“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。 Rqt[D @;m
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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》。 u_hE7#i
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以下是用不同语言写成的Hello World程序的几个例子: =ulr_i%Xs
Ada / N*HE
with Ada.Text_Io; use Ada.Text_Io; U=_~{[/
procedure Hello is =t~+63)
begin O>kXysM v>
Put_Line ("Hello, world!"); :tg@HyY)
end Hello; Cw@k.{*7,
P<TpG0~(
KLj 4LOs
汇编语言 8-W"4)@b
Uv#>d}P
x86 CPU,DOS,TASM B=r]_&u-u
MODEL SMALL 3m?@7 F
IDEAL ID_|H?.
STACK 100H &T5fH!?4
v[p/c.p?i
DATASEG {IF}d*:
HW DB 'Hello, world!$' {yul.m
:9v*,*@x
CODESEG )ylv(qgV
MOV AX, @data r|u6O F>
MOV DS, AX A}
x_zt
MOV DX, OFFSET HW |8&\N
MOV AH, 09H >F_qa=t%[
INT 21H )F=JkG
MOV AX, 4C00H 1 P(&GYc
INT 21H Ew)n~!s
END &/z+A{Hi
Z{8exym
HMl!?%%
x86 CPU,GNU/Linux,NASM nph7&[xQI
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). EIy]qAE:f
;Enter this into "hello.asm" then type: z_)OWWdN
;"nasm -f elf hello.asm" >e5q2U
;"ld hello.o -o hello" ^!-E`<jW8
;"./hello" tU-#pB>H
%N?W]vbra
section .data ;data section declaration 'b?#4rq}
msg db 'Hello World!',0AH %Q>~7P
len equ $-msg ;string length Q6e'0EIKC
/\oyPD`((
section .text ;code section declaration ,E
n(gm
global _start ;entry point (start of execution) ZQgxrZx3
_start: mov edx,len ;string length ]x5(bnWx
mov ecx,msg ;string start GgZEg
?@
mov ebx,1 ;file handle: stdout >b/k|?xP
mov eax,4 ;sys_write `2Z4#$.
int 80h ;kernel system call UpE1PLZlB
u(TgWp5WF
mov ebx,0 ;return value 0%q{UW2
mov eax,1 ;sys_exit ^=heen<S%
int 80h ;kernel system call {d*qlztO
~(*co[_
Lv`8jSt\
x86 CPU,Windows,MASM32 71}L#nQ
.386 F|h,a;2
.model flat,stdcall TYmUPS$
option casemap:none 3thG*^C5
;Include 文件定义 Q
KDb
include windows.inc c)n0D=
include user32.inc 6@,'m
includelib user32.lib Q
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include kernel32.inc 6cgpg+-a
includelib kernel32.lib `gBXeG2fn
;数据段 a3(7{,Ew
.data "`V"2zZlj
szCaption db 'A MessageBox!',0 ^bY^x+d
szText db 'Hello,world!',0 K"t:B
;代码段 eKU@>5
.code v3VLvh2)n
start: \M3NasZ
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK b>>=d)R
invoke ExitProcess,NULL A{u\8-u
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ?*MV
^IY
end start C4X{Ps\
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C7c|\ T
AWK oto
wvm
BEGIN { print "Hello, world!" } zwniS6R1
k8t Na@H
0W<nE[U
BASIC hD9'`SQ
传统版BASIC(例如GWBASIC): X&;]
$
uIwRG
<
10 PRINT "Hello, world!" pyb}ha
20 END I,`D&
h9)]N&07b
或在提示符输入: 2Xq!'NrS
x:&L?eOT
?"Hello, world!":END ,~=z_G`R
9<0$mE^:
现代版BASIC(例如Quick BASIC): l#5k8+s
\I o?ul}za
Print "Hello, world!" Sv^'CpQ
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以下的语句在Quick BASIC中同样有效: bCac.x#jo
vY+_tpuEH
? "Hello,world!" QVZ6;/
[(.T%kJ
xhVq
BCPL JQvQm|\nc
GET "LIBHDR" NXG}0`QVT
{bq-: CZe
LET START () BE g`f6gxc
$( /w0v5X7
WRITES ("Hello, world!*N") xZ{|D
$) {0Ol/N;|D
~%!U,)-
kAe-d
Befunge #I{Yf(2Z
"!dlrow olleH">v %>*0.)wG
, :QhEu%e
^_@ 0g*r!aa
;?L[]Ezzt
dxhjPS~^Q
Brainfuck 1wNY}3
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< pl^"1Z=*
+++++++++++++++.>.+++.------.--------.>+.>. uD*s^
rsIPI69qJ.
