“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。 + ~V%R{h
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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》。 `oxBIn*BD
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以下是用不同语言写成的Hello World程序的几个例子: >WZ.Dj0n
Ada VzT*^PFBg
with Ada.Text_Io; use Ada.Text_Io; MT{1/A;`)
procedure Hello is D <iG*I
begin ToHx!,tDS
Put_Line ("Hello, world!"); -RP{viGWK
end Hello; aj?ZVa6
]9QXQH
7J9<B5U
汇编语言 C6>_wl]
G? SPz
x86 CPU,DOS,TASM }R*%q
MODEL SMALL l"J#Pvi
IDEAL 9O- otAGM
STACK 100H 8$uq60JK
qjRbsD>
DATASEG (Nzh1ul\}
HW DB 'Hello, world!$' Ic3a\FTr\
^iH[
22b4
CODESEG nk!uO^
MOV AX, @data 6PsT])*>DE
MOV DS, AX pW[TufTa
MOV DX, OFFSET HW %s}{5Qcl/
MOV AH, 09H X!hzpg(`hR
INT 21H gYt=_+-
MOV AX, 4C00H ^qL<=UC.
INT 21H $}4ao2
END _#~D{91
j:
56Lxr{+X
IfH/~EtX
x86 CPU,GNU/Linux,NASM 2H;#L`Z*
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). U2`:'
;Enter this into "hello.asm" then type: :"y2u
;"nasm -f elf hello.asm" hrX/,D -c
;"ld hello.o -o hello" J[}j8x?r
;"./hello" KEy8EB
5Y;&L!T
section .data ;data section declaration hvI#D>Z!Yp
msg db 'Hello World!',0AH 7oC8ID
len equ $-msg ;string length q>+!Ete1p
PC5$TJnj3
section .text ;code section declaration
qbc= kP
global _start ;entry point (start of execution) /{j._4c
_start: mov edx,len ;string length yFm88
mov ecx,msg ;string start 2(uh7#Q
mov ebx,1 ;file handle: stdout ;QVTb3Th
mov eax,4 ;sys_write |QZ
E
int 80h ;kernel system call *QN,wBQ
XnYX@p
mov ebx,0 ;return value /QB;0PrE
mov eax,1 ;sys_exit LmY[{.'tX
int 80h ;kernel system call #)L}{mHLM-
xm=Gt$>.o
# a4OtRiI
x86 CPU,Windows,MASM32 6lpJ+A57#
.386 Ro{xprE1
.model flat,stdcall O\!'Ds+gX
option casemap:none 3K||(
;Include 文件定义 ;pL!cG@
include windows.inc %V1j M
include user32.inc N~b0 b;e
includelib user32.lib {.U:Ce
include kernel32.inc <0Y<9+g!
includelib kernel32.lib .Tl,Ek(
;数据段
D\;5{,:d
.data 7`7 M4
szCaption db 'A MessageBox!',0 %O!xrA{
szText db 'Hello,world!',0 <^$ppwk$
;代码段 %INkuNa8\
.code K/(QR_@?
start: w3VgGc~
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK UFZOu%Y
invoke ExitProcess,NULL e1b?TF@lz
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> $[Ut])4
~
end start %Cj_z
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w)&4i$Lk6
AWK eU)QoVt
BEGIN { print "Hello, world!" } G]$EIf'
6pb~+=3n
R@uA4Al
BASIC v2r|)c,h
传统版BASIC(例如GWBASIC): "Uf1;;b
|bQF.n_
10 PRINT "Hello, world!" M*cF'go
20 END cDYOJu.
;,uATd|
或在提示符输入: p,f$9t4
}%c>Hh
?"Hello, world!":END |Y6;8e`H
MtF^}/0w!`
现代版BASIC(例如Quick BASIC): =[:E
E`xpZ>$mPx
Print "Hello, world!" a*}>yad
qnQ".
