“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。 Lv`*+;1K
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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》。 woH B![Q,
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以下是用不同语言写成的Hello World程序的几个例子: V-y"@0%1
Ada },"T,t#
with Ada.Text_Io; use Ada.Text_Io; ndSM*Fq
procedure Hello is SNV[KdvP*
begin ]%{.zl!
Put_Line ("Hello, world!"); x2#5"/~4
end Hello; arCi$:-z@
8sDbvVh1F
ZfpV=DU
汇编语言 r((2.,\Z
>|)ia5#
x86 CPU,DOS,TASM K/2k/\Jk[_
MODEL SMALL +h64idM{U
IDEAL 6,ZfC<)
STACK 100H AhZ`hj
h6*&1r
DATASEG $`2rtF
HW DB 'Hello, world!$' fZ9EE3
yqy5i{Y
CODESEG )yV|vn
MOV AX, @data N2?o6)
MOV DS, AX Vvth,
MOV DX, OFFSET HW 3'd(=hJ45$
MOV AH, 09H ){AtV&{$
INT 21H V~Zi #o
MOV AX, 4C00H ]x8_f6;D
INT 21H 0!D,74r
END L[]*vj
fn%Gu s~
v^Eg ,&(
x86 CPU,GNU/Linux,NASM jRswGMx
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). m])!'Pa(=
;Enter this into "hello.asm" then type: CQf<En|1
;"nasm -f elf hello.asm" 9`"o,wGX3
;"ld hello.o -o hello" tQSj[Yl
;"./hello" Qy)+YhE
4%8}vCs
section .data ;data section declaration =!axQ[)A
msg db 'Hello World!',0AH Zz" b&`K
len equ $-msg ;string length 7}r!&Eb
TZ`@pDi
section .text ;code section declaration Q9(J$_:
global _start ;entry point (start of execution) Qz T>h
_start: mov edx,len ;string length bv.DW,l%'
mov ecx,msg ;string start Q?f%]uGFQ
mov ebx,1 ;file handle: stdout }(g`l)OX
mov eax,4 ;sys_write }Yi)r*LI3
int 80h ;kernel system call dmq<vVxC
wq|~[+y
mov ebx,0 ;return value RL|13CG OP
mov eax,1 ;sys_exit p!+7F\
int 80h ;kernel system call S?X2MX
dQoZhE
T;cyU9
x86 CPU,Windows,MASM32 Wq bfZx
.386 ND w+bR-
.model flat,stdcall 59?@55
option casemap:none -#=y
;Include 文件定义 u!k]Q#2ZR
include windows.inc <b-BJ2],k
include user32.inc \JJ>y
includelib user32.lib pK)*{fC$`
include kernel32.inc p^2"g~
includelib kernel32.lib i\P?Y(-{
;数据段 T6X%.tR>`
.data 45Z"U<I,9
szCaption db 'A MessageBox!',0 rAc
Yt9M#
szText db 'Hello,world!',0 sU
{'
;代码段 %5N;SRtv
.code @WppiZ$
start: +%Vbz7+!
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK ;z6Gk&?
invoke ExitProcess,NULL
z*Y4t?+
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> omxBd#;F$
end start PGT*4r21
@W\y#5"B
#n= b*.
AWK br!:g]Vh
BEGIN { print "Hello, world!" } OL,3Jh% x
b&LfL$
; Nw.
BASIC -Jo8jE~>V
传统版BASIC(例如GWBASIC): 89I[Dg;"u
9Fe(],AzF
10 PRINT "Hello, world!" ?
x1"uH
20 END ^*;{Uj+O~Y
traJub
或在提示符输入: oo{5:
\z}/=Qgc
?"Hello, world!":END ]!>ThBMa
~|j :xM(i
现代版BASIC(例如Quick BASIC): 9NH"Ik*
6E9y[ %+
Print "Hello, world!" )P6n,\
NLe+
以下的语句在Quick BASIC中同样有效: ]J^9iDTTA
.s4hFB^n
? "Hello,world!" U] 2fV|Hn
+k!Y]_&(:f
9aLS%-x!+
BCPL &G5=?ub
GET "LIBHDR" N-x~\B!
