“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。 072`i46
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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》。 nyd'79~>G
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以下是用不同语言写成的Hello World程序的几个例子: DTx>^<Tk
Ada lN::veD
with Ada.Text_Io; use Ada.Text_Io; 8DlRD$_:&
procedure Hello is N5fMMi(O
begin 0OVxx>p/x
Put_Line ("Hello, world!"); s.@DI|Gnf
end Hello; *IC9))PGJ
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eZRu{`AF*
汇编语言 p\,PY
Ob7F39):N
x86 CPU,DOS,TASM [Q20c<,
MODEL SMALL :U#4H;kk~j
IDEAL EXbhyg
STACK 100H +p)kemJ~
lV<j?I~?Q
DATASEG +Tp>3Jh2
HW DB 'Hello, world!$' >1d`G%KfG
I =yy
I
CODESEG B976{;QvXV
MOV AX, @data (K->5rSU
MOV DS, AX &r!*Y&
MOV DX, OFFSET HW @{UtS2L
MOV AH, 09H ^T/d34A;SP
INT 21H UPJ3YpK
MOV AX, 4C00H Ja#ti y
INT 21H 9mH/xP:y
END n8>(m,
skn];%[v\
$[8GFv
x86 CPU,GNU/Linux,NASM gS4@3BOw&.
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). V@Fj!/
;Enter this into "hello.asm" then type: ;3WVrYe
;"nasm -f elf hello.asm" JN-wToOF
;"ld hello.o -o hello" yGtGhP8
;"./hello" 2_lb+@[W
r5N.Qt8
section .data ;data section declaration P mgTTI
msg db 'Hello World!',0AH 3]1uDgfr
len equ $-msg ;string length BliL1"".
|/-H:\5
section .text ;code section declaration %$L!N-U6
global _start ;entry point (start of execution) ^X/[x]UOT@
_start: mov edx,len ;string length 8(c,b
mov ecx,msg ;string start 'm,3znX!c
mov ebx,1 ;file handle: stdout _+hf.[""
mov eax,4 ;sys_write !B &%!06
int 80h ;kernel system call *^q%b/ f
z tLP {q#
mov ebx,0 ;return value 2pEr
s|r
mov eax,1 ;sys_exit w8df-]r
int 80h ;kernel system call &k4)&LQJ
+ 5:oW~
;
!yQ# E2/A
x86 CPU,Windows,MASM32 0"_FQv
.386 Eh&et0&=g
.model flat,stdcall o%E^41M7E
option casemap:none q'%-8t
;Include 文件定义 H_<X\(
include windows.inc z\fmwI
include user32.inc ah\yw
includelib user32.lib X>`e(1`_O
include kernel32.inc \,i?WgWv
includelib kernel32.lib b]Xc5Dp{
;数据段 1\_S1ZS
.data pLvvv#Y
szCaption db 'A MessageBox!',0 JC6Bs`=s~
szText db 'Hello,world!',0 VYb6#sl
;代码段 GDgq
4vfj
.code Bu\:+3 )
start: %\5d?;
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK z+>FKAF
invoke ExitProcess,NULL cZ{-h
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> SW
^F
end start gxS*rzCG
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vnT'.cBB:^
AWK i1"4ztZ
BEGIN { print "Hello, world!" } _%` )cOr
t<Iy`r71
QN!$4 1A?{
BASIC Ov$_Phm:
