“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。 #s-^4znv9
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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》。 8<VO>WA>E
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以下是用不同语言写成的Hello World程序的几个例子: Z?#_3h$"T
Ada )TmqE<[
with Ada.Text_Io; use Ada.Text_Io; p? dXs^ c
procedure Hello is RKY~[IQ,
begin Gw0_M&
Put_Line ("Hello, world!"); 6Wm`Vj(s
end Hello; %L\buwjy$
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P a{)@xT
汇编语言 9<9 c^2
Dj~]]
x86 CPU,DOS,TASM (61_=,jv\h
MODEL SMALL JE<zQf( &
IDEAL bvuoo/
STACK 100H ]7d~,<3R
} +@H&}u
DATASEG \1AtBc&
HW DB 'Hello, world!$' KVvzVQ1
[&Z3+/lR*
CODESEG eu]t.Co[X
MOV AX, @data L+c7.l.yT
MOV DS, AX nY#V~^|
MOV DX, OFFSET HW gm-I)z!tz
MOV AH, 09H `v1Xywg9P
INT 21H 0{8^)apII
MOV AX, 4C00H fVU9?^0/)9
INT 21H yN0!uzdW*
END Q}a,+*N.
7#
/c7
a^vXwY
x86 CPU,GNU/Linux,NASM N34.Bt
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 5kK:1hH7
;Enter this into "hello.asm" then type: MpV3.
;"nasm -f elf hello.asm" %7X<:f|N8x
;"ld hello.o -o hello" \WDL?(G<
;"./hello" $Vi[195]2
T,Bu5:@#
section .data ;data section declaration J H%^FF2
msg db 'Hello World!',0AH [|=#~(yYQ
len equ $-msg ;string length ,s%1#cbR
e~#"#?
section .text ;code section declaration Nn"[GB
global _start ;entry point (start of execution) IZ$7'Mo86
_start: mov edx,len ;string length kHO2&"6
mov ecx,msg ;string start C+*qU
mov ebx,1 ;file handle: stdout NV|[.g=lg
mov eax,4 ;sys_write GAZTCkB"
int 80h ;kernel system call [3yzVcr~4
4k
HFfc
mov ebx,0 ;return value RGeM.
mov eax,1 ;sys_exit 2 kOFyD
int 80h ;kernel system call i/&?e+i
>|)ia5#
K/2k/\Jk[_
x86 CPU,Windows,MASM32 d 6$,iw@>^
.386 6,ZfC<)
.model flat,stdcall M~0A-*N
option casemap:none U{IY
F{;@
;Include 文件定义 *H"IW0I
include windows.inc KuU]enC3
include user32.inc (RDY-~#~
includelib user32.lib ){AtV&{$
include kernel32.inc BFU6?\r
includelib kernel32.lib Zu4|1W
;数据段 X{n7)kgL
.data o -< 5<
szCaption db 'A MessageBox!',0 cTA8F"UGD
szText db 'Hello,world!',0 vyME
;代码段 Xq3n7d.
.code DFgr,~
start: jV(\]g"/=
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK *]ROUk@K=
invoke ExitProcess,NULL QT1(= wK3
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> [0_JS 2KE
end start &1O!guq%
\m.ap+dFa
3)F9:Tzw1
AWK uS9:cdH
BEGIN { print "Hello, world!" } g/)$-Z)Nu
4?#0fK
0p8Z l
BASIC "6T: &>
传统版BASIC(例如GWBASIC): {U$qxC]M
K!X>k
10 PRINT "Hello, world!" CaX0Jlk*
20 END L{v^:
Hpo/CY/
或在提示符输入: kmJ{(y)w
T&?0hSYt
?"Hello, world!":END z|Z<S+=f
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现代版BASIC(例如Quick BASIC): =)56]ki}
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Print "Hello, world!" z3l=aAw8
$rB20!
