“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。 O6YYOmt3
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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》。 U5Q `r7
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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$=])^ dur
Ada 7-'!XD!
with Ada.Text_Io; use Ada.Text_Io; b9%hzD,MR
procedure Hello is A>b o Xcr
begin UCa(3p^V_
Put_Line ("Hello, world!"); 3!Gnc0%c
end Hello; n*9)Y~
Z'/:
ES(b#BlrP/
汇编语言 bs
kG!w
-nV]%vJ$R}
x86 CPU,DOS,TASM :&/'rMi<T
MODEL SMALL 3*/y<Z'H
IDEAL (m|p|rL
STACK 100H "/(J*)%{
|/Ggsfmby
DATASEG (VI4kRj
HW DB 'Hello, world!$' * A@~!@XE4
/Pxt f~$
CODESEG ';^VdR]fk
MOV AX, @data dArg'Dc4
MOV DS, AX bfVKf}
MOV DX, OFFSET HW X) owj7U;
MOV AH, 09H ) 'j7Ra
INT 21H pyq~_Bng
MOV AX, 4C00H 2h@/Q)z
INT 21H (ye1t96
END Z0`Bn5
^{DXin 1O`
sPyq.oG
x86 CPU,GNU/Linux,NASM _Q t
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). VWj]X7v
;Enter this into "hello.asm" then type: lSPQXu*[
;"nasm -f elf hello.asm" [GyW1-p33w
;"ld hello.o -o hello" -S"YEH9
;"./hello" ,_!pUal
;*BG{rkr
section .data ;data section declaration T[`o$j6
msg db 'Hello World!',0AH Q;*TnVbJ
len equ $-msg ;string length S4n\<+dR<
`%ZM(9T
section .text ;code section declaration 2TXrVaM
global _start ;entry point (start of execution) Y^M3m'd?
_start: mov edx,len ;string length +4Aj/$%[q
mov ecx,msg ;string start N<zD<q
mov ebx,1 ;file handle: stdout *Ew`Fm H
mov eax,4 ;sys_write (oBvpFP33
int 80h ;kernel system call bg'Qq|<U
bE74Ui
mov ebx,0 ;return value 8doKB<#_+=
mov eax,1 ;sys_exit 08n2TL;EsX
int 80h ;kernel system call ~Y7>P$G)
^":UkPFCx:
D|9xD
x86 CPU,Windows,MASM32 c$Z3P%aP'V
.386 b(Zh$ 86
.model flat,stdcall fa//~$#"{L
option casemap:none 6ey{+8
;Include 文件定义 b}HLuX
include windows.inc ?NOc]'<(G
include user32.inc -|bnvPmE
includelib user32.lib M4w,J2_8MK
include kernel32.inc F{WV}o=MY
includelib kernel32.lib <wfPbzs-V
;数据段 l+HmG< P
.data QbjO*:c4
szCaption db 'A MessageBox!',0 w
&1_k:Z&
szText db 'Hello,world!',0 *|{1`{8n
;代码段 h 6Ovl
.code o,>9|EMQZ
start: s1.EE|h,5
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK `$*I%oT;
invoke ExitProcess,NULL [3lAKI
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Hb55RilC
end start D_]4]&QYT
-N
$4\yp
& Xm!i(i
AWK <'N"GLJ
BEGIN { print "Hello, world!" } }$iKz*nx|
?l/VCEZP
lHerEv<ja
BASIC O?L6Ues
传统版BASIC(例如GWBASIC): L{1MyR7`I+
q4=Gj`\43
10 PRINT "Hello, world!" *eL&fC
20 END c|m*<
i
NXo$rf:
或在提示符输入: 4zKmoYt
K~Nx;{{d
?"Hello, world!":END 6l]jmj)/
+ -~8t^
现代版BASIC(例如Quick BASIC): 1[p6v4qO{
Nk?eVJ)
Print "Hello, world!" sB`.G
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以下的语句在Quick BASIC中同样有效: ]Y111<Ja
W5cBT?V
? "Hello,world!" RT`.S
uN
D=1:-aLP7
~/^q>z!\4
BCPL `&ufdn\j
GET "LIBHDR" uaghB,i'n
/M!b3bmA
LET START () BE m&vuBb3
$( RwKnNIp
WRITES ("Hello, world!*N") >vQ8~*xd
$) .JCd:'-
L7\V^f%yCm
Rtpk_ND!
