“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。 2 ][DZl
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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》。 V4w=/e_
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以下是用不同语言写成的Hello World程序的几个例子: oA-:zz>wL
Ada #\rwLpC1u
with Ada.Text_Io; use Ada.Text_Io; u,.3
procedure Hello is _"a=8a06G
begin pJIv+
Put_Line ("Hello, world!"); 3(E
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end Hello; "f.Z}AbP
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|,C#:"z;
汇编语言 }WLh8i?_
Av J4\
x86 CPU,DOS,TASM +~zXDBS9
MODEL SMALL ~`MS~,,
IDEAL k"UO c=
STACK 100H l:B;zi`)oB
1`0#HSO
DATASEG #s-iy+/1oN
HW DB 'Hello, world!$' Y-!YhWsS
:a[Ihqfg
CODESEG LaFZ?7@|}
MOV AX, @data 22hSove.
MOV DS, AX V<Z'(UI
MOV DX, OFFSET HW
-T@`hk`
MOV AH, 09H ~EiH-z4U
INT 21H n||A" @b\
MOV AX, 4C00H Dr3n+Q
INT 21H m|tC24
END DbI!l`Vn4
v5}X+'
{lG@hN'
x86 CPU,GNU/Linux,NASM E$s/]wnr[
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). kh$_!BT
;Enter this into "hello.asm" then type: #Il_J\#
;"nasm -f elf hello.asm" PG%0yv%
;"ld hello.o -o hello" R{YzH56M
;"./hello" a
dfR!&J
,U,By~s
section .data ;data section declaration sUkm|K`#
msg db 'Hello World!',0AH 6rti '
len equ $-msg ;string length )KSoq/
K+\nC)oG
section .text ;code section declaration d[gl]tj9
global _start ;entry point (start of execution) "d/s5sP|S
_start: mov edx,len ;string length jR ~DToQ
mov ecx,msg ;string start !v|ISyK
mov ebx,1 ;file handle: stdout IE~%=/|
mov eax,4 ;sys_write F t&+vS
int 80h ;kernel system call >c8GW
>\N
unl1*4e+
mov ebx,0 ;return value @r^!{
mov eax,1 ;sys_exit q}|U4MJm
int 80h ;kernel system call M+>`sj
Oft arD
b]Kk2S/
x86 CPU,Windows,MASM32 -!M,75nU
.386 YB))S!;Ok
.model flat,stdcall Nt`b;X&
option casemap:none FVsj;
;Include 文件定义 83~ i:+;
include windows.inc pcS+o
include user32.inc @ T;L$x
includelib user32.lib fG LG$b
include kernel32.inc @~
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includelib kernel32.lib c~,23wP1
;数据段 U'( sn
.data }ucIH@U{
szCaption db 'A MessageBox!',0 9-1#( Y6S
szText db 'Hello,world!',0 VaZn{z
;代码段 n`Z"rwKmNw
.code f'(l&/4z{
start: GOy%^:Xd
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK 1MsWnSvzf
invoke ExitProcess,NULL '!h/B;*(
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 4Cb9%Q0
end start
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{QaNAR=)
P,pnga3Wu
AWK H!IshZfktn
BEGIN { print "Hello, world!" } 2C^B_FUg|]
LE^G&<!
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BASIC 0'Z\O
传统版BASIC(例如GWBASIC): imL_lw^?
_W!p8cB
10 PRINT "Hello, world!" '(+<UpG_Q}
20 END ^4Am
%yyT
`b5 @}',
或在提示符输入: >RI>J.~
GyI-)BlDC
?"Hello, world!":END %GEJnJ
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现代版BASIC(例如Quick BASIC): t/o N>mQG
"VxWj}+]
Print "Hello, world!" ,{eUP0]
w) ]H ^6
以下的语句在Quick BASIC中同样有效: 4 {GU6v)f
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? "Hello,world!" QrG`&QN
gIEl.