JHY0J
&4s
LET START () BE E$z)$`"1
$( ,&S^R yc
WRITES ("Hello, world!*N") ,"U8Fgf[r
$) 2.I'`A
`aFy2x`3
<1(:W[M
Befunge j @c
fR
"!dlrow olleH">v M@a?j<7P,m
, zu<8%
^_@ 1Aq*|JSk(
)7mX]@
r7tN(2;5
Brainfuck ={9G.%W
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< [\o+I:,}wi
+++++++++++++++.>.+++.------.--------.>+.>. 1vTncU!
uN`{; Av
`{g8A P3
C o0- 7# 2
#include <stdio.h> AL.zF\?
@`:n +r5u
int main(void) C;DNL^
{ myT z
printf("Hello, world!\n"); NIeKS_ +
return 0; Lc>9[!+#
} ;!<WL@C~
m`<Mzk.u<
RUTlwTdv
C++ h+mM
#include <iostream> t#+X*'/
R5LzqT,/N:
int main() 15Vb`Vf`N
{ #C?T
std::cout << "Hello, world!" << std::endl; ^7`"wj14
return 0; 0_HdjK
} 2e}${NZN
-GkNA"2M[
~L!*p0dS^
C++/CLI zr9o
int main() |]a=He;
{ i/rdPbq
System::Console::WriteLine("Hello, world!"); IxT[1$e
} ; Xy\7tx
uLYz!E+E
Q)\7(n
C# (C Sharp) EG5'kYw2
class HelloWorldApp vjG:
1|*e
{ Hz$l)g}U
public static void Main() \14"B gj1
{ !Gu,X'#Ab
System.Console.WriteLine("Hello, world!"); u49zc9
} tE0DST/
} &x{CC@g/
nu,#y"WQ
qO=_i d
COBOL #n^P[Zw
IDENTIFICATION DIVISION. -bHQy:
PROGRAM-ID. HELLO-WORLD. .gNWDk0$Y
]%I cUd}
ENVIRONMENT DIVISION. :ho)3kB
UhCE.#
U
DATA DIVISION. eR r.j
jR@j+p^e
PROCEDURE DIVISION. X>mY`$!/
DISPLAY "Hello, world!". <8MKjf
STOP RUN. 8P r H"pI
@NGK2J
4C^;lK
Common Lisp O=}4?Xv
(format t "Hello world!~%") '~i}2e.
wZVY h
P0J3ci}^
DOS批处理 BP2-LG&\
@echo off <va3L y)c&
echo "Hello, world!" I0 a,mO;m
v8"plx=3
\P]w^
Eiffel >ir'v5
class HELLO_WORLD M:|Z3p K
H8~<;6W
creation J#B%
#X
make TEl:;4
feature >TUs~
make is c6sGjZdR
local zyTP|SXk
io:BASIC_IO >*H>'O4
do 2't<Hl1qN
!!io cZKK\hf<
io.put_string("%N Hello, world!") !=@Lyt)_b
end -- make S!qJqZ<Bv
end -- class HELLO_WORLD `k65&]&d
*@fR36
e{8z1t20:
Erlang T9]|*~ ,T
-module(hello). a&~_ba+
-export([hello_world/0]). 3DnlXH(h1
9^h\vR|]S
hello_world() -> io:fwrite("Hello, World!\n"). }^WQNdws56
<`*}$Zh
Pk[:+. f(
Forth vJDK]p<}
." Hello, world!" CR obRR))
* ]~ug%a
tVd\ r"0k
Fortran D8N}*4S
WRITE(*,10) +8 5]]}I
10 FORMAT('Hello, World!') 2<wuzP|
STOP -}0S%|#m
END ?ix--?jl
-frmvNJ F
d_=@1JM>
HTML 8R Wfv}:X
<HTML> GwxxW
<HEAD> ')t
:!#
<TITLE> Hello World! </TITLE> #}L75
</HEAD> 6 ]W!>jDc
<BODY> #k8bZ?*:
<p>Hello World!</p> Ql
a'vcT
</BODY> =8$//$
</HTML> "Wr5:T-;
RvKP&
S!<YVQq
HQ9+ lxy_O0n
H |t*(]U2O0
;NH5
L,
9Y!N\-x`
INTERCAL /
pzdX%7
PLEASE DO ,1 <- #13 S-{[3$
DO ,1 SUB #1 <- #238 c^vPd]Ed
DO ,1 SUB #2 <- #112 \"B?'Ep;
DO ,1 SUB #3 <- #112 'HTr02riY
DO ,1 SUB #4 <- #0 sHD8#t^{
DO ,1 SUB #5 <- #64 u
Jy1 vI
DO ,1 SUB #6 <- #238 YO7Y1(`
DO ,1 SUB #7 <- #26 Wr Ht
DO ,1 SUB #8 <- #248 BDSZ '
DO ,1 SUB #9 <- #168 }#'wy
DO ,1 SUB #10 <- #24 Kk1 591'
DO ,1 SUB #11 <- #16 HQ~`ha.