Befunge 9U&~H*Hf
"!dlrow olleH">v 42$ pvw<
, 8k +^jj
^_@ |ht:_l
8
7md,!|m
M/?eDW/
Brainfuck &~=FXe0S
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< _cvA1Q"
+++++++++++++++.>.+++.------.--------.>+.>. tVQq,_9C
jRiXN%
#No3}O;"g
C XM1;
>#kz
#include <stdio.h> HpP82X xj
&?g!)O
int main(void) ;P
*`v
{ E<RPMd @a
printf("Hello, world!\n"); ba-4V8w
return 0; ,="hI:*<
} {ooztC
FD'yT8]"
cl04fqX
C++ gcF:/@:Rm
#include <iostream> Upw`|$1S
9]C%2!Ur,
int main() B/O0 ~y!n
{ e dTFk$0
std::cout << "Hello, world!" << std::endl; 4SVIdSA
return 0; &cGa~#-u
} {ty)2
.jUM';
l
rjK]zD9
C++/CLI w)N~u%
int main() 9U>OeTh(
{ )Cu2xRr^`
System::Console::WriteLine("Hello, world!"); ff&jR71E
} -wa"&Q
@yM$Et5
igx~6G*
C# (C Sharp) C19}Y4r:
class HelloWorldApp p0rmcP1Ln
{ LXoZ.3S
public static void Main() mq}V @H5
{ n
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System.Console.WriteLine("Hello, world!"); ui
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} .8wf {y
} ZJe^MnE (G
ZyM7)!+kPa
%rlMjF'tG
COBOL (/7b8)g
IDENTIFICATION DIVISION. hCBre5
PROGRAM-ID. HELLO-WORLD. &%]v0QK
iC{(vL0P+
ENVIRONMENT DIVISION. H-rxn
3{)!T;W d
DATA DIVISION. c=,HLHpFO(
Al1_\vx7
PROCEDURE DIVISION. n:|a;/{I]9
DISPLAY "Hello, world!". {p.^E5&
STOP RUN. &@K6;T
b)eoFc)lc
1etT."
Common Lisp 9(3]t}J5
d
(format t "Hello world!~%") ZIN1y;dJ
,eGguNA9
GKc?
DOS批处理 7KesfH?
@echo off u*f`\vs
echo "Hello, world!" /WGD7\G'8
q68CU~i*
JC0# pU;
Eiffel yh2)Pc[
class HELLO_WORLD S B~opN
-Uan.#~S
creation !2kM
make %QG3~b%
h
feature uK]-m
make is 5dGfO:Dy_
local <2d)4@B=
io:BASIC_IO Pbd[gKX_
do _@i-?Q
!!io )DmydyQ'
io.put_string("%N Hello, world!") }uNj#Uf
end -- make mqHcD8X
end -- class HELLO_WORLD wPEK5=\4Ob
mv>0j<C91
mPU}]1*p
Erlang @F]w]d
-module(hello). SwsJ<Dq^z
-export([hello_world/0]). wFF,rUV
3?K+wg s
hello_world() -> io:fwrite("Hello, World!\n"). 6cd!;Ca
A!,c@Kv
3
zMRa<G7
Forth N5{v;~Cm}V
." Hello, world!" CR ~/X8Hy!-
=;+gge!?bB
Qo:vAv
Fortran MJh.)kd$
WRITE(*,10) t{>#)5Pqv
10 FORMAT('Hello, World!') B`.aQ
STOP tA^+RO4
END g zlxkv-F{
1.M<u)1GU
Ypl;jkHP
HTML >yr;Y4y7K
<HTML> s>:gL,%c
<HEAD> e/cHH34
<TITLE> Hello World! </TITLE> -.r"|\1X
</HEAD> [
:)F-
<BODY> 8!0fT}
<p>Hello World!</p> Zr1"'+-
</BODY> sBYDo{01
</HTML> cpl Ny?UIC
w+"E{#N
lX%-oRQ/os
HQ9+ VH4wsEH]
H SOE-Kio=B
2z*}fkJ
|$6Ten[B#
INTERCAL p6NPWaBR
PLEASE DO ,1 <- #13 tvf5b8(Y-
DO ,1 SUB #1 <- #238 ?A;RTM
DO ,1 SUB #2 <- #112 X $V_
DO ,1 SUB #3 <- #112 R(pQu!
