“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。 d~/q"r 1"
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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》。 UK$ms~H
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以下是用不同语言写成的Hello World程序的几个例子: ^ K7ic,{
Ada %.<H=!$
with Ada.Text_Io; use Ada.Text_Io; =/u%c!
procedure Hello is pG34Qw
begin :}h>by=
Put_Line ("Hello, world!"); rQOWLg!"
end Hello; t~e<z81p
~_9n .C
b{d4xU8'
汇编语言 n:0}utU4
< -uc."6\
x86 CPU,DOS,TASM 'Q
=7/dY3I
MODEL SMALL 2+cNo9f
IDEAL ik"sq}u_]E
STACK 100H l"q1?kaVg
/erN;Oo%<
DATASEG ed!:/+3e/
HW DB 'Hello, world!$' zF@o2<cD@
s-Aw<Q)d
CODESEG :LWn<,4F&
MOV AX, @data Qd_Y\PzS
MOV DS, AX yMZHUd
MOV DX, OFFSET HW QDTBWM%
MOV AH, 09H 8>7RxSF
INT 21H b1gaj"]
MOV AX, 4C00H Z<#hS=eY
INT 21H CvPioi
END BaO1/zk
u>Rb
?`
xy8#2
x86 CPU,GNU/Linux,NASM ~
^>417>
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). RQkyCAGx
;Enter this into "hello.asm" then type: $55U+)C<
;"nasm -f elf hello.asm" X; 5Jb
;"ld hello.o -o hello" k-E{d04-2
;"./hello" dLvJh#`o
&m {kHM
section .data ;data section declaration )-Ej5'iHr
msg db 'Hello World!',0AH X53mzs
len equ $-msg ;string length x$wd
O
T#
lP!c
section .text ;code section declaration ~1*A
global _start ;entry point (start of execution) !mRx$
%ul
_start: mov edx,len ;string length q8Nn%o=5V
mov ecx,msg ;string start nx:KoB"ny
mov ebx,1 ;file handle: stdout FP#FB$eP
mov eax,4 ;sys_write .lBgp=!
int 80h ;kernel system call 1[E#vdbT
4Hb $0l
mov ebx,0 ;return value <]Wlx`=/D
mov eax,1 ;sys_exit _1*7Z=|
int 80h ;kernel system call 1`LXz3uBe
Vvt ;
Kzb`$CGK
x86 CPU,Windows,MASM32 ?(
=p<TUw
.386 Nwc!r(
.model flat,stdcall joXfmHB}
option casemap:none 16X@^j_
;Include 文件定义 8ZcU[8r
include windows.inc J9%@VZut
include user32.inc ++}\v9Er
includelib user32.lib GIftrYr
include kernel32.inc |!H?+Jj:
includelib kernel32.lib C#i UP|7hh
;数据段 {%.Lk'#9
.data 4KI [D{
szCaption db 'A MessageBox!',0 xU
S]P)R
szText db 'Hello,world!',0 pi5GxDA]
;代码段 ~AG$5!
