“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。 %h}Q f&U_
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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》。 q c(R
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以下是用不同语言写成的Hello World程序的几个例子: :~I^ni
Ada 9g7d:zG
with Ada.Text_Io; use Ada.Text_Io; f<14-R=
procedure Hello is g*]hmkYe9
begin {|KFgQ'\
Put_Line ("Hello, world!"); [y(DtOR
end Hello; -8HK_eQn
Dl
a }-A:
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汇编语言 N~""Lc&
rq>}]
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x86 CPU,DOS,TASM }ZQ)]Mr
MODEL SMALL o!]muO*Rm
IDEAL QKW\z aG
STACK 100H dRdI('
bW]7$?acv
DATASEG HE;}B!>
HW DB 'Hello, world!$' y*F !k{P
wbIgZ]o!/;
CODESEG L}~"R/iWCT
MOV AX, @data [>2iz
MOV DS, AX s6q6)RD"
MOV DX, OFFSET HW '|I8byiK
MOV AH, 09H xRX2u_f$<
INT 21H Qm-I=Rh+
MOV AX, 4C00H FAkrM?0/
INT 21H / [s TN.MG
END YFJw<5&
Uuxx^>"h\
VjI=5)+~
x86 CPU,GNU/Linux,NASM 4YV0v,z
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). sf([8YUd
;Enter this into "hello.asm" then type:
#r=Jc8J_
;"nasm -f elf hello.asm" i\zVP.c])*
;"ld hello.o -o hello" D*%? 0
;"./hello" Q9yIQ{>H[
Ulf'gD4e
section .data ;data section declaration Q #Tg)5.\
msg db 'Hello World!',0AH Wc*jTip
len equ $-msg ;string length V-{3)6I$hG
D6$*#D3U
section .text ;code section declaration t@&U2JaL>W
global _start ;entry point (start of execution) /5!0wxN
_start: mov edx,len ;string length ag_*Z\
mov ecx,msg ;string start a2!U9->!
mov ebx,1 ;file handle: stdout z4qc)-
{L
mov eax,4 ;sys_write URd0|?t9^L
int 80h ;kernel system call w4nU86oZYl
w)rd--9f
mov ebx,0 ;return value @%'1Jd7-Wp
mov eax,1 ;sys_exit 5}3#l/
int 80h ;kernel system call P<%}!Y
W\c1QY$E
fT2F$U
x86 CPU,Windows,MASM32 \,AE5hnO
.386 YE*%Y["
.model flat,stdcall r|_@S[hZg
option casemap:none d-sT+4o}
;Include 文件定义 5%_aN_1?ef
include windows.inc K8=jkU
include user32.inc Sx0/Dm
includelib user32.lib b8
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include kernel32.inc }@y(-7t
includelib kernel32.lib oH,{'S@q
;数据段 gTS}'w{
.data W ZT) LYA
szCaption db 'A MessageBox!',0 YYN'LF#j
szText db 'Hello,world!',0 4St-Q]Y _
;代码段 &-$27
.code fTOGW`s^
start: 7DKTd^^M
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK 83adnm
invoke ExitProcess,NULL /fSsh;F
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 8\X-]Gh\^
end start 2Ij,OIcdBE
Op'&c0l
:cxA
AWK EY`]""~8v
BEGIN { print "Hello, world!" } $ {h1(ec8
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J2Mq1*Vp q
BASIC {E;oirv&
传统版BASIC(例如GWBASIC): ri`;
*mJ\Tzc)
10 PRINT "Hello, world!" 64L;np>
20 END EzeU-!|W
k\TP3*fD
或在提示符输入: Ygbyia|
[[#R ry
?"Hello, world!":END B1V+CP3t
Eq?U$eE
现代版BASIC(例如Quick BASIC): I/*^s
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Print "Hello, world!" 7 w<e^H?
