“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。 s/+@o:
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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》。 X4LU/f<f
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以下是用不同语言写成的Hello World程序的几个例子: VdpwZ
Ada M<oIo036
with Ada.Text_Io; use Ada.Text_Io; ~G.'pyW
procedure Hello is ohqi4Y!j/~
begin m.ev~Vv~
Put_Line ("Hello, world!"); a#t:+iw
end Hello; ].=&^0cg
s86Ij>VLf
&U%AVD[
汇编语言 ?s[ kUv+=
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x86 CPU,DOS,TASM Vo^
i7
MODEL SMALL Pu dIb|V2
IDEAL /?<o?IR~6
STACK 100H H'E(gc)>)
$s-/![
6
DATASEG Coz\fL
HW DB 'Hello, world!$' )
-x0xY
b6sj/V8
CODESEG 7M*&^P\}es
MOV AX, @data K[JbQ30
MOV DS, AX 5s3!{zT{
MOV DX, OFFSET HW 5[3vup?
MOV AH, 09H a"gZw9m@
INT 21H R&Y+x;({
MOV AX, 4C00H ._j9^Ll
INT 21H Os--@5e
END %fB]N
^$-ID6
Vx$ ?)&
x86 CPU,GNU/Linux,NASM *#p}>\Y{
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). T.\=R
;Enter this into "hello.asm" then type: ;oW#>!HrY
;"nasm -f elf hello.asm" EaaLN<i@0
;"ld hello.o -o hello" : p# 5nYi
;"./hello" ' jAX&7G`
P%w)*);
section .data ;data section declaration J{fTx@?(
msg db 'Hello World!',0AH 7.Df2_)
len equ $-msg ;string length G^E"#F
Kx,#Wg{H
section .text ;code section declaration !Au'WJfE
global _start ;entry point (start of execution) w1tWyKq
_start: mov edx,len ;string length 6U|An*
mov ecx,msg ;string start T%|{Qo<j
mov ebx,1 ;file handle: stdout .!|\Y!]^r
mov eax,4 ;sys_write XS+2OutVo
int 80h ;kernel system call E Dh$UB)
vz'/]E
mov ebx,0 ;return value XFJGL!wWm[
mov eax,1 ;sys_exit SB"Uu2)wZ
int 80h ;kernel system call @@->A9'L
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]\DZW4?'
x86 CPU,Windows,MASM32 4mYJ i#e6x
.386 9 Z,K
.model flat,stdcall !R@v\Eu
option casemap:none (55k70>i3
;Include 文件定义 WbF[4x
include windows.inc 6! `^}4
include user32.inc *K}h
>b 1
includelib user32.lib Egy#_ RT{
include kernel32.inc .d
mUh-
includelib kernel32.lib )b AO A
;数据段 xZbiEDU
.data m5i?<Ko@
szCaption db 'A MessageBox!',0 YU>NGC]}d
szText db 'Hello,world!',0 KV&4Ep#
;代码段 7dxTyn=
.code PydU.,^7
start: D@.+B`bA
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK ;W"=s79
invoke ExitProcess,NULL z)AZ:^!O
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LC8&},iu
end start \N3A2L)l
\PU7,*2
E~]37!,\\9
AWK k5M3g*
BEGIN { print "Hello, world!" } ,%Go.3i[
_=Y?' gHH
mf4C68DI@u
BASIC H5MO3DJ
传统版BASIC(例如GWBASIC): 2iX57-6Ub
6l Suzu
10 PRINT "Hello, world!" EhWYFQ
20 END pAdx 6
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或在提示符输入: Tj(DdR#w
4$W}6v
?"Hello, world!":END (AIgW
c+a" sx\
现代版BASIC(例如Quick BASIC): yyZs[5Q
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Print "Hello, world!" RX])#=Cs
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以下的语句在Quick BASIC中同样有效: #!yW)RG
;q5.\m:
? "Hello,world!" pDYcsC{p
rf\/Y"D
I
\Luw*:
BCPL d@b" ~r}
GET "LIBHDR" CpGy'Ia
k[ZkVwx
LET START () BE hiT&QJB` _
$( 4CH/~b1(
WRITES ("Hello, world!*N") .:wo
ARW!