DO ,1 SUB #12 <- #158 %JM:4G|q
DO ,1 SUB #13 <- #52 $ysemDq-a\
PLEASE READ OUT ,1 `Bk7W]{L
PLEASE GIVE UP R06L4,/b
)I'?]p<
C( 8i0(1
Java t!QuM_i3
public class Hello jY%&G#4
{ 6nh!g
public static void main(String[] args) |niYN7 17
{ B*7Y5_N
System.out.println("Hello, world!"); xgHR;USH
} "MHm9D?5
} Y$hYW
~$n4Yuu2[
=!T@'P?
JSP !E!i`yF
<% DhY.5
out.print("Hello, world!"); b"n8~Vd
%> iSu7K&X9q
w>Iw&US
W1'F)5(?7
MIXAL uKc x$
TERM EQU 19 the MIX console device number 7S$Am84%
ORIG 1000 start address eqbQ,, &
START OUT MSG(TERM) output data at address MSG 0+MNu8t
HLT halt execution twElLOE
MSG ALF "MIXAL" 2g5i3C.q$
ALF " HELL" HA&7
ybl
ALF "O WOR" Jb~$Vrdy
ALF "LD " H'k $<S
END START end of the program Y,Dd}an
3qJOE6[}%
/aS= vjs
Nuva /ivcqVu]
<..直接输出..> _R&mN\ey5
Hello, world! yO*~)ALb+
NRu_6~^^
<..或者..> i
,Cvnp6Lv
[8|Y2Z\N
<. ~!UC:&UKo
// 不带换行 Yt&Isi
+
? "Hello, world!" hhd%j6
' i5 VU4?K
// 或者 p=%Vo@*]
s}Phw2`1U
// 带换行 y4*i
V;"
?? 'Hello, world!' 8*7t1$
.> K~'!JP8@
x|4m*>Ke
0_'(w;!wq:
OCaml
m,}0p
let main () = MU6|>{
print_endline "Hello world!";; Zjqa n
)!6JSMS
<T]%Gg8
Pascal },58B
program Hello; 0K/Pth"*
begin (:9yeP1
writeln('Hello, world!'); k(LZ,WSR
end. HJ#3wk "W
,/0Q($oz
$A~UA
Perl zVN/|[KP4
#!/usr/local/bin/perl GL;@heP
print "Hello, world!\n"; y/=:F=H@w
Gk_%WY*
Z]?Tx2|7
PHP N(i%Oxp1
<?php .Zo%6[X
print("Hello, world!"); >[t0a"
?> ^u'hl$`^
"XPBNv\>_
$VEG1]/svp
Pike _|<kKfd?
#!/usr/local/bin/pike l-s%3E3
int main() PPoQNW
{ k=;>*:D%
write("Hello, world!\n"); ;:<z hO
return 0; kc*zP=
} )Z6bMAb0'N
WgHl.
