“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。 PLX>-7@
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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》。 :YP #
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以下是用不同语言写成的Hello World程序的几个例子: ;Hmp f0$
Ada L\%orLEmK
with Ada.Text_Io; use Ada.Text_Io; 0.TaXbi
procedure Hello is v6GPS1:a
begin i#/]KsSp
Put_Line ("Hello, world!"); !|
#83
end Hello; Jrxz'9qRG
Y}s@WJ
{pL+2%`~
汇编语言 %}-?bHB1c
G2Vv i[c
x86 CPU,DOS,TASM P 43P]M2
MODEL SMALL 0[Ht_qxb
IDEAL 3djC;*,9,
STACK 100H xtfBfA
i,IB!x
DATASEG x/!5K|c
HW DB 'Hello, world!$' gNYqAUG5
UC
HZ2&
CODESEG oGa^/:6L
MOV AX, @data Hc^W%t~
MOV DS, AX tM4Cx
MOV DX, OFFSET HW s{0aBeq
MOV AH, 09H 8NBT|N~N
INT 21H m3bCZ9iE
MOV AX, 4C00H n_?tN\M
INT 21H 3"N)xO-
END vi.w8>CE
[F!Y%Zp
w[tmCn+
x86 CPU,GNU/Linux,NASM }e2VY
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). _>+8og/%@
;Enter this into "hello.asm" then type: ]hos+;4p
;"nasm -f elf hello.asm" +{<#(}
;"ld hello.o -o hello" ^ D%FX!$
;"./hello" ziPR>iz-
YNwp/Y
section .data ;data section declaration km~Ll
msg db 'Hello World!',0AH br-]fE.be
len equ $-msg ;string length AN!s{7V3
:cB=SYcC%
section .text ;code section declaration oVFnlA
global _start ;entry point (start of execution) ;oZ)Wt
_start: mov edx,len ;string length R;,g1m|]
mov ecx,msg ;string start 0:w"M<80
mov ebx,1 ;file handle: stdout eET&pP3Rp
mov eax,4 ;sys_write AIMSX]m
int 80h ;kernel system call R^?/' dr
2c6g>?
mov ebx,0 ;return value |L2SFB?d=
mov eax,1 ;sys_exit ?;[w" `"
int 80h ;kernel system call wLc4Dm*V
1 zw*/dp
Ym%xx!9
x86 CPU,Windows,MASM32 wE+${B03
.386 h8Yx#4
.model flat,stdcall 7d LuX
option casemap:none ;AO#xv+#
;Include 文件定义 IxLhU45
include windows.inc q9Y9w(
include user32.inc .7K7h^*F
includelib user32.lib `]Q:-h
include kernel32.inc V"c
6Kdtd
includelib kernel32.lib =[b)1FUp
;数据段 RuII!}*
.data /1Ue?)g
szCaption db 'A MessageBox!',0 X 1
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szText db 'Hello,world!',0 okbQ<{9
;代码段 DC{>TC[p1k
.code rj(T~d4
start: }gJ (DbnV
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK 93Co}@Y;Y+
invoke ExitProcess,NULL 3EJt%}V$k
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> pe^u$YE
end start ns6(cJ^a
xJ#d1[kzo
;4Y%PVz~D
AWK SkmT`*v@
BEGIN { print "Hello, world!" } :POj6j/
^0/j0]O
;L']e"G
BASIC ZK>WW
传统版BASIC(例如GWBASIC): 5[c^TJ3
0PlO(",a
10 PRINT "Hello, world!" w!fE;H8w6
20 END |PC*=ykT3
j4qJ.i
或在提示符输入: %Dwk
w.[ "p9tc
?"Hello, world!":END YW7b)uYf
>0"+4<72
现代版BASIC(例如Quick BASIC): ^]TVo\,N
/`mks1:pK
Print "Hello, world!" <J^MCqp!v
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以下的语句在Quick BASIC中同样有效: \otWd
4^M
? "Hello,world!" gLOEh6
AvfNwE
y&V@^"`
BCPL 9I4K}R
GET "LIBHDR" rk #sy$
BocSwf;v.
