“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。 [zBi*%5O
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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》。 p J_+n:_{
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以下是用不同语言写成的Hello World程序的几个例子: S
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Ada Pw| h`[h
with Ada.Text_Io; use Ada.Text_Io; nj0sh"~+
procedure Hello is
_XT'h;m
begin t/Y0e#9,
Put_Line ("Hello, world!"); l_/(J)|a
end Hello; ^ZO! (
Nf^<pT[*
a/\{NHs6"5
汇编语言 u -P !2vT
RYA@{.O
x86 CPU,DOS,TASM %0} ^M1
MODEL SMALL /zt M'
IDEAL zxx\jpBBk
STACK 100H BO#tn{(#
SF&2a(~s
DATASEG :^WF%X
HW DB 'Hello, world!$' G~o!u8^;
71\53Qr#U
CODESEG 3ZI7;Gw
MOV AX, @data njf\fw_
MOV DS, AX C<AW)|r_
MOV DX, OFFSET HW ;RJ
8h
x
MOV AH, 09H ?*yyne
INT 21H >xabn*Kq
MOV AX, 4C00H #kASy 2t
INT 21H _<LL@IX
END @U18Dj[
i4,p\rE0
BH1h2OEe#
x86 CPU,GNU/Linux,NASM / n_s"[I4
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). !}z'"l4i
;Enter this into "hello.asm" then type: Ac|\~w[\
;"nasm -f elf hello.asm" iW^J>aKy
;"ld hello.o -o hello" R8k4?_W?T
;"./hello" R__:~uv,
_0v+'&bz
section .data ;data section declaration sde>LZet/
msg db 'Hello World!',0AH K\rQb
len equ $-msg ;string length V-}}?c1 F
m<hP"j
section .text ;code section declaration KF00=HE|]
global _start ;entry point (start of execution) s91[@rh/
_start: mov edx,len ;string length -1,0hmn=+
mov ecx,msg ;string start /V:9*C
mov ebx,1 ;file handle: stdout I7oA7@zv
mov eax,4 ;sys_write ?}Z t&(#
int 80h ;kernel system call #M16qOEw
X8Q'*
mov ebx,0 ;return value LXK!4(xa W
mov eax,1 ;sys_exit WN+i 3hC
int 80h ;kernel system call !Fp %2gt|
u*G<?
a&x:_vv
x86 CPU,Windows,MASM32 <mE`<-$
.386 X n$ZA-
.model flat,stdcall R,G*]/r`
option casemap:none 9Q%lS
;Include 文件定义 s:}? rSI
include windows.inc x{SlJ%V
include user32.inc T:$^1"\
includelib user32.lib WJOoDS!i
include kernel32.inc (MI>7| ';
includelib kernel32.lib ~2"hh$
;数据段 h<U?WtWT-p
.data +T$Olz
szCaption db 'A MessageBox!',0 Q!;syJBb.
szText db 'Hello,world!',0 1j$\ 48Z
;代码段 xKG7d8=
.code );h(D!D,
start: ^obuMQ;
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK 9p qsr~
invoke ExitProcess,NULL V_gl#e#
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> b<00 %Z
end start Bzrnmz5S
:J`@@H
Wr%ov6:
AWK E7fQ9]
BEGIN { print "Hello, world!" } I_<XL<
e4tIO
MqnUym
BASIC fz=?QEG
传统版BASIC(例如GWBASIC): {siOa%;*
e{5?+6KH
10 PRINT "Hello, world!" [j+:2@
20 END jr4xh{Z`
:3n@].
或在提示符输入: JcR|{9ghT
xmv%O&0^}
?"Hello, world!":END LpU}.
HU $"o6ap
现代版BASIC(例如Quick BASIC): .J)TIc__|A
T;/GHC`{Y
Print "Hello, world!" `FMo;,j
?8-!hU@QC
以下的语句在Quick BASIC中同样有效: b&U1^{(
'`P%;/z
? "Hello,world!" XMuZ}u[U
hy*{{f;
D*%am|QL
BCPL eWcqf/4?"
GET "LIBHDR" b#
N"}-\^
jmID@37t
LET START () BE X_TjJmc
$( 0SIC=p=J
WRITES ("Hello, world!*N") 2!^=G=H/
$) ! I@w3`
&:&89<C'
?bB>}:~j)
Befunge `I5^zi8
"!dlrow olleH">v =%X."i1A
, hpAdoy[
^_@ $N=&D_Q
9GD0jJEu
fwFJe(.
