“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。 %yhI;M^
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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》。 `vX4!@Tw
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以下是用不同语言写成的Hello World程序的几个例子: w`-$-4i
Ada U#"WrWj
with Ada.Text_Io; use Ada.Text_Io; g-eq
procedure Hello is T0?uC/7H
begin NxB+?
Put_Line ("Hello, world!"); vnVZJ}]w\
end Hello; -fQX4'3R
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汇编语言 /.)2d8,
N1s.3`
x86 CPU,DOS,TASM u#!GMZJN
MODEL SMALL *+W6 P.K
IDEAL ;"SZ}
STACK 100H oB}K[3uB:t
%t{Sb4XZ4k
DATASEG We\Y \*!v
HW DB 'Hello, world!$' A?'
H[2]w"
&/DOO ^
CODESEG i\vpGlx
MOV AX, @data Z?C4a}
MOV DS, AX DA=qeVBg
MOV DX, OFFSET HW &58 {
MOV AH, 09H IO6MK&R
INT 21H #AvEH=:
MOV AX, 4C00H -[<vYxX:h:
INT 21H K+-z Y[3
END F'ENq6
&|NZ8:*+#
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x86 CPU,GNU/Linux,NASM 'DeW<Sa~
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). a>?p.!BM
;Enter this into "hello.asm" then type: LhZZc`|7t
;"nasm -f elf hello.asm" YPG,9iZ&f
;"ld hello.o -o hello" <oZ(n g@X
;"./hello" A$N+9n\
IuDT=A
section .data ;data section declaration &p)@8HY
msg db 'Hello World!',0AH 1oB$u!6P
len equ $-msg ;string length qz87iJp&
+`9yZOaC#
section .text ;code section declaration >mew"0Q
global _start ;entry point (start of execution) pqOA/^ar
_start: mov edx,len ;string length nrF!;:x
mov ecx,msg ;string start D| [/>x
mov ebx,1 ;file handle: stdout rI *!"PL
mov eax,4 ;sys_write ~R'BU=!;F
int 80h ;kernel system call +R9%~Z.=
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mov ebx,0 ;return value Fdr*xHx$P
mov eax,1 ;sys_exit 2*Va9HP!q
int 80h ;kernel system call a" ^#!G<+
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gh'kUZG
a
x86 CPU,Windows,MASM32 xSdN5RN
.386 LH,]vuXh
.model flat,stdcall E`(5UF*>
option casemap:none @|E;}:?u
;Include 文件定义 \u{Jf'g
include windows.inc R
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include user32.inc Kyu@>9Ok
includelib user32.lib ,cPkx~w0
include kernel32.inc [6G=yp
includelib kernel32.lib j6RJC
;数据段 Lblet
.data J-b~4
szCaption db 'A MessageBox!',0 h)7v1,;w'
szText db 'Hello,world!',0 $1b]xQ
;代码段 }+*w.X}L
.code 3_C98ClE
start: /i> ?i@O-
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK 3Hy%SN(
invoke ExitProcess,NULL L,E-z_<p
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 5d> nIKW
end start @Jkui
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W;q#ZD(;
AWK %N7gT*B:
BEGIN { print "Hello, world!" } 1bT'u5&
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BASIC -|6V}wHg~
传统版BASIC(例如GWBASIC): KBd7|,j
0&.LBv8
10 PRINT "Hello, world!" .mC~Ry+t
20 END CQj/e+eE4
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或在提示符输入: hcd!A5
<zfO1~^
?"Hello, world!":END =VCi8jDkP
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现代版BASIC(例如Quick BASIC): +GRxHuW,
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Print "Hello, world!" L-`(!j
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以下的语句在Quick BASIC中同样有效: qw9e)
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9 )ACgz&(
? "Hello,world!" v!nm
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N-]\oMc2
N9`y,Cos0
BCPL X@i+&Nv"<
GET "LIBHDR" rat=)n)"t
'Na|#tPYI
LET START () BE (qNco8QKu3
$( m}; ~JMo]
WRITES ("Hello, world!*N") s.<olxXRW
$) I/u'bDq
58M'r{8_
I[tAT[ <
Befunge >&*6Fqd
"!dlrow olleH">v 0Ei\VVK>
, +I^+k "
^_@ c ,Qw;
tVC@6Z$
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Brainfuck
=~,$V<+c
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< %{N>c:2I$
+++++++++++++++.>.+++.------.--------.>+.>. Rh!L'?C
emGV]A%nss
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C $ iX^p4v
#include <stdio.h> oc!biE`u
Z)C:]}Ex
int main(void) .q
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{ ~,(0h:8
printf("Hello, world!\n"); e-nWD
return 0; Rh wt<
} d)`nxnbMeM
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C++ n,CD4Nv
#include <iostream> l=Lmr
*O"%tp6
int main() =g{_^^n
{ F2Nb5WT
std::cout << "Hello, world!" << std::endl; :6\-9m8JM
return 0; 1C^HCIH7J
} O JZ!|J8?