传统版BASIC(例如GWBASIC): fZQC'Z>EX
>8$]g
10 PRINT "Hello, world!" -hx' T6G%
20 END Gf(|?"
H
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或在提示符输入: &QaFX,N"
Bw]Y71
?"Hello, world!":END OaeGukhX&
{G:dhi
现代版BASIC(例如Quick BASIC): bT^6AtsJ
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Print "Hello, world!" k?%?EsR
2UPqn#.3
以下的语句在Quick BASIC中同样有效: nU{}R"|
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? "Hello,world!" g]sc)4
j:)"s_
HzcI2
P`|
BCPL z?NMQ8l|:6
GET "LIBHDR" S${n:e0\
O_yk<
LET START () BE a^U)2{A*f
$( >}& :y{z~
WRITES ("Hello, world!*N") Z2HH&3HA
$) [8F1rZ&
A4lW8&rHI
@WmEcX|
Befunge }Zs
y&K
"!dlrow olleH">v %r1NRg8
, ak:Y<}
^_@ F/91Es
Fj?gXc5{
,4O|{Iu#n
Brainfuck #le1
^
<w7
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 4<j)1i=A
+++++++++++++++.>.+++.------.--------.>+.>. 2pKkg>/S
n};:*N!
v
=;hz,+
C
9/?@2
#include <stdio.h> P2U^%_~
%25GplMT
int main(void) xL-]gwq
{ _6y#?8RMB
printf("Hello, world!\n"); FTVV+9.l:
return 0; V7+fNr]I
} iJ&*H)}^
})v`` +
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C++ T?4pV#
#include <iostream> v[++"=<
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"s$$M\)T
int main() K~1uR:DR
{ ';>]7oT`
std::cout << "Hello, world!" << std::endl;
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return 0; ,QB]y|:
} `>i8$q%
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aEL^N0\d
C++/CLI ^x BQ#p
int main() +D3w2C
{ ^k*h
System::Console::WriteLine("Hello, world!"); F,[GdE;P
} *VuiEBG
?RP&XrD
})V^t3
C# (C Sharp)
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class HelloWorldApp Oq`CK f
{ IonphTcU!
public static void Main() rpB0?h!$
{ wr) \GJ#>
System.Console.WriteLine("Hello, world!"); L?Fb}
} prk@uYCa =
} >bLhCgF:"
QC,LHt?6
'{ $7Dbo
COBOL j;7:aM"BQW
IDENTIFICATION DIVISION. 'vP"&lrn
PROGRAM-ID. HELLO-WORLD. }!`_Bz:
k#oe:u`<
ENVIRONMENT DIVISION. Jyz*W!kI
x+Ws lN2a
DATA DIVISION. P9W!xvV`w
Q?g#?z&Pu\
PROCEDURE DIVISION. "Dt:
8Nf^
DISPLAY "Hello, world!". pXhN? joe
STOP RUN. aA6m5
Ux!q(9<_
>7$h
Common Lisp L!c.1Rf_
(format t "Hello world!~%") ~_]i'ii8
M669G;w(K
f;`7}7C
DOS批处理 sqv!,@*q
@echo off <9/?+)
echo "Hello, world!" U>-GM>
W[G5+*i
J?$`Tnx^
Eiffel i6FviZx
class HELLO_WORLD ev[!:*6P
Jwtt&" c0.
creation ?X'l&k>
make Njmb{L]Cps
feature +Y_]<
make is <ht^Ck
local 9}|t`V"
io:BASIC_IO .P(Ax:g
do [KW9J}]
!!io +'"NKZ.>TT
io.put_string("%N Hello, world!") [NU@A >H
end -- make jV.9d@EC
end -- class HELLO_WORLD ,ieew`
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l,k.Jo5
Erlang !E~czC\p6
-module(hello). y6P-:f/&*
-export([hello_world/0]). 3|
F\a|N
tpn.\z%
hello_world() -> io:fwrite("Hello, World!\n"). [l*;+N+
xxZO{_q
G\B:iyKl
Forth ?2<V./2F
." Hello, world!" CR i{7Vh0n3S-
+EvY-mwfQ
THcX.%ToT
Fortran +(m*??TAV
WRITE(*,10)
:+v4,=fHy
10 FORMAT('Hello, World!') R,8460e7
STOP #^9a[ZLj0
END >/9Qgyc0
=GL^tAUJ
/&o<kY
HTML T1A/>\Ns
<HTML> gCZm7dgo
<HEAD> bb!cZ>Z
