“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。 %`5K8eB
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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》。 f!YlYk5
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以下是用不同语言写成的Hello World程序的几个例子: )_j(NX-C:
Ada Wm"#"l4
with Ada.Text_Io; use Ada.Text_Io; zJ}abo6rVw
procedure Hello is k.54lNl
begin U%@C<o
"
Put_Line ("Hello, world!"); S`
U,
end Hello; <Bn0wr8)\
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n>eDN\5
汇编语言 Y{dX[^[
7n84`|=
x86 CPU,DOS,TASM I`IW^eZM
MODEL SMALL BH}Cx[n?~
IDEAL i; ]0>g4
STACK 100H
MYVVI1A
*u|1Z%XO
DATASEG PPG+~.7
HW DB 'Hello, world!$' |n;);T(
1I'Q{X&B
CODESEG OYWHiXE6]
MOV AX, @data V73/q
MOV DS, AX PeiRe
MOV DX, OFFSET HW >JA-G@3i
MOV AH, 09H |LLpG37_
INT 21H |dHtv 6I
MOV AX, 4C00H #=)>,6Zw
INT 21H Zi]E!Tgn
END Tzjv-9^V
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G!C }ULq
x86 CPU,GNU/Linux,NASM H-e$~vEbP
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). t%^&b'/Z
;Enter this into "hello.asm" then type: ,']CqhL6=R
;"nasm -f elf hello.asm" NA0Z~Ug>
;"ld hello.o -o hello" DEkv,e
;"./hello" havmhS)O
SnUR?k1
section .data ;data section declaration "R)n1,0
msg db 'Hello World!',0AH , :K{
len equ $-msg ;string length ;m.6 ~A
|%XcI3@*
section .text ;code section declaration <{ v
%2
global _start ;entry point (start of execution) A+H8\ew2,
_start: mov edx,len ;string length l\N2C4NG
mov ecx,msg ;string start E%8uQ2p(
mov ebx,1 ;file handle: stdout qo\9,<
mov eax,4 ;sys_write eG2'W
int 80h ;kernel system call s"$K2k;J
8"d??3ZXJ
mov ebx,0 ;return value kQ&Q_FSO
mov eax,1 ;sys_exit U8>4Cl J4
int 80h ;kernel system call jFKp~`/#
(#85<|z
6Xo "?f
x86 CPU,Windows,MASM32 m-~3c]pA
.386 cotySio$
.model flat,stdcall ppLLX1S
option casemap:none gWj r|m<
;Include 文件定义 lJfk4 -;M
include windows.inc *a8 <cf
include user32.inc iYYuZ.
includelib user32.lib ,1CmB@
include kernel32.inc b$nev[`{6
includelib kernel32.lib SQ+r'g
;数据段 1VG]|6f
.data >;j&]]-&
szCaption db 'A MessageBox!',0 W79.Nj2`
szText db 'Hello,world!',0 qG~6YCqii
;代码段 `?l
/HUw
.code yXEI%2~)
start: <f.Eog
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK .dxELSV
invoke ExitProcess,NULL w9"~NK8xzM
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ;{R;lF,
end start jHHCJOHB8
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IJ
dOaCdnd~
AWK sL\ {.ad5
BEGIN { print "Hello, world!" } 6v%ePFul
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BASIC %B1TN#KoT
传统版BASIC(例如GWBASIC): mv,a>Cvs[
T <k;^iqR
10 PRINT "Hello, world!" D-i, C~W
20 END 6'uCwAQU
aYc<C$:NC"
或在提示符输入: b-<@3N.9]
726UO#*
?"Hello, world!":END Y+g(aak+.