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C++/CLI >WGX|"!"
int main() m]+X}|
{ aRFi0h
\
System::Console::WriteLine("Hello, world!"); ucIVVT(u
} T{5M1r
4<=eK7;XR
eukX#0/^
C# (C Sharp) z6GL,wo#
class HelloWorldApp mafAC73
{ {|8:U}<#h
public static void Main() 5Ws:Ei{R
{ 842Mydom
System.Console.WriteLine("Hello, world!"); E9~&f^f
} ; Xnk+
} f ~n' Ki+'
G#_(7X&
:epitpJ
COBOL e8WPV
IDENTIFICATION DIVISION.
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PROGRAM-ID. HELLO-WORLD. I1eb31<
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ENVIRONMENT DIVISION. g4BwKENM
B1 jH.(
DATA DIVISION. +iZ@.LI
UgOGBj,&5W
PROCEDURE DIVISION. .HH,l
DISPLAY "Hello, world!". S4@117z5
STOP RUN. ~|$) 1
MSxU>FX0
xc3Ov9`8%
Common Lisp %j
9vX$Hj
(format t "Hello world!~%") 7;$L&X
bUipp\[aV
HbJadOK
DOS批处理 ;&7qw69k
@echo off .{-iq(3
echo "Hello, world!" +#i,87
il `C,CD
YQfZiz}Fv
Eiffel LiHXWi{s
class HELLO_WORLD r`mzsO-'
3V8j>&
creation ]8q%bsl+
make ]ci|$@V
feature \k$]GK-
make is .PA?N{z
local !'6J;Fb#
io:BASIC_IO t&p:vXF2
do $yR{ZFo
!!io JY;#]'T\;
io.put_string("%N Hello, world!") X~<>K/}u5
end -- make 6w .iEb
end -- class HELLO_WORLD 0X}w[^f
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Erlang R, (+NT$
-module(hello). `qYc#_ELv
-export([hello_world/0]). xr1I8 5kM
Si%Eimiq
hello_world() -> io:fwrite("Hello, World!\n"). FrE/K_L
i >/@]2
fu7[8R"{
Forth ;#Crh}~
." Hello, world!" CR $7k04e@]
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M\$<g
Fortran }!J/ 9WKgU
WRITE(*,10) .,iw2:
10 FORMAT('Hello, World!') l*V72!Mv
STOP aV92.Z_Ku
END PHB\)/
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SU_dAh
N]<~NG:6b
HTML _oyL*Cb
<HTML> oeU+?-y/b
<HEAD> k%bTs+]*
<TITLE> Hello World! </TITLE> (HP={MrV
</HEAD> "p_[A
<BODY> p_kTLNZd9
<p>Hello World!</p> 9BgQoK@
</BODY> rqG6Ll`=+
</HTML> 7zOvoQ}
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_ jM6ej<
HQ9+ fSb@7L
H K`AW?p^$Y
BfO}4
_ZvX" {y~
INTERCAL EWvid4QEi
PLEASE DO ,1 <- #13 [+[fD
DO ,1 SUB #1 <- #238 7C6BZ$(
DO ,1 SUB #2 <- #112 %%-Tjw o
DO ,1 SUB #3 <- #112 9"l%tq_
DO ,1 SUB #4 <- #0 nqw*oLFQ
DO ,1 SUB #5 <- #64 Zq6ebj
DO ,1 SUB #6 <- #238 @rDv
(W
DO ,1 SUB #7 <- #26 4h2bk\z-
DO ,1 SUB #8 <- #248 N'1 [t
DO ,1 SUB #9 <- #168 ,'@ISCK^
DO ,1 SUB #10 <- #24 '\3.isTsx
DO ,1 SUB #11 <- #16 DW;.R<8
DO ,1 SUB #12 <- #158 k?_$h<Y
DO ,1 SUB #13 <- #52 ;:K?7wfXn
PLEASE READ OUT ,1 MJk:s[o
PLEASE GIVE UP HoQ(1e$G-
8B(Q7Qj
?eZ"UGZg'
Java boHm1hPKS
public class Hello 8C4@V[sm`
{ OTr!?xi
public static void main(String[] args) 085 ^!AZ
{ m~\m"zJ4
System.out.println("Hello, world!"); #
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} b9!J}hto,
} [+5SEr}
l'X?S(fiV
[O =)FiY-
JSP Ql!6I (
<% eXtF[0f
out.print("Hello, world!"); s</ktPtu
%> iS^^Z ZyR
(5\d[||9g
/-} p7AM
MIXAL dXr
!_)i
TERM EQU 19 the MIX console device number $[9V'K
ORIG 1000 start address PfMOc+ q
START OUT MSG(TERM) output data at address MSG Ay. q)
HLT halt execution % w/1Uo24
MSG ALF "MIXAL" r:b.>5CS)
ALF " HELL" {Eb2<;1o{
ALF "O WOR" ;?[ +vf")
ALF "LD " G;.u>92r|
END START end of the program ZJ'H y5?