K4
DO ,1 SUB #4 <- #0 x&^Xgi?
DO ,1 SUB #5 <- #64 0<:rp]<,
DO ,1 SUB #6 <- #238 1) K<x
DO ,1 SUB #7 <- #26 O'B3s y
DO ,1 SUB #8 <- #248 sxA]o|
DO ,1 SUB #9 <- #168 <{8x-zbR+
DO ,1 SUB #10 <- #24 2q]ZI
DO ,1 SUB #11 <- #16 Ky7.&6\n
DO ,1 SUB #12 <- #158 \BH?GMoP
DO ,1 SUB #13 <- #52 mi$C%~]5m
PLEASE READ OUT ,1 7FkiT
PLEASE GIVE UP VRgckh
m
tV_3!7m0$
=$+0p3[r
Java n$NM
public class Hello Ym"^Ds}
{ :Cezk D&
public static void main(String[] args) `jR8RDD
{ \D'mo
System.out.println("Hello, world!"); rXzq:
} <$hv{a
} mE1Vr
Ek_&E7
KPDJ$,:
JSP ]@cI _n
<% d&L
out.print("Hello, world!"); r_ +!3
%> uH?4d!G
N.+A-[7,W
x^_c4,i)
MIXAL 9>0OpgvC(
TERM EQU 19 the MIX console device number nu:l;+,VY
ORIG 1000 start address Sh5)36
START OUT MSG(TERM) output data at address MSG h5T~dGRlR
HLT halt execution 0}`.Z03fy
MSG ALF "MIXAL" [_`yy
ALF " HELL" !-n*]C
ALF "O WOR" >);M\,1\I
ALF "LD " ]l h=ZC
END START end of the program ^i8biOSZu
rN7JJHV
)g?jHm-p\
Nuva "M+I$*]
<..直接输出..> \v+c.
Hello, world! )(yaX
-IVWkA)7
<..或者..> OGLA1}k4
_1O .{O
<. qhG2j;
// 不带换行 ReD]M@;
? "Hello, world!" ^K: :g)
^\ln8!;
// 或者 ^8bc<c:P
jj;TS%
// 带换行 %Qb}z@>fJk
?? 'Hello, world!' D3,)H%5.y
.> G9xO>Xp^Al
ZwY mR=
js;YSg{m
OCaml ,4XOe,WQ
let main () = gBWr)R
print_endline "Hello world!";; c;]^aaQ+>
W5Jy"]^I
3TeRZ=2:*x
Pascal R>~I8k9mM
program Hello;
/*e<r6
begin 6{udNv X
writeln('Hello, world!'); p:$v,3:
end. +t*I{X(
ge%QbU1J
IY[qWs
Perl "Xwsu8~
#!/usr/local/bin/perl G(shZ=fq
print "Hello, world!\n"; 'byTM?Sp{
(RrC<5"
o(> #}[N}
PHP -OmpUv-O"
<?php Ktt(l-e +
print("Hello, world!"); )+Z.J]$O-
?> #H
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z19%!k
C|g1:#0
Pike ]oz >/\!
