“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。 )uj:k*`)
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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》。 0:NCIsIm<
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以下是用不同语言写成的Hello World程序的几个例子: &hTe-Es
Ada .[%^~q7
with Ada.Text_Io; use Ada.Text_Io; "H{Etb/
procedure Hello is Y[_{tS#u
begin pD^7ZE6
Put_Line ("Hello, world!"); WJ%4IaT
end Hello; Sn6cwf9.s
DC9\Sp?
fP+RuZ
汇编语言 4b\R@Knu
d@sAB1:
x86 CPU,DOS,TASM ]2:w?+T
MODEL SMALL UweXz.x7
IDEAL (d9G`
STACK 100H 54X=58Q
*$%ch=
DATASEG ;kW+
HW DB 'Hello, world!$' F0.Rv):
WruSL|4iH
CODESEG UY(pKe>
MOV AX, @data 8C,}nh
MOV DS, AX _wp>AJ r
MOV DX, OFFSET HW !hMD>B2Z
MOV AH, 09H eo#2n8I>=1
INT 21H
a ~
MOV AX, 4C00H !?AgAsSmc
INT 21H V-1H(wRu
END 5|nT5oS
4q9+a7@
%-lilo
x86 CPU,GNU/Linux,NASM &ikPa ,A
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). e8Ul^]
;Enter this into "hello.asm" then type: U z*7J
;"nasm -f elf hello.asm" MNuBZnO
;"ld hello.o -o hello" `_MRf[Z}
;"./hello" I{/}pr>
3np |\i
section .data ;data section declaration _Wb3,E a=
msg db 'Hello World!',0AH 5L?_AUL
len equ $-msg ;string length `\p5!Iq
Q
c @U\d<{w
section .text ;code section declaration V4["+Y
global _start ;entry point (start of execution) n]3Lqe;
_start: mov edx,len ;string length g-C)y
06
mov ecx,msg ;string start f9%M:cl
mov ebx,1 ;file handle: stdout !t;B.[U *
mov eax,4 ;sys_write #<$pl]>}t
int 80h ;kernel system call +.czj,Sq
/8cfdP Ba
mov ebx,0 ;return value GbXa=*
<-<
mov eax,1 ;sys_exit l:@`.'-=
int 80h ;kernel system call 0:1[F!]'b
S17iYjy#8T
E;o
"^[we
x86 CPU,Windows,MASM32 K/flg|uZ/V
.386 hL?"!
.model flat,stdcall q PveG1+25
option casemap:none
Qhc>,v)
;Include 文件定义 Ii.0Bul
include windows.inc OMY^'g%w
include user32.inc &UFj
U%Z%
includelib user32.lib =q\Ghqj1
include kernel32.inc r(ZMZ^
includelib kernel32.lib cv=H6j]h|
;数据段 6L/`
.data j7XUFA
szCaption db 'A MessageBox!',0 7hzd.
szText db 'Hello,world!',0 -$2B!#]3
;代码段 v1R t$[
.code E"'4=_
start: (r9W[
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK }J ^+66{
invoke ExitProcess,NULL ZRy'lW
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >)j`Q1Qc\
end start rOo|.4w
up;^,I
V*I2
AWK Pb]EpyAW
BEGIN { print "Hello, world!" } { qJ(55
)c<X.4
3oQ?VP
BASIC NMvNw?]