以下的语句在Quick BASIC中同样有效: y8C8~ -&OK
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? "Hello,world!" 4*o?2P$Q
IMM+g]#e
@d^DU5ats>
BCPL RO3q!+a$/
GET "LIBHDR" |Vlx:
G{,DoCM5WL
LET START () BE pd`m//G
$( CAx
eJ`Q
WRITES ("Hello, world!*N") r9!s@n
$) 9Nna-}e?W
k{S8q?Gc
d@$bPQQ$,
Befunge Qc!3y>Y=_
"!dlrow olleH">v UqsOG<L'6
, *ZLisq-f
^_@ oa=TlBk<
.v}|Tp&k
br TP}A
Brainfuck o%`=+-K
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< &w`DF,k|
+++++++++++++++.>.+++.------.--------.>+.>. k'
Fu&r
0WKS
lIx./Nf
C sSwY!";
#include <stdio.h> IC8%E3
Dm}M8`|X
int main(void) /d!
{ ^A=tk!C
printf("Hello, world!\n"); XjP;O,x
return 0; %,<Ki]F
} u)r:0;5
SsZSR.tD
z$~F9Es9
C++ \/\w|j
#include <iostream> %K=_
.L;e:cvx
int main() <Uj9~yVN]
{ {J/Fp#
std::cout << "Hello, world!" << std::endl; a]%sks
return 0; /NiD#s0t
} -])=\n!=
|6^%_kO!|
Z^'\()3t
C++/CLI F&7|`o3
int main() gX-hYQrC
{ P,3w
b
System::Console::WriteLine("Hello, world!"); GP %hf{
} |#SZdXg
v2:i'j6
$?k]KD
C# (C Sharp) uPYH3<
class HelloWorldApp < FO=PM
{ 1kUlQ*[<|
public static void Main() UuF(n$B
{ %m[ZU<v
System.Console.WriteLine("Hello, world!"); Z_S{$D
} Suo$wZ7J
} aH@-"Wi
>nih:5J,ja
>}O}~$o
COBOL [2Nux0g
IDENTIFICATION DIVISION. s/C'f4
PROGRAM-ID. HELLO-WORLD. eMFxdtH
Q@NFfJJ
ENVIRONMENT DIVISION. W-&V:S{<
1 0c.#9$
DATA DIVISION. p nI=
)78T+7Kq
PROCEDURE DIVISION. uZJfIC<>
DISPLAY "Hello, world!". g|$;jQ\_
STOP RUN. \M._x"
ybJ wFZ80
NT5'U
Common Lisp t:vBVDkD
(format t "Hello world!~%") Sx e6&
Qs59IZ
gOW8!\V
DOS批处理 pPo xx"y
@echo off cgQ6b.
echo "Hello, world!" Myiv#rQ)
66" 6>
iT,7jd?6#
Eiffel 2E!~RjxSY
class HELLO_WORLD btq4diW
SUUN_w~
creation 3z2
OW@zL$
make ?7LvJ8
feature *x;4::'Jn
make is ^IIy>
local v}V[sIs}
io:BASIC_IO o,*D8[
do uZ-ZZE C
!!io {)!>e
io.put_string("%N Hello, world!") p@4GI[ 4
end -- make "UNFB3
end -- class HELLO_WORLD fPPP|
Z
f\~Cl
]SRpMZ
Erlang *tEqu%N1'
-module(hello). }(ORh2Ri
-export([hello_world/0]). X<[ qX*
6:Z8d%Z
hello_world() -> io:fwrite("Hello, World!\n"). Kob,}NgqZ
x4H#8ZK!