<TITLE> Hello World! </TITLE> )E}eK-Yu
</HEAD> | W<jN
<BODY> 1v'|%B;O
<p>Hello World!</p> cdv0:+[P
</BODY> 7xfN}iHG
</HTML> n7,LfO#
wT&P].5n
Wo,fHY
HQ9+ xeKfc}:&z
H <(x!P=NM-
"[2D&\$
tREC)+*\
INTERCAL Ht7v+lY90^
PLEASE DO ,1 <- #13 uE&2M>2
DO ,1 SUB #1 <- #238 )'e9(4[V1
DO ,1 SUB #2 <- #112 gacE?bW'
DO ,1 SUB #3 <- #112 N3|aNQ=X0
DO ,1 SUB #4 <- #0 wbbr8WiU
DO ,1 SUB #5 <- #64 'ExTnv ~
DO ,1 SUB #6 <- #238 #QKgY7
DO ,1 SUB #7 <- #26 l/6(V:
DO ,1 SUB #8 <- #248 Yp6%
@c6\
DO ,1 SUB #9 <- #168 iYl{V']A
DO ,1 SUB #10 <- #24 M6*8}\
DO ,1 SUB #11 <- #16 >5bd!b,
DO ,1 SUB #12 <- #158 skBzwVW I
DO ,1 SUB #13 <- #52 b-)3MR:4
PLEASE READ OUT ,1 9I*i/fa
PLEASE GIVE UP -"w&g0Z
XO"BEj<x
6a*OQ{8
Java ^A;(#5A]7
public class Hello LO;Z3Q>#0
{ )Ga 3Ji}'
public static void main(String[] args) V>B*_J,z.
{ 'sN
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System.out.println("Hello, world!"); zK ir
} \
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} tzSg`7H!
FW!1 0K?
"jAEZ
JSP
u9,ZY>
<% 5wGc"JHm
out.print("Hello, world!"); tC'@yX
%> D3kx&AR
`|g*T~;
kC
]x`I@vSf7R
MIXAL sp&)1?!M
TERM EQU 19 the MIX console device number t 4tXLI;'
ORIG 1000 start address *XSHzoT*
START OUT MSG(TERM) output data at address MSG ^f bw0
HLT halt execution 1F58 2 l
MSG ALF "MIXAL" cb9q0sdf
ALF " HELL" AHtLkfr(r
ALF "O WOR" 'CC;=@J
ALF "LD " } l4d/I
END START end of the program F!qt#Sw!\
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$ h<l
Nuva mtu`m6Xix
<..直接输出..> UkV{4*E
Hello, world! 9t^Q_ [hG
nolLeRE1
<..或者..> iPoDesp
;*_U)th
<. 3~Vo]wv
// 不带换行 +:fr(s!OE
? "Hello, world!" STH?X]
/
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// 或者 e.:S BXZ
<!M ab}
// 带换行 B)cVbjTn
?? 'Hello, world!' $VLCD
.> fooQqWC)
yhi6RDS
+8etCx
OCaml 9e:}qO5)
let main () = 'WW['
print_endline "Hello world!";; {_i.IPp~
umD[4aP~;
zxt&oT0Q
Pascal |p1pa4%}
program Hello; [rt+KA
begin v<qiu>sbz}
writeln('Hello, world!'); >nL9%W}8M
end. VD*xhuy$k
z
a^s%^:yK
I3ZbHb-)_,
Perl 5wws8w
#!/usr/local/bin/perl ]JXpe]B
print "Hello, world!\n"; ]%K 8
"?~u*5
K{)YnY_E;
PHP 8I'Am"bc\
<?php %hu] =
print("Hello, world!"); )@]Y1r4U
?> )!!xvyc
= yH#Iil
aDik1Q
Pike p<@0b
#!/usr/local/bin/pike :%?\Wj5HW
int main() !%x=o&
{ fJ?$Z|
write("Hello, world!\n"); J6H3X;vxQw
return 0; >qSaF
} }Dig'vpMx
VvO/
A~!3svJW
PL/I
jJjD)
Test: procedure options(main); hupYiI~
declare My_String char(20) varying initialize('Hello, world!'); # Z*nc0C
put skip list(My_String); %`c?cB
end Test; S|8O$9{x9q
i8`&XGEd
~?pF'3q
Prolog K%: :
goal (BgO<
write("hello,world!"). z90=,wd
Ah2%LXdHA
/#PEEN
Python &\\iD :J
#!/usr/local/bin/python <mc[-To
print "Hello, world!" -4p^wNR
6N4/p=lE
7/;Xt&
REXX `'u|4pRFs
say "Hello, world!" N~-N Q
13]sZ([B%|
W39R)sra
Ruby _|MY/SN4A
#!/usr/bin/ruby z,nRw/o
print "Hello, world!\n" <R:KR(bT
f 8E
S
GU
@|&P#wd.u
Scheme 3<x_[0v`K1
(display "Hello, world!") 7
:s6W%W1*
(newline) vm+EzmO,!