.code ]h!`IX
start: [4+q+
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK 3+xy4G@L
invoke ExitProcess,NULL fd8!KO
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> VW@ x=m
end start t` 8!AhOgc
}wwe}E-e
K"<*a"1I
AWK JR9$.fGJ
BEGIN { print "Hello, world!" } (QB+%2v
`@`1pOb
Qn:kz*:
BASIC PzZZ>7_6S
传统版BASIC(例如GWBASIC): XM|%^ry
i3mAfDF
10 PRINT "Hello, world!" b-@\R\T
20 END 7S$&S;
PT9v*3Bq~
或在提示符输入: |%D%0TR&Q
Zg:gY"^
?"Hello, world!":END 7m9"8
O'NW
Ebl/
现代版BASIC(例如Quick BASIC): c 5`US
68R1AqU_
Print "Hello, world!" H]31l~@]
IeF keE
以下的语句在Quick BASIC中同样有效: ~VTs:h
Y7U&Q:5'
? "Hello,world!" Uh|>Skic4
GZ}/leR
Di Or{)a
BCPL ohc1 ~?3b
GET "LIBHDR" Bmo$5$
VjbG(nB?_
LET START () BE :Gh~fm3}
$( ad n|N
WRITES ("Hello, world!*N") \&}G]
$) 0O2n/`'
sI 4yG
U!e6FHj7
Befunge Az,-
Cq
"!dlrow olleH">v MZ#T^Y
, .dq
"k
^_@
N<JHjq
rUwE?Ekn/
o*ANi;1]&B
Brainfuck %*)2s,8
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< W"hcaa,&
+++++++++++++++.>.+++.------.--------.>+.>. !rTmR@e$/
(:\LWJX0=
(paf2F`~#
C S7n"3.k
#include <stdio.h> yu&Kh4AP
8SnS~._9
int main(void) .Gb+\E{M
{ *j*Du+
printf("Hello, world!\n"); 45}v^|Je\
return 0; s&*yk p
} ilEi")b=
b; 9n'UX\
}uX|5&=~f
C++ kI*Uk M-
#include <iostream> K5ZnS`c;
;R[&pDx
int main() zp=!8Av
{ Ly(P=M>"y
std::cout << "Hello, world!" << std::endl; `?o=*OS7Y
return 0; H`<?<ak6'M
} sm s1%%~
R]b! $6Lt
bY#;E;'7
C++/CLI _|n=cC4Qu
int main() U6WG?$x
{ c<qe[iyt/
System::Console::WriteLine("Hello, world!"); VEh]p5D
} RR>G]#k
N&;\PfG
Etmo78e
C# (C Sharp) UR>_)*
class HelloWorldApp n@B{vyy
{ qw:9zYG}qW
public static void Main() rB]W,8~%
{ *Wyl2op6
System.Console.WriteLine("Hello, world!"); 0#|7U_n
} yMIT(
} =Nl5{qYz^&
~8Sqa%F>
k@qWig
COBOL hhq$g{+[
IDENTIFICATION DIVISION. nN{dORJlx
PROGRAM-ID. HELLO-WORLD. QTh0SL
;?im(9h"v!
ENVIRONMENT DIVISION. #)i&DJ^Y
aG3k4
DATA DIVISION. 5u pShtC
4%bTj,H#
PROCEDURE DIVISION. I#l;~a<9z
DISPLAY "Hello, world!". >_#)3K1y8
STOP RUN. g.*&BXZi
P06.1
(Nt[v;BnO
Common Lisp mq`5w)S)\o
(format t "Hello world!~%") T0L+z/N_m.
ku3D?D:V
8xo;E=`
DOS批处理 u&3EPu
@echo off @f=RL)$|
echo "Hello, world!" vb}/@F,Q5
nL;K|W
XqFu(Lm8=
Eiffel Gm@iV,F%R
class HELLO_WORLD T{ nQjYb?
wG:$6
creation ib Ue*Z["1
make F^TAd
feature LV=^jsQ5
make is -R@JIe_28f
local DB Xm
io:BASIC_IO lQr6;D}+
do -RCv7U`
!!io !d|8'^gc
io.put_string("%N Hello, world!") j&llrN
end -- make AFtCqq#[
end -- class HELLO_WORLD vcOsq#UW
B}k'@;G
'^lUL) R
Erlang `wV|q~
-module(hello). +QupM
-export([hello_world/0]). ^^Bm$9
Uf[T _
hello_world() -> io:fwrite("Hello, World!\n"). )6C`&Mj
$:]tcY-L9
[,\i[[<
Forth ?7rD42\8H
." Hello, world!" CR hwZ6.
5^o3y.J?P
)ys=+Pz
Fortran p9w%kM?
WRITE(*,10) l)iv\j
10 FORMAT('Hello, World!') %30T{n:
STOP I W8.
END :D^Y?
MyM+C}
cCYl$Ms kZ
HTML 8 +L7E-
<HTML> J2Y 3er
<HEAD> xK=J.>h3
<TITLE> Hello World! </TITLE> IPkA7VhFF
</HEAD> FB.!`%{
<BODY> S^)WYF5
<p>Hello World!</p> yj]ML:n
</BODY> J,`_,T
</HTML> wC(XRqlE
0JrK/Ma3
^h"n03VFA
HQ9+ t3Qm-J}wSB
H "?`JA7~g
B[Ix?V4yy
g!.Ut:8L9
INTERCAL sOjF?bCdO
PLEASE DO ,1 <- #13 \/X{n*Hw?
