“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。 <v -YMk@
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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》。 &':C"_|&r
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以下是用不同语言写成的Hello World程序的几个例子: iupkb
Ada MQw}R7
with Ada.Text_Io; use Ada.Text_Io; %+Nng<_U\T
procedure Hello is 64U|]gd$
begin !?ZR_=Y%
Put_Line ("Hello, world!"); ?+d{Rh)y
end Hello; |LC"1 k
8k:^( kByF
!$1qnsz
汇编语言 <h9nt4F
baG_7>Q9H
x86 CPU,DOS,TASM .up[wt gN
MODEL SMALL U'F}k0h?\'
IDEAL dO2?&f
STACK 100H <S7SH-{_\
j$_?g!I=gK
DATASEG {"~[F 2qR
HW DB 'Hello, world!$' K:<Viz
=TEe:%mN
CODESEG :35h0;8+
MOV AX, @data @a]cI
MOV DS, AX IxUj(l1Fm
MOV DX, OFFSET HW 9Cd/SlNV2
MOV AH, 09H BQWgL
INT 21H KxKZC}4m
MOV AX, 4C00H N{g7
INT 21H ,m`&J?
END \i,H1a
GFPrK9T
\H>T[
x86 CPU,GNU/Linux,NASM ,_(=w.F
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ~cp=B>*(
;Enter this into "hello.asm" then type: 3xW:"
;"nasm -f elf hello.asm" T'7>4MT(
;"ld hello.o -o hello" \9p.I?=
;"./hello" [I%eRo[
W^^0Rh_
section .data ;data section declaration g,WTXRy
msg db 'Hello World!',0AH T2]8w1l&K
len equ $-msg ;string length .?g=mh79(
ku*k+4rz
section .text ;code section declaration qk'&:A
global _start ;entry point (start of execution) Y1r'\@L w
_start: mov edx,len ;string length vA:ZR=)F
mov ecx,msg ;string start ec#`9w$
mov ebx,1 ;file handle: stdout gh[q*%#
mov eax,4 ;sys_write 3O*iv{-&
int 80h ;kernel system call *>qc6d@'
Z;~%!
mov ebx,0 ;return value viU}
mov eax,1 ;sys_exit GjW(&p$&
int 80h ;kernel system call S6bYd`
cu5}(
WLU_t65
x86 CPU,Windows,MASM32 Rh6CV
.386 11QZ- ^
.model flat,stdcall "'``O~08/
option casemap:none |b='DJz2
;Include 文件定义 bt1bTo
include windows.inc L=Aj+
include user32.inc ]g9SUFM
includelib user32.lib BR@gJ(2
include kernel32.inc LC=M{\
includelib kernel32.lib
K%%Ow
;数据段 3`SH-"{j%
.data %jj-\Gz!
szCaption db 'A MessageBox!',0 )ZLj2H <
szText db 'Hello,world!',0 g$ )0E<
;代码段 _+)OL-
.code &,p6lbP
start: K($+ILZ
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK g8Y)90 G
invoke ExitProcess,NULL 6w3[PNd
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 3_;=y\F
end start `xv Uq\
>J;J&]Olf
RjP]8tH&
AWK !}P^O(oY
BEGIN { print "Hello, world!" } [m< jM[w{
[W[awGf
aW|=|K
BASIC EqD@o
传统版BASIC(例如GWBASIC): "S{GjOlEDF
g1F9IB42@<
10 PRINT "Hello, world!" nw*a?$S3
20 END {s*1QBM$\Z
~a7@O^q4
或在提示符输入: 4$2HO`@uN
T^d<vH
?"Hello, world!":END K\ pZ
A9Ea}v9:
现代版BASIC(例如Quick BASIC): |iSwG=&
2XBHo (
Print "Hello, world!" v%`k*n':
E<B/5g!