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以下的语句在Quick BASIC中同样有效: HU/2P` DGP
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? "Hello,world!" q@^^jlHP
!,^y!+,Qy
x*sDp3f[*
BCPL <N:)Xf9`
GET "LIBHDR" ?Rk[P
cX<
uznYLS
LET START () BE 8B(=Y;w
$( ?Dl; DE1
WRITES ("Hello, world!*N") v:P=t2q
$) +MqJJuWB
Hz"FGwd
Q Hr'r/0
Befunge !Ln 'Mi_B
"!dlrow olleH">v hD[r6c
, BM{*5Lf
^_@ >m:n6M'r
~>H,~</`
o-o -'0l
Brainfuck t2iQ[`/?~
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< ~"\WV4}`v
+++++++++++++++.>.+++.------.--------.>+.>. #~m8zG
|)C
#
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C gBO,
#include <stdio.h> ckb(+*+l
&ty-aB=F
int main(void) Lq62
{ qg/FI#r
printf("Hello, world!\n"); njZJp|y6
return 0; }[=)sb_
} ULhXyItL
BIS .,
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C++ n2~WUK
#include <iostream> rvU^W+d
2rW9ja
int main() &Dt=[yqeG
{ m] yUcj{F
std::cout << "Hello, world!" << std::endl; .^2.h
return 0; '"+Gn52#
} A.mFa1lH
@u`W(Ow
U[2;Fkapi
C++/CLI wwRPfr[
int main() ~;z]
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{ M~7Cb>%<
System::Console::WriteLine("Hello, world!"); VC0Tqk
} "UreV
B9Mp3[
5
1N/XEk
C# (C Sharp) ^<Gxip
class HelloWorldApp A|4om=MO
{ @lX%Fix9
public static void Main() #jzF6j%G
{ -LT!LBnEkf
System.Console.WriteLine("Hello, world!"); -L4G)%L\
} HI{h>g T
} cIQbu#[@
YR? E
z<p
IN@o9pUjV
COBOL 9XYm8g'X
IDENTIFICATION DIVISION. ce#Iu#qT
PROGRAM-ID. HELLO-WORLD. xAl8e
.zl[nx[9"D
ENVIRONMENT DIVISION. F:d2;
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DATA DIVISION. Q"D5D
rj
{* :^K\-
PROCEDURE DIVISION. &ds+9A
DISPLAY "Hello, world!". 0g6sGz=
STOP RUN. OjAdY\
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!*L)v
Common Lisp $U.|
(format t "Hello world!~%") w;{Q)_A
OF={k[
pdR\Ne0P*
DOS批处理 G[JWG
@echo off N UvVhy]{
echo "Hello, world!" :<bhQY
|O6/p7+.
M)!"R [V
Eiffel N*hV/"joZ
class HELLO_WORLD 7G^Q2w
*r[V[9+y-D
creation y2#"\5dC
make 0;@>jo6,!
feature k7Qs#L
make is (_!I2"Q*
local vb?.`B_>&
io:BASIC_IO {aq)Y>o5:T
do ~c<8;,cjYR
!!io S5u$I
io.put_string("%N Hello, world!") kS&>g
end -- make :hs~;vn)
end -- class HELLO_WORLD U]gUGD!5x
mv #hy
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Erlang 37kVJQcA1
-module(hello). wggB^ }~
-export([hello_world/0]). 6pSTw\/6
^\Z+Xq1~/
hello_world() -> io:fwrite("Hello, World!\n"). [T,^l#S1
eUZk|be
2C}Yvfm4
Forth n[gE[kw
." Hello, world!" CR d{Jk:@.1
gSw4\ R
,b&hLht
Fortran .#bf9JOE
WRITE(*,10) w&p(/y
10 FORMAT('Hello, World!') 7 s{vou
STOP UO&$1rV
END CEI"p2
* 30K}&T
(E)hEQ@8
HTML RqGX(Iuv
<HTML> xSd&xwP
<HEAD> BCe'J!