传统版BASIC(例如GWBASIC): /8O;Q~a
UhX)?'J
10 PRINT "Hello, world!" ]aZ3_<b
20 END %wQE
lkB
qS!U1R?s
或在提示符输入: PAy/"R9DT-
Dk^T_7{
?"Hello, world!":END WJ&a9]&C
gucgNpX
现代版BASIC(例如Quick BASIC): %E"dha JY
PR2;+i3
Print "Hello, world!" /cX%XZg
c}G\F$
以下的语句在Quick BASIC中同样有效: =M],5<2;
VkD}gJY
? "Hello,world!" Q`zW[Y&]
=K;M\_k%y
>Tp`Kri
BCPL 2[X\*"MQ2
GET "LIBHDR" G_E \p%L>]
3EA+tG4KnO
LET START () BE 3%(BZ23
$( ?ZAynZF|#
WRITES ("Hello, world!*N") U3^3nL-M9
$) e6i m_ Tk
2uzy]faM
>$:_M*5
Befunge nJ|M
"!dlrow olleH">v
QB<~+dW
, M\D25=(
^_@ x>GxyVE
8D&yFal
SH5a&OVZhn
Brainfuck 7?p>v34A
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< Vv_lBYV
+++++++++++++++.>.+++.------.--------.>+.>. =`OnFdI
Fql|0Fq
`9&~fWu
C y[DS$>E
#include <stdio.h> QIC? `hk1
fA"9eUu
int main(void) ^u+#x2$Mg
{ ~[Z,:=z
printf("Hello, world!\n"); mO0}Go8
return 0; $2>"2*,04
} X<<FS%:+
$g!iy'4n*
') K'Ea
C++ \qkb8H
#include <iostream> 560`R>
#By~gcN
int main() :zQNnq:|
{ D}OhmOu3
std::cout << "Hello, world!" << std::endl; VJSkQ\KD
return 0; |.?Xov]
} Y<;KKD5P'j
fn,
YH
%cl{J_}{&
C++/CLI 6){nu rDBG
int main() Vs9]Gm
{ :NynNu'
System::Console::WriteLine("Hello, world!"); B4eV $~<
} PB;j4
#]*]qdQWV^
NJmyp!8
C# (C Sharp) >^GAfvW
class HelloWorldApp "V<WC"
{
NArr2o2
public static void Main() 5 89P$2e1X
{ W.^R/s8O%5
System.Console.WriteLine("Hello, world!"); @;7Ht Z`
} 9R99,um$
} ^[.Z~>3!\q
nP+jkNn3
ke19(r Ch
COBOL v<vaPvW
IDENTIFICATION DIVISION. !,O Y{='
PROGRAM-ID. HELLO-WORLD. Sr>5V
U"535<mR
ENVIRONMENT DIVISION. ]92=PA>75
m1DrT>oN'
DATA DIVISION. i?D)XXB85
~Z}DN*S
PROCEDURE DIVISION. V?- ]ZkI
DISPLAY "Hello, world!". q"u,r6ED
STOP RUN. 7`SrqI&
qHu\3@px
)W>9{*4m
Common Lisp T:3}W0s,
(format t "Hello world!~%") ;{1 ws
%(B6eiA
;umbld0
DOS批处理 4ah5}9{g
@echo off P\%aJ'f~
echo "Hello, world!" ^!Tq(t5V
vT#m 8Kg
GI%9Tif
Eiffel ]<k+a-Tt
class HELLO_WORLD h*V~.H
9>/:c\q+
creation 'H(khS
make :8U@KABH@h
feature 5P[urOvV
make is dMK\ y4#i
local H^XTzE
io:BASIC_IO xiO10:L4
do /0r6/ _5-.
!!io +8.1cDEH\
io.put_string("%N Hello, world!") %FJB9?9=|
end -- make LJOJ2x
end -- class HELLO_WORLD VgO.in^q
h]WW?.
,p
V3O`z
Erlang zYEb#*Kar
-module(hello). =a 6e*f
-export([hello_world/0]). w01u~"E
*0z'!m12
hello_world() -> io:fwrite("Hello, World!\n"). ,"f2-KC4h
>2mV{i&
fJ;1ii~
Forth "\qm +g
." Hello, world!" CR ^TT_BAI
S$qpClXS,
O)INM
Fortran !H(V%B%
WRITE(*,10) F6Qnz8|
10 FORMAT('Hello, World!') yc0_7Im?
STOP WQv`%%G2>
END ^-,@D+eW
Nc*z?0wP
f\~A72-
HTML ivvm.7{
<HTML> lL*"N|Y
<HEAD> ASa)xf9
<TITLE> Hello World! </TITLE> [#2X
</HEAD> 5>>JQ2'W
<BODY> @DK`#,
<p>Hello World!</p> `%$+rbo~
</BODY> lI;ACF^
</HTML> zd3^k<
~N8$abQJV
eV\VR
!!i
HQ9+ mA4]c
H ycrM8Mu
3
MI>_wG5P@
ft?c&h;At
INTERCAL V"8w:?