d_?Zr`:
C }rAN2D]"}
#include <stdio.h> ,+5VeRyrV
Z?j='/u>@
int main(void) R.WsC bU
{ FOnA;5Aa
printf("Hello, world!\n"); 2
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return 0; HZQ3Ht 3Vh
} @ 6V H%
}SvWC8
OTjryJ^
C++ :\=
NH0M
#include <iostream> QIz N#;g
g(}8n bTA
int main() ~[/c'3+4qn
{ =K<I)2
std::cout << "Hello, world!" << std::endl; W/F4wEODY
return 0; +Gwe%p Q
} uJ5%JB("E
2BU)qv-
Appz1q
C++/CLI Dqcu$V]
int main() e.Q K%
{
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System::Console::WriteLine("Hello, world!"); a>jI_)L
} Ch&]<#E>`
XTXo xZ#w
iI Nu`>I
C# (C Sharp) `h{mj|~
class HelloWorldApp bqwW9D(
{ Mh/>qyS*2
public static void Main() W%<]_u[-}
{ 0-; P&m!!
System.Console.WriteLine("Hello, world!"); ~ z&A
} E#F9<=mA)
} H5MAN,`
58ZiCvqv
i}{Q\#=#
COBOL -3%)nV
IDENTIFICATION DIVISION. AT'$VCYC(
PROGRAM-ID. HELLO-WORLD. +jZg%$Q!#
N#!1@!2BN
ENVIRONMENT DIVISION. 9^*YYK}%
KGLhl;a
DATA DIVISION. GyM%vGl
3
v.&*z48
PROCEDURE DIVISION. NHVx!Kc
DISPLAY "Hello, world!". *RE-K36m|u
STOP RUN. |[7$) $
F?AfB[PM
l7y`$8Co
Common Lisp )0V]G{QN
(format t "Hello world!~%") 3S|;yOl#X
Dj&bHC5%
?-& D'
DOS批处理 \#c+vfq
@echo off r!gCh`PiK
echo "Hello, world!" <>/MKMq!
^* v{t?u
"X}F%:HL
Eiffel mSw?iL
class HELLO_WORLD 9nAK6$/
QN8Hz/}\
creation HD^~4\%
make ={vtfgxl
feature &UH z
make is s31_3?Vdf,
local 4zDAfi#0
io:BASIC_IO ;m:GUp^[
do 8VGXw;(Y,d
!!io (mr`?LI}
io.put_string("%N Hello, world!") @[Qg}'i
end -- make {+mkXp])R
end -- class HELLO_WORLD s-S"\zX\D
M\4;d #
BQ)43Rr>
Erlang [ +@<T)
-module(hello). Lk+1r8
-export([hello_world/0]). Jm,X~Si
aT1W]i
hello_world() -> io:fwrite("Hello, World!\n"). BFu9KS+@)
a8P6-)W
CP#MNNvgrw
Forth g' U^fN
." Hello, world!" CR T>o# *{qn
W/X;|m`
U>jk`?zW
Fortran 3;gtuqwD$
WRITE(*,10) [zd-=.:+M[
10 FORMAT('Hello, World!') /s_$CSiB
STOP Ybg`Z
END =+\oL!^
KTJ$#1q
Q*{
2
HTML V]cY+4Y
<HTML> 1OeDWEcB
<HEAD> )O(Gw-jWE
<TITLE> Hello World! </TITLE> 3<E$m*
</HEAD> .]l2)OlLQ
<BODY> 7B :aJfxM
<p>Hello World!</p> L%Hm#eFx
</BODY> <xNM@!'\h
</HTML> Ot<!Y M
LA0x6E+I
@= 9y5r
HQ9+ f#MN-1[67
H EmoU7iy
Qt39H@c|z~
SkUP9
INTERCAL +38P$Koz{r
PLEASE DO ,1 <- #13 `Pbn
DO ,1 SUB #1 <- #238 "7/YhLq7
DO ,1 SUB #2 <- #112 U2u>A
r
DO ,1 SUB #3 <- #112 oABPGyv
DO ,1 SUB #4 <- #0 o`Brr:
DO ,1 SUB #5 <- #64 #=3]bg
DO ,1 SUB #6 <- #238 7[ji,.7