Brainfuck xol%\$|
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< <k:I2LF_
+++++++++++++++.>.+++.------.--------.>+.>. I\.|\^
DXLXGvcM
:<qe2Z5k
C $Z@*!B^
#include <stdio.h> ?G,4N<]Nu
>!=@TK(~
int main(void) G]'ah1W
{ Hb=#`
printf("Hello, world!\n"); jSY[Y:6md
return 0; :jiuu@<
} qVn<c,8#
nje7?Vz
,n/]ALz>~
C++
,&hv x
#include <iostream> kamQZzPe
)d2Z g
int main() SyvoN,;Q
{ PM\Ju]
std::cout << "Hello, world!" << std::endl; l_^OdQ9D
return 0; =0)|psCsM
} ]@&X*~c^Z
h6h6B.\Ld
Ei4^__g\'
C++/CLI =}`d
int main() ic2D$`M
{ Je6[q
System::Console::WriteLine("Hello, world!"); 2Vx4"fHP#N
} A[Mke
t?GH
V3V
Z1
D
C# (C Sharp) <Vhd4c
class HelloWorldApp G^c,i5}w
{ W0gS>L_
public static void Main() I=0c\ U}
{ VE )D4RL
System.Console.WriteLine("Hello, world!"); Unk/uk
} Q|(}rIWOQA
} s6 yvq#:
T2e-RR
C%o|}i v"
COBOL mU/o%|h
IDENTIFICATION DIVISION. T~[:oil
PROGRAM-ID. HELLO-WORLD. hFIh<m=C?Y
7Jn%XxHq
ENVIRONMENT DIVISION. ]Z!Y*v
6 4_}"fU
DATA DIVISION. V?{d<Ng~J
rqamBm 5
PROCEDURE DIVISION. Q0xO;20
DISPLAY "Hello, world!". t+?Bb7p,H
STOP RUN. P7drUiX
$plk>Khg
f;e#7_
Common Lisp FuHBzBoM=
(format t "Hello world!~%") %ih\|jRt
>]h{[kU %4
51k}LH
DOS批处理 ;+ hh|NiQ
@echo off Bz]tKJ
echo "Hello, world!" )4g_S?l=
*rq*li;
c^r8<KlI9
Eiffel a~_9BM41T
class HELLO_WORLD HMq}){=S
[DaAvN^0A
creation zj`c%9N+
make ^#_gk uyd!
feature N^;lp<{6?
make is HWjJ.;k}a
local iXWHI3
io:BASIC_IO uKJ:)oyaCP
do 4$Ai!a
!!io q<09]i
io.put_string("%N Hello, world!") SyL"Bmi
end -- make jX7K-L
end -- class HELLO_WORLD #
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KXPCkNIN!
6N@=*0kh-
Erlang *l_a=[<[
-module(hello). )PN8HJAArh
-export([hello_world/0]). K?l|1jez(#
ZdW+=;/#
hello_world() -> io:fwrite("Hello, World!\n"). /$; Z ~^P
K$S0h-?9]O
M^kaik
Forth Za@\=}Tt
." Hello, world!" CR f.g!~wGD
0LQRQuh1
#}~tTL
Fortran } 9@rhW
WRITE(*,10) q`e0%^U
10 FORMAT('Hello, World!') kepuh%KY[
STOP ) 57'<
END x^y$ pr
khX/xL
st w@@GQ
HTML 01n!T2;yW}
<HTML> D^r g-E[L
<HEAD> Z!v,;MW
<TITLE> Hello World! </TITLE> Sm/8VSY
</HEAD> BbB3#/g
<BODY> Hca(2 ]T-
<p>Hello World!</p> !{&r|6
</BODY> uI,*&bP
</HTML> K'&,]r#
fN9{@)2Mz
/E6)>y66
HQ9+ UC&$8^
H Q4mtfpiDx
dX?j/M-
G]B0LUT6c
INTERCAL ev&l=(hY
PLEASE DO ,1 <- #13 ]D6<6OB
DO ,1 SUB #1 <- #238 kHK<~srB
DO ,1 SUB #2 <- #112 }wf8y
DO ,1 SUB #3 <- #112 sX?arI=_U
DO ,1 SUB #4 <- #0 S1r{2s&
DO ,1 SUB #5 <- #64 '&CZ%&(Gw
DO ,1 SUB #6 <- #238 br\3}
DO ,1 SUB #7 <- #26 N<#J!0w
DO ,1 SUB #8 <- #248 k7Nx#%xx
DO ,1 SUB #9 <- #168 4W>DW`{
DO ,1 SUB #10 <- #24 LsR<r1KDJ
DO ,1 SUB #11 <- #16 l&H-<Z.8m
DO ,1 SUB #12 <- #158 {A}T^q!m]
DO ,1 SUB #13 <- #52 .r/s.g
PLEASE READ OUT ,1 (s'xO~p
PLEASE GIVE UP `
k]
TOc
&tOo[U?
yK{P%oh)
Java RlfI]uCDM
public class Hello X}[1Y3~y
{ uNf'Zeo
public static void main(String[] args) Nr@,In|JS
{ rT="ciQ
System.out.println("Hello, world!"); ,IiKe_B
} u&y> '
} &Hw:65O
^aaj=p:cV
*42KLns
JSP {:cGt2*~^
<% $(&uaDYv
out.print("Hello, world!"); Z{3=.z{&^=
%> y95
#t
TrDTay
J#d,?
