“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。 5}4>vEn
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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》。 G O[u
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以下是用不同语言写成的Hello World程序的几个例子: X\1.,]O >
Ada 5Ve
T8/7Q
with Ada.Text_Io; use Ada.Text_Io; \# _w=gs<i
procedure Hello is AvcN,
begin IoCi(N;
Put_Line ("Hello, world!"); @a}\]REn
end Hello; ;<H\{w@D
ki?ETC
)sLXtV)nm6
汇编语言 lpnPd{kE
}K|40oO5
x86 CPU,DOS,TASM ' 1D1y'
MODEL SMALL qS[KB\RN1
IDEAL ZjveXrx
STACK 100H fl+2'~
Yu:!l>
DATASEG s:*" b'
HW DB 'Hello, world!$' !"SuE)WM
Lnc>O'<5P9
CODESEG [! YSW'
MOV AX, @data SquuK1P=
MOV DS, AX -"5r-q q*
MOV DX, OFFSET HW s&L 6C[
MOV AH, 09H ^oDSU7j5,
INT 21H UF;iw
MOV AX, 4C00H )#v0.pE
INT 21H AEo
END 2}6StmE }
^q\9HBHT
J_d!` Hhe
x86 CPU,GNU/Linux,NASM 8B;HMD
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). Id=g!L|
;Enter this into "hello.asm" then type: /JQY_>@W
;"nasm -f elf hello.asm" ;oWak`]f
;"ld hello.o -o hello" :xZ^Jq91
;"./hello" Ja{[T
~ekV*,R"
section .data ;data section declaration Jj7he(!_1
msg db 'Hello World!',0AH %Wa. 2s
len equ $-msg ;string length <CN+VXF
L+Q.y~
section .text ;code section declaration fcisDu8n
global _start ;entry point (start of execution) :tT6V(-W
_start: mov edx,len ;string length ;`
!j~
mov ecx,msg ;string start A;7At!kK
mov ebx,1 ;file handle: stdout ^ ^k]2oG
mov eax,4 ;sys_write L~HL*~#d
int 80h ;kernel system call nZ/pi$7
2!";?E
mov ebx,0 ;return value !T~C =,;
mov eax,1 ;sys_exit TSUT3'&~p
int 80h ;kernel system call +t*Ks_V,*
VP_S[+Zv~
qx`)M3Mu|<
x86 CPU,Windows,MASM32 c63yJqiW
.386 !1xX)XD4y
.model flat,stdcall (}MN16!
option casemap:none T*rx5*:o
;Include 文件定义 2-_d~~O1N
include windows.inc !@9G9<NK
include user32.inc ,Kwtp)EX
includelib user32.lib =v7%IRP5
include kernel32.inc L]{1@~E:q
includelib kernel32.lib W5R /
;数据段 4(TR'_X(
.data /7uAf{
szCaption db 'A MessageBox!',0 a
G\
szText db 'Hello,world!',0 2)(ynrCe
;代码段 Kd;)E 9Ti
.code ^'Qe.DW[
start: 52q<|MW%
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK Gk]6WLi
invoke ExitProcess,NULL ?(>fB2^
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> eY8rm
end start >rid3~
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4x2,X`pe3
AWK VTJxVYE
BEGIN { print "Hello, world!" } Q$8K-5U%
i]}`e>fF
]OLe&VRix
BASIC i2 G.<(3O
传统版BASIC(例如GWBASIC): um*!+Q
G }U'?p
10 PRINT "Hello, world!" Rv)>xw
20 END +|zcjI'=O
EJ=ud9
或在提示符输入: l1eF&wNC
zaG1
?"Hello, world!":END Q8^g WBc
MhZ\]CAs9
现代版BASIC(例如Quick BASIC): d#-'DO{k
%IK[d#HO
Print "Hello, world!" Yqb3g(0
cCO2w2A[*
以下的语句在Quick BASIC中同样有效: ;Miag'7
!M;><b}=5
? "Hello,world!" _7b' i6-
\&b1%Asyz
Uq^-km#a
BCPL L'r gCOJ<
GET "LIBHDR" VQ^}f/A
>Qx
:l#B
LET START () BE u:M)JG
$( bL0>ul"
WRITES ("Hello, world!*N") Y|~+bKa
$) D"8 ?4+
kn&>4/')
T1i}D"H %
Befunge +{au$v}
"!dlrow olleH">v I8Q!`KJ
, ]La~Bh6;m
^_@ '|@?R |i0
fzjAP7 y
GEtzLaq<
Brainfuck M6XpauR-
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< P~M<OUg
+++++++++++++++.>.+++.------.--------.>+.>. "g:1br?X,9
$u%7]]Y^\
^!rAT1(/_
C #}S<O_
#include <stdio.h> PDkg@#&y,k
>*Ctp +X@
int main(void) {8T/;K@
{ Pd04
printf("Hello, world!\n"); D8f4X
w}=
return 0; si#1sdR
} raJv$P
SSysOeD+
U o[\1)
C++ ZK5
wZU
#include <iostream> #D-Ttla
"wnN
0 p
int main() ^=[b]*V
{ 0bl 8J5Ar5
std::cout << "Hello, world!" << std::endl; D.*o^{w|
return 0; k nljc^
} u{5+hZ
qyL!>kZr@
8:fq!m
C++/CLI ndHUQ$/(
int main() `l0"4[?