<TITLE> Hello World! </TITLE> ^Z#G_%\Y:
</HEAD> +|d]\WlJ
<BODY> qe#5;#
<p>Hello World!</p> )dX(0E4Td/
</BODY> #+l`tj4b/
</HTML> Sx QA*}N
RG'76?z
(m,H 5
HQ9+ *l{epum;
H Nj3iZD|
n<j+KD#a
Pb>/b\&JS
INTERCAL po*8WSl9c[
PLEASE DO ,1 <- #13 6];3h>c]N
DO ,1 SUB #1 <- #238 KS93v9|
DO ,1 SUB #2 <- #112 .!KsF
h,pK
DO ,1 SUB #3 <- #112 {Ba&
DO ,1 SUB #4 <- #0 H}5WglV.
DO ,1 SUB #5 <- #64 vE'{?C=EM
DO ,1 SUB #6 <- #238 M
Zz21H
DO ,1 SUB #7 <- #26 YIg43Av
DO ,1 SUB #8 <- #248 z8ZQL.z%h
DO ,1 SUB #9 <- #168 Ve|:k5z
DO ,1 SUB #10 <- #24 f0sGE5
DO ,1 SUB #11 <- #16 ;j/$%lC
DO ,1 SUB #12 <- #158 $Y6\m`
DO ,1 SUB #13 <- #52 \H:T)EVy
PLEASE READ OUT ,1 J??AU0vh
PLEASE GIVE UP $ch`.$wx
hI!BX};+}
]}N01yw|s
Java )h]#:,pm
public class Hello =?.oH|&\h
{ KH;~VR8"/
public static void main(String[] args) O6G'!h\F
{ ]$Z:^"JS3
System.out.println("Hello, world!");
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} Y /_CPY
} LZe)_9$
3r kcIVO
sd\p[MXX
JSP q/U-6A[0
<% $xZ ~bE9
out.print("Hello, world!"); Cn3_D
%> `L`+`B
&;d
N:F;
gx9Os2Z|3
MIXAL WV$CZgL
TERM EQU 19 the MIX console device number {IV%_y?
ORIG 1000 start address |{YN3"qN
START OUT MSG(TERM) output data at address MSG -C
q;
HLT halt execution h9ScN(|0y
MSG ALF "MIXAL" ":Tm6Nj
ALF " HELL" Yw3'9m^
ALF "O WOR" )ciP6WzzbI
ALF "LD " W]ca~%r
END START end of the program g) u%?T
E^F<"mL*
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Nuva ~SQxFAto
<..直接输出..> ~h@@y5<4
Hello, world! 0W*{ 1W
L/tn;0
<..或者..> 7amVnR1f
|cma7q}p
<. OY`B{jV-
// 不带换行 @Uez2?
? "Hello, world!" TsaQR2J@
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// 或者 11yXI[
1W{N6+u
// 带换行 El<*)
?? 'Hello, world!' =9a2+ v0
.> A%.mIc.
!g]5y=
TR0y4u[
OCaml ,-y9P
let main () = XJ4f;U
print_endline "Hello world!";; NVv
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YK3>M"58
29RP$$gR
Pascal DQXUh#t\(]
program Hello; ;3cbXc@]
begin #_ |B6!D!
writeln('Hello, world!'); MJ)lZ!KZ
end. #4'wF4DR@
pd'0|
K4!-%d$
Perl E?XaU~cpc
#!/usr/local/bin/perl
QPx5`{nN
print "Hello, world!\n"; %vJHr!x
46 A sD
f)/Z7*Z
PHP OT])t<TF6
<?php +{I_%SsG
print("Hello, world!"); J;0;oXwJ<
?> ~ 1h#
:*''ci
yXR1NYg
Pike `Y?VQ~ci>
#!/usr/local/bin/pike Q4"\k.