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REe%>|
Nuva [}B{e=`!
<..直接输出..> {`SGB;ho
Hello, world! zj0pP{y
D"><S<C\C
<..或者..> &rE l
X\:(8C;+
<. OTbjZ(
// 不带换行 {d5ur@G1
? "Hello, world!" AHg4kG
xn#I7]]G
// 或者 -)c"cgx.
l<:)rg^,
// 带换行 ^.aEKr
?? 'Hello, world!' oHGf |
.> *v-xC5L1\
kT3;%D^
iY`7\/H!L
OCaml =(uy':Dbn*
let main () = K>E!W!-PJ
print_endline "Hello world!";; J};,%q_
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i7E7%~S
Pascal i}12mjF
program Hello; k{&E}:A
begin =cX"gI[
writeln('Hello, world!'); X|0`$f
end. vG=$UUh@~
*`/@[S2,cu
g{.@|;d<p
Perl <\Dl#DH
#!/usr/local/bin/perl 8c'-eT"
print "Hello, world!\n"; |Szr=[
~.=HN}E
oEf^o*5(
PHP $XzlW=3y
<?php )Syf5I
print("Hello, world!"); G\+MT(&5
?> Lr]Hvd
Jywz27j
\^Q)`Lqp:g
Pike n/|`Dz.
#!/usr/local/bin/pike =Qq^=3@h
int main() ?DTP-#5Ba
{ h1d0{
write("Hello, world!\n"); k:yu2dQh
return 0; ?d'9TOlD
} x"=q+sA
X Ow^"=Oa[
Ya{1/AaM
PL/I L{ ^@O0S
Test: procedure options(main); ed2&9E>9b
declare My_String char(20) varying initialize('Hello, world!'); L PgI"6cP
put skip list(My_String); .EELR]`y7I
end Test; |xC
TX
mhSsOmJ5
0p2O8>w^%
Prolog 4B,A+{3yL
goal uw&,pq
write("hello,world!"). #GJh:#tt^
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"+Yn;9
Python YR`rg;n#
#!/usr/local/bin/python !S}Au Mw
print "Hello, world!" @_Oe`j^
u $^`hzfI
_ o3}Ly}
REXX c.> (/
say "Hello, world!" fXQRsL8
]
$+N^ s^
:cz]8~i\
Ruby c3BL2>c
#!/usr/bin/ruby Gi2Ey37]O
print "Hello, world!\n" O/~^}8TLL
f.CI.aozW
^aMdbB
Scheme ~n\ea:.
(display "Hello, world!") I8:&Btf
(newline) }#
^PbM
y=`(`|YW}`
)SLs
[
sed (需要至少一行输入) \C.@ @4{
sed -ne '1s/.*/Hello, world!/p' n[-!Jp[
D'+8]B
bS"M*
Smalltalk {NDe9V5
Transcript show: 'Hello, world!' Ez-o*&
}e @-[RJ!
nJ@hzK.
SNOBOL 8hA=$}y&x
OUTPUT = "Hello, world!" ApBThW*E
END ,6L>f.V^(U
e@By@r&nql
~(S4/d5
SQL "|rqt.f2[
create table MESSAGE (TEXT char(15)); U]$3NIe
insert into MESSAGE (TEXT) values ('Hello, world!'); 1\kehCt
select TEXT from MESSAGE; u'."E7o#
drop table MESSAGE; GC3L2C0)k
iB-s*b<`~
K>eG5tt
Tcl 1=.?KAXR
#!/usr/local/bin/tcl b>EUa> h
puts "Hello, world!" *5)!y
d
>$F]Ss)$
]vErF=[U,
TScript ';F][x 5j
? "Hello, world!" 1>{(dd?L
2N]s}/l
{D#`+uw
Turing xx8na8
put "Hello, world!" V|`|CVFo]
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kRPg^Fw"Vw
UNIX-style shell >AJ|F)
程序中的/bin/sh可改为您使用的shell [l:.Q?? )|
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#!/bin/sh eW%jDsC
echo 'Hello, world!' RdHR[Usm
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GUI 7m:, -xp
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Delphi }XU- JAn
program HelloWorld; UJ:B:hh''
uses j C?