DO ,1 SUB #1 <- #238 s?~8O|Mu'
DO ,1 SUB #2 <- #112 B5
tx f.
DO ,1 SUB #3 <- #112 /H.(d 4C
DO ,1 SUB #4 <- #0 \ p1K(H
DO ,1 SUB #5 <- #64 T:dX4=z
DO ,1 SUB #6 <- #238 Y+OYoI
DO ,1 SUB #7 <- #26 _u`B3iG
DO ,1 SUB #8 <- #248 Iy6p>z|
DO ,1 SUB #9 <- #168 i)GeX:
DO ,1 SUB #10 <- #24 e%'z=%(
DO ,1 SUB #11 <- #16 vx PDC~3;
DO ,1 SUB #12 <- #158 q!9^#c
DO ,1 SUB #13 <- #52 @OBHAoz%/
PLEASE READ OUT ,1 tu7+LwF7
PLEASE GIVE UP {rtM%%l
x$*E\/zi<!
$8EV,9^U
Java 91U^o8y
public class Hello IsWcz+1n
{ A-X
public static void main(String[] args) Ny]'RS-
{ f<) Ro$
System.out.println("Hello, world!"); (0X,Qwx
} _+}-H'7=
} 5#yJK>a7
HDa~7wE
l@~1CMyN
JSP V@LN
1|
<% `WP@ZSC6
out.print("Hello, world!"); 0,;E.Py?.
%> d*]Dv,#X
NW}>pb9
#>MO]
MIXAL v&k>0lV,^
TERM EQU 19 the MIX console device number ev)rOcOU
ORIG 1000 start address XKpL4]{&q4
START OUT MSG(TERM) output data at address MSG )[e%wPu4e
HLT halt execution v; je <DT
MSG ALF "MIXAL" y21)~
ALF " HELL" 03PN{<
ALF "O WOR" ?"5~Wwp.T
ALF "LD " }R7sj
END START end of the program j` [#Ij
N8Rm})
L*kh?PS;
Nuva L$oia)%t-
<..直接输出..> N |OMj %Uk
Hello, world! CpUI|Rs
D{Hh#x8Y
<..或者..> #
q0Ub-
7}2sIf[I
<. vgU hN_rK
// 不带换行 ?|%\<h@;
? "Hello, world!" N*_/@qM> a
yS1b,cxz
// 或者 HA$^ *qn
))%@@l[
// 带换行 va`l*N5
?? 'Hello, world!' |V5 $'/Y
.> Qx6,>'Qk'
/}h71V!
"R@$Wu53|
OCaml
>reaIBT
let main () = d~togTs1
print_endline "Hello world!";; pDLu +}@
&4w\6IR
V6DBKq
Pascal d,GtH)( s
program Hello; [ u`17hyX
begin *F26}q
writeln('Hello, world!'); .g6PrhzFbk
end. hqhu^.}]
1qB!RIau
T% /xti5$!
Perl >N+bU{s
#!/usr/local/bin/perl -13P 2<i+
print "Hello, world!\n"; WHpUjyBP
_IQU<Za
fPh}l
PHP 8o8b'tW^
<?php b7W=HR
print("Hello, world!"); `:-@E2
?> 1Pw(.8P
!s#'pTZk4
s2(w#n)
Pike t%]^5<+X58
#!/usr/local/bin/pike rL!_&|
int main() uQ)JC7b\
{ %
K9;
qJ5
write("Hello, world!\n"); cu.*4zs
return 0; 4Vb}i[</
} %2rHvF=
=sUl`L+w,L
lRa
3v Ng
PL/I c&| '3i+
Test: procedure options(main); hJC
p0F9O
declare My_String char(20) varying initialize('Hello, world!'); L&!g33J&
put skip list(My_String); q 2_N90u
end Test; &viwo}ls0
QoT3;<r}
~RZJ/%6F
Prolog 8xD<A|
goal Tdk2436=
write("hello,world!"). bo~{<UT
?d>P+).