MIXAL .UxkTads
TERM EQU 19 the MIX console device number y1`%3\
ORIG 1000 start address T3b0"o27
START OUT MSG(TERM) output data at address MSG 3B#fnj
HLT halt execution o=VZ7]
MSG ALF "MIXAL" ZZi9<g1
ALF " HELL" E.#JCO|(1
ALF "O WOR" 1mV
'
~W
ALF "LD " X'd\b}Bm
END START end of the program D*L@I@
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",YNphjAn
qLBQ!>lR
Nuva 8Ogg(uS70'
<..直接输出..> T c-fO
/0
Hello, world! kU:Q&[/jzH
covCa )kf
<..或者..> P'$2%P$8:~
%4VM"C4[
<. tli*3YIw
// 不带换行 s2sJJdN
? "Hello, world!" ,ig`'U
E=.J*7
// 或者 +) 9=bB
CS%ut-K<5M
// 带换行 ZrYRLg
?? 'Hello, world!' H(
LK}[
.> dnANlNMk?
uvDOTRf
*o=Z~U9z
OCaml o<|u4r={s
let main () = T&dc)t`o
print_endline "Hello world!";; C
B;j[.
KjA7x
nJH'^rO!C
Pascal :t;\`gQoS
program Hello; 6/a%%1c1
begin w&U28"i>
writeln('Hello, world!'); :hHKm|1FE
end. UeUOGf ,
Na\&}GSf^
Xk^<}Ep)c
Perl "97sH_
,
#!/usr/local/bin/perl BAqwYWdS
print "Hello, world!\n"; R]Fa?uQW
QIwO _[Q
s$^ 2Cuhv
PHP GWx?RIKF
<?php <{V{2V#
print("Hello, world!"); _)CCD33$
?> dn5t7D^x
p3%cb?G%w
@&h_+|:-
Pike Q{hK+z`D
#!/usr/local/bin/pike G$`hPNSh
int main() $9@Z\0
{ lz).=N}m
write("Hello, world!\n"); *E@as
return 0; V2Z^W^
} +5ql`C
nCldH|>5w
CJ;D&qo
PL/I uL-$^],
Test: procedure options(main); f]+.
i-c=
declare My_String char(20) varying initialize('Hello, world!'); LNgFk%EH
put skip list(My_String); @M*5q# s
end Test; ,|O|gh$s
en MHKN g
Zf)<)o*
Prolog <.|]%7
goal -P]onD
write("hello,world!"). NS4W!o;"
T.!.3B$@]
: 2L-Nf
Python `?N|{kb
#!/usr/local/bin/python P\X$fD
print "Hello, world!" _hB7;N3
r^d:Po
AQ-R^kT
REXX O sIvW'$\
say "Hello, world!" !O,`Z`T?
