“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。 ;:9 x.IkxC
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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》。 n37( sKG
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以下是用不同语言写成的Hello World程序的几个例子: SQ5*?u\
Ada }
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with Ada.Text_Io; use Ada.Text_Io; D2!ww{t
procedure Hello is mc(&'U8R0I
begin YQN=.Wtc
Put_Line ("Hello, world!"); J&a887
end Hello; o D*
'
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2%W(^Lj
汇编语言 s !8]CV>
nfDPM\FFD
x86 CPU,DOS,TASM CsSB'+&{
MODEL SMALL #K*d:W3C
IDEAL +d6E)~qKL
STACK 100H rP`\<}a.
u>S&?X'a
DATASEG ]NAPvw#p
HW DB 'Hello, world!$' GN1cnM>`
C
[2tH2*#
CODESEG wOi>i`D&
MOV AX, @data 5[gkGKkf_
MOV DS, AX ?o.G@-
MOV DX, OFFSET HW =,@SZsM*B
MOV AH, 09H jQ`"Op 3
INT 21H %q*U[vv
MOV AX, 4C00H nLtP^
1~9H
INT 21H cR5<.$aY
END KH
KqE6
&`TX4b^/!
=_yOX=g|
x86 CPU,GNU/Linux,NASM N%B#f\N
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). <O>Q;}>gfc
;Enter this into "hello.asm" then type: TVFGonVY
;"nasm -f elf hello.asm" %okEN!=
;"ld hello.o -o hello" sa#"@j)
;"./hello" NOS5bm&-
QHs]~Ja
section .data ;data section declaration 5h>
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msg db 'Hello World!',0AH %?wuKZLnc
len equ $-msg ;string length N{9<Tf *
6U/wFT!7$
section .text ;code section declaration a|7V{pp=M
global _start ;entry point (start of execution) +u=xBhZ
_start: mov edx,len ;string length ;C"J5RA
mov ecx,msg ;string start p-7dJ
mov ebx,1 ;file handle: stdout v}_$9&|S
mov eax,4 ;sys_write f8&=D4)-w
int 80h ;kernel system call ixS78KIr
D!mhR?t
mov ebx,0 ;return value 4_"ZSVq]#
mov eax,1 ;sys_exit B)-S@.u
int 80h ;kernel system call T]vD ,I+
'[-/Xa['
ttw@nv%
@
x86 CPU,Windows,MASM32 _?r+SRFn
.386 2d>PN^x
.model flat,stdcall 2hpx%H
option casemap:none u\E.H5u27
;Include 文件定义 16Xwtn72
include windows.inc ]Pd*w`R
include user32.inc 1OGlD+f
includelib user32.lib NfO0^^"
include kernel32.inc 3?geJlD4
includelib kernel32.lib ?B}>[
;数据段 u51/B:+
.data h NoN=J
szCaption db 'A MessageBox!',0 ^Ue.9#9T&g
szText db 'Hello,world!',0 Ci*5E$+\
;代码段 ~*[}O)7#
.code NPc%}V&C(u
start: pj )I4C)
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK I0ie3ESdN
invoke ExitProcess,NULL cu"%>>,,
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> m:41zoV
end start PLY7qMw
S77Gc:[;8
E+2y-B)E
AWK Z~nl{P#
BEGIN { print "Hello, world!" } };+s0:H
8r|LFuI
<^~F~]wnH
BASIC 5Ci}w|c/>
传统版BASIC(例如GWBASIC): zV&3l9?U
9e=*jRs]l^
10 PRINT "Hello, world!" PT4`1Oy}/1
20 END =['ijD4TW
UiSc*_N"
或在提示符输入: MJC
Yi<D
}"8_$VDcz
?"Hello, world!":END +\ySx^vi
bCrB'&^t
现代版BASIC(例如Quick BASIC): 2<O8=I _
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Print "Hello, world!" us cR/d
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以下的语句在Quick BASIC中同样有效: ~9c9@!RA2
aj,ZM,Ad
? "Hello,world!" C[pDPx,#:G
MQ+ek4
5R Hs
BCPL }Q=Zqlvz
GET "LIBHDR" _SaK]7}m!