"2#-xOCO
Python 2$SofG6D}
#!/usr/local/bin/python ]RJb;
print "Hello, world!" `Q1WVd29
q{9X.-]}
#Vn>ue+?
REXX Kc2OLz#
say "Hello, world!" $ +GFOO
6h0U
9rpg1 0/T
Ruby ABq {<2iYN
#!/usr/bin/ruby T/WmS?
print "Hello, world!\n" 7 BnenHD
<y\
Z#z
Y?&DEKFbD
Scheme +s/N@]5nW
(display "Hello, world!") sw=JUfAhy
(newline) qmue!Fv#g
]@ Sc}
O#Zs3k
sed (需要至少一行输入) \CJx=[3(
sed -ne '1s/.*/Hello, world!/p' bCE7hutl
M0Kh>u
xtIehr0{$I
Smalltalk 8XH |T^5
Transcript show: 'Hello, world!' Zy!)8<Cgm'
tz0Ttu=xH
:cmI"Bo
SNOBOL qUDz(bFk/
OUTPUT = "Hello, world!" V ~J2s
END NrI5uC7
ulPrb>i
N?2#YTjR
SQL evg 7d
create table MESSAGE (TEXT char(15)); eF8aB?&"
insert into MESSAGE (TEXT) values ('Hello, world!'); uJ)=+Exii
select TEXT from MESSAGE; f9l<$l
drop table MESSAGE; o
{XwLi
|peMr#
VhH]n yi7D
Tcl aaf_3UH.B
#!/usr/local/bin/tcl $cJN9|$6
puts "Hello, world!" avxn }*:X.
$ )TF,-#x
ExOB P
TScript ]"7DV3_
? "Hello, world!" u7Y'3x,`
Io4:$w
?lET45'
Turing }x#P<d(
put "Hello, world!" wc+N
T956L'.+G
49J+&G?)j
UNIX-style shell 1{Alj27
程序中的/bin/sh可改为您使用的shell 4_m
/_Z0x
]|$$:e^U9
#!/bin/sh Z1V'NJI+
echo 'Hello, world!' 2YE]?!
WKrZTPD'm
X%9xuc
GUI Mly z><
J?Ep Nie
Delphi MVeQ5c(
program HelloWorld; J6["j
uses jC Kt;lj
Dialogs; ndCS<ojcBP
begin i!d7,>l+Q~
ShowMessage('Hello, World!'); 7 NB"oU^h%
end. 1=q?#PQ
/o1)ZC$
Ni@e/|
2b
Nuva :UhFou_D4l
<. +/>YH-P=
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 4gv XJK-
.> 'G3OZj8
> ^v8N
u$%#5_k
Visual Basic [A..<[
MsgBox "Hello, world!" |phWK^
'或者 (Y.$wMB
Print "Hello, world!" <<2b2?aS`
{!g.255+
V\M!]Nnxr
Visual FoxPro 'y M:WcN
? "Hello, world!" vs0H^L
;~Gpw/]5E
CU>K
X11 ZesD(
用一个程序 >'|xQjLl
/L|}Y242
xmessage 'Hello, world!' <9@]|
5WNg+
用C++和gtkmm 2 vBn=bb'W
SQKY;p
#include <iostream> S7~F*CGBh
#include <gtkmm/main.h> 6% y)
#include <gtkmm/button.h> vS t=Ax3]
#include <gtkmm/window.h> $9i5<16
using namespace std; XX[Wwt
WJSHLy<a
class HelloWorld : public Gtk::Window s^t1PfP(,
{ $9_.Q/9>
public: $}UJs <-F
HelloWorld(); ihBl",l&Hq
virtual ~HelloWorld(); <:{[Zvl'k
protected: [ 6o:v8&3
Gtk::Button m_button; q\HBAry
virtual void on_button_clicked(); 8}#Lo9:,d
}; m',_kY3
'=b&)HbeK
HelloWorld::HelloWorld() : m_button("Hello, world!") -0r"#48(%
{ E)_!Hi0<s
set_border_width(10); vlN. OQ
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); P[P72WR
add(m_button); So 6cm|{
m_button.show(); [;#.DH]
} %^%-h}1
&CmkNm_B
HelloWorld::~HelloWorld() {} GN;XB b]w