$) W)~}o<a)[
@1c[<3xJT
m7$t$/g
Befunge Gf<f#.5y
,
"!dlrow olleH">v eVRPjVzQ'Q
, 9_Ws8nE
^_@ ov$S
wk9qyv<
z79c30y]"
Brainfuck ?GT,Y5
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<<
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+++++++++++++++.>.+++.------.--------.>+.>. bI?uV;m>
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jA'7@/F/
C Od]B;&F
#include <stdio.h> +"?O2PX
:P/0 "
int main(void) UD0#Tpd7
{ Oaj$Z-
f
printf("Hello, world!\n"); ^l8&y;-T
return 0; dTTC6?yPXf
} ]tsp}M@
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C++ 1}/37\
#include <iostream> nBg
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nhImO@Q:
int main() LW#$%}
{ A7enC,Ey
std::cout << "Hello, world!" << std::endl; ^| r6>b
return 0; _C4N6YdU
} |!6<L_31%
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QLLMSa+! \
C++/CLI P9f,zM-
int main() -qs
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{ ]_js-+w6
System::Console::WriteLine("Hello, world!"); >HRL@~~Z
} 0
zn }l6OS
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h8
!(WO!
C# (C Sharp) ^3O`8o
class HelloWorldApp i5 ;_
{ $ISx0l~
public static void Main() _t-e.2a
v
{ N2.(0 G
System.Console.WriteLine("Hello, world!"); spG3"Eodi
} MZWicfUy
} c`s ]ciC
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'z$!9ufY,
COBOL N_o|2
IDENTIFICATION DIVISION. N / Fa^[
PROGRAM-ID. HELLO-WORLD. cMZ-
aS/ MlMf
ENVIRONMENT DIVISION. 8S#TOeQ
S%IhpTSe6
DATA DIVISION. VlFhfOR6t
3R?6{.
PROCEDURE DIVISION. ;y]BXW&l&
DISPLAY "Hello, world!". =2OLyZDI
STOP RUN. )u>/:
Lg2z `uv
$*qQ/hi
Common Lisp <!a%GI
(format t "Hello world!~%") _%@ri]u{ov
|y DaFv
EHH+)mlo
DOS批处理 #v\o@ArX
@echo off V]W-**j<
echo "Hello, world!" l|L
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VpyqVbx1
EXizRL-9o
Eiffel uGY(`
class HELLO_WORLD *T-v^ndJh
f5P@PG]{
creation 9iM[3uyO
make jpt-5@5O
feature u!TMt8+c
make is P*g:rg
local lnWscb3t
io:BASIC_IO =y]FcxF
do !f01.Tq8
!!io +z O.|`+
io.put_string("%N Hello, world!") |wkUnn4UB8
end -- make \xjI=P'-25
end -- class HELLO_WORLD _r?.%]\.
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/ TAza9a
Erlang Rc#c^F<
-module(hello). ?X nKKw\
-export([hello_world/0]). UI_u:a9Q/
`2a7y]?
hello_world() -> io:fwrite("Hello, World!\n"). f"aqg/l
Jl@YBzDfF
8fC5O
Forth D[Kq`
." Hello, world!" CR 0}wmBSl
+?ilTU
qK,PuD7i"
Fortran !CUX13/0
WRITE(*,10) l5<&pb#b
10 FORMAT('Hello, World!') gT#hF]c:
STOP _Eus7
END .*{0[
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|*JMCI@Mz
HTML UO}Yr8Z;
<HTML> @%
.;}tC
<HEAD> yv2wQ_({
<TITLE> Hello World! </TITLE> ;hCUy=m.
</HEAD> !Nx'4N`&l
<BODY> I`S?2i2H
<p>Hello World!</p> Ybp';8V
</BODY> pe>[Ts`2F
</HTML> &b=OT%D~FU
NflRNu:-
gn6 @x
HQ9+ C
o,"
H >{.|Ng4K
mu@IcIb>
AR6hfdDDT
INTERCAL JqP~2,T
PLEASE DO ,1 <- #13 2<TpNGXM_
DO ,1 SUB #1 <- #238 gi
JjE
DO ,1 SUB #2 <- #112 j7
\y1$w
DO ,1 SUB #3 <- #112 f!13Ob<8r
DO ,1 SUB #4 <- #0 P*3PDa@
DO ,1 SUB #5 <- #64 I0v4TjHH
DO ,1 SUB #6 <- #238 VPUm4%?p$
DO ,1 SUB #7 <- #26 FV5~sy
DO ,1 SUB #8 <- #248
RFT`r
DO ,1 SUB #9 <- #168 N&]_U%#Q
DO ,1 SUB #10 <- #24 ]Nb~-)t%B
DO ,1 SUB #11 <- #16 6a4-VX5
DO ,1 SUB #12 <- #158 @0fiui_
DO ,1 SUB #13 <- #52 uTRFeO>
PLEASE READ OUT ,1 gF~#M1!!
