“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。 [[T7s(3
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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》。 @Y~gdK
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以下是用不同语言写成的Hello World程序的几个例子: gD$&OkH
Ada Z@Rqm:e
with Ada.Text_Io; use Ada.Text_Io; +;,{`*W+N
procedure Hello is GzEw~JAs
begin .]9`eGVWj
Put_Line ("Hello, world!"); `JIp$
end Hello; f:j:L79}
+kI}O*s
eKP>}`
汇编语言 v9T3=
CW`^fI9H
x86 CPU,DOS,TASM +5fB?0D;
MODEL SMALL CI+)0=`<1B
IDEAL U" @5R[=F-
STACK 100H FC 8<D
W *0!Z:?
DATASEG erI&XI
HW DB 'Hello, world!$' <v ub
Q4
03?ADjO
CODESEG .p{lzI9
MOV AX, @data QXI~Toddj
MOV DS, AX "'BDVxp'w
MOV DX, OFFSET HW I/'>MDB!
MOV AH, 09H {9J|\Zz3
INT 21H )t~ad]oM
MOV AX, 4C00H +sJ{9# 6
INT 21H czw:xG!&
END C,;?`3bH@
.0nT*LF
v~RxtTu
x86 CPU,GNU/Linux,NASM K*^'tltJ
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). -0uGzd+m*
;Enter this into "hello.asm" then type: VK4UhN2
;"nasm -f elf hello.asm" ks$5$,^T2o
;"ld hello.o -o hello" &tkPZ*}#1
;"./hello" QVn2`hr
4FnePi~i
section .data ;data section declaration z:UkMn[
msg db 'Hello World!',0AH ym
p*:lH(
len equ $-msg ;string length [YQtX_;w
/&?ei*z
section .text ;code section declaration r:xg#&"*
global _start ;entry point (start of execution) %AV3eqghCg
_start: mov edx,len ;string length SdufI_'B
mov ecx,msg ;string start 0?R$>=u
mov ebx,1 ;file handle: stdout M|y!,/'
mov eax,4 ;sys_write ;[zZI~wh
int 80h ;kernel system call :A#'8xE/
p-C{$5&
O1
mov ebx,0 ;return value mGz'%?zj
mov eax,1 ;sys_exit tIA)LF
int 80h ;kernel system call b6 g9!
yokZ>+jb
C#&b`
x86 CPU,Windows,MASM32 uPFbKSJj
.386 :U1V 2f'l3
.model flat,stdcall nP=/XiCj
option casemap:none HDo=W qG
;Include 文件定义 U:/_T>f%
include windows.inc NFU=PS$
include user32.inc 7|m{hSc
includelib user32.lib { F0"U=
include kernel32.inc xAsy07J?
includelib kernel32.lib ,!~U5~
;数据段 B]D51R\}VE
.data y9:o];/
szCaption db 'A MessageBox!',0 B*Q.EKD8s
szText db 'Hello,world!',0 ^-}3+YA
;代码段 or`"{wop
.code bF@iO316H
start: 51%<N\>/4
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK .|ZnU]~T
invoke ExitProcess,NULL [s!c c:JR
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I>3G"[t
end start Z=?qf$.}
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*u<@_Oa
AWK [h
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BEGIN { print "Hello, world!" } H%c{ }F
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!91<K{#A{
BASIC PDh1*bf{u
传统版BASIC(例如GWBASIC): p4zV<qZ>e
YwM;G
g3
10 PRINT "Hello, world!" =>h~<88#5
20 END |}roR{gc|
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或在提示符输入: _bq2h%G=8
4VL]v9
?"Hello, world!":END ?9H.JR2s%
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现代版BASIC(例如Quick BASIC): T1b9Zqc)f
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Print "Hello, world!" 0 g(hY:
kjW`k?'s
以下的语句在Quick BASIC中同样有效: CD0SXNi"zH
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? "Hello,world!" @{n2R3)k
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eVWnD,'
U`"nX)$
BCPL J_mpI.^Bsf