Dialogs; (0S7
begin l<?wB|1'
ShowMessage('Hello, World!'); NBX/V^
end. nc)`ISI
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7O#>N}|
Nuva `314.a6S
<. ,~#hHhR_
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) J)o%83//
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`R RORzXoS
P9vROzXK
Visual Basic 3OlY Ml
MsgBox "Hello, world!" .MlE1n'
'或者 Z)%p,DiNM
Print "Hello, world!" e`^j_VnEH
u.6%n.g
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Visual FoxPro T*m_rDDt
? "Hello, world!" 9`AQsZ2
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X11 , fn=%tiUk
用一个程序 }=gGs
<*P1Sd.
xmessage 'Hello, world!' O/Vue
"/5b3^a
用C++和gtkmm 2 sTDBK!9I
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#include <iostream> 6%-2G@6d
#include <gtkmm/main.h> ,")7uMZaF\
#include <gtkmm/button.h> g=Lt2UIJ
#include <gtkmm/window.h> 2X`M&)"X
using namespace std; Yi`.zm
1Jt%I'C?
class HelloWorld : public Gtk::Window $.Ni'U
{ Er)b( Kk
public: uvL|T48
HelloWorld(); F<[8!^l(z
virtual ~HelloWorld(); n^K]R}S
protected: %~~Q XH\
Gtk::Button m_button; "'Ik{wGc
virtual void on_button_clicked(); EZ4qhda
}; rGs> {-T3
7+"X^$
HelloWorld::HelloWorld() : m_button("Hello, world!") U N/.T
{ Ad `IgZ
set_border_width(10); -SQYr
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); A:f+x|[
add(m_button); \] K-<&f
m_button.show(); Zh@\+1]
} f+&yc'[
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HelloWorld::~HelloWorld() {} 2k_Bo~.
N@}U ;x}
void HelloWorld::on_button_clicked() >:=TS"}yS}
{ 2r,fF<WQ
cout << "Hello, world!" << endl; hjE9[{K
} 9p XFC9
dU,/!|.K
int main (int argc, char *argv[]) \iFE,z
{ (ZYOm
Gtk::Main kit(argc, argv); <qBPN{'a"
HelloWorld helloworld; dZ*o H#B
Gtk::Main::run(helloworld); LBg#KQ@
} )lbF'.i
pmC@ fB
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Java WKG=d]5
import java.awt.*; -}%zus5
import java.awt.event.*; E]
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bpkn[K"(
public class HelloFrame extends Frame 99 ["I:
{ ;$Y?j8g
HelloFrame(String title) 04s N4C
{ f5N~K>
super(title); v [x`I;
} NoMC*",b>
public void paint(Graphics g) 2}NfR8
N
{ M`(xAVl
super.paint(g); sEoS[t|"
java.awt.Insets ins = this.getInsets(); -Jhf]
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); f*Kipgp
} {1o=/&
public static void main(String args []) }V 1sY^C
{ 0t) IWD
HelloFrame fr = new HelloFrame("Hello"); fqcyCu7Ep
-I -wdyDr
fr.addWindowListener( -$7Jc=:>
new WindowAdapter() /<mc~S7
{ \sk,3b-&'
public void windowClosing(WindowEvent e) [-l^,,E
{ yHCc@`1.
System.exit( 0 ); e"vEh
} eu#| |
} m'pihFR:f
); \ .:CL?m#
fr.setResizable(true); 4ngiad6bR
fr.setSize(500, 100); L8V'mUyD
fr.setVisible(true); CTwP{[%Pk
} vOqT Ld
} j1BYSfX'
?}W:DGudZ
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Java Applet w:qwU\U>x
Java Applet用于HTML文件。 .N%$I6w
62W3W1: W
HTML代码: n1H*][CK
lB-Njr
<HTML> })J]D~!p
<HEAD> B$\5=[U
<TITLE>Hello World</TITLE> 9U+^8,5
</HEAD> U*-%V$3+w5
<BODY> kr3ZqMfeI
l!oU9
HelloWorld Program says: '8dqJ`Gj
pPIH`Iq
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> Va1|XQ<CL
</APPLET> I} j!
!
}>grGr%oR
</BODY> pD){K
</HTML> dZZHk
&B))3WFy
Java代码: UPbG_ #"wZ
=~R0U
import java.applet.*; oL<^m?-u
import java.awt.*; &R 0BuFL8
QII>XJ9
public class HelloWorld extends Applet Ngg (<ZN
{ Q 5Ln'La$
public void paint(Graphics g) d~.#K S
{ A0'Yfuie
g.drawString("Hello, world!", 100, 50); b+{yF
} c^m}ep\F5L
} `/0FXb
8h
tf>?;
C3D1rS/I
java script ~V (WD;Mk
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。 k&9
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9D&ocV3QV
<script language="java script"> grv 3aa@
function helloWorld() xNT[((
{ :
G<