DO ,1 SUB #7 <- #26 C(+BrIS*
DO ,1 SUB #8 <- #248 WR1,J0UU6
DO ,1 SUB #9 <- #168 QX|K(`of
DO ,1 SUB #10 <- #24 }'-
)
DO ,1 SUB #11 <- #16 OaWq8MIZ-
DO ,1 SUB #12 <- #158 KrzM]x
DO ,1 SUB #13 <- #52 ( mMz]b5
PLEASE READ OUT ,1 |g+5rVbd
PLEASE GIVE UP EHjhez
ri`|qy6! |
[AwE
Java !d_A? q'hN
public class Hello PdnK@a
{ !IU*Ayg
public static void main(String[] args) DR=1';63
{ @ U|u _S@
System.out.println("Hello, world!"); PS1~6f"D
} Yw
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} $sJfxh
r
z<*]h^!3
xn[di-LF
JSP s:H1v&t,<
<% &[pwLYf7
out.print("Hello, world!"); \)WjkhG<w#
%> 0<k!F3=
X9wi:
C3gz)!3
MIXAL H_]kR&F8
TERM EQU 19 the MIX console device number | w -W=v
ORIG 1000 start address 5Bk
START OUT MSG(TERM) output data at address MSG (%, '
HLT halt execution @su,w,xLS
MSG ALF "MIXAL" v2R:=d
')>
ALF " HELL" 6 [E"
ALF "O WOR" .}s a2-
ALF "LD " IuD<lMeJJ
END START end of the program 3.Kdz}
Z0KA4O$eL
k9]n/
Nuva !}?]&[N=
<..直接输出..> L4%LE/t|e
Hello, world! jRc#>;dN
Yw0@O1Cel
<..或者..> Gx($q;8
O*7
pg
<. f0+
// 不带换行 DK;-2K
? "Hello, world!" g=8e.Y*Fr
?Fu.,srt
// 或者 3E-&8x7uYR
KW\`&ki
// 带换行 Jjv&@a}
?? 'Hello, world!' 8wOPpdc
.> wC~Uy%
Sb.;$Be5g
VXp
X#O
OCaml Vv]mME@
let main () = wW~2]*n
print_endline "Hello world!";; PoZBiw@
fmh]Y/UC
`'`XB0vb
Pascal \&fK 8H1
program Hello; zF7T5Ge
begin G].Z| Z9
writeln('Hello, world!'); 1|--Xnv
end. sKtH4d5)
>b0}X)Z+U
RWYA`
Perl ="4 )!
#!/usr/local/bin/perl KMa?2cJH#
print "Hello, world!\n"; va\cE*,@ns
PQ" Dl=,
fy5)Tih%.*
PHP fqxMTTg@
<?php zQ~nS
print("Hello, world!"); TQE_zOa:
?> S3w? X
lUmaNZ
%?ad.F+7
Pike GmFNL/x8-v
#!/usr/local/bin/pike h1$,
int main() pB`<4+"9
{ o'G")o
write("Hello, world!\n"); <pCZ+Yv E"
return 0; 3f0RMk$pH
} ~9=g" v
V.qB3V$
%y'#@%kO:S
PL/I WD<M
U ]
Test: procedure options(main); ET4YoH>
declare My_String char(20) varying initialize('Hello, world!'); 3~ylBJJ
put skip list(My_String); occ}|u
end Test; 6Y=)12T
i{.!1i:
[||$1u\%
Prolog raCxHY
goal B^Vb=* QRo
write("hello,world!"). y7JJ[:~~
SyI#Q[f'_
\O56!,k
Python e([}dz
#!/usr/local/bin/python Ad[-YT
print "Hello, world!" xpae0vw
[1Rs~T"
]*).3<Lw
REXX #H|]F86 (
say "Hello, world!" o&zeOJW
#~"jo[
iVE+c"c!2&
Ruby kAMt8
#!/usr/bin/ruby czafBO6
print "Hello, world!\n" EG,RlmcPp
z[th@!3
B|tP3<
Scheme cOcm9m#
(display "Hello, world!") 5=eGiF;0\