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现代版BASIC(例如Quick BASIC): 8a8D0}'
<RC %<
Print "Hello, world!" rhaq!s38:
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以下的语句在Quick BASIC中同样有效: #E\6:UnT
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? "Hello,world!" CHO_3QIz
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~g#/q~UE
BCPL suWO:]FR
GET "LIBHDR" ([rSYKpi
<:nyRy}
LET START () BE HFyQ$pbBU
$( 1#AxFdm1
WRITES ("Hello, world!*N") _tjexS'
$) .qYQ3G'V
#v~dhx=R
&dni6E4
Befunge ,(sE|B#s
"!dlrow olleH">v `]4(Z"R
, cZoj|=3a
^_@ grkA2%N
EX, {1^h
-,g.39u
Brainfuck .YB/7-%M[
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< c\ZnGI\|
+++++++++++++++.>.+++.------.--------.>+.>. Ml?KnSb
k*,+ag*j
glROT@
C ij3W8i9'
#include <stdio.h> 8*B+@`
|tLD^`bt
int main(void) 3q@JhB
{ pAA)?/&oKV
printf("Hello, world!\n"); ]WcN6|b+
return 0; B *6ncj
} LIz'hfS!
Kf$(7FT'`
L5|g\Y`
C++ fsnZHL}=n
#include <iostream> J
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[Ne'2z
int main() ]Z=al`-
{ v7#|%
std::cout << "Hello, world!" << std::endl; G7-k ,P^
return 0; ,BGUIu6
} PVljb=8F
8)"lCIf
x`I Wo:j
C++/CLI 5~2_wWjX
int main() g$hEVT
{ b<"jmB{
System::Console::WriteLine("Hello, world!"); WMWMb3
} QSM3qke
R(P(G;#j
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C# (C Sharp) 9pS:#hg
class HelloWorldApp i-@V
{ R@_3?Z!W=
public static void Main() TVSCjI
{ Ux= B*m1@{
System.Console.WriteLine("Hello, world!"); 0mmHN`<
} k:@N6K/$P^
} alNn(0MG
%Kp^wf#o9
:kwDa
a
COBOL .J+F
HG'
IDENTIFICATION DIVISION. 1:@ScHS
PROGRAM-ID. HELLO-WORLD. ke<5]&x
Lh.-*H
ENVIRONMENT DIVISION. 15' fU!
9!Xp+<
DATA DIVISION. >*!^pbZfX
mU]^PC2[
PROCEDURE DIVISION. !su773vo
DISPLAY "Hello, world!". t6\--lk_
STOP RUN. +$2`"%nBG
m9&%A0
ocUBSK|K)
Common Lisp ov Xk~%_
(format t "Hello world!~%") o>Dd1
j
KQw>6)
S0r+Y0J]<
DOS批处理 g:G5'pZf
@echo off +bJ~S:[
echo "Hello, world!" #,XZ @u+
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y>gw@+
Eiffel r{SDJa
class HELLO_WORLD ]gaeN2
HPt\ BK
creation d'3"A"9R7-
make bs16G3-p
feature 'Yc^9;C(
make is Z*h}E
local fZ;}_wR-H
io:BASIC_IO G8/q&6f_
do \$ss
!!io cN&:V2,
io.put_string("%N Hello, world!") C|3cQ{
end -- make -:J<JX)o
end -- class HELLO_WORLD 72*j6#zS
KMQPA>w#
T,vh=UF%]
Erlang Q|S>C%4?