#!/usr/local/bin/pike 0|K<$e6IH
int main() fuCt9Kjo<
{ !a\HdQ
write("Hello, world!\n"); 3}3b@: <
return 0; ?li/mc.XG
} Sfc,F8$&N
H/ Ql
)K::WqR%w)
PL/I O[L#|_BnEO
Test: procedure options(main); X7-[#} T
declare My_String char(20) varying initialize('Hello, world!'); B]b/(Q+
put skip list(My_String); z<^LY]
end Test; }M"])B I
g] ]6) nT
=+?OsH
v
Prolog [4bE"u
goal W?!rqo2SP
write("hello,world!"). ,CPAS}kS
ez%:>r4
?dv-`)S&
Python ~Al3Dv9x
#!/usr/local/bin/python @x
A^F%(
print "Hello, world!" :yi} CM4
|=~mRqG
lfd-!(tXD
REXX v$JW7CKA
say "Hello, world!" #h9Gl@|
t;PG
=TzJgx
Ruby w@6y.v1I{
#!/usr/bin/ruby eTw9c }[
print "Hello, world!\n" .!lLj1?p
,!,M'<?"
=oiz@Q @H
Scheme y0?HZ Xq
(display "Hello, world!") qe
e_wx
(newline) cH:&S=>h
iPG:w+G
'L9hM.+
sed (需要至少一行输入) +eKLwM
sed -ne '1s/.*/Hello, world!/p' #4"eQ*.*"
Sd.Km a
(~5]1S}F
Smalltalk /F|VYl^_
Transcript show: 'Hello, world!' 8cMX=P
`)KGajB
MF*4E9Ue.
SNOBOL L\bcR
OUTPUT = "Hello, world!" 9B83HV4J
END :f_oN3F p
#uC}IX2n
%z-s o?gF
SQL -byaV;T?"
create table MESSAGE (TEXT char(15)); hgDFhbHtd6
insert into MESSAGE (TEXT) values ('Hello, world!'); >o&%via}
select TEXT from MESSAGE; ?8< =.,r
drop table MESSAGE; I0x;rP
S5Pn6'w
y@2"[fo3~
Tcl g`.H)36
#!/usr/local/bin/tcl ~ oq.y n/1
puts "Hello, world!" hBaG*J{
{-]K!tWda
;p<BiC$b
TScript iyUnxqP
? "Hello, world!" ,+C?UW
w}(pc}^U
=,qY\@fq
Turing iYw1{U
put "Hello, world!" O*]}0*CT
0(Z:QqpU$
e.XD5~Ax
UNIX-style shell QK #qW-49O
程序中的/bin/sh可改为您使用的shell 3i4m!g5Z?
Ad3TD L?
#!/bin/sh 5
I#-h<SG
echo 'Hello, world!' gXn`!
gQu!(7WLI
K$:btWSm
GUI >){}nlQf
M_cm,|FF
Delphi 4@mJEi{
program HelloWorld; U;u4ey
uses #(a ;w
Dialogs; (6[/7e)
begin l>BM}hS
ShowMessage('Hello, World!'); OS>%pgv
end. v/$<#2|
U%#Vz-r
Z?9G2<i
Nuva \)aFYDq#\
<. j':<7n/A
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) Pd
`~#!
.> xH,e$t#@@~
0lOan
|m*l/@1
Visual Basic $DnJ/hg;qD
MsgBox "Hello, world!" !B9Yw/Ba
'或者 )MoHY
Print "Hello, world!" :iQJ9Hdz
<1x u&Z7
:8N
by$#V
Visual FoxPro w6lx&K-
? "Hello, world!" V;)+v#4{
L7xiq{t`Y
9j-;-`$S
X11 M9~'dS'XI
用一个程序 R]>0A3P
d:cOdm>,
xmessage 'Hello, world!' GlJOb|WOX
4[%_Bnv#AJ
用C++和gtkmm 2 B_8JwMJu3
y0) mBCX
#include <iostream> [L| vBr
#include <gtkmm/main.h> )`gxaT>&l
#include <gtkmm/button.h> H3iYE~^#
#include <gtkmm/window.h> {S@,
,
using namespace std; h+YPyeAs
&=T>($3r94
class HelloWorld : public Gtk::Window '*&V7:
{ wLE|J9t%Ea
public: o{hZjn-
HelloWorld(); 3(*vZ
virtual ~HelloWorld(); mOyNl
-f
protected: w=ufJRj
Gtk::Button m_button; Zba<|C
virtual void on_button_clicked(); LCH w.
