“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。 w2'
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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》。 S;BP`g<l=
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以下是用不同语言写成的Hello World程序的几个例子: ^T=5zqRD
Ada bnIf}ut-G
with Ada.Text_Io; use Ada.Text_Io; ,I=O"z>9
procedure Hello is 6B
/Jp
begin Z"+(LO!
Put_Line ("Hello, world!"); 8XgVY9]Qm
end Hello; eMztjN
=g1 D;
1/!nV
汇编语言 ddl3fl#f
W%w82@'
x86 CPU,DOS,TASM 7~:>WMv9
MODEL SMALL 5t TLMZ `o
IDEAL j_hjCQ
STACK 100H D=<t;+|
qgh]@JJh
DATASEG =y`-sU Hx
HW DB 'Hello, world!$' {XyG1
dr}O+7_7%-
CODESEG g}^4^88=a
MOV AX, @data m79m{!q$-
MOV DS, AX S|tA[klh
MOV DX, OFFSET HW ^j1Gmv)
MOV AH, 09H )_WH#-}
INT 21H UX03"gX
MOV AX, 4C00H 'w: tq
INT 21H hl=oiUf[s
END DM+sjn
Tm0?[[3hC
[sjrb?Xd
x86 CPU,GNU/Linux,NASM M,I68
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). F@oT7NB/n
;Enter this into "hello.asm" then type: jD$;q7fB
;"nasm -f elf hello.asm" |P^ikx6f5
;"ld hello.o -o hello" j@s=ER
;"./hello" &IxxDvP3k
"bLP3
section .data ;data section declaration ~y( ,EO
msg db 'Hello World!',0AH `Nc`xO?
len equ $-msg ;string length 9*"[pt+tA
W5M
]
section .text ;code section declaration QJb7U5:B+
global _start ;entry point (start of execution) @w+WLeJ$40
_start: mov edx,len ;string length Z{Lmd`<w`j
mov ecx,msg ;string start ~]jx+6k]
mov ebx,1 ;file handle: stdout N. ItyV
mov eax,4 ;sys_write i+kFL$N
int 80h ;kernel system call "0p +SZ~D
V7qCbd^>XJ
mov ebx,0 ;return value 1v+JCOy
mov eax,1 ;sys_exit q_OY sg
int 80h ;kernel system call 2X
qPZ]2g
`<.
7?
`\4 RFr$
x86 CPU,Windows,MASM32 e-YGuWGN7
.386 |s)VjS4@
.model flat,stdcall R;5QD`
option casemap:none ?Yynd
;Include 文件定义 /r #b
include windows.inc 7R%
PVgS4x
include user32.inc $sB48LJuU'
includelib user32.lib eA;j/&qH
include kernel32.inc iPR!JX
_
includelib kernel32.lib :Q0?ub]
;数据段 e)fJd*P
.data A?%XO
%
szCaption db 'A MessageBox!',0 3Y.d&Nz
szText db 'Hello,world!',0
!;BZ# tF&
;代码段 |:J*>"sq
.code <lsi.x\y<
start: rF
<iWM=
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK 6z%&A]6k:
invoke ExitProcess,NULL 4DG 9`5.
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> A,-[/Z K/
end start IeqWR4Y
"RR./e)h
uaZ"x&oZ#
AWK ru(?a~lF8~
BEGIN { print "Hello, world!" } q329z>
(9'G
o}j_eHl{
BASIC ,Yiq$Z{qQ
传统版BASIC(例如GWBASIC): U>3%!83kF
$A5B{2
10 PRINT "Hello, world!" ,_e/a
20 END J7&.>y1%
o{YW
或在提示符输入: !/=9VD{U!
=l?"=HF
?"Hello, world!":END qW` XA
W? 6
现代版BASIC(例如Quick BASIC): <Bob#Tf
~
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Print "Hello, world!" NUxAv= xl
.wt>.mUH
以下的语句在Quick BASIC中同样有效: 9phD5b~j
9>}(]T
? "Hello,world!" |{}d5Z"5;}
?$`1%Y9
gn4g 43
BCPL { 8|Z}?I
GET "LIBHDR" _Oaso >
]ZU:%Qhu
LET START () BE KY(l<pm
$( }hObtAS
WRITES ("Hello, world!*N") (pRy1DH~
$) S{`!9Pii
F?+Uar|-a
HCe-]nMd
Befunge o+6^|RP
"!dlrow olleH">v Xoa<r9
, qNuv?.7
^_@ 2C
8L\
*6\`A!C
3ec==.