-module(hello). .P?n<n#
-export([hello_world/0]). 2Yd@V}
k"/Rjd(;
hello_world() -> io:fwrite("Hello, World!\n"). 9e
vQQN6D|
)N1iGJO)
A^LS^!Jz
Forth 5IFzbL#q#f
." Hello, world!" CR N`N?1!fM<}
Zkqq<
*W>, 98
Fortran Q1|zX@,
WRITE(*,10) 19!;0fe=
10 FORMAT('Hello, World!') X(3| (1;sV
STOP Y>
}\'$\b
END zn_#}}e;G
7-~)/7L
X')l04P@%
HTML
8Djki]
<HTML> u&UmI-}
<HEAD> >lzXyT6x8
<TITLE> Hello World! </TITLE> O/d]2<V
</HEAD> suGd &eP|
<BODY> T0)bnjm
<p>Hello World!</p> )EKWsGNe/
</BODY> .jtv Hr}U
</HTML> qfxEo76'
LXhR"PWZM\
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HQ9+ oGl<i
H .c0u##/0
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_G'A]O/BZD
INTERCAL i?uX'apk
PLEASE DO ,1 <- #13 B
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DO ,1 SUB #1 <- #238 @7.7+blS"H
DO ,1 SUB #2 <- #112 r3-<~k-
DO ,1 SUB #3 <- #112 PB5h5eX
DO ,1 SUB #4 <- #0 "Jg.)1Jw
DO ,1 SUB #5 <- #64 H270)Cwn+
DO ,1 SUB #6 <- #238 k_zn>aR$F
DO ,1 SUB #7 <- #26 4gNN "
DO ,1 SUB #8 <- #248 Iwh0PfWJ
DO ,1 SUB #9 <- #168 :M f8q!Q'
DO ,1 SUB #10 <- #24 v2p0EOS
DO ,1 SUB #11 <- #16 n"D` =
DO ,1 SUB #12 <- #158 [m6+I9
DO ,1 SUB #13 <- #52 fqq4Qc)#U&
PLEASE READ OUT ,1 hiA\~}sl n
PLEASE GIVE UP Di4GaKa/
>w,jaQ
ED" fi$
Java XuHR
public class Hello Wi>m}^}9
{ v-q-CI?B#
public static void main(String[] args) 6akI5\b
{ "19#{yX4
System.out.println("Hello, world!"); *FZav2]-
} lz36;Fp
} 8~s0%%{,M
d,Oagx
WVOj;c
JSP %iEdU V\$
<% NqNU:_}
out.print("Hello, world!"); 3(,m(+J[S
%> y,ub*-:
udBIEW,`
N}ND()bf
MIXAL 'g'RXC}D>
TERM EQU 19 the MIX console device number .s!0S-RkC
ORIG 1000 start address jWi~Q o+
START OUT MSG(TERM) output data at address MSG gTOx|bx
HLT halt execution m6$&yKQ-=h
MSG ALF "MIXAL" "e8EA!Ipte
ALF " HELL" :D-D+x
ALF "O WOR" oSkQ/5hg.
ALF "LD " bR~(Ry`
END START end of the program r Dlu&
Nq8 3 6HL
UntFkoO
Nuva {Q_GJ
<..直接输出..> C<I?4WM
Hello, world! Qzo -Yw`=
d^!k{Qx'
<..或者..> I}0? d
!k*B-@F
<. _5~|z$GW
// 不带换行 _X;,,VEV!
? "Hello, world!" ZeU){CB
wCR! bZ w
// 或者 ecoI-@CAI
8 sc2r
// 带换行 YGLq~A
?? 'Hello, world!' v~T)g"_|
.> i$@xb_
D6&P9e_5
jl(D;JnF
OCaml E QU@';~8
let main () = UXdc'i g
print_endline "Hello world!";; Qj_)^3`e
YI"!&a'yj
X';qcn_^
Pascal V6HZvuXV!
program Hello; ,Ww}xmq1H
begin <PuY"-`/Oc
writeln('Hello, world!'); Q<;EQb#
end. 'PY;
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e7{6<[k3+$
Perl 3C%|src
#!/usr/local/bin/perl b|DU
print "Hello, world!\n"; Sk!' 2y*@&
T&>65`L
r"h09suZBW
PHP 24? _k]Y
<?php FZ+2{wIV^
print("Hello, world!"); W,Q>3y*
?> RMT9tXe*5
7sOAaWx
rA B=H*|6
Pike wbKJ:eWgt
#!/usr/local/bin/pike [7gz?9VyLF
int main() Xn%7{%;h
{ #-G@ p
write("Hello, world!\n"); Ot`%5<E^
return 0; &&P9T/Zks
} uj.$GAtO)
Q5Nbu90
m[2[9bQ0
PL/I
*~U.36
Test: procedure options(main); )z@
+|A
declare My_String char(20) varying initialize('Hello, world!'); uKM` umE
put skip list(My_String); {S9gOg
end Test; 3?"gfw W
iBbaHU*V
:'C?uk ?
