“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-)eT
ZjEO$ts=@
将Hello World程序作为第一个学写的程序,现在已经成为一种传统。该程序最早出现在由Brian Kernighan和Dennis Ritchie写的计算机程序设计教程《C语言程序设计》。 Em@h5V
K.R2)o`
以下是用不同语言写成的Hello World程序的几个例子: }FMl4 _}u
Ada IO xj$ ?%l
with Ada.Text_Io; use Ada.Text_Io; -&kQlr
procedure Hello is KF'H|)!K
begin *4qsM,t
Put_Line ("Hello, world!"); -H`G6oMOO
end Hello; R\:C|/6f
[ylGNuy
VSZ 6;&2^
汇编语言 RQ{w`>K
S/d})8~.
x86 CPU,DOS,TASM Xt=&
MODEL SMALL ["Q8`vV0WO
IDEAL J5Fg]O*
STACK 100H ^l^_ K)tw*
#s#z@F
DATASEG 2,&lGyV#
HW DB 'Hello, world!$' dY\"'LtF
&F'v_9
CODESEG d=qpTb;(
MOV AX, @data yK?~XV:
MOV DS, AX o Ayk
MOV DX, OFFSET HW Op)0D:BmR
MOV AH, 09H u."fJ2}l0X
INT 21H R~w(]
MOV AX, 4C00H [l#WS
INT 21H aG}9Z8D
END Pz|qy,
;6b#I$-J-
@gi
Y
x86 CPU,GNU/Linux,NASM a
LmVOL{
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ?3}UO:B
;Enter this into "hello.asm" then type: Xe+&/J5b
;"nasm -f elf hello.asm" d;<n [)@
;"ld hello.o -o hello" G<jpJ
;"./hello" U-FA^c;
6@XutciK
section .data ;data section declaration pXFNK"jm
msg db 'Hello World!',0AH @L<[38
len equ $-msg ;string length DQlaSk4hF_
b7AuKY{L
section .text ;code section declaration HnP;1Gi
global _start ;entry point (start of execution) oLr"8R\d>t
_start: mov edx,len ;string length !W%HAlUAG[
mov ecx,msg ;string start 4(aesZ8h
mov ebx,1 ;file handle: stdout 7-o=E=
mov eax,4 ;sys_write \aZ(@eF@@Q
int 80h ;kernel system call U[A*A^$c}
Ab2g),;c
mov ebx,0 ;return value CY>NU
mov eax,1 ;sys_exit l(]\[}.5
int 80h ;kernel system call 5&X
Ve8!
[QZ~~(R
x86 CPU,Windows,MASM32 z t,-O7I'1
.386 %o"Rcw|
.model flat,stdcall 9uS7G *
option casemap:none gs8L/veP
;Include 文件定义 Ox~'w0c,f
include windows.inc Tc88U8Gc
include user32.inc <,E*,&0W
includelib user32.lib 99ha/t
include kernel32.inc 0X0D8H(7Q
includelib kernel32.lib ;n;^f&;sJ
;数据段 s3+O=5
.data d(@A
szCaption db 'A MessageBox!',0 m@O\Bi}=}
szText db 'Hello,world!',0 9>i6oF]Oq
;代码段 L\Jl'r|
.code Pm1
"
0
start: <Y#R]gf1
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK !GIsmqVY
invoke ExitProcess,NULL HQ
s)T
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Z@[,"{Sn
end start __ mtZ{
!%u#J:z2
9#iDrZW
AWK 5dgBSL$A}]
BEGIN { print "Hello, world!" } 4]B3C\
v
^mum5j
R$fna[Xw@/
BASIC *2AQ'%U~
传统版BASIC(例如GWBASIC): R82Y&s;
y:A0!75
10 PRINT "Hello, world!" fjWh}w8
20 END gNqV>p
2YN`:"
或在提示符输入: '.K,EM!-~h
KvD$`"L/CT
?"Hello, world!":END {cv;S2
_#gsR"FZ$
现代版BASIC(例如Quick BASIC): bY2Mw8e%
lXPn]iLJ
Print "Hello, world!" 4 P;O8KA5y
U2AGH2emw
以下的语句在Quick BASIC中同样有效: vLS9V/o
kW!:bh
? "Hello,world!" =P#!>*\ar
*(`.h\+
%f-<ol
BCPL $dnHUBB
GET "LIBHDR" &!a2%%1#N
)j6>b-H
LET START () BE 5HbTgNI
$( h]Oplp4\W
WRITES ("Hello, world!*N") Qwa"AY5pW
$) ?8, N4T0)
@
RI^wZ-;
'sF563kE
Befunge d>`(.qvxR
"!dlrow olleH">v "<2bjy
, *i{.@RX?