Brainfuck =c5 /cpZ^
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< Hi4@!]
+++++++++++++++.>.+++.------.--------.>+.>. XQ4^:3Yc
v=yI#5
u0 'pR#
m|
C .-1{,o/&Q
#include <stdio.h> KWZNu&)
8t^;O!
int main(void) +'YSpJ
{ wTgx(LtH
printf("Hello, world!\n"); Vms7
Jay
return 0; /i]=ndAk
} F6neG~Y
%(wsGNd
EssUyF-jwU
C++ -$!Pf$l@
#include <iostream> v'2OHb#
Kw5+4R(5
int main() ah&plaVzC
{ MM58w3Mz
std::cout << "Hello, world!" << std::endl; #VMBn}
return 0; $BO}D
} EF7|%N
gWU(uBS
5GWM
)vrZg
C++/CLI d9e H}#OY
int main() e[VJ0 A=
{ nH3b<k;S
System::Console::WriteLine("Hello, world!"); JD\-X(O
}
;] `NR
3Jk?)Dy
%onAlf<$:^
C# (C Sharp) uhN(`E@
class HelloWorldApp b3HTCO-,fC
{ J|64b
public static void Main() _tauhwu
{ b\uB
System.Console.WriteLine("Hello, world!"); /Z9`uK
} f+W[]KK*PW
} {TN@KB
7_d#XKz@
Zv7$epDUz
COBOL mYs->mg1
IDENTIFICATION DIVISION. G QB^
PROGRAM-ID. HELLO-WORLD. Zo638*32
p=5H^E m1
ENVIRONMENT DIVISION. |(8Hk@\CT>
)bN3-_
DATA DIVISION. `?S?)0B
5t1DB'K9$_
PROCEDURE DIVISION. 5<GRi"7A@
DISPLAY "Hello, world!". )^'B:ic
STOP RUN. moM&2rgdrQ
=rtA{g$)+
a*wJcJTpV"
Common Lisp x jUH<LFxy
(format t "Hello world!~%") -"^WDs
OQb9ijLeK
;cHI3V
DOS批处理 y.]]V"'2
@echo off ((IBaEq
echo "Hello, world!" RlPByG5K
co%_~xO
arH\QPaka'
Eiffel J,M5<s[Xqt
class HELLO_WORLD oP`M\KXau
I z=w2\r
creation Xs,PT
make rls#gw
feature \rnG 1o
make is FoXQ]X7"
local -v+^x`HR
io:BASIC_IO BNm va
do 5 9J$SE
!!io umn~hb5O
io.put_string("%N Hello, world!") %_=R&m'n`
end -- make U=#ylQ
end -- class HELLO_WORLD o 0
#]EMr
U$JIF/MO_
WsDe0F
Erlang R3!vS+5rR
-module(hello). X|B;>q
-export([hello_world/0]). Y/I6.K3
aZCT|M1
hello_world() -> io:fwrite("Hello, World!\n"). `Q^Sm`R
KIl.?_61O
M4PUJZ]
Forth iBW6<2@oZF
." Hello, world!" CR Q3{&'|}^2
e(% Solkm?
/{)cI^9
Fortran o-Fle, qf
WRITE(*,10) /g7?,/vnZ
10 FORMAT('Hello, World!') 6zZR:ej
STOP ]TprPU39
END P&`r87J
~TR|Pv
{hP&P
HTML M{RZ-)IC
<HTML> ?