以下的语句在Quick BASIC中同样有效: dx=\Pq
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? "Hello,world!" _$<Q$P6y
M`W%nvEDE
(S:+#v
BCPL traJub
GET "LIBHDR" oo{5:
\z}/=Qgc
LET START () BE ]!>ThBMa
$( 7g-#v'.N
WRITES ("Hello, world!*N") btq`[gAF\
$) fIrl?X']
aBPaC=g{HO
yOn +Y
Befunge l2DhFt$!=
"!dlrow olleH">v T [w]w
, e*O-LI2O
^_@ 3Lxk7D>0c
\]y4e^FZZ
hcQvL>
Brainfuck x+V;UD=mH
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< a:C'N4K
+++++++++++++++.>.+++.------.--------.>+.>. >*xa\ve
}*!7
Vrep
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C b8V]/
#include <stdio.h> :Zy7h7P,lT
=-M)2&~L~
int main(void) nZF(92v
{ b P>!&s_
printf("Hello, world!\n"); ILt95l
return 0; zl>l.zJ
} #;bpxz1lR9
v1hrRf2<
#4(/#K 1j
C++ {~*aXu3
#include <iostream> LEM{$Fxo&
K)2ZH@
int main() :@PM+ [B|Q
{ ICNS+KsI
std::cout << "Hello, world!" << std::endl; @=[/bG
return 0; Z+!3m.q
} aqvt$u8
>3H/~ Y
myT z
C++/CLI NIeKS_ +
int main() !HA[:-JCz
{ |>(@n{
System::Console::WriteLine("Hello, world!"); I*e85wef
} G Q&9b_
m1 78S3
S7-ka{S
C# (C Sharp) e^g3J/aU
class HelloWorldApp Jtj_Rl
!
{ W_EM
k
public static void Main() nZ>bOP+,
{ (7RxCo=X
System.Console.WriteLine("Hello, world!"); Cc:4n1|]>
} q #f
U*
} :$&%Pxm
$tyF(RybG
?iH`-SY
COBOL ,jWMJ0X/N=
IDENTIFICATION DIVISION. i/rdPbq
PROGRAM-ID. HELLO-WORLD. IxT[1$e
; Xy\7tx
ENVIRONMENT DIVISION. uLYz!E+E
e{edI{g
DATA DIVISION. !1f8~"Z
z`-?5-a]I
PROCEDURE DIVISION. X{rw+!
DISPLAY "Hello, world!". q!#e2Dx
STOP RUN. vjG:
1|*e
Hz$l)g}U
?PNG@OK
Common Lisp !Gu,X'#Ab
(format t "Hello world!~%") u49zc9
tE0DST/
3 Oy-\09
DOS批处理 8tWOVLquJ
@echo off yp=Hxf
echo "Hello, world!" LTu
c s}
03*` T
aG7QLCL
Eiffel qu[ ~#
class HELLO_WORLD Gx?p,Fj
q/xMM`{
creation >:M3!6H_~{
make ReOp,A/y
feature G#/}_P
make is $ WA Fr
local Evkb`dU3n
io:BASIC_IO ^4^1)' %
do *>!O2c
!!io EWPP&(u3
io.put_string("%N Hello, world!") Efi@hdEV
end -- make Y|J\,7CM
end -- class HELLO_WORLD O"4Q=~Y
^yUel.N5"
A87JPX#R?
Erlang PL/as3O^A
-module(hello). c0]^V>}cl
-export([hello_world/0]). 7N "$~UfC
d3h2$EDD
hello_world() -> io:fwrite("Hello, World!\n"). U'S}7gya
]Q=D'1MM
k"|4
LPv[
Forth '3Yci(t+
." Hello, world!" CR I|lz;i}$
Z~{0XG\Y
2g1[E_?
Fortran /5Wy)-
WRITE(*,10) a'w~7y!}
10 FORMAT('Hello, World!') R6HMi#eF
STOP <}-[9fW
END Pg"
uisT#>
brJ_q0@
O(;K]8
HTML hK9Trr wau
<HTML> Dt)\q^bH)
<HEAD> {dJC3/Rf
<TITLE> Hello World! </TITLE> !b0'd'xe
</HEAD> 7''l\3mIn
<BODY> kH1hsDe|&y
<p>Hello World!</p> ";38vjIV
</BODY> 1g6AzUXg
</HTML> 9;s:Bo
v5l)T}Nb
jq#_*&Eg]
HQ9+ {4Y@DQ-
H `O(ec
Tx?,]c,(u
X-9>;Mb~y
INTERCAL N-|E^XIV
PLEASE DO ,1 <- #13 Etty{r}
DO ,1 SUB #1 <- #238
sBY*9I
DO ,1 SUB #2 <- #112 tWQ_.,ld
DO ,1 SUB #3 <- #112 ;>_\oZGj_
DO ,1 SUB #4 <- #0 5<bc>A-
DO ,1 SUB #5 <- #64 AEx
I!
DO ,1 SUB #6 <- #238 S?n k9T+
DO ,1 SUB #7 <- #26 %o9@[o
.]
DO ,1 SUB #8 <- #248 `E>HpRcxD
DO ,1 SUB #9 <- #168 L<!}!v5ja
DO ,1 SUB #10 <- #24 :#58m0YLA:
DO ,1 SUB #11 <- #16 V{;! vt~
DO ,1 SUB #12 <- #158 Xu`c_
DO ,1 SUB #13 <- #52 Mit,X
PLEASE READ OUT ,1 V%'`nJ!