LET START () BE V#iPj'*
$( V,%=AR5
WRITES ("Hello, world!*N") S:OO0<W
$) 6_FE 4RR[
r,h%[JKM
>r !|sC
Befunge $m/)FnU/
"!dlrow olleH">v Ymg|4%O@
, )c)vTZy
^_@ s,]z[qB#$
}hhGu\
Y\No4w ^|d
Brainfuck , GP?amh
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< k7T`bYv
+++++++++++++++.>.+++.------.--------.>+.>. neLAEHV
>U[j]V]
Eea*s'
C Dy:|g1>
#include <stdio.h> >Z'NXha
/ G7vwC
int main(void) B!?%O
{ d>mo~
printf("Hello, world!\n"); * -8&[D0
return 0; Sy0$z39
} R}!:'^
d'NIV9P`j]
UWd=!h^dt
C++ ui/a|Q
#include <iostream> C$XU%5qi
PamO8^!G
int main() 67Th;h*sh
{ u)+8S/ )
std::cout << "Hello, world!" << std::endl; ~kEI4}O
return 0; uFinv2Z'
} ~v|>xqWV
`u&Rsz&^
xD~5UER
C++/CLI DK:o]~n
int main() J^Wa8Q;9lX
{ [J?aD`{#O
System::Console::WriteLine("Hello, world!"); F^];U+J
} kY-N>E:
Z/Dx,zIR
;'#8tGv=
C# (C Sharp) <^5Z:n!q
class HelloWorldApp t*1fLumXR
{ 7`DBS^O]dG
public static void Main()
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{ %[ Z \S0C
System.Console.WriteLine("Hello, world!"); e?8FN. q
} n'E(y)9|
} pL/DZ|S3
1SCR.@k<
{tYZt4!{^
COBOL %N>%!m
IDENTIFICATION DIVISION. !Fd~~v
PROGRAM-ID. HELLO-WORLD. RAgg:3^
8
Hg+H=?
ENVIRONMENT DIVISION. 2fnkw/
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DATA DIVISION. |EX(8y
[\v}Ul
PROCEDURE DIVISION. KBx6NU?;PO
DISPLAY "Hello, world!". =5~jx
STOP RUN. FQ<Ju.
:VRNs
4.[^\N
Common Lisp ,St#Vla
(format t "Hello world!~%") &8Cu#^3
mwHB(7YS,
$P^q!H4D
DOS批处理 < $lCkSx<Q
@echo off YNKHN2E8
echo "Hello, world!" chM%]|gey
yerg=,$_i
a|t$l=|DD
Eiffel %)zodf
class HELLO_WORLD r!_-"~`7E
I9_RlAd
creation ;g+N&)n
make RzE_K'M
feature saBVgSd
make is ]%@M>?Ywc
local +hg3I8q:
io:BASIC_IO . qO@Q =
do 2_HNhW
!!io B~MU^|v
io.put_string("%N Hello, world!") n8~N$tDU
end -- make #Z?A2r!1
end -- class HELLO_WORLD !Xf5e*1IS
`u3EU*~W
y\4L{GlBM
Erlang )~)J?l3{
-module(hello). f-vCm 5f
-export([hello_world/0]). Dp,L/1GQ8
X(
\AB
hello_world() -> io:fwrite("Hello, World!\n"). %g{X ?
h7G"G"
_|kxY'_[8
Forth J=9FRC
." Hello, world!" CR P{kur} T
>JHryS.j$4
j4gF;-m<
Fortran g:g\>@Umo
WRITE(*,10) t3 8m'J :>
10 FORMAT('Hello, World!') I| w"/"U
STOP S 6@u@C
END 4KhV|#-;k
_mqL8ho
)B"jF>9)[
HTML ]sf7{lVT
<HTML> :%tU'w
<HEAD> ~7*.6YnI
<TITLE> Hello World! </TITLE> 6iVxc|Ia
</HEAD> 6M @[B|Q(
<BODY> Ra)3+M!x
<p>Hello World!</p> Y2N>HK0
</BODY> Q 3hKk$Y
</HTML> I667Gz$j5
\=VtHu92=
:C(=&g<]D
HQ9+ ^me-[
5
H q6McG HT
&N2N6&Ta/
;#g"(
INTERCAL U6glp@s
PLEASE DO ,1 <- #13 Q|S.R1L^
DO ,1 SUB #1 <- #238 \FQRNj?'_
DO ,1 SUB #2 <- #112 PS)4 I&;U
DO ,1 SUB #3 <- #112 2V-
16Q'%
DO ,1 SUB #4 <- #0 Z3"%`*Tmq-
DO ,1 SUB #5 <- #64 k^3>Y%^1
DO ,1 SUB #6 <- #238 EU2$f
DO ,1 SUB #7 <- #26 D=q:*x
DO ,1 SUB #8 <- #248 l:
HTk4$0
DO ,1 SUB #9 <- #168 -u6bAQ
DO ,1 SUB #10 <- #24 \:%(q/v"X
DO ,1 SUB #11 <- #16 T,,WoPU8t
DO ,1 SUB #12 <- #158 Sq>dt[7
DO ,1 SUB #13 <- #52 DrKP%BnS
PLEASE READ OUT ,1 |HiE@
PLEASE GIVE UP y`Wty@
<Th6r.#?