:R
n>Cl;cN=
PL/I +c)"p4m
Test: procedure options(main); @ig'CF%(
declare My_String char(20) varying initialize('Hello, world!'); x_za
R}WI
put skip list(My_String); 6,C2PR_+
end Test; 0IZaf%zYc
A:|dY^,:?*
/$NDH]a
Prolog t][U`1>i
goal zED#+-7
write("hello,world!"). yx5F]Z<M2
L{`S^'P<
5mzOr4*0
Python 6 3TeTGp$
#!/usr/local/bin/python Xjb 4dip
print "Hello, world!" 8yW 8F26
wyzx9`5~d
2n]UNC
REXX }YV,uJH[
say "Hello, world!" !`kX</ha.
7#
>;iGuz
%v}SJEXFp
Ruby ggluQGA
#!/usr/bin/ruby 2_S%vA<L
print "Hello, world!\n" 2MT_5j5[N
lT.Q)(
t<~WDI|AN
Scheme y{&k`H
(display "Hello, world!") :~uvxiF
(newline) m7<HK,d
dA,irb I0W
%>,B1nt
sed (需要至少一行输入) F;
upb5
sed -ne '1s/.*/Hello, world!/p' zzlqj){F
JFOto,6L:
:TU|;(p
Smalltalk #+VH]7]
Transcript show: 'Hello, world!' yf|,/{S
!Cqm=q{K
fPXMp%T!
SNOBOL \.0cA4)[$
OUTPUT = "Hello, world!" m/{HZKh
END /"~ D(bw0=
GCrIaZ
1zo0/<dk
SQL 3C:!\R
create table MESSAGE (TEXT char(15)); ^3>Qf
insert into MESSAGE (TEXT) values ('Hello, world!'); MHF31/g\
select TEXT from MESSAGE; Z|78>0SAt
drop table MESSAGE; M.DU^-7
J#k3iE}
Qu 7#^%=
Tcl )gX7qQ
#!/usr/local/bin/tcl z@70{*
puts "Hello, world!" 4}i2j
qcN{p7=0
]lBe
TScript ~*R:UTBtw
? "Hello, world!" s,5SWdb\v
(~59}lu~
:S['hBMN
Turing ioIOyj
put "Hello, world!" Drn{ucIs
Kmk}Yz
Z`_`^ \"
UNIX-style shell 8}B*a;d
程序中的/bin/sh可改为您使用的shell R,Gr{"H
"hE/f~\
#!/bin/sh [{s 1=c
echo 'Hello, world!' 4[\$3t.L
/ 7i>0J]
JPo.&5k
GUI 33R1<dRk
D)kh"cK*1
Delphi B/:+(|
program HelloWorld; %_kXC~hH_
uses j|6@>T1
Dialogs; ]1 V,_^D
begin ">{Ruv}$
ShowMessage('Hello, World!'); 4jWzYuI&J
end. s=[Tm}[
uq/z.m
m7dpr$J
Nuva `5HFRgL`.
<. 0n FEPMO
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) VXE85
.> \vH /bL
G<F+/Oi&DX
E?VPCx
Visual Basic 0r4,27w
MsgBox "Hello, world!" >DFpL$oP
'或者 Lc&LF*
Print "Hello, world!" nZ4JI+Q)~
WFGcR9mN?
P^lzl:|
Visual FoxPro /mi9q
? "Hello, world!" \2UtT@3|C
3 s @6pI
^)JUl!5j]C
X11 f *Xum[
用一个程序 u~uR:E%'C
z%4E~u10
xmessage 'Hello, world!' {Df97n%h;
#
用C++和gtkmm 2 1 #zIAN>
.C6wsmQ
#include <iostream> )2nx5"
#include <gtkmm/main.h> D.!ay>o0#
#include <gtkmm/button.h> 5B|&+7dCw
#include <gtkmm/window.h> A`5/u"]*D
using namespace std; WfdM~k\
?{)s dJe
class HelloWorld : public Gtk::Window 34D7qR
{ [!g$|
public: iXF iFsb
HelloWorld(); z:
;ZPSn
virtual ~HelloWorld(); TO,XN\{y
protected: o@6hlLr
Gtk::Button m_button; +#B4Z'nT
virtual void on_button_clicked(); 1X ?9Ji)h
}; m'!smSx8
*mvDh9v
HelloWorld::HelloWorld() : m_button("Hello, world!") _`oP*g =
{ hc2AGeZr
set_border_width(10); &N