“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。 ]n
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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》。 'ZHdV,dd
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以下是用不同语言写成的Hello World程序的几个例子: u?0d[mC
Ada O.+9,4A(
with Ada.Text_Io; use Ada.Text_Io; $RO$}!
procedure Hello is trYTs,KV
begin z'MS#6|}
Put_Line ("Hello, world!"); _6LoVS
end Hello; -T_\f?V88
_j ;3-m
pB01J<@m
汇编语言 +"!aM?o
B;t=B_oK
x86 CPU,DOS,TASM zK5bO=0j
MODEL SMALL .{so
IDEAL }C#3O{5
STACK 100H oyeG$mpg
YD_]!HK}
DATASEG %'ZN`XftG
HW DB 'Hello, world!$' < o I8-f
AXW!]=?X
CODESEG n Wgv~{,x
MOV AX, @data ]7/gJ>g,
MOV DS, AX P]6}\
]~
MOV DX, OFFSET HW 3N4.$#>#9@
MOV AH, 09H ([k7hUP
INT 21H 3LK%1+)4
MOV AX, 4C00H $kz!zjC'
INT 21H Fb_S&!
END 2CLB1
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U}AX0*S
x86 CPU,GNU/Linux,NASM WH$HI/%*m
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). %$mjJw<|&
;Enter this into "hello.asm" then type: kBsXfVs9
;"nasm -f elf hello.asm" nX5C<Ky
;"ld hello.o -o hello" v5$s#f<
;"./hello" x>3@R0A1:
?U9 /fl
section .data ;data section declaration lOerrP6f(
msg db 'Hello World!',0AH bhg}-dto
len equ $-msg ;string length 2{o10eL
zhsx&
section .text ;code section declaration ok0X<MR!I
global _start ;entry point (start of execution) |f' 8p8J
_start: mov edx,len ;string length sdr.u
mov ecx,msg ;string start X r_pgW|
mov ebx,1 ;file handle: stdout Ap<J'?~y
mov eax,4 ;sys_write HeIS;gfUY
int 80h ;kernel system call G$=-,6kZO
y-+G
wa3
mov ebx,0 ;return value Ja [ 4A0.
mov eax,1 ;sys_exit v59nw]'
int 80h ;kernel system call Ps>&"k$T
}~I|t!GL
|*\C{b
x86 CPU,Windows,MASM32 '}{?AUDx
.386 u-><}OVf~
.model flat,stdcall BQNp$]5s
option casemap:none `,#!C`E 9
;Include 文件定义 oXGZK5w<l
include windows.inc 2Rptxb_@
include user32.inc Tov&68A~e
includelib user32.lib 4rp6 C/i
include kernel32.inc ]VjLKFb~U
includelib kernel32.lib U^$E'Q-VK
;数据段 -2*>`,Uu
.data ;z>p8N
szCaption db 'A MessageBox!',0 d"&3Q_2CD
szText db 'Hello,world!',0 36A;!1
;代码段 EXbTCT}`x
.code z`#_F}v,m/
start: 5~}!@yzc
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK nNR:cGfG
invoke ExitProcess,NULL d*-Xuv