B#SVN Lv
Forth x6s|al
." Hello, world!" CR [{BY$"b#:
Dpw*m.f
`a|&aj0
Fortran !.$L=>:V
WRITE(*,10) /+SLq`'u)
10 FORMAT('Hello, World!') TxP+?1t
STOP <L#d<lx
END }>u `8'2v
+W*~=*h|
y@!o&,,mq
HTML lYQ|NL():
<HTML> qclc--fsE
<HEAD> 'Uf?-t*LT@
<TITLE> Hello World! </TITLE> 6xJffl
</HEAD> \?^2}K/
<BODY> sEdz`F
<p>Hello World!</p> vb6EO[e%I
</BODY> F1L[3D^-
</HTML> c8JW]A`9b)
4Qfsxg
NEri{qxm
HQ9+ E3wL n/<
H M }d:B)cz
M[YFyM(
\BXzmok
INTERCAL +C{-s
PLEASE DO ,1 <- #13 eNAxVF0
DO ,1 SUB #1 <- #238 HN{c)DIm]
DO ,1 SUB #2 <- #112 ~dRstH7u
DO ,1 SUB #3 <- #112 cA
q3Gh
DO ,1 SUB #4 <- #0 SE]5cJ'>
DO ,1 SUB #5 <- #64
4F~^RR"
DO ,1 SUB #6 <- #238 3Hom0g,V4
DO ,1 SUB #7 <- #26 DdgiY9a.
DO ,1 SUB #8 <- #248 6&eXQl
DO ,1 SUB #9 <- #168 #lLUBJ#:
DO ,1 SUB #10 <- #24 /^BC
Qaj
DO ,1 SUB #11 <- #16
=
(F
DO ,1 SUB #12 <- #158 y3dk4s77
DO ,1 SUB #13 <- #52 2L^)k?9>g+
PLEASE READ OUT ,1 w!7\wI[
PLEASE GIVE UP N"ga-u
MCT1ZZpPr
uPA
(1
Java e /JQ #A
public class Hello Iv6 q(c
{ Yv;s3>r
public static void main(String[] args) YZBh}l6t
{ =#b@7Yw:
System.out.println("Hello, world!"); LmF ,en5
} #dA$k+3
} \WCQ>c?~
v~P,OP("c
o|(5Sr&H
JSP %X{EupiFA
<% @Iv;y*y
out.print("Hello, world!"); fe?Z33V
%> RP&bb{Y
l]R0r{{
yLX $SR
MIXAL ATNOb
TERM EQU 19 the MIX console device number 1PkCWRpR
ORIG 1000 start address @^W`Yg)C
START OUT MSG(TERM) output data at address MSG 18>cfDh;N
HLT halt execution
Pd*[i7zhC
MSG ALF "MIXAL" #&&T1;z"#
ALF " HELL" Ma[EgG
ALF "O WOR" m|@H`=`d
ALF "LD " $7S"4rou
END START end of the program k"(]V
9t"Rw ns
5</$dcG
Nuva ):D"LC
<..直接输出..> W lMcEje
Hello, world! kXMp()N8`
Ux[<g%F"
<..或者..> du3f'=q6|
_IYaMo.n
<. %BqaVOKJ"f
// 不带换行 k9^Hmhjw
? "Hello, world!" 0s#72}n
,5}U
H
// 或者 B`5<sW
g`7XE
// 带换行 "F<CGSo
?? 'Hello, world!'
BX,)G HE
.> Aw o)a8e
(yOkf-e2y
1o_kY"D<
OCaml BM%wZ:
s
let main () = h+ f>#O+:
print_endline "Hello world!";; 0B
NLTRv
xt{'Be&Ya+
':'g!b`/
Pascal (q>
TKM
program Hello; bLgH3[{
begin K2x[ApS#
writeln('Hello, world!'); ?Ec9rM\ze
end. c?p^!zG
DDg\oGLp
gV_/t+jI
Perl ]T4/dk&|o^
#!/usr/local/bin/perl 'Ts:.
print "Hello, world!\n"; qS!r<'F3dP
)?L=o0
`zwz
PHP i=8iK#2 h
<?php @=Kq99=\U
print("Hello, world!"); }{aGh I~<
?> h~MV=7
lE
^[L(kHOGzk
;SR ESW
Pike y}Ky<%A!P
#!/usr/local/bin/pike e%4?-{(
int main() TOYK'|lwM
{ z3fv}_\z
write("Hello, world!\n"); DHidI\*gT
return 0; &J[a.:..
