“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。 7f\/cS^
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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》。 '=1@,Skj-
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以下是用不同语言写成的Hello World程序的几个例子: 4ad-'
Ada 4$Ud4<
with Ada.Text_Io; use Ada.Text_Io; #waK^B)<a
procedure Hello is -MuKeCgi
begin nAk;a|Q
Put_Line ("Hello, world!"); .(X!*J]G
end Hello; WS2@;
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t[%ELHV
9B2`FJ
汇编语言 {IT;g9x
r)Fd3)e
x86 CPU,DOS,TASM iuHs.k<z
MODEL SMALL laA3v3*
IDEAL YfJQ]tt1
STACK 100H 2/RW( U
i$dF0.}Q
DATASEG Jk,}3Cr/
HW DB 'Hello, world!$' Rkh
^|_<!
L]QBh\
CODESEG 0&2eiMKG?n
MOV AX, @data {z*`*
O@
MOV DS, AX -A)/CFIZ
MOV DX, OFFSET HW M =6
MOV AH, 09H Vo(V<2lw}
INT 21H &WHK|bl
MOV AX, 4C00H ge!Asm K
INT 21H B+2Jea,N
END Ufv0Xj
{14sI*b16
S<nbNSu6+
x86 CPU,GNU/Linux,NASM u\P)x~-TM
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). Qm2(Z8Gh
;Enter this into "hello.asm" then type: 'Z`fZ5q
;"nasm -f elf hello.asm" &T[BS;
;"ld hello.o -o hello" A^@,Ha
;"./hello" axLO: Q,
(5&l<u"K~
section .data ;data section declaration +8|r_z\A5a
msg db 'Hello World!',0AH :IX_}|
len equ $-msg ;string length Y"'k $jS-
nQM7@"R
section .text ;code section declaration }I
^e:,{
global _start ;entry point (start of execution) o!}/&
'(
_start: mov edx,len ;string length wm
s@1~I
mov ecx,msg ;string start w"?E=RS
mov ebx,1 ;file handle: stdout UCS`09KNJ
mov eax,4 ;sys_write P<s:dH"
int 80h ;kernel system call \'Ewn8Qv8
u}BN)%`B
mov ebx,0 ;return value 8!VFb+
mov eax,1 ;sys_exit C;.+ kE
int 80h ;kernel system call J&jig?t
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x86 CPU,Windows,MASM32 qD/FxR-!
.386 i"U<=~
.model flat,stdcall {GM8}M~D&
option casemap:none `8N],X
;Include 文件定义 FAP1Bm
include windows.inc G?QU|<mj<
include user32.inc z]F4Z'(e.
includelib user32.lib V0'_PR@;
include kernel32.inc NP5;&}uv*!
includelib kernel32.lib +)7Yqh#$
;数据段 {uuvgFC
.data y6!Zt}m
szCaption db 'A MessageBox!',0 d( +E0
szText db 'Hello,world!',0 m1(cN%DBd
;代码段 W_z?t;
.code ?{M!syD<
start: 2gb MUdpp
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK 6
w:@i_2^
invoke ExitProcess,NULL 4Iou|
H
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> yNu%D$6u7
end start :i_kA'dl&
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k1
AWK Mb0cdK?hA
BEGIN { print "Hello, world!" } 8{Id+Q>Vo,
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(" +/ :
BASIC 34P5[j!h
传统版BASIC(例如GWBASIC): l
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k(v8zDq*
10 PRINT "Hello, world!" 63?fn~0\
20 END Kzd`|+?'`M
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或在提示符输入: v|v^(P,o
,lly=OhKb
?"Hello, world!":END Ck0R%|
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现代版BASIC(例如Quick BASIC): ~CB6+t>
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Print "Hello, world!" Q`]El<$