PLEASE GIVE UP vhL/L?NB$
L
/V;;
xAu&O\V
Java a4x(lx&
public class Hello MBO>.M$B
{ u$nYddak
public static void main(String[] args) b&I{?'"% 8
{ mM\jU5P:^
System.out.println("Hello, world!"); YTV|]xpR
} %d2\4{{S
} 3$h yV{
e)2w&2i`(F
YV)h"u+@0
JSP
(i>bGmiN
<% 3AcCa>
out.print("Hello, world!"); 6+W`:0je
%> c|(&6(r
{7d\du&G
CNrK]+>
MIXAL C#:L.qK
TERM EQU 19 the MIX console device number 5v5K}hx
ORIG 1000 start address 'FwNQz zt
START OUT MSG(TERM) output data at address MSG uM@ve(8\
HLT halt execution CkEbSa<)hK
MSG ALF "MIXAL" r"=6s/q7
ALF " HELL" lvk
r2Meu<
ALF "O WOR" fe+2U|y
ALF "LD " e3}o3c_
END START end of the program D0
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2F|06E'
}D*5PV%d
Nuva ,xuA%CF-S
<..直接输出..> %-#rzeaW
Hello, world! gYW
q*d@5
<..或者..> OuwEO
$-"V
2
<. 'h{| ]
// 不带换行 :{M1]0NH
? "Hello, world!" ,]Q
i/m
2PG= T/
// 或者 Z=[?Tf
!R3ZyZcX
// 带换行 Y!fgc<]'&
?? 'Hello, world!' .;jp2^
.> OuV
f<@a
5<mGG;F
Q}kXxud
OCaml ;*q
let main () = O`D,> =[
print_endline "Hello world!";; Uq:CM6q\
b";D*\=x
SZL('x,"^
Pascal mFW/xZwR,5
program Hello; ?b3({P
begin }TsND6Ws3
writeln('Hello, world!'); Is#w=s}2
end. z P=3B%$
zjUT:#(k
2t1u{
Perl UwVc!Lys
#!/usr/local/bin/perl _l$X![@6=
print "Hello, world!\n"; 48"=,IrM
{B)-+0 6
;/)u/[KAv
PHP
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<?php y)0wM~E;2
print("Hello, world!"); MfK}DEJK,
?> 'D17]Lp~.
UY`U[#
H3Sfz'
Pike }4wIfI83K,
#!/usr/local/bin/pike :Mzkm^7B
int main() LL7un_EC
{ -:!FQ'/7E
write("Hello, world!\n"); Xi"<'E3_
return 0; #xe-Yw1!
} HG:9yP<,o
@&}~r
{+^qm8n
PL/I Fa^I 1fk
Test: procedure options(main); O YayTKxN
declare My_String char(20) varying initialize('Hello, world!'); iK=SK3)vR
put skip list(My_String); ;vLg4k
end Test; 4j VFzO%.
X2S:"0?7
bbAJ5EqL
Prolog j
hr pS
goal 0="U'|J_
write("hello,world!"). y)#=8oci
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k(%h{0'
Python w;8VD`>[|
#!/usr/local/bin/python E;)7#3gY1
print "Hello, world!" wh)Ujgd
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9w08)2$Na
REXX 2:tO "
say "Hello, world!" 8V(-S,
$<v{$UOh
$5S/~8g(
Ruby 8*m=U@5]
#!/usr/bin/ruby x9B5@2J1
print "Hello, world!\n" J4>k9~q
]] Jg%}o
_{ f7e^;
Scheme )9?