{ U?=-V8#M|
System::Console::WriteLine("Hello, world!"); 1<;G
oC"
} +d=w%r)
[Zne19/
k\Z7Dg$\D
C# (C Sharp) :%>TM/E N
class HelloWorldApp d8.A8<wUr
{ cf,^7,-`"
public static void Main() A5go)~x\
{ dU&hM<.|
System.Console.WriteLine("Hello, world!"); 98XlcI#
} IsiBn(1Z
} i,!t u
11?d,6Jl
#oJ%i+V
COBOL T\w{&3ONm
IDENTIFICATION DIVISION. }6!m Q
PROGRAM-ID. HELLO-WORLD. om2)Cd9~7
tL]T_]z
ENVIRONMENT DIVISION. d~#:t~
$,
;k
(M4?
DATA DIVISION. A,4Z{f83
-+y3~^EYm,
PROCEDURE DIVISION. `J%35
DISPLAY "Hello, world!". AmB*4p5b
STOP RUN. 7gE/g`"#
c7A]\1 ~
3jjV
bm
Common Lisp y'C
(format t "Hello world!~%") .4[M7)
D[dI_|59a
[F+*e=wjN>
DOS批处理 o^W.53yX
@echo off }p `A>
echo "Hello, world!" jIck!
Q!{,^Qb
?*&5`Xh
Eiffel a+<{!+3v
class HELLO_WORLD sp6A*mwl
Qv]>L4PO
creation _2X6c,
make z@[-+Q:
feature X3m)
make is M\9+?
local '?1g_C QsS
io:BASIC_IO $0*D7P^8
do <Aqo[']
!!io e \.
io.put_string("%N Hello, world!") x:+]^?}r
end -- make a xz-H`oq4
end -- class HELLO_WORLD BG/RNem
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HL%|DCo
Erlang ,L\>mGw
-module(hello). Bhk@0\a
-export([hello_world/0]). <OTx79m
yH0vESgv
hello_world() -> io:fwrite("Hello, World!\n"). S]?I7_
5%"sv+iO
m8Rt>DY
Forth Ge1"+:tbJ
." Hello, world!" CR ~cSE 9ul
AbIYdFX B
MB+a?u0\
Fortran %7
$X
*
WRITE(*,10) j%i6H1#.Z
10 FORMAT('Hello, World!') NUh+ &M
STOP ?hKpJA'%
END 03gYl0B
"EnxVV
VjJ}q*/3e
HTML ]QJ7q}
<HTML> Bh;N:{&^Eu
<HEAD> {J-Ojw|Y b
<TITLE> Hello World! </TITLE> \lF-]vz*
</HEAD> _Uhl4Mh
<BODY> rC6@
]
<p>Hello World!</p> 3cc;BWvM
</BODY> !-4VGt&c,
</HTML> o
@nsv&i
@4Lol2
<sG}[:v
HQ9+ dst!VO:
M
H {dwlW`{
p21li}Iu
~7:Q+ 0,,
INTERCAL t@jke
PLEASE DO ,1 <- #13 )H+ p6<
DO ,1 SUB #1 <- #238 W4=A.2[q
DO ,1 SUB #2 <- #112 JhvT+"~
DO ,1 SUB #3 <- #112 bycnh
DO ,1 SUB #4 <- #0 Zou;o9Ww
DO ,1 SUB #5 <- #64 P>'29$1'
DO ,1 SUB #6 <- #238 lQpl8>
DO ,1 SUB #7 <- #26 D&1(qi=x&
DO ,1 SUB #8 <- #248 vw
:&c.zd
DO ,1 SUB #9 <- #168 !ezy
v`
DO ,1 SUB #10 <- #24 VyWzb
DO ,1 SUB #11 <- #16 n$<n
Yr`X
DO ,1 SUB #12 <- #158 ,,;vG6^a
DO ,1 SUB #13 <- #52 NG?g(
PLEASE READ OUT ,1 t(UdV
PLEASE GIVE UP 04:QEC"9mj
3-BC4y/
=d/$B!t{
Java P?Kg7m W
public class Hello T}Wse{
{ 9JO1O:W
public static void main(String[] args) TP mb]j
{ 7#C3E$gn?