U!5)5c}G
BCPL =nUW'
GET "LIBHDR" 4pU>x$3$
#_
C
LET START () BE &fP XU*l4
$( ~|Y>:M+0Z
WRITES ("Hello, world!*N") &:B<Q$g#
$) B#%;Qc
V_n<?9^4
X2 6
Befunge %bXtKhg5eJ
"!dlrow olleH">v Mn: /1eY
, 7cg*|E@
^_@ -ZOBAG*
d^ ZMS~\*
H&}ipaDO
Brainfuck ^t"iX9
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< #<7O08:
+++++++++++++++.>.+++.------.--------.>+.>. o`,Qku k
%i0?UpA
7B9 `<{!h
C >?W[PQ5 yx
#include <stdio.h> &Bb<4R
@+,pN6}g
int main(void) L];y}]:F*
{ 'WyTI^K9
printf("Hello, world!\n"); ?wpB`
return 0; -_VG;$,jE
} }f>H\iJe
+ bhym+
8t"~Om5sG
C++ )wXuwdc[
#include <iostream> CR<`ZNuWz
v{x{=M]
int main() -]G(ms;}/Y
{ HHk)ZfWRo
std::cout << "Hello, world!" << std::endl;
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return 0; `:{B(+6
} p^m5`{1]x
0Sl]!PZR1
-5G)?J/*
C++/CLI 96Wp!]*
int main() w*j$uW6{
{ CENVp"C/`
System::Console::WriteLine("Hello, world!"); lVH<lp_ZtK
} f,i5iSYf
Zc&&[g
>:sUL<p
C# (C Sharp) tS# `.F~y
class HelloWorldApp 5 +9Ze9
{ :bU(S<%M
public static void Main() Ac k}QzXO
{ f5RE9%.#~
System.Console.WriteLine("Hello, world!"); u?+bW-D'd
} Wa/g`}
} 3M*Bwt;F_
}w-wSkl1
4_M>OD/"
COBOL /BKe+]dS*
IDENTIFICATION DIVISION. 7J$b$P0}
PROGRAM-ID. HELLO-WORLD. {0\,0*^p
Y o0FUj
ENVIRONMENT DIVISION. .~lKBkS`!
{C*\O)Gep
DATA DIVISION. u9-nt}hGYM
6&v?)o
PROCEDURE DIVISION. }`_@'4:t
DISPLAY "Hello, world!". 0O!cN_l|
STOP RUN. [^H"FA[
w&&2H8
'$|UwT`s
Common Lisp 8Q`WB0E<|
(format t "Hello world!~%") [jx0-3s:X
}b3/b
Hq &"+1F
DOS批处理 \~rlgxd
@echo off "+ "{+k5t
echo "Hello, world!" "GT4s?6O
@!=\R^#p
{kI#A?M
Eiffel f}%D"gz
class HELLO_WORLD JM$.O;y
-
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=o,
creation "LhUxnll
make .o{0+fC#
feature -XoP ia2
make is pI`?(5iK6|
local ~.Ik#At
io:BASIC_IO G*
%t'jX9
do wl=61Mb
!!io -OZ 5vH0
io.put_string("%N Hello, world!") ^:, l\Y
end -- make RH0>ZZR
end -- class HELLO_WORLD c2l_$p
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mbl]>JsQD
Erlang y2HxP_s?P?
-module(hello). = 64r:E
-export([hello_world/0]). Eq%@"-mo
D,l,`jv*
hello_world() -> io:fwrite("Hello, World!\n"). %9C@ Xl
B=L&bx
j'%4{n
Forth iItcN;;7
." Hello, world!" CR q*jNH\|
W~T}@T:EN
#PvB/3
Fortran Q3W#`6jpF
WRITE(*,10) aAvsb$
10 FORMAT('Hello, World!') 4wzlJ19E(
STOP Qq-"Cg@-/
END SD\=
m/W
[t\B6XxT
}n,Zl>T9
HTML Myat{OF
<HTML> dth&?/MERL
<HEAD> 5@Bu99`
<TITLE> Hello World! </TITLE> ]36sZ
*
</HEAD> qr\!*\9
<BODY> I<b?vR 'F
<p>Hello World!</p> VvbFp
</BODY> MWk:sBCqr
</HTML> ;#G oGb4AM
jd`},X /
tL
SN`6[:
HQ9+ X8eJ4%
H %b.UPS@I
q}Z3?W
iL{M+Ic
INTERCAL 6Z?j AXGSq
PLEASE DO ,1 <- #13 `[#x_<\t
DO ,1 SUB #1 <- #238 rtJl _0`
DO ,1 SUB #2 <- #112 [mxTa\
DO ,1 SUB #3 <- #112 D-imL;|
DO ,1 SUB #4 <- #0 iyZZ}M
DO ,1 SUB #5 <- #64 {MAQ/5
DO ,1 SUB #6 <- #238 ;32#t[ib
DO ,1 SUB #7 <- #26 Ax3W2s
DO ,1 SUB #8 <- #248 )Ag/Qep
DO ,1 SUB #9 <- #168 !;@_VWR
DO ,1 SUB #10 <- #24 38V3o`f
DO ,1 SUB #11 <- #16 7DW]JK l
DO ,1 SUB #12 <- #158 lor8@Qz
DO ,1 SUB #13 <- #52 3LR p2(A
PLEASE READ OUT ,1 ;Lw{XqT
PLEASE GIVE UP M_0zC1
1xNVdI
7fp(R&)1
Java ,[p
T4G
public class Hello bok.j
{ <BWkUZz\P|
public static void main(String[] args) pZZgIw}aS
{ LgmvKW|
System.out.println("Hello, world!"); fa*Cpt:
} "o!{51!'