GET "LIBHDR" BO ^T
:
"|"bo5M:
LET START () BE ^Sr`)vP
$( {Z|.-~W
WRITES ("Hello, world!*N") e~weYGK
$) *K\/5Fzl
7[V'3
jKu"Vi|j>
Befunge jX{lo
"!dlrow olleH">v T[eTT]Z{Ia
, B)"WG7W E
^_@ 'gE_xn7j
6i\b&
)5X7|*LP
Brainfuck d=wzN3 ;-
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< ,[^P
+++++++++++++++.>.+++.------.--------.>+.>. FUm-Fp
s 4}}MV3X
M ~!*PCd5
C ]}G(@9
#include <stdio.h> n4CzReG
4aZsz,=
int main(void) x<=+RYz#^:
{ O`mW,
printf("Hello, world!\n"); $X-,6*
return 0; `pN]Ykt
} +]|J
12E@9s$Z
'&T4ryq3"
C++ Ef$xum{
#include <iostream> .'7o,)pJ<
"mT~_BsD
int main() Z)7
{e"5d
{ T0RgCU
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std::cout << "Hello, world!" << std::endl; F+L q
return 0; *Xl&N- 04
} o~^hsm[44J
[?Aq#av
fX} dh9
C++/CLI F K={%
int main() (g~&$&pa
{ =UNzjmP503
System::Console::WriteLine("Hello, world!"); l=
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} &g@?{5FP
{v]A`u)
eB!0:nHN
C# (C Sharp) 4 "wuqr|o
class HelloWorldApp G*Z4~-E4*
{ O,xU+j~)
public static void Main() t91v%L
{ N9:xtrJ]_J
System.Console.WriteLine("Hello, world!"); UTmX"Li
} WZ"x\K-;
} "o}3i!2Qr
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=}U`q3k
COBOL 01#a
IDENTIFICATION DIVISION. `N8A{8$qv
PROGRAM-ID. HELLO-WORLD. ~XQN4Tv-
A'6>"=ziP
ENVIRONMENT DIVISION. s'fHhG6
g;eMsoJG
DATA DIVISION. + lU:I
z+NXD4
PROCEDURE DIVISION. #th^\pV
DISPLAY "Hello, world!". f#/v^Ql*
STOP RUN. Ry[VEn>C1
SS@#$t:
m[Px|A5{
Common Lisp HDA!;&NRS
(format t "Hello world!~%") SG;]Vr
_~=X/I R
vXRfsv y
DOS批处理 qS|bpC0x
@echo off 8GV$L~i
echo "Hello, world!" E,u@,= j
7oh6G
N6EH
Eiffel X]tjT
class HELLO_WORLD y7ijT='8
.& B_\*
creation +KrV!Taf
make 9] Uvy|
feature \O^b|0zc
make is $^y6>@~
local DU4NPys]y
io:BASIC_IO [F*t2 -ta
do <<@$0RW
!!io kf~ D m}bV
io.put_string("%N Hello, world!") |u<qbl
end -- make 8BhLO.(<O
end -- class HELLO_WORLD 8 POrD8B
4[9~g=y>
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Erlang oXK`=.\
-module(hello). "+[:\
-export([hello_world/0]). P'KaW u9z
i_)j K
hello_world() -> io:fwrite("Hello, World!\n"). cx&jnF#$
Gc<J x|Q7
gk"S`1>
Forth CY?]o4IV
." Hello, world!" CR w6'o<=
s{2BG9s
UsNr$MO
{
Fortran l=`)yc.
WRITE(*,10) u7UqN
10 FORMAT('Hello, World!') $C##S@
STOP zT6ng#
END 3o%JJIn&
! %S9H2Lv
403%~
HTML `^-?yu@
<HTML> )Mx[;IwE
<HEAD> cYFR.~p
<TITLE> Hello World! </TITLE> JR<#el
</HEAD> :CV!:sUm
<BODY> 57'=Qz52
<p>Hello World!</p> .;u(uB;J6
</BODY> :W_S
</HTML> Wct
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|xG|HJm,
@]1E~
HQ9+ ]F r+cP
H 6d&BN7B
g^26Gb.
hV;Tm7I2
INTERCAL h6}oRz9=g
PLEASE DO ,1 <- #13 ;'{:}K=h
DO ,1 SUB #1 <- #238 C"PN3>x}j
DO ,1 SUB #2 <- #112 m0t5oO
DO ,1 SUB #3 <- #112 f&bY=$iff
DO ,1 SUB #4 <- #0 LyhLPU0^q
DO ,1 SUB #5 <- #64 8XD9fB^
DO ,1 SUB #6 <- #238 ;Z:z'';Lm
DO ,1 SUB #7 <- #26 5m&{f>]T
DO ,1 SUB #8 <- #248 XtRfzqg?K
DO ,1 SUB #9 <- #168 u|<Z};a
DO ,1 SUB #10 <- #24 ;LELC5[*s
DO ,1 SUB #11 <- #16 ELeR5xT
DO ,1 SUB #12 <- #158 k2sb#]-/}
DO ,1 SUB #13 <- #52 6Ii2rEzD
PLEASE READ OUT ,1 6C9KT;6
PLEASE GIVE UP lb2mWsg"
]^Z7w`=%5
Mc oHV]x
Java l]Jk
}.