以下的语句在Quick BASIC中同样有效: m#Z9wf] F
(mi=I3A(
? "Hello,world!" lv.h?"Ml
15|gG<-
"3 2Ua3m:G
BCPL WQw11uMt@q
GET "LIBHDR" r#ADxqkaV
qS}{O0
LET START () BE 1$}Tn
$( ]x& R=)P
WRITES ("Hello, world!*N") I`@>v%0
$) H_Hr=_8}-
&kWT<*;J)
NV}fcZ
Befunge GmUm?A@B
"!dlrow olleH">v kp?_ir
, t]3:vp5N]
^_@ +m}D.u*cp
l'!_km0{d
FDGzh/
Brainfuck XI ><;#
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< Bz,Xg-k+
+++++++++++++++.>.+++.------.--------.>+.>. Y>nQ<
4|jPr J
4rCw#mVtB
C |l|$Q;
#include <stdio.h> ow,! 7|m
NQ '|M
int main(void) w1F)R^tU
{ |t$%kpp
printf("Hello, world!\n"); [8DPZU@
return 0; - sq=|
} (S=CxK
ffOV7Dxy
^'sy hI\
C++ gz:US77
#include <iostream> {c
$8?6
FhEfW7]0,
int main() M6Ik 'r"M
{ |D;I>O^"R
std::cout << "Hello, world!" << std::endl; : 9>U+)%
return 0; =.`e4}u \X
} W$D:mw7
6_w~#86=
UY\E uA9
C++/CLI +OInf_O
int main() loyhNT=
{ a|dn3R>vX
System::Console::WriteLine("Hello, world!"); &$pQ Jf
} Ni;jMc
EUPc+D3
e/)Vx'd`+
C# (C Sharp) 1B{u4w7S4e
class HelloWorldApp 7;#o?6!7
{ M;.:YkrUH
public static void Main() o8A(Cg}
{ ? a*yK8S
System.Console.WriteLine("Hello, world!"); K[-G2
} ZoqE,ucH
} 1R.6Xer
@zsqjm
_ ^0UK|[
COBOL }f6_7W%5
IDENTIFICATION DIVISION. UQT=URS
PROGRAM-ID. HELLO-WORLD. B1U7z1<
~#rmw6y
ENVIRONMENT DIVISION. s%zdP
phcYQqR
DATA DIVISION. +=L^h9F
baR*4{]
PROCEDURE DIVISION. 0*/[z~Z-1
DISPLAY "Hello, world!". n8) eC2A
STOP RUN. ?ieC>cr
Gd[:&h
{@X)=.Zf
Common Lisp K3J,f2Cn$
(format t "Hello world!~%") 5mI}IS|@
t "[2^2G
Ij7[2V]c
DOS批处理 E$5A
1
@echo off S),acc(d
echo "Hello, world!" @t#Ju1Y
-h&KC{Xab
_Qf310oONS
Eiffel 1n>(CwLG"
class HELLO_WORLD U{&gV~
_VLA2#V>
creation *)qxrBc0
make /V E|F Ts
feature 5}'W8gV?
make is z7]GZF
local Jw
-3G3h
io:BASIC_IO GsNZr=;C
do a~Y`N73/c
!!io mqoB]H,
io.put_string("%N Hello, world!") =a_ >")
end -- make t|}}#Z!I[f
end -- class HELLO_WORLD }Gh95HwE
j4]y(AA
9 EV. ![
Erlang C.?~D*Q
-module(hello). y3@5~ 4+
-export([hello_world/0]). rc7^~S]5
3V0^v
hello_world() -> io:fwrite("Hello, World!\n"). C5EaP%s
h%>yErs
[ih^VlZ
Forth vW`[CEm^X
." Hello, world!" CR 9 kLA57
<4%vl+qW
D[p`1$E-1v
Fortran aJ$({ZN\#
WRITE(*,10) %<^j=K= 0
10 FORMAT('Hello, World!') kuW^_BROJ
STOP RZqou|ki
END 3?bTs =
^.@F1k
Eanwk` Rx
HTML ^W,~
<HTML> ~Nn}FNe
<HEAD> *apkw5B}C
<TITLE> Hello World! </TITLE> Ex@o&j\93
</HEAD> &ZI-#(P
<BODY> J)P7QTC
<p>Hello World!</p> ;_p!20.(
</BODY> b>L?0p$ej
</HTML> cSYMnB
:*WiswMFm
9G^gI}bY
HQ9+ 9i+`,r
H |Ju d*z
y1 a1UiHGP
#N;McF;W
INTERCAL I9*BTT]
PLEASE DO ,1 <- #13 cr ~.],$Om
DO ,1 SUB #1 <- #238 %'.3t|zH
DO ,1 SUB #2 <- #112 /n1L},67h
DO ,1 SUB #3 <- #112 W}@IUCRs
DO ,1 SUB #4 <- #0 ~9n30j%]s
DO ,1 SUB #5 <- #64 1x^Vv;K
DO ,1 SUB #6 <- #238 5Kw?#
DO ,1 SUB #7 <- #26 [I`:%y
DO ,1 SUB #8 <- #248 <"{VVyK
DO ,1 SUB #9 <- #168 T}59m;I
DO ,1 SUB #10 <- #24 in `|.#
DO ,1 SUB #11 <- #16 aATNeAR
DO ,1 SUB #12 <- #158 "<&) G{
DO ,1 SUB #13 <- #52 +`uNO<$~f
PLEASE READ OUT ,1 HYl~)O>
PLEASE GIVE UP zJov*^T-C