System.out.println("Hello, world!"); ,%U\@*6=
} UL"
M?).5
} !e}4>!L,(^
'?T<o
g#o9[su
JSP 6
2t9SY
<% !J[! i"e
out.print("Hello, world!"); wI?AZd;`'
%> :VE0eJ]J6
);{76
K+`deH_d
MIXAL } wx(P3BHD
TERM EQU 19 the MIX console device number f<>CSjQ4c
ORIG 1000 start address fzUG1|$e
START OUT MSG(TERM) output data at address MSG Nb)Mh
HLT halt execution oG
c9
6B%
MSG ALF "MIXAL" "Rn@yZV
ALF " HELL" UQjYWXvi
ALF "O WOR" b?:?"
ALF "LD " G-'CjiMu
END START end of the program PsBLAr\ah
u24XuSe$
-m$2"_
Nuva .dj}y
jd]f
<..直接输出..> m`n#Q#6
Hello, world! o90[,
N'Vj& DWC
<..或者..> I7W?}bR*6
m,&2s-v
<. *S'?u_Y7
// 不带换行 h$p}/A
? "Hello, world!" oz7=1;r
qoEZ>
// 或者 .x1.` Y
=.qPjp_Qd
// 带换行 G$2Pny<!
?? 'Hello, world!' X39%O'
.> ,_@) IN
Uurpho_~
2\CZ"a#[
OCaml ]PB95%
let main () = 7Ac.^rv5
print_endline "Hello world!";; {dlG3P='`f
q><wzCnRu~
0O(V y y
Pascal (O/W`qo
program Hello; oSl}A,aQ(
begin G`f|#-}
writeln('Hello, world!'); cbW=kQc_
end. !ZY1AhGZ
@]L$eOV_
S";}gw?r6
Perl Eo@rrM:
#!/usr/local/bin/perl AR c
print "Hello, world!\n"; 3&R1C>JS ]
_~;K]
-i]2b
PHP ?8)k6:
<?php q[x|tO
print("Hello, world!"); *r ('A
?> 3dgPP@7d$
KON^
Rb0{W]opt+
Pike a..LbQQ
#!/usr/local/bin/pike KBA&s
int main() [-^xw1:
{ =-avzuy#
write("Hello, world!\n"); WfQZ7e
return 0; oo1h"[
} QN#tj$x
K14v6d
+9M";'\c
PL/I \b#`Ahf`
Test: procedure options(main); jVna;o)
declare My_String char(20) varying initialize('Hello, world!'); 7?8+h
put skip list(My_String); Ym2Ac>I4
end Test; q-S#[I+g
tO3#kV\,
/xd|mo)D
Prolog cDz^jC
goal C1OiM b(:
write("hello,world!"). @ ZN@EOM$+
+ijxv
2B+qS'OT
Python T%E/k#
)q
#!/usr/local/bin/python H%{k.#O
print "Hello, world!" :bkmm,%O
7_J0[C!G
}/jWa|)f
REXX gI/(hp3ob
say "Hello, world!" 6UU<:KH
0JW
=RW
u.}H)wt
Ruby j%gle%_
#!/usr/bin/ruby hb1eEn
print "Hello, world!\n" n^<J@uC
fM"&=X
:g{ybTSEe
Scheme 6cOlY=
bn
(display "Hello, world!") m14'u GC
(newline) <VhD>4f{]
BY@l:y4
Yi <1z:\
sed (需要至少一行输入) Rpj{!Ia
sed -ne '1s/.*/Hello, world!/p' N9~'\O$'7
x#hSN|'"
s\Ln
Smalltalk /Eu|Jg=I
Transcript show: 'Hello, world!' >uFFTik
p+-IvU
K1p. {
SNOBOL |<%v`*
OUTPUT = "Hello, world!" D#[<N
END }(K1=cEaL
wJu9.
|Z8Eu0RSb
SQL (IIZ vCek
create table MESSAGE (TEXT char(15)); `chD*@76I
insert into MESSAGE (TEXT) values ('Hello, world!'); =&m;5R
select TEXT from MESSAGE; [EK@f,iM
drop table MESSAGE; ER;\Aes*?