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以下的语句在Quick BASIC中同样有效: B R-(@
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? "Hello,world!" hL,+wJ+A
sgn,]3AUq
<k^P>Irb3t
BCPL b:}`O!UBw
GET "LIBHDR" ReCmv/AE
LyB$~wZx~@
LET START () BE kxg]sr"
$( ZN2g(
WRITES ("Hello, world!*N") Aghcjy|j
$) qG/a5i
}Vpr7_
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Befunge \"qXlTQ1_9
"!dlrow olleH">v PomX@N}1
, +_?;%PKkuF
^_@ rSD!u0c[
b\%=mN
9Osjh G
Brainfuck $;_'5`xs
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 8Us5Oi
+++++++++++++++.>.+++.------.--------.>+.>. l|ZwZix
Jr18faEZw
7;C9V`
C ,sk;|OAI
#include <stdio.h> .BXZ\r`
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int main(void) 8 F'i5i
{ DFs
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printf("Hello, world!\n"); XQ<2(}]4
return 0; IC9:&C[
} JBa=R^k
f{lg{gA(
J?-"]s`J
C++ Um\Nd#=:
#include <iostream> !>/U6h,_
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int main() :>'^l?b'WX
{ K,' ]G&K
std::cout << "Hello, world!" << std::endl; TeQWrms
return 0; (@O F
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} 2"nd(+QH
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q:-8W[_
C++/CLI ReP7c3D>p
int main() '@HWp 8+
{ <!&nyuSz
System::Console::WriteLine("Hello, world!"); FgRlxz
} UioLu90
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ro6peUL*2`
C# (C Sharp) VbK| VON[
class HelloWorldApp gOO\` #
{ R3&W.?C
T
public static void Main() 6+FmYp
{ -sGfpLy<6
System.Console.WriteLine("Hello, world!"); (ui"vLk8PP
} bWwc2##7jo
} s9qr;}U.`
d/- f]
pF#nj`L
COBOL ,;H)CUe1"
IDENTIFICATION DIVISION. >! wX%QHH
PROGRAM-ID. HELLO-WORLD. UL(R/yc
s{KwO+ UW
ENVIRONMENT DIVISION. jRXByi=9
Fc7mAV=
DATA DIVISION. !u~( \Rb;
O|#^ &d
PROCEDURE DIVISION. UbJ_'>hK 6
DISPLAY "Hello, world!". *xM4nUu<~
STOP RUN. ,K6s'3O(LW
a*NcL(OC
&I:5<zK{
Common Lisp ;->(hFJt
(format t "Hello world!~%") 5)2lZ(5.A#
-2w\8]u
R.!'&<Svq
DOS批处理 >"{3lDyq-
@echo off 7$a,pNDw
echo "Hello, world!" I/<aY*R4
w8kp6_i'
uYhm
F p
Eiffel 6^s=25>p
class HELLO_WORLD vR3'B3y
{2}O\A
creation - ~T LI&[
make YbND2i
feature ga?.7F
make is C!]hu)E
local vp1IYW
io:BASIC_IO D?)91P/R
do T'
%TMA
!!io PP.QfY4
io.put_string("%N Hello, world!") 9sFZs]uM
end -- make MVs@~=
end -- class HELLO_WORLD H? Z5ex
cclx$)X1X
#pErGz'{
Erlang !<Ma9%uC{
-module(hello). Cz-eiPlq
-export([hello_world/0]). U
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*R m>bLI
hello_world() -> io:fwrite("Hello, World!\n"). Ya<S/9c
9i*t3W71]
S4aN7.'Q
Forth B<u6Z!Pp2
." Hello, world!" CR GF*8(2h2
/ Of*II&
/X~l%Xm
Fortran CH[U.LJQ-O
WRITE(*,10) U$&G_&*0a
10 FORMAT('Hello, World!') (/Lo44wT
STOP }A\s`Hm
END oDogM`T`
\
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d-A
HTML J]yUjnQ[h
<HTML> 3gV
17a
<HEAD> C#d.3t
<TITLE> Hello World! </TITLE> 2a|9D\
</HEAD> h+<vWo}H
<BODY> ?{[ISk)
<p>Hello World!</p> 1O]'iS"
</BODY> Z0uo.