Prolog %po;ih$jr*
goal ^[HUtq
write("hello,world!"). OF']-
"i/GzD7 `n
hDW_a y4
Python wdBBx\FP
#!/usr/local/bin/python 2ns,q0I
A
print "Hello, world!" BV>9U5
l:eC+[_;>
~zac.:a8
REXX i*mU<:t
say "Hello, world!" kJf0..J[#<
8\'tfHL
hOZTD0
Ruby $A{$$8P
#!/usr/bin/ruby f:~G)
print "Hello, world!\n" /N*<Fq7w~
[u K,.G
UV}:3c6 ZX
Scheme :M{
)&{D
(display "Hello, world!") )z74,n7-
(newline) 4vG-d)"M2
O4oN)
y|MhV/P04
sed (需要至少一行输入) 4To$!=
sed -ne '1s/.*/Hello, world!/p' iZdl0;16[
0R\.G1f%
2INpo
Smalltalk OQ_<V xz
Transcript show: 'Hello, world!' 2(3Q#3V
YB 7A5
E`^D9:3:)
SNOBOL 45.g ;
OUTPUT = "Hello, world!" yQj J-g(.
END I
F!xZ6X8
T|S-?X,
;ZI8vFb
SQL |z_Dw$-xm
create table MESSAGE (TEXT char(15)); 5 cQ]vb
insert into MESSAGE (TEXT) values ('Hello, world!'); jmv=rl>E*
select TEXT from MESSAGE; 4+d(d
drop table MESSAGE; @aUNyyVP
F1$XUos9
,WOCG2h
Tcl {{P 3Z[
#!/usr/local/bin/tcl ]6`K
puts "Hello, world!" JC~sz^>p\
!]uB4
CStNCBZ|\
TScript kn>qX{W
? "Hello, world!" ]rY9t@
'G % ]/'_U
$=E4pb4Y
Turing mMZ{W+"[f
put "Hello, world!" W9c&"T9JT
,D`jlY-1l
6<S-o|Xw
UNIX-style shell R||$Rfe
程序中的/bin/sh可改为您使用的shell M61Nl)|mx&
lc5(^~
#!/bin/sh $X)|`$#pL#
echo 'Hello, world!' !L9|iC:8
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m)<+?Bv y
GUI R#~l[S8u^
aDX&j2/
Delphi cyWb*Wv
program HelloWorld; ~x'8T!M{
uses b&h'>(
Dialogs; ]=-=D9ZS3
begin [Fag\/Y+
ShowMessage('Hello, World!'); tk'&-v'h
end. !fAvxR
.bp#YU,m
58#nYt
Nuva [W$Mn.5<s
<. )_ !a:
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) S#p_Y^A
.> z0ufLxq
5D7 L)>
x@oxIXN
Visual Basic 7#UJ444b~
MsgBox "Hello, world!" r 56~s5A
'或者 kkHK~(>G
Print "Hello, world!" [vb#W!M&|
&${| o@
o?M ;f\Fy
Visual FoxPro ;t9_*)[
? "Hello, world!" Y}.f&rLe
4j'rbbs/
AdDR<IW
X11 5 8;OTDR!
用一个程序 CfrO1i F
& }j;SK5
xmessage 'Hello, world!' *<
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p(GI02|n
用C++和gtkmm 2 'M? ptu?f
hUvA;E(qD
#include <iostream> ;
Gv-$0{P3
#include <gtkmm/main.h> g6DIWMoO=h
#include <gtkmm/button.h> gk8v{'0Er
#include <gtkmm/window.h> 7vPGb:y
using namespace std; 8|i<4>
c%b|+4
}x
class HelloWorld : public Gtk::Window $;ny`^8
{ |p*cI @
public:
X_Lt{mf
HelloWorld(); d<OdQvW.