a9I8WQ
LET START () BE {k*_'0
$( qa~[fORO[
WRITES ("Hello, world!*N") !eq]V9
$) ^
UzF
nW@a
8tL61x{]
L8G4K)
Befunge 4{?x(~
"!dlrow olleH">v tWiV0PTI
, bDo'hDmW
^_@ _"bx#B*
d5\1-d_uz
op*+fJHD
Brainfuck 'YG`/@n;
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< kT1lOP-Bg
+++++++++++++++.>.+++.------.--------.>+.>. VJ"3G;;
~<%cc+;`
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C yU.0'r5uR
#include <stdio.h> F"=MU8
,54<U~Lg:
int main(void) Wg%-m%7O
{ t>fB@xHBB
printf("Hello, world!\n"); {<2ZbN?
return 0; |$t0cd
} =gIYa
wj^I1;lO
"Pc,+>vh
C++ W24bO|>D
#include <iostream> ~roHnJ>
k +Oq$Pi
int main() {dwV-qz
{ r2th6hl~
std::cout << "Hello, world!" << std::endl; 2z\F m/Z.
return 0; s]iOC6v
} [UH5D~Yx
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CA4-&O"
C++/CLI o^?{j*)g
int main() WI6E3,ejB1
{ *ls6#j@
System::Console::WriteLine("Hello, world!"); Z@ kC28
} vt
N5{C
uFm-HR@4
"{_"NjH
C# (C Sharp) ^H4iHjg
class HelloWorldApp A 5 X+Z
{ 8j}m\^si
public static void Main() wM)w[
{ I[UA' ~f
System.Console.WriteLine("Hello, world!"); k%g xY% 0
} J[H?nX9
} r!^\Q7
F47n_JV!d
d_+8=nh3
COBOL hYn'uL^~[
IDENTIFICATION DIVISION. 6bNW1]rD
PROGRAM-ID. HELLO-WORLD. fn OkH
d_uy;-3
ENVIRONMENT DIVISION. ~ ""MeaM8[
q4i8Sp>
DATA DIVISION. j6vZ{Fx;w
`tG_O
PROCEDURE DIVISION. >U<nEnB$?
DISPLAY "Hello, world!". +c a296^
STOP RUN. -ZP&zOsDr
%g&,]=W\N
u;Eu<jU1
Common Lisp j/D)UWkR
(format t "Hello world!~%") RRqMwy>%
^P/D8cXa4
?(q*U!=
DOS批处理 rx>Tc#g
@echo off 4i/q^;`
echo "Hello, world!" 0>=)
#2jn4>
$
bNe0
Eiffel ]B3FTqR{i
class HELLO_WORLD vvAk<[
NP`s[
creation 15o.j!S
make W \}}gIEM+
feature 7;'.5,-3c
make is XDko{jEJ
local )8 :RiG2B
io:BASIC_IO xH_ie
do u)`|q_y+8
!!io N!B Oq`#da
io.put_string("%N Hello, world!") :ECK
$Cu
end -- make Q
*]`t@q
end -- class HELLO_WORLD ^HFU@/
2ZbY|8X$r
9c{%m4
Erlang `A'I/Hf5
-module(hello). v^W?o}W
-export([hello_world/0]). IIQ3|eZ
v*~%x
hello_world() -> io:fwrite("Hello, World!\n"). CY3 \:D0I
8[1DO1*P
sN1*Zp'(
Forth :F>L;mp
." Hello, world!" CR u45h{i-e
cm@ oun
U.Chf9a-
Fortran *OOa)P{^D
WRITE(*,10) .8qzU47E
10 FORMAT('Hello, World!') 5Vnr"d
STOP RO$@>vL
END (
ssH=a
1gShV ]2
o\ow{gh9
HTML y'!p>/%v
<HTML> Ot$cmBhw!
<HEAD> r(1pvcWY-
<TITLE> Hello World! </TITLE> 3cfZ!E~^kc
</HEAD> CESe}^)n
<BODY> Wytvs*\`
<p>Hello World!</p> EkStb#
</BODY> 3]`qnSYBv
</HTML> !|<f%UO
*K jVPs
im\YL<
HQ9+ a&s"#j
H QE#-A@c
( X
'FQ
B`Or#G3ph
INTERCAL 1s}``1>
PLEASE DO ,1 <- #13 =!S@tuY
DO ,1 SUB #1 <- #238 ADyNNMcx
DO ,1 SUB #2 <- #112 Tt <-<oyU.