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> =AkX4k
end start x_:hii?6V
nVOqn\m-
F`&>NQb
AWK \Jpw1,6
BEGIN { print "Hello, world!" } AQh["1{yJ
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BASIC RVF F6N^
传统版BASIC(例如GWBASIC): R^tcr)(
fVUKvZ}P*
10 PRINT "Hello, world!" ?5~!i9pY
20 END s]x2DH+_
9d\N[[Vu]R
或在提示符输入: L82NP)St
x#
8IZ
?"Hello, world!":END [.3sE
(02g#A`
现代版BASIC(例如Quick BASIC): EfSMFPM
Oz>io\P94
Print "Hello, world!" ^!uO(B&
9dYOH)f
以下的语句在Quick BASIC中同样有效: 3B#!2|
0/Q5d,'Y[2
? "Hello,world!" aBlbg3 q
d*9j77C ]
[V5-%w^
BCPL CWMlZVG
GET "LIBHDR" ~@fanR =
vKkf2 7
LET START () BE :?#cDyW)
$( 0O;
Z
WRITES ("Hello, world!*N") `7_n}8NVC
$) 7}07Pit
Sip_~]hM
NDo^B7R-
Befunge i
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"!dlrow olleH">v H A\A$>
, ?h&l
tD
^_@ C->[$HcRa
T &*eOr
4K #^dJnC
Brainfuck .~,^u
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< V=9Bto00
+++++++++++++++.>.+++.------.--------.>+.>. }wL3mVz
4Q&mC"
opnkmM&[
C MM*-i=
#include <stdio.h> z1qUz7
UP*yeT,P,
int main(void) u[J7Y
{ 9/H^t*5t
printf("Hello, world!\n"); x`3.Wu\
return 0; R\
e#$"a5
} ]>*I) H)
d#Wn[h$"
;]u1~
C++ w6v1 q:20
#include <iostream> b)y<.pS\
{4)5]62>u
int main() :z124Zf
{ WiwwCKjSa
std::cout << "Hello, world!" << std::endl; vT}pbOTh
return 0; NIL^UN}
} qIk
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]o!&2:'N`
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C++/CLI Y?e3B x7*b
int main() bZnDd
{ C64eDX^
System::Console::WriteLine("Hello, world!"); -%N}A3m!5
} rZ 6@b
rl41#6
a6 * Y%?
C# (C Sharp) P^n{Y~P=Q
class HelloWorldApp |:/ @t
{ rcW#6VZ=
public static void Main() .Btv}b
{ "rf\' 9=
System.Console.WriteLine("Hello, world!"); GMyoSe%1/
} {AtfK>D
} m(h/:JZ\
Ic_t c
eKS:7:X
COBOL f`bIQ 9R
IDENTIFICATION DIVISION. )/
n29]
PROGRAM-ID. HELLO-WORLD. tTE3H_
wfWS-pQ
ENVIRONMENT DIVISION. P[6dTZ!\s
#C'o'%!(
DATA DIVISION. 0n7HkDo
^M"HSewo
PROCEDURE DIVISION. b^;N>zx
DISPLAY "Hello, world!". FBE @pd
STOP RUN. }%
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bmSpbX\
}.w#X
Common Lisp >n#g9v K
(format t "Hello world!~%") FC~|&
*%z<P~}
2>`m<&y
DOS批处理 ^glbxbhI4
@echo off 1h&)I%`?
echo "Hello, world!" )moo?Q
Py}!C@e
\qRjXadj
Eiffel nqUH6(
class HELLO_WORLD B/:>{2cm