gA+@p'XnR
Jl)Q#
Ruby 5X`m.lhUc
#!/usr/bin/ruby cTJG1'm
print "Hello, world!\n" ^O5PcV 3Eg
EU7mP
MxJ
w3Qil[rg
Scheme h*NBSvn
(display "Hello, world!") X{5(i3?S
(newline) #w[Ie+
\T!tUd
S#D6mg$Z,
sed (需要至少一行输入) g<4@5OQKu
sed -ne '1s/.*/Hello, world!/p' dqL)q 3
i;<H^\%
yzCamm4~0
Smalltalk o
3 G*
Transcript show: 'Hello, world!' ;#2yF34gv
ma2-66M~j
^^*dHWHn<
SNOBOL ID=^497
OUTPUT = "Hello, world!" ^paM{'J\\)
END /9u12R*<
\g;-q9g;O
[M.!7+$o
SQL XuW>GT/
create table MESSAGE (TEXT char(15)); Pu]Pp`SP
insert into MESSAGE (TEXT) values ('Hello, world!'); n ^C"v6X
select TEXT from MESSAGE; _E[)_yH'-
drop table MESSAGE; z`@|v~i0`
`oH6'+fT`;
&FzZpH
Tcl #.W<[KZf
#!/usr/local/bin/tcl 8<g9 ~L
puts "Hello, world!" ,dk!hm u
tsTCZ);(
=qTmFszT
TScript dxeLu
? "Hello, world!" >uDE<MUC
Bt-2S,c,o
zC\L-i>G
Turing !.5,RIf
put "Hello, world!" F| O
I.}E#f/A'
eN]9=Y~-K
UNIX-style shell LZ*ZXFIg
程序中的/bin/sh可改为您使用的shell 64-;| k4F
p# (5
;
#!/bin/sh h>'Mh;+
echo 'Hello, world!' 6<C|O-
_QOZ`st
]EPFyVt~3
GUI nx'D&,VX
-]~vEfq+T
Delphi uY|-: =
program HelloWorld; =ET |h}I
uses PzDekyl
Dialogs; !@kwHJkv
begin wtnC^d$
ShowMessage('Hello, World!'); Bgj^n{9x
end. <MBpV^Y}
-eoXaP{[
).1F0T
Nuva P>i[X0UnL
<. YeCS`IXm
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) :HQQ8uQfb
.> %Y// }
ify}xv
z#elwL6
Visual Basic 0_faJjTbP;
MsgBox "Hello, world!" <mdHca
'或者 [oh0 )wzB
Print "Hello, world!" u3ns-e
#Z]l4d3{T
Gg=Y}S7:
Visual FoxPro yJAz#~PO/
? "Hello, world!" ?B~S4:9
gG6j>%y
o\;cXuh
X11 v46 5Z
用一个程序 [GqQ6\
iSg^np
xmessage 'Hello, world!' KN-)m ta&
wz=c#}0dB
用C++和gtkmm 2 $@(+"
$
7$u}uv`j
#include <iostream> %d#h<e|,.
#include <gtkmm/main.h> -kz9KGkPb+
#include <gtkmm/button.h> U}2b{
#include <gtkmm/window.h> %^CoWbU
using namespace std; -'mTSJ.}
I8:A]
class HelloWorld : public Gtk::Window ruQ1Cph
{ RO+N>Wkt
public: HJeZm
HelloWorld(); Gm2q`ki
virtual ~HelloWorld(); w[X/|O
protected: qmx4hs8sh
Gtk::Button m_button; s/0S]P]}f
virtual void on_button_clicked(); W2F *+M
}; #XPY\n^k
7dbGUbT
HelloWorld::HelloWorld() : m_button("Hello, world!") <UC_QPA\
{ {WoS&eL
set_border_width(10); NP^j5|A*"
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); Oq3]ZUVa
add(m_button); 51&K
m_button.show(); 78fFAN`
} \&Zp/;n
--chU5
HelloWorld::~HelloWorld() {} +1o4l i
T>2_ r6;
void HelloWorld::on_button_clicked() #%$U-ti
{ kI|7o>}<
cout << "Hello, world!" << endl; /pS Y ~*
} +#V.6i
r?j2%M\
int main (int argc, char *argv[]) &<RK=e'*x
{ r(VznKSx
Gtk::Main kit(argc, argv); >j$y@"+
HelloWorld helloworld; "|KhqV=?v
Gtk::Main::run(helloworld); (AI
4a+
} g`9`/
z+(V2?xcvt
J70r`
Java .L#U^H|
import java.awt.*; iVe"iH
import java.awt.event.*; ?|NMJQsa7
GI _.[
public class HelloFrame extends Frame }s++^uX6
{ 6I!B>V#U+
HelloFrame(String title) g/f^|:
{ O-jpS?@
super(title); 3JJEj1O
} @zGz8IF
public void paint(Graphics g) UHT2a9rG
{ O=E?m=FR"
super.paint(g); ,z0~VS:g 8
java.awt.Insets ins = this.getInsets(); wFX>y^ 1
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); mx3p/p
} ZD;1{
public static void main(String args []) /c:78@
{ J=sj+:GS
HelloFrame fr = new HelloFrame("Hello"); _ ,~D]JYE
mo()l8
fr.addWindowListener( /fDXO;tN
new WindowAdapter() f~?4
{ ')#!M\1,HQ
public void windowClosing(WindowEvent e) xh`4s
{ nc/F@HCB
System.exit( 0 ); =jIP29+
} eOU v#F
} (29BS(|!
); 6[~_;0
fr.setResizable(true); fIwG9cR
fr.setSize(500, 100); *mtS\J
fr.setVisible(true); 3 =-XA2zJ
} ]r.95|V*
} wMvAm%}+
#)b0&wyW6i
~lH_d[
Java Applet :-)H
ty zf
Java Applet用于HTML文件。 'M!* Ge
;@$v_i
HTML代码: ; &i