DO ,1 SUB #3 <- #112 _WDBG
DO ,1 SUB #4 <- #0 0J:U\S
DO ,1 SUB #5 <- #64 <[3lV)~t
DO ,1 SUB #6 <- #238 UQ$\
an'
DO ,1 SUB #7 <- #26 ;%rs{XO9
DO ,1 SUB #8 <- #248 oX2DFgz
DO ,1 SUB #9 <- #168 lYZ@a4TA
DO ,1 SUB #10 <- #24 GrLM${G
DO ,1 SUB #11 <- #16 c(Uj'uLc
DO ,1 SUB #12 <- #158 *]:G7SW{
DO ,1 SUB #13 <- #52 +A'q#~yILa
PLEASE READ OUT ,1 Jl}!CE@-
PLEASE GIVE UP |,a%z-l
LTYuxZ
il IV}8
Java !QQ<Ai!E
public class Hello k\Z;Cmh>
{ neB.Wu~WH
public static void main(String[] args) +2V%'{:
{ \}u7T[R=`
System.out.println("Hello, world!"); Owh*KY:
} igRDt{}
} ^i`3cCFB<
E2q B:
z6FbM^;;
JSP Pa+AF
<% #"o6OEy$A#
out.print("Hello, world!"); f
$.\o
%> tv@Z5
>uyeI&z
(!_X:+0_
MIXAL r>@ B+Xi
TERM EQU 19 the MIX console device number P,$[|)[E
ORIG 1000 start address PtRj9TT
START OUT MSG(TERM) output data at address MSG 4[5lX C
HLT halt execution |~/3u/
MSG ALF "MIXAL" ^^4K/XBve
ALF " HELL" W;OYO
ALF "O WOR" Jm]]>K8.3V
ALF "LD " [.#p
END START end of the program f
gK2.;>
{p#l!P/
K)9j
je
Nuva taWirqd9
<..直接输出..> 8"?Vcw&
Hello, world! SgCqxFii
q(ZB.
<..或者..> RR~sEUCo{
w
L/p.@
<. k Z+ q
// 不带换行 45r]wT(C
? "Hello, world!" vu_>U({.
T
=A0"0D{\
// 或者 @sB}q 6>
Qb6QXjN
Q
// 带换行 (6ohrM>Q
?? 'Hello, world!' vk4C_8m
.> DJ1XNpm
b[{m>Fa+o#
DqurHQ z)m
OCaml Ad}-I%Ie
let main () = .^[fG59
print_endline "Hello world!";; Jo7fxWO_g
DU/9/ I?~
2_oK5*j
Pascal Zzw}sZ?8
program Hello; 5(iSOsb
begin IKMsY5i
writeln('Hello, world!'); AND7jEn
end. R\9>2*w
dT0^-XSY
vWqyZ-p,q
Perl vI
pO/m.3
#!/usr/local/bin/perl 3t"~F%4-}
print "Hello, world!\n";
nR,Qm=;
@ 7Q*h
RMS.1: O
PHP 3JlC/v#0
<?php T =eT^?v
print("Hello, world!"); ?VMi!-POE
?> 2|0Je^$|
;H7EB`
q5:0&:m$4$
Pike wo7N7R5
#!/usr/local/bin/pike AI^AK0.L
int main() oTq%wi6 _
{ ILkjz^
write("Hello, world!\n"); }
D/+<
return 0; ')AByD}Hi]
} _%A/ )
'\ph`Run
8_^'(]
PL/I uD.
Test: procedure options(main); $:%*gY4~76
declare My_String char(20) varying initialize('Hello, world!'); iN:G/ss4O
put skip list(My_String);
s0C?Bb}?
end Test; '`M#UuU
-{yDk$"
DHh+%|e
Prolog SBCL1aM
goal _/8_,9H
write("hello,world!"). |Q5H9<*
>VRo|o<D
g)=V#Bglv
Python 4'+d"Ok
#!/usr/local/bin/python T4V[RN
print "Hello, world!" 96.IuwL*.s
SjZd0H0
3gxf~$)?
