“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。 hpXW tQ
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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》。 ym5@SBqIx
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以下是用不同语言写成的Hello World程序的几个例子: &Ih }"
Ada <_8bAO8\
with Ada.Text_Io; use Ada.Text_Io; )SP"V~^Wn
procedure Hello is 'y!qrmMRr
begin 5|0/$ SWd*
Put_Line ("Hello, world!"); Q\s+w){f%
end Hello; @_"cMU!
nGWy4rY2S
gdD|'h
汇编语言 oUsfO-dET^
7:F0?l*
x86 CPU,DOS,TASM L/Kb\\f
MODEL SMALL ,
poc!n//
IDEAL ]#4kqj}
STACK 100H q !9;JrX
00D.Jn
DATASEG ;bG?R0a
HW DB 'Hello, world!$' jMBMqQNU
?J+jv
CODESEG #Pk{emYW
MOV AX, @data ;{0alhMZ
MOV DS, AX 5cf?u3r!qJ
MOV DX, OFFSET HW OcMB)1uh\
MOV AH, 09H >"1EN5W
INT 21H T^]]z}k
MOV AX, 4C00H xGr{ad.N
INT 21H G*EF_N.G0
END qJs_ahy(
':}9>B3 S
h/A\QW8Sd
x86 CPU,GNU/Linux,NASM ;]xc}4@=mg
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). C3^3<
;Enter this into "hello.asm" then type: uQbag]&j
;"nasm -f elf hello.asm" ;;i419
;"ld hello.o -o hello" SVwxK/Fci
;"./hello" DM v;\E~D
zmZU"eWp)
section .data ;data section declaration p:b{>lM
msg db 'Hello World!',0AH qF^P\cD
len equ $-msg ;string length HOu$14g
k@%5P-e}
section .text ;code section declaration $- ]G6r
global _start ;entry point (start of execution) [4C_iaE
_start: mov edx,len ;string length d, g~.iS~
mov ecx,msg ;string start %pWJ2J@
mov ebx,1 ;file handle: stdout }R}M>^(R4
mov eax,4 ;sys_write 6oQ7u90z*
int 80h ;kernel system call y`$qcEw
'LG\]h>+)
mov ebx,0 ;return value aC=2v7*
mov eax,1 ;sys_exit !Z>,dN
int 80h ;kernel system call #tUhul/O
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`qd5+~c
x86 CPU,Windows,MASM32 9$U>St
.386 .<%q9Jy#
.model flat,stdcall 7hx^U90K
option casemap:none F$4=7Njv
;Include 文件定义 h&i(Kfv*
include windows.inc q1YNp`]0i8
include user32.inc yn+m,K/
includelib user32.lib xcl;~"c*
include kernel32.inc X ]&`"Z]
includelib kernel32.lib 82r{V:NCK)
;数据段 g qORE/[
.data dHOH]x
szCaption db 'A MessageBox!',0 o$->|k
szText db 'Hello,world!',0 a}` M[%d7
;代码段 4e\w C
.code fA?Wf[`x
start: (&)uWjq
`
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK p cUccQ
invoke ExitProcess,NULL +KExK2=
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 3,i`FqQa
end start X`&Us
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Xo(W\Pes
AWK JcP<@bb>B
BEGIN { print "Hello, world!" } HL[V}m
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BASIC <l,e6K
传统版BASIC(例如GWBASIC): tjV63`LD
v@2?X4n
10 PRINT "Hello, world!" B^/Cx
20 END 0Z((cI\J
:T6zT3(")D
或在提示符输入: G M;uwL#
s$9ow<oi]
?"Hello, world!":END sX>|Y3S\U
g&B7Y|Es
现代版BASIC(例如Quick BASIC): K; hP0J
}Dcpe M?