public class Hello ?|Fu^eR%X
{ fz31di9$
public static void main(String[] args) yc8FEn!)&
{ #M&rmKv)g
System.out.println("Hello, world!"); "\Jq2vM
} T D].*9
} -v8Jn#f
E&}r"rbI
EC&t+"=R
JSP #s{>v$F
<% Za}*6N=?*
out.print("Hello, world!"); "Y}f"X|
%> Q4{%)}2$
GeWB"(t
@xH|(
MIXAL {J%Na&D
TERM EQU 19 the MIX console device number -20o%t
ORIG 1000 start address t }7hD
START OUT MSG(TERM) output data at address MSG GBzC<e#
HLT halt execution H"WkZX
MSG ALF "MIXAL" >};,Byv!%
ALF " HELL" fs&J%ku\
ALF "O WOR" yGT"k,a
ALF "LD " VQU [5C
END START end of the program ^_9 ^iL
h>sz@\{
R[LVx-e7'
Nuva QG?7L_I
<..直接输出..> q@F"fjWBr
Hello, world! D$q"k"
SKuZik_
<..或者..> G]E$U]=9r:
k^Zpb&`Hx
<. nM x0+N1
// 不带换行 {R
`IA|T#k
? "Hello, world!" `!S5FE"-
z}.!q{Q
// 或者 $^
(q0zR~l
7J~6J.m
// 带换行 N#@xo)-H
?? 'Hello, world!' )&1yt4
x6%
.> jV\M`=4IC
kQC>8"
FH)bE#4
OCaml
2_vE
let main () = kMKI=>s+
print_endline "Hello world!";; B/q/sC
{k1s@KXtd
cBmo#:>'
Pascal {.bLh0
program Hello; ,r{*o6
begin '[-gKn
writeln('Hello, world!'); qnW5I_]
end. -))>7skc
'&Q_5\Tn
&YO5N4X~o
Perl =}\]i*
#!/usr/local/bin/perl |~8\{IcZ
print "Hello, world!\n"; WEqHL,Uh]
~ i1w,;(
TUJ]u2J8?
PHP 9r+ `j
<?php [4
g5{eX
print("Hello, world!"); $Bz |[=
?> 4v3y3
4en&EWUr
LoOyqJ,
Pike kOVx]=
#!/usr/local/bin/pike -2v|d]3qG
int main() ZgtW
{ [aO"9
write("Hello, world!\n"); Qo DWR5*^D
return 0; J4j?rLR3p
} MgHyKn'rL
V?Lf&X?
X^_,`H@
PL/I 6]T02;b>/,
Test: procedure options(main); 1)#<nk)I
declare My_String char(20) varying initialize('Hello, world!'); uWx/V+w
put skip list(My_String); 5Ag]1k{
end Test; 1:My8
>gFF>L>
F5:*;E;$
Prolog |1g2\5Re
goal jA=uK6m
write("hello,world!"). 7*'_&0
>+u5%5-wr
n+zXt?{u
Python q5lRc=.b[
#!/usr/local/bin/python zZDG5_$n
print "Hello, world!" YH':cze
.Yha(5(
Q;m
.m2
REXX n9bX[+#d
say "Hello, world!" d#ld*\|
b ";#qVv C
^%go\ C ;
Ruby L2{to f
#!/usr/bin/ruby &`@,mUi{Ac
print "Hello, world!\n" ><\mt
`~@BU
htM5Nm[g
Scheme 9!2KpuWji
(display "Hello, world!") w$Dp m.0(
(newline) q n =6>wP
S_?}H
\VtCkb
sed (需要至少一行输入) E'MMhlo
sed -ne '1s/.*/Hello, world!/p' akd~Z
s4~c>voQB
=b`>ggw#
Smalltalk sB7DF<91
Transcript show: 'Hello, world!' Yo7ctwzdH;
,wX/cUyZ
? ~_%I
SNOBOL ^4s#nf:}
OUTPUT = "Hello, world!" H7l[5ib
END j{p0yuZ)<
B Am{Gb
lV]l`$XI
SQL ld9zOq
create table MESSAGE (TEXT char(15)); '7Te{^<FQ$
insert into MESSAGE (TEXT) values ('Hello, world!'); ?:U6MjlQ"{
select TEXT from MESSAGE; x!I7vs~~zW
drop table MESSAGE; xg3G
"G`)x+<~Z8
&X|z(vSJ$
Tcl c:=Z<0S;
#!/usr/local/bin/tcl 0CTI=<;
puts "Hello, world!" m1+DeXR_g
Yq1 ~"he8
X_%78$N-a`
TScript (%I`EAR
? "Hello, world!" )Xg#x:
-Ep-v4}
ENqJ9%sk7
Turing q=96Ci _a
put "Hello, world!" Yt|{l
={z YcVI
N|7._AR2
UNIX-style shell [dt1%DD`M
程序中的/bin/sh可改为您使用的shell {BKI8vy
N:&^ql4
#!/bin/sh H 5sj%
v
echo 'Hello, world!' +j`*?pPD(.