^_@ O<h#|g1
`az`?`i7
cA%U
Brainfuck Zd(d]M_x
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 7:L~n(QpP
+++++++++++++++.>.+++.------.--------.>+.>. 668bJ.M\O
U(N$6{i_
M([H\^\:
C "r
V4[MVxt
#include <stdio.h> 0w['jh|,
E)hinH
int main(void) +=h!?<*C8
{ >Y'yM4e*
printf("Hello, world!\n"); jp^WsHI3
return 0; FqsjuU@l
} J3x7i8
%'T>kz *A
@L!#i*> 9
C++ W[>Tq T63
#include <iostream> JYr7;n'!
}AiS83B
int main() ]2%P``Yj
{ \r%Vgne-g
std::cout << "Hello, world!" << std::endl; VQ?H:1R
return 0; (<C%5xk
} (A'q@-XQ
|<|,RI?
V3W85_*
C++/CLI <u?hdwW\
int main() \.1b\\
{ Gr@{p"./z
System::Console::WriteLine("Hello, world!"); N`Xnoehu
} )Zf}V0!?+
N#)VD\m
G`#gV"PlC
C# (C Sharp) :3>yr5a7-
class HelloWorldApp L[G\+
{ j& o+KV
public static void Main() tN3 {7'\7
{ wmr%h q
System.Console.WriteLine("Hello, world!"); HCIF9{o1j>
} -fx88
} O|&TL9:
U9o*6`"o
Hs}"A,V
COBOL ]A]E)*
IDENTIFICATION DIVISION. 8Qz7uPq
PROGRAM-ID. HELLO-WORLD. RpK,ixbtA+
2Ml2Ue-9
ENVIRONMENT DIVISION. z83:a)U
`VFl|o#H
DATA DIVISION. ZU.)K>'
iB3+KR
PROCEDURE DIVISION. f5b`gvCY,#
DISPLAY "Hello, world!". %H}Y]D~R
STOP RUN. Mto~ /
!$xEX,vj|W
`/JR}g{O
Common Lisp wwcwYPeg
(format t "Hello world!~%") b#;N!VX
\Tf{ui
UeQ9G
DOS批处理 v~2XGm
@echo off Df,VV+
echo "Hello, world!" q AVfbcb
.(dmuV9
/9+A97{
Eiffel Bb[0\Hs7
class HELLO_WORLD lcT+$4zk.
:$cSQ(q9a
creation a H|OA\<
make K@sP~('
feature _{`'{u
make is )]b@eGNGj
local K# i*9sM
io:BASIC_IO )~blx+ \y
do
):fu
!!io {.D2ON
io.put_string("%N Hello, world!") 0"<;You
end -- make %c&Ah
end -- class HELLO_WORLD )|h;J4V
aH PSnB&
"p~]m~g
Erlang Z:Y.":[
Qi
-module(hello). h
GA0F9.U
-export([hello_world/0]). &8_f'+i0
9 /Ai(
hello_world() -> io:fwrite("Hello, World!\n"). C|d!'"p
(_&V9vat=
K?Xo3W%K
Forth 1[/$ZYk:
." Hello, world!" CR K]pKe"M
P$6f +{
:YJ7J4
Fortran R#7+
WRITE(*,10) &X]=Qpl
10 FORMAT('Hello, World!') ,4>WLJDo
STOP BtpjQNN
END x:n9dm
TCKI
&v
auLp
HTML >.O*gv/_
<HTML> A D}}>v
<HEAD> 22Y!u00D
<TITLE> Hello World! </TITLE> %j[LRY/
</HEAD> YKw!pu=
<BODY> ZLN_,/7
<p>Hello World!</p> %is,t<G
</BODY> ny
</HTML> 3dX=xuQ%/
o9T@uWh+
cdJ`Gk
HQ9+ S1az3VJI\
H 8MeO U
.i3lG(
YG
x^#6>oOR
INTERCAL (w#slTFT
PLEASE DO ,1 <- #13 dp
UdFuU"
DO ,1 SUB #1 <- #238 LA;V}%y?