H@.N
</HTML> Tw*:Vw
0tyoH3o/d
n}/?nP\%
HQ9+ :,Z'/e0&
H bnHQvCO3$
}Q&zYC]d
/~~aK2{^X~
INTERCAL (k/[/`3ST
PLEASE DO ,1 <- #13 tIn
dve
DO ,1 SUB #1 <- #238 kDbDG,O
DO ,1 SUB #2 <- #112 b* k=
DO ,1 SUB #3 <- #112 E-gI'qG\(
DO ,1 SUB #4 <- #0 1Tl^mS~k
DO ,1 SUB #5 <- #64 ~Cc%!4f'
DO ,1 SUB #6 <- #238 (#I$4Px{
DO ,1 SUB #7 <- #26 WzG]9$v &
DO ,1 SUB #8 <- #248 UdO(9Jc5^
DO ,1 SUB #9 <- #168 KYa}k0tVAp
DO ,1 SUB #10 <- #24 ^{Wx\+*!
DO ,1 SUB #11 <- #16 z ntvKOIh
DO ,1 SUB #12 <- #158 H4RqOI
DO ,1 SUB #13 <- #52 WV5z~[
PLEASE READ OUT ,1 ! |4fww
PLEASE GIVE UP )S?. YCv?
"#}Uh
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Java stGk*\>U'
public class Hello z`g4 <
{ XBx&&
public static void main(String[] args) wavyREK
{ P:D@5
System.out.println("Hello, world!"); cft/;Au{
} *<r\:g
} <MK4#I1I
a|}v?z\
L#h uTKX}
JSP `r#]dT[g
<% `-_kOxe3
out.print("Hello, world!"); BjX*Gm6l
%> 2/o_,k
xWRkg$A
#su R[K*S
MIXAL % 9Jx|
TERM EQU 19 the MIX console device number 813t=A
ORIG 1000 start address ]?p 9)d=%<
START OUT MSG(TERM) output data at address MSG $Gs9"~z?;
HLT halt execution (#e,tu
MSG ALF "MIXAL" C" SG':
ALF " HELL" c"*xw8|
ALF "O WOR" k2-+3zx
ALF "LD " C>NLZMT
END START end of the program ol3].0Vc]
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zrDcO~w
Nuva t,w'w_C
<..直接输出..> aHR+4m~)
Hello, world! =|+%^)E
P>}OwW
<..或者..> hQb3 8W[
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NI
<. E$"`|Df
// 不带换行 D4OJin^}
? "Hello, world!" qtR/K=^i
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// 或者 `g}po%k
}'`iJb\
// 带换行 fK/|0@B8
?? 'Hello, world!' *-eDUT|O
.> ]Uj7f4)k
T`$!/BlZ
uqHI/4
OCaml <dWms`QcO
let main () = \x=j
print_endline "Hello world!";; 1j_
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}PUY~
u
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Pascal d_1uv_P
program Hello; xLShMv}
begin mS?W+jy%
writeln('Hello, world!'); 2{|mL`$04<
end. nPR*mbW
/Ue_1Efa
oiRrpS\T.