PLEASE DO ,1 <- #13 .Ix[&+LsY
DO ,1 SUB #1 <- #238 iu QMVtv
DO ,1 SUB #2 <- #112 [{6fyd;
DO ,1 SUB #3 <- #112 vOU9[n
N[
DO ,1 SUB #4 <- #0 bdHHOpXM
DO ,1 SUB #5 <- #64 Q@/Z~xw"'I
DO ,1 SUB #6 <- #238 `vD.5
DO ,1 SUB #7 <- #26 a7"Aq:IjU
DO ,1 SUB #8 <- #248 bf6:J
`5Z
DO ,1 SUB #9 <- #168 N^zFKDJG
DO ,1 SUB #10 <- #24 TH*}Ja^/
DO ,1 SUB #11 <- #16 vvF]g.,
DO ,1 SUB #12 <- #158 lMe+.P|
DO ,1 SUB #13 <- #52 S^nI=HTm
PLEASE READ OUT ,1 ]\*_}
PLEASE GIVE UP SzyaVBD3
0lS=-am
?D=C8[NEX
Java ]l6niYVB2
public class Hello s/Q8(sF5
{ U&gI_z[
public static void main(String[] args) d8&T62Dnd4
{ j5G=ZI86y
System.out.println("Hello, world!"); ,YF1*69
} KdC'#$
} $J*lD-h-
@gk{wh>c
[n&SA]a
JSP :i*
=s}cv
<% m[tsG=XBN
out.print("Hello, world!"); SEIJ+u9XsA
%> w/@ tH
*V{Y.`\
KB8_yo{y
MIXAL "8/BVW^bv
TERM EQU 19 the MIX console device number uuYeXI;
ORIG 1000 start address "6>+IF
START OUT MSG(TERM) output data at address MSG #dkSAS
HLT halt execution m=V69
a#
MSG ALF "MIXAL" 15M!erT
ALF " HELL" b ; U
ALF "O WOR" |};-.}u^`h
ALF "LD " t<MO~_`!
END START end of the program bCV_jR+
bOD]`*q
W('V2Z-q
Nuva #^xj"}o@
<..直接输出..> w6|l ~.$=
Hello, world! h}=
VCa`|S?2
<..或者..> 'LC0hoV
?%Gzd(YEY
<. f s2}a
// 不带换行 NV`=T?1[5
? "Hello, world!" \2 M{R
N$M:&m3^
// 或者 nT=XWM
rtz ]PH
// 带换行 t]8nRZ1
?? 'Hello, world!' a2B9
.;F
.> YB376/
LKYcE;n
L@`:mK+;
OCaml eJE!\ucS2W
let main () = l4\ !J/df
print_endline "Hello world!";; k<y~n*{_
p:3
V-$4X
4VHX4A}CgA
Pascal b?k6-r$j
program Hello; iVA=D&eZ
begin dUkZ_<5''
writeln('Hello, world!'); 7AQv4
end. [E9)Da_)i
#Ht;5p>5
UVgDm&FF
Perl IgPU^?sp
#!/usr/local/bin/perl B]:?4Ov
print "Hello, world!\n"; 7E;`1lh7
vGchKN~_
l f_q6y
PHP p_CC KU
<?php M2LW[z
print("Hello, world!"); &0SgEUZr
?> CgKFI
.J\i !