?
int main() n(F!t,S1i
{ r.H`3m.0q
write("Hello, world!\n"); P9cx&Hk9
return 0; 2^WJ1: A
} d+JK")$9C
o]e,5]
lnZ{Ryo(
PL/I tUv>1)
[
Test: procedure options(main); 3^o(\=-JX
declare My_String char(20) varying initialize('Hello, world!'); G68KoM
put skip list(My_String); !,Uo{@E)Y
end Test; M5`v^>
+FTc/r
"Lbsq\W>
Prolog q3$8"Q^
goal \Z]+j@9
write("hello,world!"). X8|H5Y:
pr0X7 #_E5
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Python <,]:jgX
#!/usr/local/bin/python JtL>mH
print "Hello, world!" Pp8S\%z~h
cfLLFPhv)
XNYA\%:5S
REXX ;>J!$B?,
say "Hello, world!" .Mq#88o.*
&K9;GZS?
&uNec(c
Ruby _gT65G~z
#!/usr/bin/ruby '$tCAS
print "Hello, world!\n" /Y7^!3uM
TrjyU
=A"Abmx|
Scheme \H] |5fp*
(display "Hello, world!") uAO!fE}CJ
(newline) mk>; 3m*
RaJTya^
v ccH(T
sed (需要至少一行输入) t%=7v)IOE
sed -ne '1s/.*/Hello, world!/p' E=s h^Q(A
TjW!-s?S
`fBQ?[05.
Smalltalk /%T/@y
Transcript show: 'Hello, world!' o7) y~ ke
)(}[S:`
-H-U8/W C
SNOBOL sl' 4AK~\
OUTPUT = "Hello, world!" Ln&pe(c
END 5
D|#l*V
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Ebnb-Lze,
SQL wNf:_^|}
create table MESSAGE (TEXT char(15)); UUt"8]@[
insert into MESSAGE (TEXT) values ('Hello, world!'); \((iR>^|
select TEXT from MESSAGE; dfDjOZSL
drop table MESSAGE; I5Vn#_q+b
`0d0T~
jl,gqMn"V
Tcl / ;`H )
#!/usr/local/bin/tcl h,{m{Xh
puts "Hello, world!" RHF"$6EAFG
uJ% <+I
7>Scf
TScript W{6QvQD8
? "Hello, world!" z74JyY
PUdv1__C
xWLvx'8W
Turing CNB
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put "Hello, world!" I,?NYIG"(
%_!/4^smE
c2E /-n4K@
UNIX-style shell A2'i~_e
程序中的/bin/sh可改为您使用的shell 4)8k?iC*
@cDB 7w\
#!/bin/sh fv;Q*; oC&
echo 'Hello, world!' Hg#tSE
c1H.v^Y5
2q?/aw ;Z
GUI [OC(~b
vt
EfH
Delphi CmU@8-1
program HelloWorld; 6#Vl3o(E|
uses &h5Vhzq(<
Dialogs; 6{2y$'m8
begin JYdb^j2c
ShowMessage('Hello, World!'); FnGKt\
end.
b_x!m{
1iT_mtXK$
/J`}o}
Nuva mv9D{_,pD
<. -)A:@+GF
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) t^#1=nK
.> A c_P^
-laH^<jm5
HhbBt'fH
Visual Basic 1 iH@vd
MsgBox "Hello, world!"
']}-;m\
'或者 Tuvs}
Print "Hello, world!" *DJsY/9d}'
WIWo4[(
_H| )g*]t
Visual FoxPro `m 5\
? "Hello, world!" Es=G' au
[@K'}\U^+
hb[ThQ
X11 ?$pNd uE
用一个程序 @nH3nn
w-).HPe
xmessage 'Hello, world!' jFQ y[k-B
!'$*Z(
用C++和gtkmm 2 frcAXh9
bJ2-lU% ;2
#include <iostream> ]OpGD5jZ
#include <gtkmm/main.h> KloX.y)q
#include <gtkmm/button.h> xW"O|x$6
#include <gtkmm/window.h> S^s-md>
using namespace std; XDK Me}
_`2%)#^o
class HelloWorld : public Gtk::Window '(K4@[3t
{ g~<[;6&