} ,b+NhxdZ
Qy,^'fSN
+Q*`kg'
PL/I ^
k^y|\UtZ
Test: procedure options(main); Tt[zSlIMx
declare My_String char(20) varying initialize('Hello, world!'); "}]`64?
put skip list(My_String); WA{igj@\
end Test; T:|/ux3
3P>gDQP
5/48w-fnZ
Prolog ZSMed(//b
goal ^6 6!f 5^W
write("hello,world!"). >%JPgr/
8
tiK?VwaKI
|Td+,>,
Python 4DXbeQs:
#!/usr/local/bin/python CU$khz"
print "Hello, world!" aM^iDJ$>
)oEVafNsT
gU9{~-9}
REXX X@nBj;
say "Hello, world!" 0r]n
0?x
_MBa&XEM
93-Y(Xx)bY
Ruby ~m%[d.
}e
#!/usr/bin/ruby >&L|oq7$
print "Hello, world!\n" V la,avON
IS C.~q2
B.<SC
Scheme ~PQ.l\C
(display "Hello, world!") NGra/s,9|
(newline) ~{c ?-qb
]5W$EvZ9)
lwnO
sed (需要至少一行输入) }ze+ tf
sed -ne '1s/.*/Hello, world!/p' I8*VM3
;'!x
!\]^c
Smalltalk ^<]'?4m]
Transcript show: 'Hello, world!' aCQtE,.
NgNGq\!
Hg+<GML
SNOBOL b`0tfXzS5
OUTPUT = "Hello, world!" c?::l+
END , ,3lH-C
:WhJDx`j
:,BAw ,
SQL 4Z)4WGp!
create table MESSAGE (TEXT char(15)); &|SWy
2N
insert into MESSAGE (TEXT) values ('Hello, world!'); *0WVrM06?
select TEXT from MESSAGE; +vc +9E.?9
drop table MESSAGE; Xj?Wvt
LS@TTiN
uf(ayDE
Tcl hW7u#PY
#!/usr/local/bin/tcl ~z[`G#dU
puts "Hello, world!" /iW+<@Mas
8&QST!JGSX
=4ygbk
TScript T+8Yd(:hX
? "Hello, world!" 1-RY5R}VR
G
hM
tZxx#v`
Turing -oD,F
$Rb
put "Hello, world!" Bz+oMN#XJ
+sNS
QE<Z@/V*a
UNIX-style shell OqGp|`
程序中的/bin/sh可改为您使用的shell (qcFGM22U
$C16}^
#!/bin/sh OT#@\/>
echo 'Hello, world!' m l`xLZN>L
E4#{&sRT
\0@DOW22C
GUI =g% L$b<i
b3NIFKw
Delphi x/QqG1q
program HelloWorld; s|YH_1r
uses h yrPu_
Dialogs; +]l?JKV
begin uJ`N'`Z
ShowMessage('Hello, World!'); M-WSdG[AJ
end. ulR yt^bx|
SH*'<
^Z (cVg
Nuva /E>;O47a
<. f5}afPk
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) ;H$Cq'
I
.>
D2e-b
yoE-a
goM;Pf
"<
Visual Basic (6%T~|a
MsgBox "Hello, world!" l;$F[/3a
'或者 =^"Sx??V
Print "Hello, world!" :kZ]Swi 5
tpI/Ibq
hvt]VC]]
Visual FoxPro \e
a*
? "Hello, world!" s/1r{;q
88Pt"[{1
6:_~-xG
X11 3mgvWR
用一个程序 k-$Acv(
_z_YJ7A>
xmessage 'Hello, world!' `&;#A*C0
^!['\
用C++和gtkmm 2 !D22HSv(w
l|g*E.:4
#include <iostream> '!>9j,BJ
#include <gtkmm/main.h> <I,4Kc!