g eaeOERc
c@{,&,vsj
sed (需要至少一行输入) %ma1LN[
sed -ne '1s/.*/Hello, world!/p' nMcd(&`N
#jV6w=I
\Z^K=K(|
Smalltalk 5:f}bW*
Transcript show: 'Hello, world!' C,Je >G
Q]7Q4U
|pr~Ohz
SNOBOL H7)(<6b,z
OUTPUT = "Hello, world!" LiJ;A*
END il-v>GJU7{
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7,|-%!p[
SQL yPm)r2Ck
create table MESSAGE (TEXT char(15)); 4;|&}Ij
insert into MESSAGE (TEXT) values ('Hello, world!'); _y`'T;~OY
select TEXT from MESSAGE; udg;jR-^
drop table MESSAGE; ^zqz$G#
p`{9kH1m e
z@VY s
Tcl lXm]1
*<
#!/usr/local/bin/tcl ~@R=]l"
puts "Hello, world!" a +*|P
yA(H=L-=!1
H5/%"1Q
TScript $|z8WCJ
? "Hello, world!" >'Nrvy%&0
<H)h+?&~d
P 2;j>=W
Turing ~z>2`^Z"
put "Hello, world!" fYx$3a.
!e.@Xk.P6
;wDcYs
UNIX-style shell
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程序中的/bin/sh可改为您使用的shell 'fcJ]%-=
~mK9S^[
#!/bin/sh V}7I?
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echo 'Hello, world!' EEn}Gw
ctdV4%^{
^b;.zhp8;N
GUI O|%><I?I
sqac>v
Delphi |;{wy
program HelloWorld; 4<Bj;1*4
uses sEe^:aSN
Dialogs; 2}I1z_dq~
begin v8
ggPI
ShowMessage('Hello, World!'); wC <!,tB(8
end. Q?7UiTZ
)"A+T&
6/s#'#jh
Nuva \|DcWH1
<. aQ]C`9k
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) rt!5Tl+v
.> *'PG@S
Q>JJI:uC4
ph%/;?wY
Visual Basic '`\\O:@C`
MsgBox "Hello, world!" vy1:>N?#5
'或者 GvF~h0wMt
Print "Hello, world!" J03yFT,dF
ga6M8eOI
0z_e3H{P27
Visual FoxPro Y%|f<C)lx2
? "Hello, world!" vDv:3qN7(
C:l
/%
\@GA;~x.b
X11 9'\18_w
用一个程序 ZnI_<iFR*
^yu0Veypy
xmessage 'Hello, world!' l`~*"4|/
\;.\g6zX
用C++和gtkmm 2 ,g6w2y7 ]
^6Hfq^ejt
#include <iostream> E
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#include <gtkmm/main.h> +i4S^B/8i
#include <gtkmm/button.h> a~9U{)@F
#include <gtkmm/window.h> lBgf' b3$
using namespace std; Zh6bUxr
+I;b,p
class HelloWorld : public Gtk::Window SLD%8:Zn
{ liA)|.H
public: (w-z~#<
HelloWorld(); )d2 <;c
virtual ~HelloWorld(); U_wn/wcLS
protected: q+>{@tP9
Gtk::Button m_button; 1*Yf[;L
virtual void on_button_clicked(); :0Rd )*k,v
}; -*_D!