PLEASE GIVE UP XVAyuuTg\
4>nY't;0
E%OY7zf`%
Java e> ~g!S}G
public class Hello
RvKP&
{ D_
xPa
public static void main(String[] args) !TY9\8JzV
{ \UM9cAX`
System.out.println("Hello, world!"); ^]w!ow41
} y:(OZ%g
} ;vvO#3DWM
pC
l[DE
k@U8K(:x
JSP /e :V44
<% LnIln[g:
out.print("Hello, world!"); D"0:n.
%> W)3?T&`
[2#5;')
)z-)S
MIXAL zvV<0 Z
TERM EQU 19 the MIX console device number CI"7* z_
ORIG 1000 start address "OF4#a17
START OUT MSG(TERM) output data at address MSG !spp*Q)#\
HLT halt execution Ig75bZz
MSG ALF "MIXAL" occ^bq
ALF " HELL" T%~w~stW
ALF "O WOR" CY#|VE M
ALF "LD " bVmHUcR0
END START end of the program [G2@[CtY1
S[,!
z(2pl}
Nuva <+ UEM~)
<..直接输出..> 4Gs#_|!
Hello, world! yQE|FbiA
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<..或者..> Hs/
aU_
Pe6}y
<. "*W:
// 不带换行 2^w3xL"
? "Hello, world!" r!SMF]?SJ
^Gt&c_gH
// 或者 u~n*P``{
P'.MwS
// 带换行 i'9aQi"G
?? 'Hello, world!' >p#` %S
.> <WFA3
G n"]<8yl~
|N_tVE
OCaml stuj,8
let main () = >QO^h<.>
print_endline "Hello world!";; )3# gpM
+\g/KbV7
^Pl(V@
Pascal ?q a
program Hello; .[&0FHnJ5
begin ap=m5h27
writeln('Hello, world!'); ~_opU(;f
end. MuXp*s3[
O O?e8OU
FsQeyh>
Perl {y)O?9q
#!/usr/local/bin/perl MCOiB<L6
print "Hello, world!\n"; Z`x|\jI
/jl{~R#1
]&6# {I-
PHP HS> (y2}'
<?php !/]F.0
print("Hello, world!"); >qj.!npQD
?> HT&CbEa4'
&
$E[l'
uQh dg4
Pike X[/>{rK
#!/usr/local/bin/pike 0VsQ$4'V^
int main() ?>c*[>LpZ
{ 6.
N?=R
write("Hello, world!\n"); "fK`F/
return 0; YXCltME
} _M'WTe
I\e?v`e
n@5Sp2p
PL/I 8K+(CS>xvO
Test: procedure options(main); |dIP &9
declare My_String char(20) varying initialize('Hello, world!'); Qn=3b:S-
put skip list(My_String); e_'/4
n
end Test; ]0v;;PfVl6
^b|Z<oF
3m3ljy
Prolog mGx!{v~i&
goal \7b-w81M-
write("hello,world!"). DUH\/<^g
ZK:dhwer
W0e+yIaR
Python $VEG1]/svp
#!/usr/local/bin/python ?LJ$:u
print "Hello, world!" fP3e{dVf
cs[_TJo
EWOS6Yg7
REXX p7 s#j
say "Hello, world!" kc*zP=
)Z6bMAb0'N
]0N'Wtbn
Ruby &\<!{Y<'
#!/usr/bin/ruby MJ5Ymt a
print "Hello, world!\n" FY;\1bt<<
#yNSQd
Br/qOO:n$}
Scheme u.v
5!G
(display "Hello, world!") |-Rg].
(newline) F`!B!uY
J|*Z*m
vTnrSNdSE
sed (需要至少一行输入) (Hk4~v6pqC
sed -ne '1s/.*/Hello, world!/p' %
mP%W<
)ph**g
;]*V6!6RR
Smalltalk /V'^$enK!}
Transcript show: 'Hello, world!' U@t"o3E
$DPMi9,7^
/|7@rH([{
SNOBOL tW<i;2 l
OUTPUT = "Hello, world!" R7)\wP*l5
END 8:#\g
RF3?q6j ,
)m8ve)l
SQL [3$L}m
create table MESSAGE (TEXT char(15)); H CBZ*Z-
insert into MESSAGE (TEXT) values ('Hello, world!'); R-7.q
select TEXT from MESSAGE; $db]b
drop table MESSAGE; 1D2Uomd(
$;O-1# ]
vjo@aY.x
Tcl j^4KczJl
#!/usr/local/bin/tcl zk6al$3R
puts "Hello, world!" )"( ojh
8aDSRfv*
hz:^3F`>/&
TScript $'Pn(eZHGv
? "Hello, world!" q%H`/~AYM
kg,t[Jl
>L5fc".