}; fNyXDCl
q 4Ok$~"I
HelloWorld::HelloWorld() : m_button("Hello, world!") }h3[QUVf%
{ *kj+6`:CPs
set_border_width(10); ox";%|PP1
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); K,P`V
&m?
add(m_button); ~0Zy$L/D
m_button.show(); AnZy
oa
} `J7@G]X;2
}<'ki
;
HelloWorld::~HelloWorld() {} tv]9n8v
{8%KO1xB
void HelloWorld::on_button_clicked() !SLfAFcS
{ P.^*K:5@
cout << "Hello, world!" << endl; %_>8.7
} ^0(D2:E
ChNT;G<6$
int main (int argc, char *argv[]) ,d^H Ag^j
{ ;vk>k0S
Gtk::Main kit(argc, argv); Ca/N'|}^
HelloWorld helloworld; +*eVi3
Gtk::Main::run(helloworld); <0Gk:NB,
} - xyY6bxL
nVP|{M
Udjn.D
Java jG#e%`'
import java.awt.*; ^ZBTd5t#
import java.awt.event.*; /}eb1o
%hz5)
public class HelloFrame extends Frame Y%(8'Ch
{ 3_{rXtT)'
HelloFrame(String title) Cw5B
p9
{ @j(2tJ,w
super(title); 6"r _Y7%
} :/>Zky8,k
public void paint(Graphics g) {aU|BdATI
{ F"'
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super.paint(g); T w1&<S
java.awt.Insets ins = this.getInsets(); wRX#^;O9?>
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); 'Awd:Aed5
} DTd qwe6pi
public static void main(String args []) <J}JYT
{ =66'33l2
HelloFrame fr = new HelloFrame("Hello"); 8\?H`NN
Z:,`hW*A6
fr.addWindowListener( }+)q/]%
new WindowAdapter() e%=SgXl2t
{ 4`+R
|"4
public void windowClosing(WindowEvent e) =&: |a$C
{ g6?5
System.exit( 0 ); N{a=CaYi+
} WZviC_
} $L'[_J
); F$YT4414
fr.setResizable(true); #3FsK
fr.setSize(500, 100); 1V,DcolRY
fr.setVisible(true); sP>-k7K.
} v*OT[l7
} ))7CqN
rWN%j)#+
VwLo
Java Applet )3 '8T>^<K
Java Applet用于HTML文件。 -O $!sFmY
E$v!Z; A
HTML代码: I 6L3M\+-
iBY16_q
<HTML> j:HIcCp
<HEAD> ahN8IV=+Gm
<TITLE>Hello World</TITLE> ;2aPhA
</HEAD> be(hY{y`
<BODY> "z*?#&?,
8 9maN
HelloWorld Program says: !&{"tL@.
E>u U6#v
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> VMu?mqEa
</APPLET> m mH
xPd
K}Q:L(SSr\
</BODY> Fj`K$K?
</HTML> {_Fh3gjb/
Ia[<;":U
Java代码: mPo.Z"uy7
gz Dfx&.0
import java.applet.*; |[)pQGw
import java.awt.*; ?YF2Uc8z%2
Z~;rp`P
public class HelloWorld extends Applet K[Vj+qdyl
{ {}H/N
public void paint(Graphics g) >H,E3Z
{ ofs'xs1C
g.drawString("Hello, world!", 100, 50); \9R=fA1 8
} =tGRy@QV'\
} UC.kI&A
4)p ID`
,@zw
java script *rYPjk6g[
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。 /^WOrMR
A~<cp)E
<script language="java script"> z0|-OCmL
function helloWorld() ]VS:5kOj`
{ sg4(@>
alert("Hello World"); RW<4",
} &