0 [*nAo
creation -aTg>Q|g&
make Z={UM/6w
feature OME!W w
make is #a/n5c&6/
local /0X0#+kn
io:BASIC_IO dawVE
O
do 5Q2TT $P
!!io z2"2tFK
io.put_string("%N Hello, world!") W8\PCXnsfl
end -- make F<H`8*q9
end -- class HELLO_WORLD %'$cH$%~J
*#3voJjV(
^Osd/g
Erlang =]2
b8
-module(hello). l;.[W|
-export([hello_world/0]). G}Q}H*
~Q3WBOjn
hello_world() -> io:fwrite("Hello, World!\n"). }6yxt9
q{jk.:;'
qQ2
Forth }39M_4a&
." Hello, world!" CR (e>RNn\
P6.) P|n7=
1e+h9|hGYw
Fortran S]Yu6FtWiO
WRITE(*,10) 9Ba|J"?Y k
10 FORMAT('Hello, World!') ,APGPE}I[
STOP K gR1El.r
END HCfS)`
9}? 5p]%
UEx(~>
HTML : 8p2Jxm
<HTML> dn:|m^<)
<HEAD> hVTyv"
<TITLE> Hello World! </TITLE> 6i*p
+S?U"
</HEAD> *m `KU+o-u
<BODY> Y9\]3Kno
<p>Hello World!</p> 1o"y%*"
</BODY> WzNG<rG
</HTML> )x9nED{
n0
fF,?gm
CfWK6 >
HQ9+ %-0em!tUV
H XPR:_
[:/7OM
/cn/[O9
INTERCAL &@`H^8
PLEASE DO ,1 <- #13 3P=Eb!qtdD
DO ,1 SUB #1 <- #238 Vj9`[1}1Z
DO ,1 SUB #2 <- #112 ~7eUt^SD;
DO ,1 SUB #3 <- #112 qHcY
2LV
DO ,1 SUB #4 <- #0 uv_P{%TK
DO ,1 SUB #5 <- #64 ;mM\,
{Z
DO ,1 SUB #6 <- #238 g,{Ei]$>I
DO ,1 SUB #7 <- #26 ={wjeRp
DO ,1 SUB #8 <- #248 O(:u( U7e
DO ,1 SUB #9 <- #168 U)T/.L{0i
DO ,1 SUB #10 <- #24 JXRmu~W~l
DO ,1 SUB #11 <- #16 7J)a "d^e
DO ,1 SUB #12 <- #158 Nys'4kx7
DO ,1 SUB #13 <- #52 &T|UAM.
PLEASE READ OUT ,1 ^$Me#ls!
PLEASE GIVE UP $bM#\2'
ta+"lM7A}$
L?/M2zc9Y
Java &Pn%zfmMN
public class Hello ?U2g8D nFY
{ {H"=PYR
public static void main(String[] args) WZDokSR
{ Z_hBd['!
System.out.println("Hello, world!"); 2#Q"@
} : \ON+LQr
} 8B% O%*5`
k(w9vt0?
RvgAI`T7$
JSP R`<{W(J;r
<% Fg}5V,
out.print("Hello, world!"); 2EI m
%> 7\|NYT4
GoZJDE3
gIf+.^/m1
MIXAL IhFw {=2*
TERM EQU 19 the MIX console device number NnSI)*%'
ORIG 1000 start address h<z/LL8|
START OUT MSG(TERM) output data at address MSG *+1"S ]YF
HLT halt execution u9y-zhj_$
MSG ALF "MIXAL" SE7 (+r
ALF " HELL" t]YLt ,
ALF "O WOR" Ltq*Vcl\
ALF "LD " |Jx2"0:M
END START end of the program ybuSqFy`$
/F
|M{,}.*CU
Nuva E]e[Ty1
<..直接输出..> 'yAoZ P\|
Hello, world! i}&mz~
P.2.Ge|
<..或者..> B39PDJ]hu
L-oPb)
<. |^&2zyUj/
// 不带换行 XP
Iu]F
? "Hello, world!" }E\+e!'!2
3=eGS
// 或者 My43\p
xQ(KmP2hl
// 带换行 +cplM5X
?? 'Hello, world!' L"zgBB?K6
.> myo~Qqt?