DO ,1 SUB #2 <- #112 Xv-1PY':pA
DO ,1 SUB #3 <- #112 UE&C
DO ,1 SUB #4 <- #0 v`_i1h9p{
DO ,1 SUB #5 <- #64 .e FOfV)
DO ,1 SUB #6 <- #238 JhhUg
DO ,1 SUB #7 <- #26 YM`:L
DO ,1 SUB #8 <- #248 #GY&$8.u*
DO ,1 SUB #9 <- #168 ezg^5o;
DO ,1 SUB #10 <- #24 p'Y&Z?8
DO ,1 SUB #11 <- #16 X #p o|,Q
DO ,1 SUB #12 <- #158 G>[
NZE
DO ,1 SUB #13 <- #52 qr'x0r|<>
PLEASE READ OUT ,1 re ]Ste
PLEASE GIVE UP _d\u!giy
C"U[ b%
;*wT,2;
Java <*A|pns
public class Hello n?ZL"!$
{ :tjgg]
public static void main(String[] args) 409x!d~it
{ _UH/}!nqB
System.out.println("Hello, world!");
d-ag
} un$ Z7W/
} +(=0CA0GE
Qc&-\kQ:$u
SLQ\Y%F
JSP Q3NPwM
<% wr3_Bf3]
out.print("Hello, world!"); &O+sK4P
%> f!M[awj%
h V|v6 _
Z^'?|qFj!
MIXAL &J lpA<^s;
TERM EQU 19 the MIX console device number J8GXI :y
ORIG 1000 start address P7'oXtW{o
START OUT MSG(TERM) output data at address MSG KrdZEi vb
HLT halt execution
}@rg5$W
MSG ALF "MIXAL" 9S:{
ALF " HELL" dN]Zs9]
ALF "O WOR" inr%XS/m
ALF "LD " (C-,ljY
END START end of the program 4T-,'P{?
KMxNH,5
2~G,Ia
Nuva J{Y6fHFi
<..直接输出..> IgPV#
Hello, world! ^eTDD
T:K"
<..或者..> #D|!
.I)
Z/89&Uy`h
<. lj
"Z
// 不带换行 >\|kJ?h
? "Hello, world!" YVQ_tCC_!
<mv7HKVg
// 或者 #dva0%-1
/<3;0~#){
// 带换行 |eH wp
?? 'Hello, world!' g9yaNelDh)
.>
Veb+^&
Lv
`#zgo_f
?1GY%-
OCaml ^lHb&\X
let main () = 'GEBxNH:
print_endline "Hello world!";; ;;EDN45
9">zdFC'
fOa6,
Pascal kZV^F*7
program Hello; 'i@,~[Z4
begin zW*}`S"
writeln('Hello, world!'); +R|U4`12
end. k1ipvKxp:8
{Oy9RESqc
JP{UgcaF
Perl 5SoZ$,a<e
#!/usr/local/bin/perl NoFs-GGGh
print "Hello, world!\n"; SQq6X63 \
1^Kj8*O8e
Yw6DJY
PHP [<]Y+33
<?php
Uby,Tu
print("Hello, world!"); a{<p'_
?> >Y7r\
ybo#K
6-mmi7IfO
Pike DRH'A!r!
#!/usr/local/bin/pike )>(L{y|uYX
int main() gKmX^A5<
{ -Qg
2qN2{
write("Hello, world!\n"); |0tg:\.
return 0; ./5jx2V
} 7m@
)Lv
Ihdu1]~R{
Gs+\D0o!
PL/I E|pk.
Test: procedure options(main); VLf
g[*k
declare My_String char(20) varying initialize('Hello, world!'); Q Oz9\,C
put skip list(My_String); 6exRS]BI
end Test; M,crz
ao)Ck3]
*f79=x
Prolog , p_G/OU
goal Wm<z?.lS
write("hello,world!"). {*N^C@
.4wTjbO6
fJX\'Rc\
Python D+f'*|
#!/usr/local/bin/python "kX`FaAhY
print "Hello, world!" sT)6nV
,VAp>x+O
.
3GnZR,L
REXX Q(lku"U'
say "Hello, world!" BR;QY1
RXBb:f
pJd 0k"{
Ruby
#;d)?
#!/usr/bin/ruby s0r"N7~
print "Hello, world!\n" >[a FOA
fGb7=Fk
(YIhTSL"]
Scheme Z)/6??/R
(display "Hello, world!") Am=wEu[b
(newline) \@i=)dA
WNhbXyp_
H6_xwuw:
sed (需要至少一行输入) [!G)$<
sed -ne '1s/.*/Hello, world!/p' 4RhR[
*9J1$Wa
hL0]R,t;'
Smalltalk !L77y^oV
Transcript show: 'Hello, world!' u,fA!
prZ55MS.
#Rc5c+/(
SNOBOL So#dJ>
OUTPUT = "Hello, world!" iSlFRv?a
END NH'iR!iGo
1 o|T
<{giHT
SQL Rvvh{U;t
create table MESSAGE (TEXT char(15)); 6)ycmu;!$
insert into MESSAGE (TEXT) values ('Hello, world!'); N0Gf0i>
select TEXT from MESSAGE; yLW/ -%I#u
drop table MESSAGE; $_)=8"Sn
_Fizgs
\83sSw
Tcl
a"QU:<-v
#!/usr/local/bin/tcl =O,JAR"ug
puts "Hello, world!" uArR\k(
MHo1 lrZa+
[h4o7
TScript =D].`
? "Hello, world!" ~Eq \DK
=<{ RX8
]NtSu%u
Turing ]ZTcOf
put "Hello, world!" kg3ppt
h~w4, T
W
(`c
UNIX-style shell azo0{`S?
