUg
'或者 FloCR=^H
Print "Hello, world!" 8iaP(*J
rz+)z:u
l
tE`
Visual FoxPro JWoNP/v6
? "Hello, world!" bW\OKI1
as=Z_a:0N
ghq [oK
X11 N_(qMW
用一个程序 Au<NUc
2
u&z5)iU
xmessage 'Hello, world!' 2kzm(K
s_S[iW`l=
用C++和gtkmm 2 Vr@I9W;D#
\B/+.\
#include <iostream> lqh+yX%*
#include <gtkmm/main.h> *`&4<>=n
#include <gtkmm/button.h> T}d%X MXq
#include <gtkmm/window.h> P&@ 2DI3m
using namespace std; i}"Eu<
P
1O3"W;SR<:
class HelloWorld : public Gtk::Window _;/onM
{ A.vWGBR
public: }c|)i,bL
HelloWorld(); 2XI%z4\)!
virtual ~HelloWorld(); UfIH!6Q
protected: D@A@5pvS
Gtk::Button m_button; 70hm9b-
virtual void on_button_clicked(); VN6h:-&iY
}; 0aj4.H*%
=$xxkc.~G
HelloWorld::HelloWorld() : m_button("Hello, world!") @'>h P
{ ^h
#0e:7<
set_border_width(10); 7%DA0.g
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); "I+71Ce
add(m_button); }TE4)vXs
m_button.show(); 7vO3+lT/Y;
} S bI7<_
E>>@X^ =
HelloWorld::~HelloWorld() {} :'p+Ql~c
K,_d/(T4
void HelloWorld::on_button_clicked() ;|7]%Z}%
{ 3H"bivK
cout << "Hello, world!" << endl; vdA3
} U?BuV
s\&qvL1D
int main (int argc, char *argv[]) }\Kki
{ <4UF/G)
Gtk::Main kit(argc, argv); H{qQ8j)
HelloWorld helloworld; W
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Gtk::Main::run(helloworld); ip.aM#
} Zw6UH;5
kD1[6cJ!=.
+9Vp<(
Java )~@iM.}S2
import java.awt.*; LWwWxerZ
import java.awt.event.*; X|]&K
{Aq2}sRl{
public class HelloFrame extends Frame ))Q3;mI"
{ VaKBS/y"
HelloFrame(String title) ~Psv[b=]
{ uRIa
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super(title); !<'0
GOl
} Qn0 1ig
public void paint(Graphics g) (rF XzCI
{ luLt~A3H$
super.paint(g); Ew.a*[W''
java.awt.Insets ins = this.getInsets(); DVC<P}/
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); 8/4i7oOC
} i_<