yZ0-wI
Java g!g#]9j
public class Hello ,?J!
{ |^&b8
public static void main(String[] args) ePOG}k($/%
{ ],@rS9K
System.out.println("Hello, world!"); C)[,4wt,
} xgwY@'GN
} b1(T4w6
>!eAM )
[^WC lRF
JSP Fco`^kql.D
<% {{$Nqn,pH
out.print("Hello, world!"); %0S3V[4I
%> tURu0`](
5bRJS70M
G)EU_UE9
MIXAL 8zZvht*
TERM EQU 19 the MIX console device number 3@etRd;]Kr
ORIG 1000 start address \\iQEy<i
START OUT MSG(TERM) output data at address MSG H[6:_**?o
HLT halt execution ]~Rho_mq#
MSG ALF "MIXAL" JrJo|0Q
ALF " HELL" ]AINKUI0
ALF "O WOR" O*hDbM2QQw
ALF "LD " Y+kfBvxyf
END START end of the program -$pzl,^ h
aB_F9;IR
EuZ<quwWg
Nuva Z+*9#!?J
<..直接输出..> 9g9HlB&Ze
Hello, world! Xpr?Kgz
z6KCv(zvB
<..或者..> :y'Ah#
,82S=N5V!
<. A!od9W6
// 不带换行 52@C9Q,
? "Hello, world!" /K+r?
]kf
rJ`!: f
// 或者 p)KheLiZ
{ }:#G
// 带换行 1h^:[[!c
?? 'Hello, world!' m]'#t)B_m
.> "IZa!eUW
0pZ4BZdT|
{j{u6i
OCaml ;;!yC
let main () = NxkGOAOE
print_endline "Hello world!";; fe\mL mK9
d2*fLEsF
X:A^<L
~
Pascal _zR+i]9
program Hello; X2#2C/6#u
begin K?6jXJseb
writeln('Hello, world!'); eQ$Y0qH1E
end. !44/sr'
6LvW?z(J
Q)~aiI0
Perl b:U$x20n$
#!/usr/local/bin/perl t;|@o\
print "Hello, world!\n"; @KXV%a'
:N:yLd} &
KN^=i5K+Y
PHP [@&m4 7
<?php %vn|k[nD
print("Hello, world!"); 'f#{{KA
?> ts,ZvY]
V><,UI=,n
RFi
S@.7
Pike 4)S,3G
#!/usr/local/bin/pike e6`Jbu+J<f
int main() jte.Xy~g
{ 0.\/\V:H6
write("Hello, world!\n"); NG=@ -eu
return 0; Df}A^G >X
} *^\Ef4Lh
MR;1
2*p
YDIG,%uv
PL/I ny]?I
Test: procedure options(main); :,3C 0T3r
declare My_String char(20) varying initialize('Hello, world!'); =-0/k;^
put skip list(My_String); )%`c_FL@N=
end Test; WltQ63u
xzdf^Ce
GF"hx`zyJ
Prolog {dhXIs
goal _:ReN_0
write("hello,world!"). -Fi`Z$
Wvq27YK'
B?OFe'*
Python o8 IL$:
#!/usr/local/bin/python WO7z
print "Hello, world!" 8^kGS-+^
/}((l%U E.