virtual ~HelloWorld(); qu$FpOJ
protected: s-SFu
Gtk::Button m_button; Z)(#D($-
virtual void on_button_clicked(); jYAm}_?No
}; ZWuNl!l>
INk|NEX
HelloWorld::HelloWorld() : m_button("Hello, world!") o%lxEd r
{ h'G
set_border_width(10); wt@TR~a
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); ]QHZ[C
add(m_button); CcV@YST?
m_button.show(); 6f#Mi+"
} MoiRAO
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HelloWorld::~HelloWorld() {} FR'Nzi$
ia
/#`#.
void HelloWorld::on_button_clicked() QjpJIw
{ "BpDlTYM
cout << "Hello, world!" << endl; "#8^":,4
} ?AxB0d9z
9'|k@i:
int main (int argc, char *argv[]) oGeV!hD
{ l&W:t9o
Gtk::Main kit(argc, argv); ,:-^O#
HelloWorld helloworld; }>,%El/
Gtk::Main::run(helloworld); VpbJe@*D
} bqF?!t<B
4C:dkaDq]
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Java t^6ams$
import java.awt.*; cyjgi /Z
import java.awt.event.*; i[.7 8K-s
SZtSUt(ss
public class HelloFrame extends Frame "=40%j0
{ zh?B-"O=5
HelloFrame(String title) -g9CW[
{ qOyS8tA.H
super(title); ++8 Xi1
} r}|)oG,=
public void paint(Graphics g) fD_3lbiL(
{ =/ !A
super.paint(g); SZ4@GK
java.awt.Insets ins = this.getInsets(); b=W kRj
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); kwS[,Qy\
} [CV0sYEA
public static void main(String args []) ^Nav8dma
{ R*ex!u60M
HelloFrame fr = new HelloFrame("Hello"); I(j{D>v
l.}gWN9-
fr.addWindowListener( -biw{
new WindowAdapter() l9y %@7
{ 8)`
public void windowClosing(WindowEvent e) Qd?S~3XT
{ fR2,NKM@
System.exit( 0 ); oc-o>H
} j~;y~Cx?
} l<"B[
); Skux&'N:
fr.setResizable(true); !([ v=O#
fr.setSize(500, 100); 2Qp]r+!
fr.setVisible(true); C<^S$
} b3GTsX\2|
} &s\,+d0
rg%m
D[YdPg@-
Java Applet 9(Kff nE^
Java Applet用于HTML文件。 iN@|08
<P Vmr2Jp"
HTML代码: q}g0-Da
VF7H0XR/k5
<HTML> >Mm.MNU
<HEAD> 3] U/^f3
<TITLE>Hello World</TITLE> aH500
</HEAD> n2F*a
<BODY> 7d_"4;K)
%a-fxV[
HelloWorld Program says: r"5\\ qf5*
RC/&dB
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> +fMW B
</APPLET> Jx4~ o{Z}c
7:.!R^5H
</BODY> r9-)+R
J
</HTML> `E>o:tff
9<Th: t|w
Java代码: Y$3liDeL=
" M&zW&
import java.applet.*; {N-*eV9#
import java.awt.*; :3}K$
D@iS#+22
public class HelloWorld extends Applet b0/[+OY
{ =D 5!Xq'|
public void paint(Graphics g) Zk gj_
{ 2+LvlS)C
g.drawString("Hello, world!", 100, 50); U4e9[=q`'
} z-S8s2.Fd
} 7H[.o~\
6SSrkj }U
?Y$3R"p@3`
java script /q`f3OV"
java script是一种用于HTML文件的脚本语言。要查看以下程序的运行结果,只要将其复制到任何HTML文本即可。 ia-&?
,=}+.ax
<script language="java script"> wqXo]dX
function helloWorld() baf@"P9@\A
{ V Z60
alert("Hello World"); %U97{y
} Fi+,omB&
</script> E{}eYU
gLg\W3TOi
<a href="java script:this.location()" g aXF3v*j
onclick="java script:helloWorld();">Hello World Example</a> p*Hf<)}
C2J@] &