i(>
WeC+
UT0}Ce>e
Java WV}HN
public class Hello fNz(z\
{ ehTv@2b
public static void main(String[] args) {@hJPK8
{ m"!Q5[
System.out.println("Hello, world!"); Vllxv6/_
} Yz#E0aTTA
} ik1asj1
!6,rN_a@Y
Wg,7k9I
JSP 8*Ty`G&v
<% S_?sJwM
out.print("Hello, world!"); Po*!eD
%> & H8 %
3n~O&{
qiH)J-
~GZ
MIXAL J&&)%&h'I
TERM EQU 19 the MIX console device number }42Hhu7j
ORIG 1000 start address E;wT4 T=
START OUT MSG(TERM) output data at address MSG ZsSW{ffZ77
HLT halt execution FmSE]et
MSG ALF "MIXAL" 2#/23(Wc
ALF " HELL" #x`K4f)
ALF "O WOR" |AS~sjWSJ
ALF "LD " ae" o|Q
END START end of the program A]ZQ?-L/
LW k/h1
W8F@nY
Nuva sR/y|
<..直接输出..> $9P=
Hello, world! 5)A[NTNJx
&j,#5f(
<..或者..> cg_ " }]Y1
d"L(eI}G
<. (4?^X
// 不带换行 e=3C*+lq\
? "Hello, world!" ?d+ri
[5tvdW6Z&
// 或者 A1r%cs
%J Jp/I
// 带换行 `vz7}TY
?? 'Hello, world!' R+z'6&/ =I
.> gu:vf/
Y>atJ
|=07n K2
OCaml O(VWJ@EHn
let main () = (H"{r
print_endline "Hello world!";; :,fT^izew
v|KIVBkbT
&xA>(|a\&-
Pascal Xu
E' %;:
program Hello; p3Ozfk
begin W?"l6s
writeln('Hello, world!'); _>BYUPY
end. #!E`%'
s]
dm]g:KWg
pL!,1D!
Perl (P;TM1k
#!/usr/local/bin/perl `JY+3d,Ui
print "Hello, world!\n"; }V*?~.R
zA}JVB
[VqiF~o,
PHP ."gq[0_YS
<?php ]uF7HX7F
print("Hello, world!"); $${3I4
?> cvo+{u$s
v#d(Kj
ij#v_~g3
Pike B8?9L8M}
#!/usr/local/bin/pike |d-x2M[
int main() Ph%ylS/T{
{ 6rj iZ%
write("Hello, world!\n"); )">#bu$
return 0; DU8\1(
} r]&sXKDc
G6qZ>-GiL
5z9hcQAS
PL/I 1LSJy*yY
Test: procedure options(main); maHz3:
declare My_String char(20) varying initialize('Hello, world!'); qo7<g*kf~
put skip list(My_String); )B+o
F7
end Test; W1<*9O
n0gjcDHQ
0^Vw^]w
Prolog rp
dv{CUp7
goal SmD#hE[
write("hello,world!"). $xdo=4;|
re/u3\S
_Dqi#0#40p
Python /m;Bwu
#!/usr/local/bin/python QxaMe8(
print "Hello, world!" sk<S`J,M/_
s.rQiD
":
BZZ\!
REXX )quQI)Ym
say "Hello, world!" ==?%]ZE8
o6|-
:u5_/
COm^ti-p
Ruby qi7*Jjk>90
#!/usr/bin/ruby ewN|">WXQ
print "Hello, world!\n" LgX2KU"
@
N'P?i
.@+M6K*
Scheme ~N;
dX[@BT
(display "Hello, world!") Fw(
(newline) eYoc(bG(+
0vDvp`ie#4
roAHkI
sed (需要至少一行输入) 2B6u)
95
sed -ne '1s/.*/Hello, world!/p' *^7^g!=z2
%
q!i
]e5aHpgR=
Smalltalk ~H?v L c;>
Transcript show: 'Hello, world!' #P z'-lo
CE
muF&t'k
SNOBOL
:jkPV%!~
OUTPUT = "Hello, world!" !,Gavt7f
END k5tyOk
rfQs
7S;G
g0a!auWM
SQL WuF\{bUh
create table MESSAGE (TEXT char(15)); K*'AjT9wX+
insert into MESSAGE (TEXT) values ('Hello, world!'); zK1\InP
select TEXT from MESSAGE; KYKF$@
<G
drop table MESSAGE; knHrMD;
^iWGGnGS
j!Ys/D
Tcl K)`R?CZ:s
#!/usr/local/bin/tcl rk,64(
puts "Hello, world!" /i Xl]<
&.z-itiV
F/p1?1M
TScript >tL"8@z9
? "Hello, world!" R*LPwJuv
{/?{UbU
HP 3%CB
Turing ]>sMu]biH
put "Hello, world!" w8>bct3@
e2;=OoBK
UQ^
)t
]
UNIX-style shell >/@Q7V99{
程序中的/bin/sh可改为您使用的shell G~*R6x2g
[czWUD
#!/bin/sh X88I|Z'HIh
echo 'Hello, world!' Cd p_niF
{Y]3t9!\
{=R
vFA
GUI B]7QOf"
"6?Y$y/wm
Delphi t`\l+L
program HelloWorld; MI8c>5?
uses S |@
Y !