R/Mwq#xUb
HelloWorld::HelloWorld() : m_button("Hello, world!") g>1yQ
{ #Ne<=ayS
set_border_width(10); \rF6"24t6
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); zy"L%i
add(m_button); \|F4@
m_button.show(); <IC=x(T
} `{gkL-
+%OINMo.A
HelloWorld::~HelloWorld() {} 9gZMfP
C\ZL*,%}
void HelloWorld::on_button_clicked() &BY%<h0c
{ (CJiCtAsl`
cout << "Hello, world!" << endl; r`qMif'
} 9TIyY`2!
mSp-
int main (int argc, char *argv[]) j 6%X
{ ug'I:#@2
Gtk::Main kit(argc, argv); WS/^WxRY
HelloWorld helloworld; CC0@RU
Gtk::Main::run(helloworld); gPSUxE`O.
} IL 'i7p
%0fF_OU
u_;*Ay
Java :9Zu&t
import java.awt.*; F[<EXLQ
import java.awt.event.*; iS&~oj_-%
>@KQ )p' `
public class HelloFrame extends Frame L$=@j_V2
{ K{.s{;#
HelloFrame(String title) }S<2({GI
{ es]\xw
super(title); l TY%,s
} KE1S5Mck>
public void paint(Graphics g) ~=h]r/b< U
{ xphw0Es
super.paint(g); #~3x^4Y
java.awt.Insets ins = this.getInsets(); J~eY,n.6]
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); I+Qv $#S/
} IMIZ#/
public static void main(String args []) t
j&+HC
{ R $HIJM
HelloFrame fr = new HelloFrame("Hello"); ?v-IN
L+LxS|S+M
fr.addWindowListener( Rp4EB:*
new WindowAdapter() %Fig`qX
{ mr6/d1af_
public void windowClosing(WindowEvent e) 5 WSu
{ jIv%?8+%
System.exit( 0 ); YLmzMD>
} 9r-]@6;
} s
`HSTq2
); `*cT79
fr.setResizable(true); 1|bu0d\]
fr.setSize(500, 100); sfNXIEr^
fr.setVisible(true); h>-JXuN
} fZL%H0&
} vZj^&/F$=g
qIcQPJn!}
O( G|fs
Java Applet [/hS5TG|7
Java Applet用于HTML文件。 Nr=ud QA{
?jbE3fW
HTML代码: RmxgCe(2a
=A={Dpv[>
<HTML> :_JZn`Cab
<HEAD> jLX{$,
<TITLE>Hello World</TITLE> f I>>w)5
</HEAD> s|Ls
<BODY> =Xh^@OR
C=(-oI n
HelloWorld Program says: zqfv|3-!}
*')BP;|V`
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> Y,RED5]t
</APPLET> .w/#S-at
>Z?fX
</BODY> Cbm
</HTML> vl*CU"4
`fh^[Q|4n0
Java代码: _=E))Kp{z
1MHP#X;|
import java.applet.*; NLFs)6\
import java.awt.*; 4*MjDb
Dww]D|M
public class HelloWorld extends Applet 1}#v<b$
{ ?g%5 d
public void paint(Graphics g) <h|XB}s+
{ Jfa=#`
g.drawString("Hello, world!", 100, 50); `bu3S}m7
} )#k*K9[@
} r)Ts(#Z
L0uvRge
<q
hNX$t
java script Z
l.}=
java script是一种用于HTML文件的脚本语言。要查看以下程序的运行结果,只要将其复制到任何HTML文本即可。 5,`U3na,
v{`Z
<script language="java script"> (UDF^
function helloWorld() mj5$ 2J
{ H|;6K`O_
alert("Hello World"); `GOxFDB.
}
hh<5?1
</script> ^_6%dKLK
R9&T0Q