REXX
~hS .\h
say "Hello, world!" K:}h\ In
vqrBRlZ
M*g2VyZ
Ruby $x;tSJ)m~
#!/usr/bin/ruby Nf=C?`L
print "Hello, world!\n" )x$!K[=
,3w I~j=
#rhVzN-?)W
Scheme 2LCc
(display "Hello, world!") Nbgp_:{
(newline) Q9`s_4
06PhrPVa!\
?,WUJH?^
sed (需要至少一行输入) &FL%H;Kfx
sed -ne '1s/.*/Hello, world!/p' k)$iK2I
IL!BPFG w
`y1BTe&
Smalltalk aj&\CJ
Transcript show: 'Hello, world!' @;||peU
`^O'V}T
hWe}'L-
SNOBOL y\[L?Rmd
OUTPUT = "Hello, world!" i0ILb/LS
END X tJswxw`K
^OHZ767v
'jh2**i 34
SQL zSEr4^Dk4
create table MESSAGE (TEXT char(15)); 8lMZ
insert into MESSAGE (TEXT) values ('Hello, world!'); l)}<#Ri
select TEXT from MESSAGE; /DLr(
drop table MESSAGE; 4qqF v?O[r
48lzOG
@; W<dJ<X
Tcl ceqFQ
#!/usr/local/bin/tcl E2>im>p
puts "Hello, world!"
$`^H:Djr
Zkw J.SuU
B#J{ F
TScript $`E4m8fX
? "Hello, world!" V78Mq:7d
x*:n4FZ7b
P1dN32H
o
Turing !?yxh/>lM
put "Hello, world!" ^%-NPo<
G=vN;e_$_b
g<M0|eX@~
UNIX-style shell eT;AAGql
程序中的/bin/sh可改为您使用的shell 1UC2zM"
6(:)otz
#!/bin/sh
*hV4[=
echo 'Hello, world!' 1oB$MQoc
fW(;
fwRGT|":B
GUI 0rV/qMo;K
1Pu
, :Jt
Delphi Q?Wr7
program HelloWorld; ,Yo: &>As
uses x<8\-
Dialogs; t9ER;.e
begin O ,l\e3;
ShowMessage('Hello, World!'); Z&TD+fT<
end. i"/ r)>"b
HS7R lU^
STv(kQs
Nuva \{kHSV%z
<. EH(tUwY%{
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) FSv1X
.> cS4xe(n8
1U
S<*' ;{5~
Visual Basic '=$TyiU
MsgBox "Hello, world!" MdLj,1_T
'或者 R j-jAH
Print "Hello, world!" m^z,,t9
/;+oz
5Lw{0uLr
Visual FoxPro D4d]3|/T
? "Hello, world!" *`%4loW
~M*7N@D
sb'lZFSP~s
X11 sbzeY1
用一个程序 9-B@GFB;8
D^N[=q99&e
xmessage 'Hello, world!' X@cSP7b
?b5H
2W
用C++和gtkmm 2 eVTO#R*'|
}&mj.hGv
#include <iostream> {798=pC<.
#include <gtkmm/main.h> AYt*'Zeg!s
#include <gtkmm/button.h> ]Uu
aN8
#include <gtkmm/window.h> b"^\)|*4;
using namespace std; Xp#~N_S$
/GyEV Cc
class HelloWorld : public Gtk::Window o94PI*.
{ D$ ej+s7
public: OqtQA#uL
HelloWorld(); )q^(T1
virtual ~HelloWorld(); 0Qt~K#mr/
protected: iW'_R{)T
Gtk::Button m_button; t~q?lT
virtual void on_button_clicked(); tO7I&LNE
}; m.!wsw
jBS'g{y-!
HelloWorld::HelloWorld() : m_button("Hello, world!") Ny]lvgu9X
{ r-*l1([eW
set_border_width(10); %S c=_%6
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); 1PmX."a
add(m_button); k2pT1QZnt
m_button.show(); :fhB*SYK
} *aI~W^N3
f7ZA837Un
HelloWorld::~HelloWorld() {} R#D#{cC(
Y!F!@`%G
void HelloWorld::on_button_clicked() 'bl%Y).9w
{ lz-
iCZ
cout << "Hello, world!" << endl; s88y{o
} 2g0K76=Co:
I-TlrW=t
int main (int argc, char *argv[]) <vL}l: r
{ (N7O+3+G
Gtk::Main kit(argc, argv); ve6x/ PD
HelloWorld helloworld; SijS5irfk
Gtk::Main::run(helloworld); $ND90my
}
|g+!
} +1'{B"I
sx:Hv1d
Java uQWp+}>ZJy
import java.awt.*; 4AuH1m)<
import java.awt.event.*; O hi D
+3)[>{~1Z
public class HelloFrame extends Frame QsM*wT&aa
{
A=0@UqM
HelloFrame(String title) Qd?CTYNsv
{ *l:&f_ngV
super(title); fwy"w
} Q4=|@|U0
public void paint(Graphics g) ;sCU[4
{ qZ&