#include <gtkmm/button.h> %Tp9GGt
#include <gtkmm/window.h> nC:T0OJv
using namespace std; OPvPP>0*8
@`.4"*@M
class HelloWorld : public Gtk::Window 0+&WIs
{ T*p7[}#
public: ,7nu;fOT[
HelloWorld(); }0~$^J
virtual ~HelloWorld(); ? [Yn<|
protected: %6ckau1_;
Gtk::Button m_button; HB9"T5Pd*
virtual void on_button_clicked(); <XL%*
}; GTs,?t16/
G>~/
HelloWorld::HelloWorld() : m_button("Hello, world!") }#zL)+XI
{ '{`KYKLP+
set_border_width(10); Fd8nR9A
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); h(WlJCln
add(m_button); 2e6P?pX~2
m_button.show(); _0[z
xOI
} ;v8TT}R
~HY)$Yp;
HelloWorld::~HelloWorld() {} i7RK*{
/{R
^J#
void HelloWorld::on_button_clicked() ;apLMMsWC
{ c[J 2;"SP
cout << "Hello, world!" << endl; Vc\g"1x
} Q_T,=y
l(Y32]Z
int main (int argc, char *argv[]) Ioe.[&o6B
{ ~U+<JC Z
Gtk::Main kit(argc, argv); kr$)nf
HelloWorld helloworld; hLfWDf*T|
Gtk::Main::run(helloworld); R14&V1 tZ
} b$w66q8
7L+Wj }m
2?(/$F9X,
Java M_O$]^I3w
import java.awt.*; C,;?`3bH@
import java.awt.event.*; NO/$}vw
v~RxtTu
public class HelloFrame extends Frame zt2#K
{ 8V(~u^!%_
HelloFrame(String title) hW~% :v
{ VI3fvGHat{
super(title); Sw$&E
} 5I* 1CIO
public void paint(Graphics g) DKo6lP`
{ 0gyvRM@ x[
super.paint(g); kFJ]F |^7
java.awt.Insets ins = this.getInsets(); 4Zjd g`
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); 4PC'7V=S
} [:,|g;=Y}
public static void main(String args []) "=s dn
{ HJr*\%D}1
HelloFrame fr = new HelloFrame("Hello"); :wzbD,/M
`zs@W
fr.addWindowListener( E.'6p \
new WindowAdapter() ;8F6a:\v
{ h1)+QLI
public void windowClosing(WindowEvent e) r?`nc6$0|
{ lYS4Q`z$
System.exit( 0 ); 4&]NC2I
} \#h=pz+jb
} w6 Y+Y;,'f
); 9<Zm}PE32
fr.setResizable(true); R^E-9S\@
fr.setSize(500, 100); ?`*`A9@
fr.setVisible(true); _#<l -R`
} v@X[0J_8
} G4F~V't
{ F0"U=
Yk4ah$}%-^
Java Applet 8BIPEY -I?
Java Applet用于HTML文件。 c1]\.s
?s 0")R&
HTML代码: d{^K8T3
m[5ed1+
<HTML> u<@
55k
<HEAD> oRn 5blj
<TITLE>Hello World</TITLE> wZ8LY;
</HEAD> KueI*\ p
<BODY> ht)KS9Xu
)o_$AbPt
HelloWorld Program says: RML'C:1
avv/mEf-f
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> g.EKdvY"%H
</APPLET> RG_)<U/B
c_2kHT
</BODY> iu,Bmf^oD
</HTML> 64!V8&Ay
XG6UV('
Java代码: *!(?=9[
#`Et{6WS
import java.applet.*; pQxi0/d p
import java.awt.*; M7lMOG(\
-Kf'02
public class HelloWorld extends Applet z3}4+~~
{ Y6@A@VJ
public void paint(Graphics g) &-Zg0T&tZ
{ $VJ=A<
g.drawString("Hello, world!", 100, 50); K>$od^f%c
} KK*"s^L
} WxLILh
V/!8q`lYNJ
&"svt2
java script h:+>=~\
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。 ZjJEjw
T+/Gz'
<script language="java script"> 2\!.w^7'^T
function helloWorld() BPKeG0F7
{ U`"nX)$
alert("Hello World"); ,Gd8 <