=i5:*J
void HelloWorld::on_button_clicked() UuqnL{
{ 8kc'|F\
cout << "Hello, world!" << endl; .x$T al
} /~rO2]rZ@
[pWDhY
int main (int argc, char *argv[]) *4^]?Y\*
{ [<fLPa
Gtk::Main kit(argc, argv); 8'xnhV
HelloWorld helloworld; ,0~
{nQ j]
Gtk::Main::run(helloworld); 8Bt-
} =XBXSW8)DJ
x-#9i
Mh.eAM8 _
Java R:R@sU
import java.awt.*; -*q2Y^A^l
import java.awt.event.*; bfI -!,
u
R%R]X
public class HelloFrame extends Frame }0nB'0|y
{ U?ic$J]N
HelloFrame(String title) ?~Ed
n-"Y
{ \fR:+rbQ&|
super(title); &q}@[
)V4
} 0S7Isk2W
public void paint(Graphics g) nN\XVGP,t
{ M)pi)$&c
super.paint(g); BBJ]>lQ
java.awt.Insets ins = this.getInsets(); %` [`I>
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); +\oHQ=s>}\
} molowPI
public static void main(String args []) hJ*E"{xs
{ ~S>ba']
HelloFrame fr = new HelloFrame("Hello"); ![!b^:f
*g41"Cl
fr.addWindowListener( wP':B
AQ4U
new WindowAdapter() -*l[:5m
{ KdpJ[[Ug/
public void windowClosing(WindowEvent e) ZL@DD(S-/
{ ye7&y4v+
System.exit( 0 ); N,,2VSUr
} <_q/ +x]8
} j2qfEvU
); .u;TeP
fr.setResizable(true); P]x+Q
fr.setSize(500, 100); iC+H;s5<
fr.setVisible(true); o5x^ "#
} /0B?3&H
} {lUl+_58
;1k0o.3
}t-|^mY>
Java Applet wSyu^KDz
Java Applet用于HTML文件。 qTMz6D!Q
?8}jJw2H
HTML代码: p%
%Y^=z
Qu\l$/
<HTML> 5o ^=~
<HEAD> c qyh#uWe
<TITLE>Hello World</TITLE> [
=2In;
</HEAD> Du4#\OK
<BODY> ^Jc0c)*
6b01xu(A[
HelloWorld Program says: r3vj o(
XRz6Yf(/
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> m8^2k2
</APPLET> H=RV M
&D w~Jq|
</BODY> ]~Qk g+>'&
</HTML> /iuNdh
GZX!iT
Java代码: :uDB3jN[
N,Bs% p#1
import java.applet.*; qM !q,Q
import java.awt.*; )II,HT-LY
*)D*iU&
public class HelloWorld extends Applet kP@OIhRe
{ OSIp
public void paint(Graphics g) R0d|j#vP
{ S
IK{GWX
g.drawString("Hello, world!", 100, 50); M=`Se&-M
} O;?~#E<6w
} Bcon4
@il}0
CW YJ<27v{
java script B[X6AQj}d
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。 I|;#VejX
94@!.11
<script language="java script"> yuX0Y{:I
function helloWorld() DP]|}8~L
{ {~h\;>
alert("Hello World"); W)hby`k
} Sd6^%YB
</script> [KJL%u|8/
/n:fxdhe
<a href="java script:this.location()" rNC3h"i\
onclick="java script:helloWorld();">Hello World Example</a> ra2q. H
)ix E
Nq6CvDXi
PostScript !P3|T\|]+
PostScript是一种专门用来创建图像的语言,常用于打印机。 M0
8Y
oU? X"B9
/font /Courier findfont 24 scalefont RR=l&uT
font setfont %BLKB%5
100 100 moveto h!~yYNQ"
(Hello World!) show !:{_<