Turing z+@CzHCN
put "Hello, world!" yH`4sd
!-G'8a|7
|E{tS,{OhJ
UNIX-style shell ]JGh[B1gh
程序中的/bin/sh可改为您使用的shell FEOr'H<3x
L >*
F8|g
#!/bin/sh +SM&_b
echo 'Hello, world!' 9gu$vF]9!
w$5~'Cbi
\R!.VL3Tx$
GUI O$dcy!
0 QzUcr)3+
Delphi
ywQ>T+
program HelloWorld; iJ8 5okv'
uses 8PN/*Sa
Dialogs; 0P MF)';R
begin "zN2+X"&
ShowMessage('Hello, World!'); :ik$@5wp
end. Z)V m,ng
3o).8b_3g
Vgh;w-a
Nuva Z)JJ-V!
<. |AosZeO_
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) ~Onj|w7
.> 72i]`
"o| f
+&AKDVmx
Visual Basic |6qxRWT"
MsgBox "Hello, world!" I
JPpF`
'或者 o0yyP,?yh
Print "Hello, world!" v~l_6V}
*
':LBc=%
*.'9 eC0s
Visual FoxPro F'v3caE
? "Hello, world!" 3Jt7IM!9[
B~%'YQk
] ^f7s36
X11 8|-j]
用一个程序 oK-T@ &-
MU
}<-1
xmessage 'Hello, world!' ywSV4ZtM
E$u9Jbe
用C++和gtkmm 2 ';'TCb{f *
K;n2mXYGM
#include <iostream> D]n"`< Ho
#include <gtkmm/main.h> =)h<" 2
#include <gtkmm/button.h> O
}ES/<an
#include <gtkmm/window.h> Ou26QoT9XI
using namespace std; | c:E)S\
R04%;p:k#
class HelloWorld : public Gtk::Window k!&G; 6O-
{ |igr3p5Fw
public: PIZnzZ@Z;
HelloWorld(); "7]YvZYu0
virtual ~HelloWorld(); >DFpL$oP
protected: n;Nr[hI
Gtk::Button m_button; /*V:Lh
virtual void on_button_clicked(); 2s^9q9NS"
}; Dw%V.J/&o
. J/x@
HelloWorld::HelloWorld() : m_button("Hello, world!") OpNTyKbaD
{ S":55YQev!
set_border_width(10); #!A'6SgbkM
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); qw#wZ'<n
add(m_button); <yoCW?#
m_button.show(); sIVVF#0}]
} Q140b;Z
Sckt gp8
HelloWorld::~HelloWorld() {} DH@]d0N
O^Y}fo'
void HelloWorld::on_button_clicked() NWSm
{ )aV\=a |A
cout << "Hello, world!" << endl; "mbjS(-eg
} }NH\Q$ IU
fXL&?~fS
int main (int argc, char *argv[]) QU#u5sX A
{ iY|zv|;]=
Gtk::Main kit(argc, argv); {r.KY
HelloWorld helloworld; BzVF!<!
Gtk::Main::run(helloworld); 4R c_C0O
} 3?}\Hw
?g~w6|U(r
v$WH#;(\
Java 8\AyKw
import java.awt.*; i)@IV]]6yL
import java.awt.event.*; YK=o[nPmK
bOB<m4
public class HelloFrame extends Frame 46yq F
{ [Iwb7a0p
HelloFrame(String title) m
L#%H(
{ lmsO
6=I4F
super(title); 35;UE2d)<
} x|7vN E=Q
public void paint(Graphics g) {?!0<0
{ `4xnM`:L"
super.paint(g); Wzn!BgxRr
java.awt.Insets ins = this.getInsets(); JU6PBY~C'
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); {vp|f~}zTw
} %Voq"}}N
public static void main(String args []) Y=NXfTc
{
E43Gk!/|(
HelloFrame fr = new HelloFrame("Hello"); Wl29xY}`{!
We8n20wf<
fr.addWindowListener( @W_=Z0]
new WindowAdapter() /'[m6zm]
{ w[K!m.p,u
public void windowClosing(WindowEvent e) C;m,{MD
{ ?k 4|;DD
System.exit( 0 ); Iu)76Y@=5=
} M%3P@GRg
} &8!~H<S
); &