^;HS
(display "Hello, world!") C
Ch38qBp
(newline) 8zWKKcf7t
^7$V>|
sH`(y)`_
sed (需要至少一行输入) jI~GRk
sed -ne '1s/.*/Hello, world!/p' Sz3Tp5b
EL+P,q/b
#5/.n.X"
Smalltalk ac< hz0
Transcript show: 'Hello, world!' fqQ(EVpQ
&<\i37y
V1!;Hvm]+
SNOBOL c</u]TD
OUTPUT = "Hello, world!" (J,^)!g7
END t)h{ w"v
:rhh=nHgn
g_2EH
SQL H<wrusRg
create table MESSAGE (TEXT char(15)); %.`<ud
insert into MESSAGE (TEXT) values ('Hello, world!'); sUTh}.[5
select TEXT from MESSAGE; |T;NoWO+
drop table MESSAGE; fjwUh>[ }
h:l4:{A64
TOvpv@?-
Tcl 3,4m|Z2)
#!/usr/local/bin/tcl fx`oe
puts "Hello, world!" +Oa+G.;)o4
}!n90
9L
/\C5`>x
TScript ?> 7SZiC`
? "Hello, world!" R<AT}!mkR
6i.!C5YX]
Y[WL}:"93
Turing UYW{AG2C
put "Hello, world!" n\G88)Dv`V
|uRZT3bGyj
u{dI[?@
UNIX-style shell 3El5g0'G
程序中的/bin/sh可改为您使用的shell B9(e"cMm
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#!/bin/sh 6Lhfb\2?
echo 'Hello, world!' cc_v 4d{x
gHe%N?'
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GUI E,g5[s@
r"aJ&~8::W
Delphi Z?_t3
program HelloWorld; Lkl+f~m
uses #k*P/I~
Dialogs; xY,W[?3CY
begin x;L.j7lzA;
ShowMessage('Hello, World!'); R;2q=%
end. @+ee0
CLT
NiPa-yRh
oGa8#>
Nuva w +~,Mv \
<. L4?)N&V
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) A(dWAe,
.> >L {s[pLJ
_}RzJKl@
=i:6&Y~VGq
Visual Basic J0Ik@
MsgBox "Hello, world!" tP;^;nw
'或者 UI}df<Ge
Print "Hello, world!" ~|t7
^N`bA8
ZlxJY%oeu
Visual FoxPro JZM:R
? "Hello, world!" 3duWk sERC
Z+ ?V10$
cm!|A)~
X11 <!qv$3/7
用一个程序 d|?'yX
kICZc{} `
xmessage 'Hello, world!' u{S J#3C5
!W3bHy:C"
用C++和gtkmm 2 @cz\'v6E
map#4\
#include <iostream> ck"lX[d1
#include <gtkmm/main.h> WUnmUW[/
#include <gtkmm/button.h> f#3U,n8:
#include <gtkmm/window.h> aHzS>
using namespace std; R]y[n;aGC
; M%n=+[O
class HelloWorld : public Gtk::Window tF@hH}{;
{ 6x$1En
public: Z F&aV?
HelloWorld(); a&*fk ?o
virtual ~HelloWorld(); gPrIu+|F
protected: f3u^:6U~
Gtk::Button m_button; M*x1{g C/
virtual void on_button_clicked(); Ous_269cM
}; UNB'Xjp}@
A,4|UA?-
HelloWorld::HelloWorld() : m_button("Hello, world!") {vL4:K
{ Ka$YKY,
set_border_width(10); [EX@I
=?
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); /v^1/i
add(m_button); Aa#WhF
m_button.show(); ;Fi(zl
} ^Cm9[1p
2kS]:4)T
HelloWorld::~HelloWorld() {} ARt+"[.*p
OB{d^e}
void HelloWorld::on_button_clicked() j(*ZPo>oD
{ Gj%cU@2
cout << "Hello, world!" << endl; 2V*<HlqOif
} RIDzNdM>U
}h PFd
int main (int argc, char *argv[]) <E`Ygac
{ ,( ?q
Gtk::Main kit(argc, argv); I2R"
Y<
HelloWorld helloworld; L-}6}5[
Gtk::Main::run(helloworld); x\r[Zp|
} TrBBV]4
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Java bQ3EBJT{P
import java.awt.*; b?~%u+'3
import java.awt.event.*; O
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bZB7t`C5
public class HelloFrame extends Frame !&k}YF
{ 9O.okU
HelloFrame(String title) XYM 5'
{ {M.OOEcIp
super(title); 0L5n<<