Print "Hello, world!" ML$#&Z@
*7
j&.JAQ*2;
以下的语句在Quick BASIC中同样有效: Tf$> ^L
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? "Hello,world!" +N B5Fd4
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FB+nN5D/
BCPL uVZm9Sp
GET "LIBHDR" :+^`VLIf
26_PFHQu4
LET START () BE ;$!0pxL)s
$( MD1d
WRITES ("Hello, world!*N") <;+QK=f
$) S)2 U oj
[A!=Hv_$
H lFVc
Befunge {![E)~
"!dlrow olleH">v bDw\;bnG
, b1e)w?n
^_@ :SF8t` 4`
R*dXbI&,e
|SJ%Myy
Brainfuck ^CDh! )
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< Bt\V1 )
+++++++++++++++.>.+++.------.--------.>+.>. I.6#>=
=`(\]t"I
aQ 6T2bQ
C hA~5,K0b
#include <stdio.h> aC'#H8e|j
CS"k0V44}
int main(void) 1*@Q~f:Uk
{ wE <PXBl\b
printf("Hello, world!\n"); M@.?l=1X
return 0; :e_yOT}}
} lQ.3_{"s
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Tc;BE
C++ eLN(NSPoS
#include <iostream> xdsF! Zb
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int main() cz>`$Zz
{ "Jyb?5
std::cout << "Hello, world!" << std::endl; 7.^1I7O
return 0; <l9qhqHv&
} =)6|lz^
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8=sMmpB 7u
C++/CLI
{K=[Fu=
int main() {}PBYXR
{ zgpvI~Ck
System::Console::WriteLine("Hello, world!"); ~]K<Vh`
} 7XIG ne%v
}W]k1Bsx
f7]C1!]
C# (C Sharp) #Bn7Cc
class HelloWorldApp l]e7
{ !jJH}o/KW
public static void Main() na4^RPtN\e
{ Y2p~chx9
System.Console.WriteLine("Hello, world!"); b(g?X
(&
} OEN'c0;5
} Zf`ddT
j~9,Ct
f['pHR%l2$
COBOL +@oo8io
IDENTIFICATION DIVISION. Zo(QU5m0
PROGRAM-ID. HELLO-WORLD. 7\;gd4Ua1
obIYC
ENVIRONMENT DIVISION. h@?BA<'S
;,_c1x/F
DATA DIVISION. ?jBh=X\]:
POUD*(DqNK
PROCEDURE DIVISION. ^Ul*Nm
DISPLAY "Hello, world!". t3$+;K(
STOP RUN. .We"j_
}
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Common Lisp kIUb`b>B
(format t "Hello world!~%") .hXdXY
fL1EQ)
ze%)fZI0f
DOS批处理 b<rJ@1qtJ
@echo off _52BIrAO2
echo "Hello, world!" W%7m3/d
)wYbcH
80ms7 B
Eiffel M}6? |ir
class HELLO_WORLD B\!.o=<h
HPR*:t
creation jG3i
)ALx
make x-{awP
feature ~v<,6BS<$Z
make is lF LiW
local U~8 oE_+
io:BASIC_IO wKAc ;!
do (Sg52zv
!!io \uV;UH7qe
io.put_string("%N Hello, world!") FPPGf!Eq
end -- make ^Ru/7pw5
end -- class HELLO_WORLD FLekyJmw~
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8.Ty
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Erlang Dy@f21+
-module(hello). *m sW4|=^2
-export([hello_world/0]). D ~Y3\KP
q
y8=4~40
hello_world() -> io:fwrite("Hello, World!\n"). Ge;plD-f
/TgG^|
.sDVBT'%
Forth 9f4#b8
." Hello, world!" CR cx8H.L
WNPdy m
=p)Wxk
Fortran pJ#R :#P
WRITE(*,10) )#dP:
10 FORMAT('Hello, World!') ^25[%aJI
STOP 93d ht
END B6b {hsO
xe6 2gaT
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HTML AT U
2\Y
<HTML> =kvYE,,g_
<HEAD> >p 7e6%
<TITLE> Hello World! </TITLE> RSY{IY
</HEAD> {
O*maE"
<BODY> &?<o692
<p>Hello World!</p> vF K&.J
</BODY> z<jWy$Ta;
</HTML> vF=d`T<
B jR:#*<qD
pFg9-xd%
HQ9+ ?8X+)nU@
H @3K 4,s
Gu:aSb
|vnfY;
;z1
INTERCAL <c6C+OWT,
PLEASE DO ,1 <- #13 k]"Rg2>%
DO ,1 SUB #1 <- #238 ,g$N
DO ,1 SUB #2 <- #112 Ee##:I[z
DO ,1 SUB #3 <- #112 X] /r'Tz
DO ,1 SUB #4 <- #0 s Hu~;)
DO ,1 SUB #5 <- #64 '@iS5Fni
DO ,1 SUB #6 <- #238 ~J6c1jG
DO ,1 SUB #7 <- #26 Z;W`deA
DO ,1 SUB #8 <- #248 fmvv
q1G&
DO ,1 SUB #9 <- #168 fO.gfHI
DO ,1 SUB #10 <- #24 s]r"-^eS3
DO ,1 SUB #11 <- #16 % ;2x.