0|4XV{\qT$
["@K~my~D*
GUI B3I<
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.^Ek1fi.
Delphi DoImWNLo
program HelloWorld; _-^KqNyy
uses bLf }U9
Dialogs; I^lb;3uR
begin !FO||z(vb
ShowMessage('Hello, World!'); L0uN|?}
end. }|A%2!Q}
m\jp$
K3\U'bRO
Nuva 81aY*\
<. 9nd'"$
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) m3,]j\
.> WH'[~O
D+"5R5J",
b`%/*
Visual Basic =\_MJ?A$
MsgBox "Hello, world!" Y{2\==~
'或者 WU}JArX9
Print "Hello, world!" 1Rwk}wL
8HTV"60hTs
*a+~bX)18
Visual FoxPro v( (fRX.`
? "Hello, world!" >Wy@J]Y#
"-^TA_XfI
8tPq5i
X11 LI(Wu6*Y
用一个程序 ZEHz/Y%
HM--`RJ
xmessage 'Hello, world!' WvN5IHo 8i
w9z((\5
用C++和gtkmm 2 V&NOp
PsLuyGR.<
#include <iostream> kGX`y.-[
#include <gtkmm/main.h> ]36 R_Dp
#include <gtkmm/button.h> @KNp?2a
#include <gtkmm/window.h> HtS:'~DYo
using namespace std; Po=)jkW
v#D9yttO{
class HelloWorld : public Gtk::Window f*kT7PJG
{ WvNX%se]3
public: GD.mB[f*
HelloWorld(); ^9"|tWf6O
virtual ~HelloWorld(); 0$* z
protected: {P-KU RQ
Gtk::Button m_button; nG{jx_{`
virtual void on_button_clicked(); #!9aTp).AL
}; jskATA
/
j'CRm5O
HelloWorld::HelloWorld() : m_button("Hello, world!") i>0I '~V
{ vZ$uD,@;.
set_border_width(10); Fi(_A
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); _vvnxG!x&
add(m_button); RH>b,
m_button.show(); sStaTR{
} hGD7/qTN
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HelloWorld::~HelloWorld() {} ~D<o}ItRF
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void HelloWorld::on_button_clicked() 7P:0XML}
{ ma?569Z8~0
cout << "Hello, world!" << endl; xzIs,i}U
} 56&s'
3"!2C,3c#
int main (int argc, char *argv[]) f{WJM>$:
{ kB"Sh_:m
Gtk::Main kit(argc, argv); "t`r_Aw
HelloWorld helloworld; ~SP.&>Q>
Gtk::Main::run(helloworld); fy9{W @E3p
} O)&xT2'J
RiaO`|1
Lg_y1Mu7o
Java Zdj~B1
import java.awt.*; B,|M
import java.awt.event.*; J'^BxN&
:h*20iP
public class HelloFrame extends Frame x-CYG?-x
{ Z(*nZT,
HelloFrame(String title) =5I1[p;
{ ]n\WCU]0
super(title); (al7/EhY
} 4
lJ@qhV
public void paint(Graphics g) X1#D}
{ ^*%p]r
super.paint(g); $vlgiJ&f
java.awt.Insets ins = this.getInsets(); qPH]DabpI
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); <74q]C
} @Mt6O_V
public static void main(String args []) % 49@
{ qC.jXU?rO
HelloFrame fr = new HelloFrame("Hello"); eey <:n/Z
>:Xzv
fr.addWindowListener( TBrAYEk
new WindowAdapter() 4x e:+sA.N
{ jr"yIC_
public void windowClosing(WindowEvent e) &