u0}vWkn\4
REXX ]P9l jwR
say "Hello, world!" B |5]Jm]
4(#'_jS
1NbG>E#Ol
Ruby R6 y#S&]x
#!/usr/bin/ruby %2}-2}[>
print "Hello, world!\n" ADz ^\
fZ6MSAh
2+RUTOv/d
Scheme VRVO-Sk
(display "Hello, world!") .Hescg/S
(newline) Rm2yPuOU}A
~G)S
[xK3F+
sed (需要至少一行输入) B+$%*%b
sed -ne '1s/.*/Hello, world!/p' E7WK
(
>Ifr [
]>W6
bTK
Smalltalk C+*d8_L
Transcript show: 'Hello, world!' df*#!D7oz
EZgq ?l~5O
cF\;_0u
SNOBOL Ka'=o?'B5
OUTPUT = "Hello, world!" C0sX gM
END Hf%@3X
k)i3
J9..P&c\
SQL ISzqEi
create table MESSAGE (TEXT char(15)); $6#CqWhI
insert into MESSAGE (TEXT) values ('Hello, world!'); ?3/qz(bM
select TEXT from MESSAGE; Je';9(ZK
drop table MESSAGE; gl~ecc
Z< 1
rbul8(1h
Tcl !-g{[19\
#!/usr/local/bin/tcl ]dF
,:8
puts "Hello, world!" 9G9t" {
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.zr-:L5{
TScript $6qh|
>z.
? "Hello, world!" ,xw#NG6
imVo<Je7z(
UI0(=>L
Turing ;RH;OE,A
put "Hello, world!" 2my_ ;!6T[
8mCxn@yV
, |0}<%
UNIX-style shell .14~J6
程序中的/bin/sh可改为您使用的shell Oylf<&knF\
i9rN9Mq?O
#!/bin/sh @g|v;B|{
echo 'Hello, world!' u/UrAqw
@Rg/~\ K
{WJ m
GUI G5{T5#
xv46r=>
Delphi O8f?; ]
program HelloWorld; m\;R2"H%
uses M+-*QyCFK
Dialogs; adlV!k7RG
begin r^2p*nr}
ShowMessage('Hello, World!'); "N;`1ce
end. ?K1/ <PE+
"H2EL}3/]
WEAT01
Nuva
mR!1DQ.\<
<. M|VyV(f
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) HsxVZ.dS
.> GmK^}=frj
+|*IZ:w)
C:GK,?!Jn'
Visual Basic 9U7nKJ+iby
MsgBox "Hello, world!" ,t3wp#E2#
'或者 G%BjhpL
Print "Hello, world!" 2L!u1
V#v`(j%
b}\N;D.{
Visual FoxPro QZ!Y2Bz(4
? "Hello, world!" 6=kEyJT'
L]yS[UN$
{GvJZ!,RCg
X11 ;i4Q|
用一个程序 S Q@y;|(
x;w6na
xmessage 'Hello, world!' CJtcn_.F
G`+T+
用C++和gtkmm 2 A4Ru g\p]
#HYr0Tw6`
#include <iostream> 2{D{sa
#include <gtkmm/main.h>
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#include <gtkmm/button.h> PYQ;``~x
#include <gtkmm/window.h> W=lyIb{?^0
using namespace std; mD/9J5:
@efh{
class HelloWorld : public Gtk::Window "_P;2N6
{ 8<5]\X
public: rW<KKGsRWQ
HelloWorld(); +\x,HsUc"
virtual ~HelloWorld(); [2>yYr s_=
protected: U] ~$g}!)
Gtk::Button m_button; (DJ"WG
virtual void on_button_clicked(); FSP+?((
}; C,wL0Yj[
0;hqIJcE:\
HelloWorld::HelloWorld() : m_button("Hello, world!") >f^r^P
{ Y1L[;)H n
set_border_width(10); dA#Q}.*r
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); Q_1:tW
&
add(m_button); m&xW6!x
m_button.show(); ``V"
D
} WJ$bf(X*
i1UiNJh86
HelloWorld::~HelloWorld() {} A8xvo/n$
P|^f0Rw3.
void HelloWorld::on_button_clicked() 09|K>UC)v
{ >q#rw
cout << "Hello, world!" << endl; _uWpJhCT
} B3: ez
jj
B#exHf8
int main (int argc, char *argv[]) w2;eh]k
{ A mvEf
Gtk::Main kit(argc, argv); }\hVy(\c
HelloWorld helloworld; x`U^OLV
Gtk::Main::run(helloworld); d+<G1w&