DO ,1 SUB #12 <- #158 qf9.S)H1Z
DO ,1 SUB #13 <- #52 #]|9aVrr
PLEASE READ OUT ,1 mIZ#uW
PLEASE GIVE UP 9 frS!AQ
LRv-q{jP;
o=2y`Eq
Java !G#3jh:kiY
public class Hello oM$EQd`7
{ }9Z?UtS
public static void main(String[] args) ^6ZA2-f/<8
{ v>$GVCY
System.out.println("Hello, world!"); EpCUL@+
} eGblQGRS
} SN'LUwaMp!
=1%3".
"n@
l\*}
JSP J%;TK6
<% R)#D{/#FW
out.print("Hello, world!"); ewk62{
%> H>`?S{J
[Qv%
fdN-Zq@'
MIXAL N@^?J@#V
TERM EQU 19 the MIX console device number ])a?ri
ORIG 1000 start address ]RQQg,|D
START OUT MSG(TERM) output data at address MSG A[ ZJS
HLT halt execution _#e='~;
MSG ALF "MIXAL" bI=\n)sEz
ALF " HELL" z1F[okLA
ALF "O WOR" S~}?6/G.
ALF "LD " &S<tX]v
END START end of the program Vr f` :%
Q/=L(_1l
pP)0 l
Nuva 'd1E~A
<..直接输出..> #Qy*zU#9
Hello, world! >\$qF
JB'q_dS}
<..或者..> r%$-F2.p
>)U 7$<&b
<. v/Z}|dT"
// 不带换行 ][6$$Lz
? "Hello, world!" dLal15Pb
~c`@uGw
// 或者 ![:S~x1
+?(2-RBd
// 带换行 n4ce)N@
?? 'Hello, world!' <<w $Ur
.> t[F tIj6
vBQ5-00YY=
2,;+)
OCaml EH] 5ZZ[Z
let main () = 6U7z8NV&[
print_endline "Hello world!";; I
[0od+K
]{nFB3vtB
Y1Bj++?2
Pascal Sy'/%[+goJ
program Hello; ev#d1s|<S
begin M{:gc7%
writeln('Hello, world!'); ,ibI@8;#~'
end. x"v5'EpL
i3*?fMxhu)
Wb!%_1dER
Perl 0;3;Rs
#!/usr/local/bin/perl Y+V*$73`
print "Hello, world!\n"; <2ffcBv
lyIstfRh15
1p23&\\~
PHP Nj.(iBmr
<?php ]<4Yor}t{;
print("Hello, world!"); 23y7l=.b/
?> f3V&i)w(
sxO_K^eD
#:vos VqG
Pike WMZa6cH
#!/usr/local/bin/pike '9*wr*
int main() W2yNEiH
{ bUAjt>+
write("Hello, world!\n"); LlRvm/
return 0; jY:(Tv3~
} ~DPg):cZ
{j,bV6X
2ADUJ
PL/I bI@+Or
Test: procedure options(main); W]_+3qvZ
declare My_String char(20) varying initialize('Hello, world!'); LZM[Wg#
put skip list(My_String); Z,,Da|edH
end Test; BYVp~!u
}%y_LcL
X&^t 8
Prolog \ H<'W"
goal eOD;@4lR
write("hello,world!"). A,lcR:@w
QXq~e
8:$kFy\A'
Python Q2^}NQO=
#!/usr/local/bin/python M$%aX,nk'
print "Hello, world!" vjZX8KAiZ
EiP_V&\
5xLuu KG
REXX _myam3[W
say "Hello, world!" !;'U5[}8
EZIMp8^
o&;+!Si@T
Ruby {NKDmeg:D
#!/usr/bin/ruby y= cBpC
print "Hello, world!\n" [_L:.,]g8
?_m;~>C
%I(N
Scheme
=^q:h<
(display "Hello, world!") O<iE,PN)
(newline) r&1N8o
e@Z(z^V
AvEJX0"\df
sed (需要至少一行输入) yXppu[=
sed -ne '1s/.*/Hello, world!/p' ^%#v
AS
O jE wJ$$
!z(POK
Smalltalk bW3e*O$V
Transcript show: 'Hello, world!' q'3=
*FK!^Y
Z?XE~6aP>
SNOBOL V{{b^y
OUTPUT = "Hello, world!" wR nt$1
END "]*0)h_
l
K}('7\
~e~4S~{
SQL AJ^9[j}
create table MESSAGE (TEXT char(15)); pL.r
9T.