Z
fhz
<HEAD> 'm? x2$u8
<TITLE> Hello World! </TITLE> fhWD>;%F%
</HEAD> FAl 6
<BODY> u9~J1s<e
<p>Hello World!</p> O;t?@!_
</BODY> G6bg ~V5Q:
</HTML> Vxs`w
tBUQf*B
t"vO&+x
HQ9+ 1)r _h(
H eyjUNHeh#
0\^2HjsJ
p+D6Z'B
INTERCAL sBI%lrO
PLEASE DO ,1 <- #13 !T(Omve)
DO ,1 SUB #1 <- #238 "(VcYQ+
DO ,1 SUB #2 <- #112 = }lA|S
DO ,1 SUB #3 <- #112 eE_XwLE
DO ,1 SUB #4 <- #0 7f,WzvV
DO ,1 SUB #5 <- #64
C2i..iD
DO ,1 SUB #6 <- #238 ?G w89r
DO ,1 SUB #7 <- #26 <&Xq`i/(
DO ,1 SUB #8 <- #248 '+tT$k
DO ,1 SUB #9 <- #168 ,WK$jHG]
DO ,1 SUB #10 <- #24 fsuvg jlE
DO ,1 SUB #11 <- #16 yyDBW`V((
DO ,1 SUB #12 <- #158 -s "$I:v
DO ,1 SUB #13 <- #52 fOervo
PLEASE READ OUT ,1 K8c#/o
PLEASE GIVE UP Sylsp%A
6+#cyKj
B;_3IHMO
Java $zi\ /Yw
public class Hello kovzB]
{ 74Wg@!P
public static void main(String[] args) Wy )g449
{ ?M(Wx
System.out.println("Hello, world!"); E1g$WhXIS
} 1\{F.v
} X0TGJ,yW(
Rx-i.Et Z
zD-8#H35X"
JSP +N_%|!F-c
<% 'A2"&6m)28
out.print("Hello, world!"); cLP@0`^H
%> %n,bPa>T
1R9/AP
+[`%b3N k
MIXAL 5~0;R`D
TERM EQU 19 the MIX console device number LdUpVO8)l
ORIG 1000 start address 1zW6Pb
START OUT MSG(TERM) output data at address MSG ]~ UkD*Ct
HLT halt execution _S1uJ~j;E
MSG ALF "MIXAL" RVx<2,['
ALF " HELL" qNL~m'
ALF "O WOR" pjM|}i<'Q
ALF "LD " 5C?1`-&65V
END START end of the program :h~!#;w_
*^_!W'T{j
\M@8# k|
Nuva Ka{Zoi]
<..直接输出..> 5Oq ;V:7
Hello, world! J< M;vB)
tn1aH
+
<..或者..> WQL`;uIX
$g;xw?~#
<. "FS.&&1(
// 不带换行 L9)&9
/f
? "Hello, world!" itvdzPO
a| cD{d
// 或者 >YhqL62!a
.#|pje^
// 带换行 i[#Tn52D
?? 'Hello, world!' V|7CYkB8
.> `_)dEu
t57b)5{FM
+Z*%,m=N(
OCaml rOT8!"
let main () = %}:J
9vra
print_endline "Hello world!";; hNy S
?2;G_P+
)I4t l/
Pascal $n"Llw&)
program Hello; bHnQLJ
begin 1 Y&d%AA
writeln('Hello, world!'); R&0l4g-4>
end. vxx3^;4p
C-Z,L#
6 -}gqkR
Perl *93 N0m4Rl
#!/usr/local/bin/perl r~!lD9R~
print "Hello, world!\n"; p2K9R4
3>6o=7/PU
'CX
KphlWs
PHP b.;W|$ .
<?php V^i3:'
print("Hello, world!"); #v-!GK_<
?> ./'n2$^3
.bGeZwvf:G
(Q+3aEUE
Pike <9~qAq7^
#!/usr/local/bin/pike b&1@rE-
int main() S)%x22sqf
{ D~:fn|/Brp
write("Hello, world!\n"); 8^lXM-G-
return 0; Xc^~|%+
} Eqc$*=
U<b!$"P9
8Yh2K}
PL/I
f/ZE_MN2
Test: procedure options(main); JSU\Hh!