Dialogs; )s 1
Ei9J
begin Dp@m"_1`+
ShowMessage('Hello, World!'); CFY4PuI"!
end. }LZz"b<aw
:KRe==/
Rg~[X5
Nuva .8|5;!`WB
<. O,I7M?dRf
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) _8z
.> DB] ]6
\ $9n
`
kRz qgVr%
Visual Basic % o0.8qVJi
MsgBox "Hello, world!" O}Do4>02
'或者 jin?;v
Print "Hello, world!" G{|FV
m
+G!;:o
SY2((!n._
Visual FoxPro !un_JZD
? "Hello, world!" umiD2BRZ
l)1ySX&BU
_P]k6z+
X11 B;L^!sLP
用一个程序 W}oAgUd
%5bN@XD
xmessage 'Hello, world!' &T-udgR9
|fm"{$u
用C++和gtkmm 2 AyZBH&}RZ
d4-cZw}+
#include <iostream> #1f8A5<
#include <gtkmm/main.h> s^AZ)k~J(
#include <gtkmm/button.h> noNL.%I
#include <gtkmm/window.h> #EU x1II
using namespace std; ,b8B)VZ?
b;sjw5cm_
class HelloWorld : public Gtk::Window IqONDdep9
{ ?x
&"EhA>
public: C0Ti9
HelloWorld(); [ 5kaF"
virtual ~HelloWorld(); mh`VZQ@
protected: [mk!]r
Gtk::Button m_button; w-MnJ(r
virtual void on_button_clicked(); K29KS)~;W
}; %7rWebd-
;H8A"$%n~
HelloWorld::HelloWorld() : m_button("Hello, world!") kQm\;[R
{ (@?PN+68|
set_border_width(10); v0} .!u>Ww
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); tpi63<N
add(m_button); 21U,!
m_button.show(); /CN^">|_
} C"ZCX6p+$
yN~: 3
HelloWorld::~HelloWorld() {} 0$l D
1)M>vdrP
void HelloWorld::on_button_clicked() aOj5b>>
{ U(=cGA.$
cout << "Hello, world!" << endl; x3my8'h@
} %+9Mr ami
BY$%gIB6>
int main (int argc, char *argv[]) N*My2t_+E
{
D|n`9yv a
Gtk::Main kit(argc, argv); vf(\?Js,
HelloWorld helloworld; &`63"^y
Gtk::Main::run(helloworld); /5_!Y>W
} p]#%e0
S-:l
60.
eW+z@\d9Gz
Java }45&s9m=
import java.awt.*; @$;"nVZ4v
import java.awt.event.*; W 6~B~L
|k> _
jO
public class HelloFrame extends Frame pFD L5
{ b07 MTDFH7
HelloFrame(String title) K$\]\qG6
{
>kK
super(title); %Ow,.+m
} y:Qo:Z~
public void paint(Graphics g) jO$3>q
{ bY;ah;<
super.paint(g); FbHk6(/)
java.awt.Insets ins = this.getInsets(); fXBA
P10#
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); >t
O(S
} h4S,(*V$!
public static void main(String args []) SUfl`\O
{ Yt7R[|
HelloFrame fr = new HelloFrame("Hello"); m>? OjA!
pl V]hu27K
fr.addWindowListener( =g$%.
new WindowAdapter() ' Ky5|4
{ hO@'WoniW
public void windowClosing(WindowEvent e) p^A9iieHp=
{ sUcx;<|BC
System.exit( 0 ); *<zfe.
} ZPY#<^WOzr
} c
Q|nL
); ;+`t[ go
fr.setResizable(true); NI\jGR.
fr.setSize(500, 100); mHUQtGAVQ
fr.setVisible(true); %<DXM`Y
} Uoh!1_oV
} Y'`w.+9
B_anO{3$4
#7+oM8b
Java Applet AF>J8 V
Java Applet用于HTML文件。 b'4{l[3~nl
Ua)ARi %
HTML代码: fa;\4#
7/w)^&8
<HTML>
vX;WxA<