insert into MESSAGE (TEXT) values ('Hello, world!'); S<88>|&n]
select TEXT from MESSAGE; Nypa,_9}
drop table MESSAGE; m,Q<4'
H:,rNaz7D^
jp=^$rS6[
Tcl 1xL2f&bG
#!/usr/local/bin/tcl RQ9fA1YP
puts "Hello, world!" JT[|l-\zo
'<>pz<c
,U],Wu)
TScript ~hE"B)
e
? "Hello, world!" V_Wv(G0-\
`-]*Qb+
f@[q# }6
Turing ]*%0CDY6`N
put "Hello, world!" wcsUb9(
'Xxt[Jy
,hT t]w
UNIX-style shell KNQX\-=
程序中的/bin/sh可改为您使用的shell b0PF7PEEQ
r<UZ\d -
#!/bin/sh Xv]O1 f cI
echo 'Hello, world!' fk#SD "iJ
2o6KVQ
^Ml)g=Fq
GUI ;5PXPpJ
::9U5E;!
Delphi +QtK
"5M
program HelloWorld; ojT TYR{
uses ~U~KUL|
Dialogs; *-3K],^a
begin [,8@oM#
ShowMessage('Hello, World!'); \gDf&I
end. f lVQG@
p#qQGJe
#=OKY@z/
Nuva :nCGqg
<. xl5mI~n_~
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) +]Po!bN@@
.> ht!o_0{~
a+uSCs[C
ucL}fnY1
Visual Basic C6M|A3^T
MsgBox "Hello, world!" P"XF|*^U
'或者 QuT8(s1Q!
Print "Hello, world!" kHo0I8
)_,*2|b
g&`e2|[7
Visual FoxPro ht(RX
? "Hello, world!" *_!nil 3(i
pTprU)sa7
[_G_Wl'#8
X11 pBL,kqYNA>
用一个程序 ^QpP'
2h IM!wQ
xmessage 'Hello, world!' Uk`ym
<wW#Wnc ]
用C++和gtkmm 2 P5P:_hr
l"W9uS;\T
#include <iostream> }/4 AT
#include <gtkmm/main.h> 3PIZay
#include <gtkmm/button.h> r.lH@}i%n
#include <gtkmm/window.h> p3&/F=T;)
using namespace std; ,5mK_iUw3
"n^h'// mn
class HelloWorld : public Gtk::Window &-:ZM0Fl
{
WUvrC
public: Mi%i_T^i
HelloWorld(); COH0aNp;
virtual ~HelloWorld(); A0m
protected: :"5i/Cx
Gtk::Button m_button; n!2"pRIi
virtual void on_button_clicked(); 3%bCv_6B
}; ZNuz%VO
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HelloWorld::HelloWorld() : m_button("Hello, world!") ZgP=maQk
{ yH|[K=?S[
set_border_width(10); 9E'fM
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); P(l$5x]g,
add(m_button); O:IU|INq8
m_button.show(); yS^";$2Tc
} mKugb_d?
b|^g51v
HelloWorld::~HelloWorld() {} umaF}}-Q{
Dq/_^a/1
void HelloWorld::on_button_clicked() '-oS=OrZ
{ :.e`w#$7
cout << "Hello, world!" << endl; |]1-ck!
} ]P;uQ!
|_"JyGR2
int main (int argc, char *argv[]) >v7fR<(%s
{ 5^<X:1J$
Gtk::Main kit(argc, argv);
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HelloWorld helloworld; 9utiev~3
Gtk::Main::run(helloworld); 4nK\gXz19
} {;4Y5kj
)e(Rf!P{
UbNA|`H
Java 9^6E>S{=
import java.awt.*; QkS~~|0EI>
import java.awt.event.*; &_Z