declare My_String char(20) varying initialize('Hello, world!'); Y$^\D'.k
put skip list(My_String);
/rW{rf^
end Test; 9D,&)6
Up&q#vqIj
TfPx
Prolog y(k2p
goal O]>`B{
write("hello,world!"). C0RwW??t
(Wn'.|^%
=j0V/=
Python (EX
#!/usr/local/bin/python w3@te\
print "Hello, world!" L;"<8\vWB
jo^*R'}
i*<,@*
REXX $$@Tgkg?o
say "Hello, world!" ? &O$ayG77
|};~YMH
Tx5L
Ruby ect?9S[!y
#!/usr/bin/ruby HD ~9EK~
print "Hello, world!\n" pK4)>q
_OY ;SJ(
&BgaFx**
Scheme E !8y|_(j
(display "Hello, world!") Ogb_WO;)
(newline) 9O"?T7i"#
J{y@ O
C N"c
sed (需要至少一行输入) G\Me%{b#
sed -ne '1s/.*/Hello, world!/p' P(`IY+
JI&>w-~D
ezn>3?S
Smalltalk Fv9Z'#t
Transcript show: 'Hello, world!' }5k"aCno
9\8""-
[3.rG!Na
SNOBOL HIF]c
OUTPUT = "Hello, world!" fp7Qb $-A
END HZT;7<
ZZTV
>:
Lh}he:k+
SQL ew(6;}+^/
create table MESSAGE (TEXT char(15)); F!xK#~e
insert into MESSAGE (TEXT) values ('Hello, world!'); sR6(8
select TEXT from MESSAGE; 6]Jv3Re'(I
drop table MESSAGE; "#7i-?=
;Y"J j
Ol? 2Qy.2)
Tcl .#n?^73
#!/usr/local/bin/tcl &l Q j?]
puts "Hello, world!" L8W3Tpi&(
`G'V9Xs(
P}5aN_v\
TScript *%O1d.,
? "Hello, world!" _5zR!|\^
-K
jCPc
(/Ubw4unI
Turing g@QpqrT
put "Hello, world!" =8iM,Vl3
!rWib`%
6"DvdJ0MB
UNIX-style shell 0^m02\Li
程序中的/bin/sh可改为您使用的shell O!g>
f
:* 'i\
#!/bin/sh 3EyN"Lvp{o
echo 'Hello, world!' P
,i)A
h %nZKhm
!hq7R]TC+
GUI v zn/waw
J.-#:OZ
Delphi &0#qy9wx
program HelloWorld; pk/#+r;
uses )6(mf2&
Dialogs; ~ _raI7,
begin dw&Xg_$
ShowMessage('Hello, World!'); eN$~@'w
end. WFkXz*7B
Pwq}
;+
OD i)#
Nuva =3"Nn4Z
<.
pK3cg|}
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) DGU$3w
.> '~@WJKk
yqK82z5U*R
/'I/sWEV
Visual Basic <W?,n%
MsgBox "Hello, world!" ZGf=/Ra
a
'或者 Bq!P.%6p4
Print "Hello, world!" S2*:]pYf}
jk|0 <-3
4uz\Me(
Visual FoxPro {5to;\.
? "Hello, world!" -B_dE-l,
4 QDW}5xB
f5G17: Q
X11 qb! vI3
用一个程序 3oSQe"
?LZ)r^ger
xmessage 'Hello, world!' &v:iC
u^|
UpgOU.
用C++和gtkmm 2 nyIb8=f
n\ IVpgP
#include <iostream> =v_ju;C=
#include <gtkmm/main.h> T1x$v,)8x
#include <gtkmm/button.h> F;zmq%rK
#include <gtkmm/window.h> tHGK<rb
using namespace std; 7.5G4
C}!$'C|
class HelloWorld : public Gtk::Window ZK13[_@9
{ Z?GC+hG`
public: aqMZ%~7
HelloWorld(); {ng
virtual ~HelloWorld(); Jjy}m0)#W_
protected: 9u:MF0:W
Gtk::Button m_button; z` sH
virtual void on_button_clicked(); l/TH"z(
}; )X@(>b{
wHAh6lm
HelloWorld::HelloWorld() : m_button("Hello, world!") 'n=FBu^
{ bDr'W
set_border_width(10); `xtN+y F
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); rz3&khi
add(m_button); A1:Fe9q
m_button.show(); p0@iGyd
} rf9RG!
i P/I% D
HelloWorld::~HelloWorld() {} *kDXx&7B$
uZqo"
void HelloWorld::on_button_clicked() v.\&gn