} /il@`w;G
#yseiVm;
(LvS
:?T}
JSP $ZPX]2D4B#
<% ;wiao(t>4N
out.print("Hello, world!"); `?*%$>W#"
%> I|oT0y&
31^cz*V
<q)4la
MIXAL 6Q4X6U:WB
TERM EQU 19 the MIX console device number IJOvnZ("A
ORIG 1000 start address rn@`yTw^
START OUT MSG(TERM) output data at address MSG U;_[b"SW%
HLT halt execution 4Ph0:^i_
MSG ALF "MIXAL" vP%tk s+.
ALF " HELL" ~jU/<~s
ALF "O WOR"
\u-0v.+|
ALF "LD " Mj>}zbpk/
END START end of the program js^ ,(CS
~Vh(6q.oT
Bsf7mcXz7z
Nuva F+UG'4%
<..直接输出..> W^,S6!
Hello, world! }*]B-\>
v1U?&C
<..或者..> .%EL \2
Rx07trfN
<. =*BIB5
// 不带换行 {
kSf{>Ia
? "Hello, world!" rjt8fN
;?fS(Vz~
// 或者 .@)mxC:\K9
<mA'X V,
// 带换行 *F^wtH`
?? 'Hello, world!' 9L0GLmLk1u
.> 4rK{-jvh>m
D(W,yq~7uY
`Ycf]2.,$
OCaml R9We/FhOY
let main () = p1pQU={<
print_endline "Hello world!";; u*S=[dq
qIUfPA=/_
%A1@&xrbl
Pascal R;whW:Tx
program Hello; ))D:8l@
begin .D,p@4
writeln('Hello, world!'); g]@(E
end. iO/XhSD
|LG4=j.l
k;PAh>8
Perl 2A`A\19t
#!/usr/local/bin/perl %m,6}yt
print "Hello, world!\n"; ha@L94Lq
@tohNO>
"|Fy+'5}
PHP 0Q,g7K<d
<?php }uHrto3M
print("Hello, world!"); Kemw^48ts
?> GY3 Wj
;rI@*An
5V[oE\B
Pike ulT8lw='
#!/usr/local/bin/pike .JX EK
int main() l5%G'1w#,j
{ e"]8T},
write("Hello, world!\n"); W/z7"#
return 0; x_=n-lAF
} k NqS8R|
z't??6
gXT9 r' k
PL/I .xzEAu ;
Test: procedure options(main); {u{@jp
declare My_String char(20) varying initialize('Hello, world!'); @}_WE,r
put skip list(My_String); 8bK|:B#6,
end Test; !?f5>Bl
_EnwME{@
C$Lu]pIL*
Prolog r0t^g9K0
goal pA.J@,>`}
write("hello,world!"). H~eRT1
!IU.a90V
o56`
Python cUqn<Z<n
#!/usr/local/bin/python I4;A8I
print "Hello, world!" *D4hq=
V6$xcAE"</
0`.^MC?
REXX ^m#-9- `
say "Hello, world!" R_]{2~J+
jdKOb
m^' uipa\
Ruby !g~1&Uw1
#!/usr/bin/ruby 5Dp#u
print "Hello, world!\n" =4uSFK_L
AIb2k
xX3'bsN
Scheme OJT1d-5p
(display "Hello, world!") YzosZ! L!<
(newline) dpQG[vXe
{ pu85'DV
ERwHLA
sed (需要至少一行输入) V^y^
;0I}[
sed -ne '1s/.*/Hello, world!/p' ')a(.f
T@}|zDC#
.)1_Ew
Smalltalk hPq%Lc
Transcript show: 'Hello, world!' kdz=ltw
-?]W*f
#QCphhG
SNOBOL &1%q"\VI
OUTPUT = "Hello, world!" R [H+qr
END )%rg?lI
]v[|B
*"9><lJ-!