程序中的/bin/sh可改为您使用的shell < A?<N?%o
snYr9O[E6
#!/bin/sh 6
mO"
echo 'Hello, world!' |) Pi6Y
t8&q9$
Jf)3< ~G
GUI
: tM?%=Q
t+Z`n(>
Delphi 6^;^rUlm
program HelloWorld; ' "'Btxz
uses aX^+ O,
Dialogs; jJ~Y]dQi
begin zE`R,:VI
ShowMessage('Hello, World!'); 0+EN@Y^dAV
end. Uki9/QiX>
8Bpip
.^[_V
Nuva .$Bwb/a
<. tWY2o3j
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) o9Sn*p-.
.> 1zjaR4Tf
Ax!Gu$K2o
kZVm1W1
Visual Basic iq6a|XGi
MsgBox "Hello, world!" xMI+5b8
'或者 0Q~@F3N-\>
Print "Hello, world!" O"*`'D|hK
ni6r{eSQ
TJaeQqob
Visual FoxPro sS!w}o2X
? "Hello, world!" &[@\ f^~
:.iyR
g{>^`JtP
X11 5+P@sD
用一个程序 gLQ #4H
^7aN2o3{
xmessage 'Hello, world!' >fzwFNdo
\iU] s\{).
用C++和gtkmm 2 Y)XvlfJ,h?
>t3'_cBC!
#include <iostream> hVP
IHQt
#include <gtkmm/main.h> n#*`!#
#include <gtkmm/button.h> ~|lIC !q
#include <gtkmm/window.h> kIvvEh<L=
using namespace std; <\@1Zz@ms
}B q^3?,#{
class HelloWorld : public Gtk::Window 47UO*oLS
{ T&xt`|
public: MJ\[Dt
HelloWorld(); ?_q+&)4-o
virtual ~HelloWorld(); 9<s4yZF@x
protected: ~]WVG@-
Gtk::Button m_button; <L2emL_'
virtual void on_button_clicked(); -2i\G .,J
}; V5"HwN+`
dqe7s Zl!
HelloWorld::HelloWorld() : m_button("Hello, world!") X=~V6m
{ b |7ja_
set_border_width(10); Y )b@0'
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); ZPO|<uR
add(m_button); 7*s8ttX
m_button.show(); R Fko>d
} "Xn%at4
B@t'U=@7
HelloWorld::~HelloWorld() {} "tu*YNP\Q
5Qa
zHlJ
void HelloWorld::on_button_clicked() ]Kdet"+
{ Q$ZHv_VLx
cout << "Hello, world!" << endl; V 0{tap}
} vR>o}%`
NY.k.
int main (int argc, char *argv[]) #S5`Pd!I
{ K`k'}(vj
Gtk::Main kit(argc, argv); nWWM2v
HelloWorld helloworld; 4MW ]EQ-
Gtk::Main::run(helloworld); uQeu4$k!
} bAF )Bli
i0pU!`0
Tby,J
B^U
Java SKXD^OH
import java.awt.*; ?m;;D'1j
import java.awt.event.*; RuAlB*
Kt/)pc
public class HelloFrame extends Frame AQ{zx1^2>K
{ V#83!
HelloFrame(String title) !.Zt[ g}
{ @CQb[!9C
super(title); rdJB*Rlkh
} 5bX6#5uP1
public void paint(Graphics g) ii4B?E
{ Mkv|TyC
super.paint(g); M{N(~ql
java.awt.Insets ins = this.getInsets(); 6Nh0
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); d^V$Z6*
]
} E9 Y\X
public static void main(String args []) HJhH-\{@
{ S>_27r{
HelloFrame fr = new HelloFrame("Hello"); ;-@=
}zMf7<C
fr.addWindowListener( B|o%_:]+E
new WindowAdapter() >a>fb|r
{ {0yu
public void windowClosing(WindowEvent e)
Xm_$
dZ
{ BWUq%o,@g
System.exit( 0 ); G '#41>q+
} g9mG`f
} l]#!+@
); F^kwdS
fr.setResizable(true); &%F@O<:
fr.setSize(500, 100); 30F!kP*E
fr.setVisible(true); Y=B3q8l5
} wH6u5*$p
} ]=&L