@Thrizh
Q'YakEv >=
Tcl r(rT.D&
#!/usr/local/bin/tcl BE!l{
puts "Hello, world!" SeLFubs_
T/:6Z
H(Y 1%@
TScript T=CJUla
? "Hello, world!" %eGI]!vf
?U
=Mdw
>?.jN|
Turing Lz!H@)-mr
put "Hello, world!" h+Y>\Cxg
EXR6Vb,
u(8dsgR
UNIX-style shell j.c{%UYj
程序中的/bin/sh可改为您使用的shell Uy?X-"UR
55=YM'5]
#!/bin/sh U|8?$/*\
echo 'Hello, world!' i?,\>LTG
Iu^I?c[
|W}D_2
GUI 0 c]]
`#l1
Delphi cv. j
program HelloWorld; m%c]+Our`
uses 5x!rT&!G
Dialogs; ):fu]s"
begin <v?2p{U%
ShowMessage('Hello, World!'); y2 R\SL,
end. H|/"'t
OZ
@.,'A[D!K
+wZ|g6vMct
Nuva =&~ K;=:
<. n*caP9B
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) V(Cxd.u
.> 2nCHL'8N
w|4CBll
4}Lui9
Visual Basic e}(8BF
MsgBox "Hello, world!" ,l.+$G
'或者 "G Jhx/zt
Print "Hello, world!" ! 6R|
k#Qjm9V
h?vny->uJ
Visual FoxPro <- R%
? "Hello, world!" 'C @yJf
=%|f-x
ZA}!Rzo
X11 i8%Z(@_`
用一个程序 <[=[|DS l
8C*xrg#g:
xmessage 'Hello, world!' *%%n9T
yM7FR);
用C++和gtkmm 2 "]q0|ZdOwH
z? GtC{L9
#include <iostream> 'a$/ !~X
#include <gtkmm/main.h> |)mUO:*
#include <gtkmm/button.h> M0hR]4T
#include <gtkmm/window.h> g!i45]6[Nw
using namespace std; Z%
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w^:@g~
class HelloWorld : public Gtk::Window }H/94]~tH
{ e0IGx]5i
public: QBA{*@ A-
HelloWorld(); Z{2QDjAI;
virtual ~HelloWorld(); ,+x\NY2d
protected: X @/X65=[
Gtk::Button m_button; ,V)hV@Dk
virtual void on_button_clicked(); 3wQ\L=
}; ;CuL1N#I
G]dHYxG
HelloWorld::HelloWorld() : m_button("Hello, world!") e~nh95
{ I<"UQ\)
set_border_width(10); 3f:]*U+O
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); '1d0
*5+6k
add(m_button); Hi U/fi`
m_button.show(); #v4^,$k>
} fT<3~Z>m
To-$)GQ@W
HelloWorld::~HelloWorld() {} #IeG/t(
\*pS4vy5x
void HelloWorld::on_button_clicked() ClufP6'
{ @P[%6 d
cout << "Hello, world!" << endl; F5{GMn;j
} rLbFaLeQ
B5_QH8kt7
int main (int argc, char *argv[]) ssmJ?sl
{ qj^A
Gtk::Main kit(argc, argv); cca]@Ox]
HelloWorld helloworld; ;a[3RqmKW
Gtk::Main::run(helloworld); 1yeD-M"w
} Djf~8q V!
Z*(OcQ-
bNoZ{ 7
Java gL1r"&^L
import java.awt.*; ObataUxQT
import java.awt.event.*; @?</8;%3W
2]r5e;
public class HelloFrame extends Frame TLg 9`UA
{ i,L"%q)C
HelloFrame(String title) L l,nt
{ 6K >(n
super(title); L>N)[;|
} R5 EC/@
public void paint(Graphics g) v4\
m9Pu4
{ Ey_mK\'
super.paint(g); S-brV\v7
java.awt.Insets ins = this.getInsets(); buHUBn[3)
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); !H @nAz
} YT@N$kOg_
public static void main(String args []) Mi`t$hmP
{ o
Y<vKs^
HelloFrame fr = new HelloFrame("Hello"); wD@ wOC
D~TK'&