SQL 6cqP2!~
create table MESSAGE (TEXT char(15)); bNT9 H`P
insert into MESSAGE (TEXT) values ('Hello, world!'); l1ZY1#%j
select TEXT from MESSAGE; PcB_oG g
drop table MESSAGE; f>BWG`
86@c't@
3mPjpm
Tcl :^UFiUzrE
#!/usr/local/bin/tcl 'c\iK=fl
puts "Hello, world!" I%|>2}-_U
Li*eGlId
bo.(zAz
TScript HM>lg`S
? "Hello, world!" u66XN^
Z*G(5SqUh"
W\1i,ew>
Turing f%5zBYCgC
put "Hello, world!" XC{eX&,2x
\~P=U;l=pO
Lb LiB*D#s
UNIX-style shell MO;X>D =
程序中的/bin/sh可改为您使用的shell e1//4H::t
A+@&"
#!/bin/sh rt
JtK6t
echo 'Hello, world!' H>r!i4l
3_JCU05H}
TW !&p"Us+
GUI (&$VxuJ+6y
!lo/xQ<
Delphi 6c0>gUQx-
program HelloWorld; /0\
mx4u
uses G0E121`h
Dialogs; ,C3,TkA]
begin }kg ye2[
ShowMessage('Hello, World!'); u!1{Vt87
end. M$f7sx
O25lLNmO
8* Jw0mSw
Nuva 8H[:>;SI
<. S/;bU:
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) Y8flrM2CwG
.> ;#w3{
NB
V I%
6.6D
j,]Y$B
Visual Basic RK w$- 7O
MsgBox "Hello, world!" UGK*G y
'或者 %`Z!4L
Print "Hello, world!" NnVnUgx
(sWLhUgRX
G[jW<'f
Visual FoxPro iQ{G(^sZN
? "Hello, world!"
Ov<NsNX]
OR[{PU=X
!!Z?[rj
X11 dz Zb
用一个程序 `~eUee3b.~
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xmessage 'Hello, world!' vloF::1
ftH:r_"O#
用C++和gtkmm 2 KZPEG!-5
B=|cS;bM$3
#include <iostream> X$/2[o#g
#include <gtkmm/main.h> ON+J>$[[
#include <gtkmm/button.h> jt+iv*2N>
#include <gtkmm/window.h> )>BHL3@
using namespace std; $.]l!cmi%Q
86nN"!{l:
class HelloWorld : public Gtk::Window arf8xqR-U]
{ +^;JS3p@\
public: <$JaWL
HelloWorld(); s(W|f|R
virtual ~HelloWorld(); +{/
protected: g}]t[}s1]
Gtk::Button m_button; (h:Rh
virtual void on_button_clicked(); 37}D9:#5C
}; w3$
b+Br=Fv"T
HelloWorld::HelloWorld() : m_button("Hello, world!") `p+Zz"/
{ ToYAW,U[d
set_border_width(10); 47J5oPT2'
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); s=CK~+,/
add(m_button); w6j/ Dq!
m_button.show(); ']+Uu'a
} ?IpLf\n-
(W}bG>!#Q8
HelloWorld::~HelloWorld() {} >rvQw63\
CirZ+o
void HelloWorld::on_button_clicked() 6Cp]NbNrq
{ +
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cout << "Hello, world!" << endl; G8Du~h!!U
} oY, %Iq
Nz)l<S9>
int main (int argc, char *argv[]) u{L!n$D7
{ ElUEteZ
Gtk::Main kit(argc, argv); 6uR^%W8]
HelloWorld helloworld; }NB}"%2
Gtk::Main::run(helloworld); B$Kn1 k
} "yW:\
7%sdtunf`
JfPD}w
Java G}p\8Q}'
import java.awt.*; 'F3)9&M
import java.awt.event.*; qgrg CJ
vx4+QQYP
public class HelloFrame extends Frame mkR2i>
{ #KO,~]k5|e
HelloFrame(String title) 2it?$8#i
{ 3h<,
super(title); ]kboG%Dl?9
} yq$,,#XDD=
public void paint(Graphics g) tor!Dl@Mo
{ aM;W$1h
super.paint(g); ]LM-@G+Jz
java.awt.Insets ins = this.getInsets(); 7x<i :x3
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); jRatm.N
} LW(6$hpPp
public static void main(String args []) +]Y,q
w
{ Tyck/ EO
HelloFrame fr = new HelloFrame("Hello"); A%^ILyU6c
0x!2ihf
fr.addWindowListener( Fgh]KQ/5
new WindowAdapter() QPq7R
{ KZeQ47|
public void windowClosing(WindowEvent e) 0Zg%+)iy@
{ fj&i63?e
System.exit( 0 ); >]c*'~G&