]~4*ak=)5\
Pike Tfw5i,{
#!/usr/local/bin/pike cQ(,M
int main() .cB>ab&
{ S%o6cl =
write("Hello, world!\n");
scZ&}Ni
return 0; <%S[6*6U
} o^Qy71Uj
'25zb+-
<=@6UPsn2
PL/I BKQwF*<V
Test: procedure options(main); 8$38>cGY^
declare My_String char(20) varying initialize('Hello, world!'); L[MAc](me-
put skip list(My_String); 1aoKf F(
end Test; x/IAc6H~_8
F **/T
P7*?E*
Prolog c!] yT0v&s
goal 6k;>:[p
write("hello,world!"). '%*/iH6<U{
/~P4<1
=Q4Wr0y><]
Python f!J?n]
#!/usr/local/bin/python CQ'4 ".7
print "Hello, world!" wc?YzXP+
0xUn#&A~
I?CfdI
REXX !}=#h8fv
say "Hello, world!" ;upYam"
)zu m.6pT
\:E=B1
Ruby OhTd>~R`<
#!/usr/bin/ruby GP_%.fO\M
print "Hello, world!\n" ;9hS_%ldX4
__[bKd.
_m3#g1m{
Scheme #|F5Kh"
(display "Hello, world!") rvPmd%nk-
(newline) VEBvS>i*
u\u6<[>P
@-XMox/
sed (需要至少一行输入) LcGG~P|ML
sed -ne '1s/.*/Hello, world!/p' vue=K
WTUC\}#E\
z
9~|Su
Smalltalk /m h #o
Transcript show: 'Hello, world!' ?y,z
{r:5\
A4Tjfc,rx9
SNOBOL O@-(fyG
OUTPUT = "Hello, world!" \hZye20
END `}~NZ
e]D TK*W~
~2O1$o u
SQL m*` W&k[
create table MESSAGE (TEXT char(15)); 'v%v*Ujf[
insert into MESSAGE (TEXT) values ('Hello, world!'); E<77Tj
select TEXT from MESSAGE; _p0G8
drop table MESSAGE; 3mT6HGSKR
1=mb2A
p
s_o:*$l
Tcl `9Q O'^)
#!/usr/local/bin/tcl XF`?5G~~#
puts "Hello, world!" $pj;CoPm
eV(
4*?i!<N9
TScript bjql<x5d
? "Hello, world!" aR}I l&
6dKJt
h{?cs%lZ
Turing )uy2,`z
put "Hello, world!" y@Ak_]{b
0t -=*7w%
#*
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UNIX-style shell )J1xO^tE
程序中的/bin/sh可改为您使用的shell .]ZMxDZ
/v7o!D1G
#!/bin/sh no7Q%O9
echo 'Hello, world!' [wM]w
+%)bd
>44,Dp]
GUI 2I0Zr;\f
@c;:D`\p1C
Delphi R&MetQ~-{
program HelloWorld; im"3n=
uses } /aqh ;W
Dialogs; Kk 6i
begin uex([;y
ShowMessage('Hello, World!'); EOG&Xa
end. T49^
5`{u! QE
C |P(,Xp
Nuva \' >d.'d
<. 7-4S'rq+
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) *iXaQu T
.> DUvF
SAokW,
Tr"Bz!
Visual Basic V~S(cO[vj
MsgBox "Hello, world!" D9higsN
'或者 Z6_fI
Print "Hello, world!" 9lc{{)m2)
Gr!@ih^
)m>Y[)8!
Visual FoxPro \04(V'`U
? "Hello, world!" s@pIcNvx
y1kI^B
9bu1Ax1M
X11 pRFlmg@/}
用一个程序 Io]KlR@!T
qw}.
QwPT
xmessage 'Hello, world!' !]=S A &
ONm-zRx|
用C++和gtkmm 2 6U%F
mE @
>JT^[i8[
#include <iostream> QI6=[
#include <gtkmm/main.h> %)P)Xb
#include <gtkmm/button.h> <L:}u!