(newline) P69S[aqW
7+fFKZFKF
i9Qx{f88
sed (需要至少一行输入) W1 E((2
sed -ne '1s/.*/Hello, world!/p' AyddkjX
,Ao8QN
E8/P D
Smalltalk 7C=t19&R'
Transcript show: 'Hello, world!' (sY?"(~j?T
&@yW<<
g94NU
X
SNOBOL Y`%:hvy~
OUTPUT = "Hello, world!" L49`=p<
END JVRK\A|R
I%|W
O*x
RX'(
l
SQL HA| YLj?|g
create table MESSAGE (TEXT char(15)); y 2bZo'Z
insert into MESSAGE (TEXT) values ('Hello, world!'); YDP<
select TEXT from MESSAGE; D+tn<\LF
drop table MESSAGE; 6:Ra3!V"v
2|+**BxHD
e(cctC|l
Tcl n(&6E3ZcI
#!/usr/local/bin/tcl ;sDFTKf
puts "Hello, world!" Pl
U!-7
{A{=RPL
:*1bhk8~
TScript 94Z~]C
? "Hello, world!" m8.sHw
bEbnZ<kz*
m3 ,i{
Turing YoJN.],gf
put "Hello, world!" OPar"z^EV
qm2
dF"Sz4DY#
UNIX-style shell 5TqX;=B
程序中的/bin/sh可改为您使用的shell ~nw]q<7r
/_v@YB!0
#!/bin/sh D3$}S{Yw1
echo 'Hello, world!' ygh*oVHO
SBs_rhe
;a2TONW
GUI 42mdak}\
C*=#=.~~{
Delphi p "u5wJ_
program HelloWorld; Ji gc@@B.
uses .M!HVq47m
Dialogs; d
n3sh<
begin R["_Mff
ShowMessage('Hello, World!'); ^8-CUH\
end. s-[ _%
xDm^f^}>
=JY9K0S~
Nuva wj/OYnMw
<. }sZme3*J[
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) y]yp8Bs+
.> s+l)Q
#)z_TM07P
m
z) O
Visual Basic D3N\$ D
MsgBox "Hello, world!" 6Dwj^e0
'或者 _Uc le
Print "Hello, world!" Srg`Tt]
v[\'
M
wS9EC}s:Q
Visual FoxPro b$[O^p9x
? "Hello, world!" BNL Q]
{fmSmD
q,A; d^g
X11 blEs!/A`
用一个程序 {dTtYL$'"
@|sDb?J
xmessage 'Hello, world!' k%Jv%m}aB
Mt"j< ]EW
用C++和gtkmm 2 C;QIp6"1
0x*L"HD
#include <iostream> _gxI=EYi
#include <gtkmm/main.h> _Gvn1"l
#include <gtkmm/button.h> |5^tp
#include <gtkmm/window.h> e4ym6q<6!
using namespace std; g)nsP
FMhSHa/B
class HelloWorld : public Gtk::Window RX3P%xZ
{ :A9G>qg
public: gP:mZ7
HelloWorld(); ~RgO9p(dY
virtual ~HelloWorld(); Us P1bh4
protected: E|P
Gtk::Button m_button; !lpKZG
virtual void on_button_clicked(); !36jtKdM
}; 4Hc+F(
q$7SJ.pF
HelloWorld::HelloWorld() : m_button("Hello, world!") R9%Um6
{ (pJ-_w'G
set_border_width(10); )%FRBO]
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); C7:;<<"P
add(m_button); ?VaWOwWI
m_button.show(); lky{<jZ%
} K=nW|^
mWN9/+!
HelloWorld::~HelloWorld() {} 4EQ-48h17
.s Ci9d
WR
void HelloWorld::on_button_clicked() '[V}]Z>-
{ X]
cI ?
cout << "Hello, world!" << endl; I@ "%iYL
} ~?`V$G=?,
qD0sD2 x
int main (int argc, char *argv[]) HE6kt6
{ f}qR'ognUu
Gtk::Main kit(argc, argv); Gpv9~&