4m g
7f^[+
36Fa9P FCc
OCaml '-1jWw:8
let main () = <45dy5!Tz
print_endline "Hello world!";; 2K7:gd8Ru
Ok.DSOT
9.w3VF_C
Pascal &>^Ympr
program Hello; k=q%FlE
begin ( ;S]{z%
writeln('Hello, world!'); C
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end. 1'._SMP
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5]O LV1Xt
Perl T>:g
ME
#!/usr/local/bin/perl =v#A&IPA'
print "Hello, world!\n"; %:8q7PN|
Fn0LE~O}-8
*ytd.^@r
PHP )T~ +>+t
<?php =R8.QBVdN
print("Hello, world!"); sMpC4E
?> #__'U6`(
!5
:1'$d]H
\iTPJcb5
Pike /iJhCB[QZ
#!/usr/local/bin/pike ?ia[KLt"
int main() m_O=X8uj"D
{ =.2cZwxX$
write("Hello, world!\n"); {m*J95[
return 0; 'H-YFB$l
} t6>Qe
n[p9$W`
[Kj#KJxy
PL/I F v^80M=z
Test: procedure options(main); Spw=+z<<Ub
declare My_String char(20) varying initialize('Hello, world!'); P`Wf'C^h
put skip list(My_String); /r 2.j3:l
end Test; U~`^Y8UF
/01(9(
C(Gb
Prolog T/.y(8!0I8
goal ra#)*fG,~
write("hello,world!"). RBojT
vBQ?S2f
yDBgSO{d
Python E$zq8-p|
#!/usr/local/bin/python {(:)
print "Hello, world!" .`8,$"`4)
?g1.-'
J+*Y)k
REXX ^*~u4app
say "Hello, world!" o2UJ*4
z\ $>k_
,OFr]74\
Ruby Vy*Z"k
#!/usr/bin/ruby ;;J98G|1
print "Hello, world!\n" YY>Uf1}*9
#a>!U'1|
xB]v
Scheme +P;D}1B#I?
(display "Hello, world!") Vt2=rD4oJk
(newline) AS-t][m#
XA^:n+Yo
,]N%(>ot
sed (需要至少一行输入) >knR>96
sed -ne '1s/.*/Hello, world!/p' $GKm`I"
e<wj5:M|
+s 0Bt '
Smalltalk u5|e9(J
Transcript show: 'Hello, world!' @Sd:]h:f-
4 sgwQ$m)
u:kY4T+Z
SNOBOL 6_
0w>
OUTPUT = "Hello, world!" v-aq".XQ
END Qy,qQA/
?{Z0g+B1
8$olP:d
SQL H/I`c>Zn
create table MESSAGE (TEXT char(15)); s3%8W==rBW
insert into MESSAGE (TEXT) values ('Hello, world!'); @*{BX~f
select TEXT from MESSAGE; L#N.pd
drop table MESSAGE; KPcuGJ
r6_a%A*
=_:L
wmI
Tcl 6M|%nBN$|
#!/usr/local/bin/tcl c<x6_H6[8
puts "Hello, world!" HcUz2Rm5XP
K1WoIv<Ym
-KiS6$-
TScript uk/+
i`=
? "Hello, world!" DfFPGFv
]>i0;RME
=5eDT~=2{U
Turing 2=
mD
put "Hello, world!" vw6FvE`lC
muq|^Hfb
@S:/6__
UNIX-style shell zQ_[wM-
程序中的/bin/sh可改为您使用的shell $q+`GXc-
^*W<$A_
#!/bin/sh U.0/r!po
echo 'Hello, world!' v%Q7 \X(
9m9=O&C~-<
*[YN|
GUI 1"6k5wrIA
8H b|'Q|^
Delphi '$^ F.2
program HelloWorld; QYGxr+D
uses *s4!;2ZhsU
Dialogs; =^M t#h."
begin j06oAer 9
ShowMessage('Hello, World!'); Z9^$jw]
end. B K;w!]
dG$0d_Pq
>u2#<k]1&
Nuva _x{x#d;L3
<. +yI^<BH
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) T480w6-@
.> 7T Bo*-!
cyE2=
C^tC} n1D(
Visual Basic _4]dPk#^
MsgBox "Hello, world!" l
d9#4D[#
'或者 pwC/&bu
Print "Hello, world!" l[| e3<H
zghm2{:`?g
qm8RRDG
Visual FoxPro d2C:3-4
? "Hello, world!" d(Ou\7
UQ~rVUo.c
=h;!# ZC
X11 Q(3x"+
用一个程序 zl?N1>KS
b1o(CG(}*
xmessage 'Hello, world!' !Esiq<Yh
dY.uOafr
用C++和gtkmm 2 KJfyh=AD(
{`Z)'G\`
#include <iostream> ^IYN"yX_
#include <gtkmm/main.h> VA.1JBQ
#include <gtkmm/button.h> RGLqn{<