#include <gtkmm/window.h> mEq>{l:
using namespace std; ~o8x3`CoF
3(=QY)
class HelloWorld : public Gtk::Window (?#"S67
{ zC>zkFT>H
public: {i/7Nx
HelloWorld(); tJ Mm
virtual ~HelloWorld(); }W5~89"
protected: I$JyAj
Gtk::Button m_button; .pPtBqp
virtual void on_button_clicked(); a`8svo;VUO
}; (\CH;c-@
jF|LPWl
HelloWorld::HelloWorld() : m_button("Hello, world!") $im6v
{ 0hCUr]cZ,
set_border_width(10); Z2&7HTz
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); Ed>n/)Sm
add(m_button); |!uC [=
m_button.show(); :\"g}AX
} 5 IFc"
y{J7^o(_~
HelloWorld::~HelloWorld() {} IZ9*
'0Z
jYnP)xX;
void HelloWorld::on_button_clicked() V( 3rTDg
{ #hh7fE'9
cout << "Hello, world!" << endl; @zSj&4
} Hw%lT}[O
ZBXn&Gm
int main (int argc, char *argv[]) 0oo*F
{ e/F+Tf
Gtk::Main kit(argc, argv); AJ)N?s-=
HelloWorld helloworld; smat6p[
Gtk::Main::run(helloworld); XseP[
} zN7Ou .
b%|6y
]vq=~x
Java
>^Y)@J
import java.awt.*; #E@X'jwu
import java.awt.event.*; 1-?TjR
0{sYD*gK]
public class HelloFrame extends Frame c}D>.x|]
{ q.v_?X<_
HelloFrame(String title) ?tf<AZ=+^L
{ |eH*Q%M
super(title); tz_WxOQ0
} 9~yp=JOV@
public void paint(Graphics g) s -),Pv|
{ I_On0@%T5b
super.paint(g); bh UghHT
java.awt.Insets ins = this.getInsets(); ;#S4$wISw`
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); !E9A=u{
} jQY^[A
public static void main(String args []) 4L)Ox;6>
{ vff`Xh>k(
HelloFrame fr = new HelloFrame("Hello"); m,#Us
Y$N D
fr.addWindowListener(
nIv/B/>pZ
new WindowAdapter() F/0x`l
{ #5mnSky+s
public void windowClosing(WindowEvent e) *","u;&
{ Mx=L lC)
System.exit( 0 ); :1e'22[=.
} 6Y/TqI[
} |n\(I$
); psB9~EU&Q
fr.setResizable(true); =pn(56
fr.setSize(500, 100); }d 16xp
fr.setVisible(true); 0A.9<&Lod
} o3>D~9
} CUa`#
6cbIs_g
-mqTlXM
Java Applet CB>O%m[1
Java Applet用于HTML文件。 DK }1T
02~GT_)$^
HTML代码: MI*@^{G
T.iVY5^<
<HTML> {b90c'8?a
<HEAD> #{suH7
<TITLE>Hello World</TITLE> H"%SzU
</HEAD> :qO)^~x
<BODY> I=o/1:[-
L6"?p-:@'
HelloWorld Program says: _dynqF8*
VU(#5X%Pn
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> hwdZP=X
</APPLET> KfMaVU=4P
j!hdi-aTU
</BODY> k{B;J\`E;
</HTML> ,P$Crs[
lr&O@
5"oy
Java代码: `~ {0
=@ "'aCU/
import java.applet.*; @-5V~itW
import java.awt.*; -
u'5xn7
L$s;tJ
public class HelloWorld extends Applet h|Udw3N1L
{ i`HXBq!|w
public void paint(Graphics g) .GNl31f0
{ _U/C G<n
g.drawString("Hello, world!", 100, 50); rc)vVv
} J-+p]xG
} /d]{ #,k
/2AeJH\-
Q>[GD(8k
java script %2`geN<
java script是一种用于HTML文件的脚本语言。要查看以下程序的运行结果,只要将其复制到任何HTML文本即可。 wNhtw'E8
zHW}A
`Rz
<script language="java script"> ,.PmH.zjmR
function helloWorld() ?ZlN$h^
{ CAV
Q[r5y
alert("Hello World"); Fg-4u&Ik
} {1]/ok2k5
</script> T^n0 =|
ctWH?b/ua
<a href="java script:this.location()" 0w<qj T^U
onclick="java script:helloWorld();">Hello World Example</a> xlU:&=|
\,G7nT
#Yr/GNN
PostScript 3rQ;}<*M
PostScript是一种专门用来创建图像的语言,常用于打印机。 g7nqe~`{
6qzy eli
/font /Courier findfont 24 scalefont ql
c{k/
u
font setfont =pR'XF%
100 100 moveto k&8&