Perl jPIOBEIG
#!/usr/local/bin/perl 4^GIQEjx
print "Hello, world!\n"; +.J/7gD
g/+|gHq^
YZy%]i=1
PHP 6f*QUw~
<?php /?%1;s:'
print("Hello, world!"); h f{RI 4Jc
?> VQ7A"&hh
XK{K FB-
duV\Kt/g^
Pike *"d['V3
#!/usr/local/bin/pike DQ.; 2W
int main() *J3Z.fq%:i
{ 7r{159&=
write("Hello, world!\n"); 888"X3.T
return 0; M@ =VIrX,m
} ,5}")T["u
19;Pjo8
3of0f{ZTj
PL/I |t6 :4']
Test: procedure options(main); SnVb D<
declare My_String char(20) varying initialize('Hello, world!'); 2O(= 2X
put skip list(My_String); ],F@ .pg
end Test; J+u z{
PouWRGS_
;m~%57.;\
Prolog Y'O3RA5E
goal ~COd(,ul
write("hello,world!"). bL2b^UB~%
mvu$
AP9>_0=
Python `Y,<[ Lnr
#!/usr/local/bin/python om{aws;
print "Hello, world!" e"cvo(}g
\# _w=gs<i
r*g<A2g%
REXX ;<H\{w@D
say "Hello, world!" ]6].l$%z#
!h70 <Q^
B*otquz
Ruby aucG|}B
#!/usr/bin/ruby fl+2'~
print "Hello, world!\n" Xcb'qU!2-^
%b>Ee>rdD
H|z:j35\
Scheme m`xzvg
(display "Hello, world!") Cznp(z
(newline) c^7QiTt_
)#v0.pE
h@+(VQ
sed (需要至少一行输入) Qsg([K
sed -ne '1s/.*/Hello, world!/p' o{OY1 ;=6
Eb89B%L62G
~y>N JM>1
Smalltalk B`?5G\7L
Transcript show: 'Hello, world!' Rv|X\Wm
Y(R .e7]
7 ;SI=
SNOBOL <nJ8%aY,
OUTPUT = "Hello, world!" >?(}F':
END 6XI$ o,{
u.,l_D_
C n.x:I@r
SQL hIFfvUl
create table MESSAGE (TEXT char(15)); x%%OgO+>
insert into MESSAGE (TEXT) values ('Hello, world!'); 3?s1Yw>?
select TEXT from MESSAGE; b2XUZ5
drop table MESSAGE; q]wP^;\Jl
v|wO qS
"U*6?]f
Tcl @WICAC=
#!/usr/local/bin/tcl VP_S[+Zv~
puts "Hello, world!" /XXy!=1J
AZfW
T*qSk!
TScript aS&,$sR
? "Hello, world!" ,Kwtp)EX
.y>G/8_i
M`tNYs]V
Turing >_SqM! ^v
put "Hello, world!" x?RYt4 S
Mc<O ~
iDV.C@
UNIX-style shell Gk]6WLi
程序中的/bin/sh可改为您使用的shell UBM:.*wN
{ !NXu
#!/bin/sh L(DDyA{bA
echo 'Hello, world!' MT{ovDA].
i]}`e>fF
rixt_}aE
GUI ;CLOZ{
WO{ET
Delphi Q[MWzsx
program HelloWorld; l1eF&wNC
uses @y(<4kLz
Dialogs; Ms14]M[\
begin `,$PRN"]
ShowMessage('Hello, World!'); cCO2w2A[*
end. z65Q"A
]B3f$;W
=p>IP"HJ
Nuva sU0W)c;
<. Xsd+5="{N
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 1)hO!%
.> N^%7
ayrCLv
aM|;3j1p
Visual Basic I8Q!`KJ
MsgBox "Hello, world!" J4#rOS
'或者 &sg~owz
Print "Hello, world!" ;3Z6K5z*f
!dGSZ|YZ
$u%7]]Y^\
Visual FoxPro dZ`c
? "Hello, world!" R?iC"s!
,dXJCX8so
s5J?,xu
X11 1fqJtP6
用一个程序 1Uk Gjw1J
IIO-Jr
xmessage 'Hello, world!' S(PU"}vZy
!yD$fY
用C++和gtkmm 2 HUalD3
\
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#include <iostream> ;S+]Z!5LT
#include <gtkmm/main.h> U5ME`lN*`
#include <gtkmm/button.h> CkR
95*
#include <gtkmm/window.h> NM+(ss'
using namespace std; ndHUQ$/(
#83pitcc
class HelloWorld : public Gtk::Window )jGB[s";)y
{ vbEO pYCS
public: <