“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,9NUt
5@czK*5
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》。 ahNX/3;y
*:\:5*SY
以下是用不同语言写成的Hello World程序的几个例子: hza> jR
Ada 9q1HSJ1)
with Ada.Text_Io; use Ada.Text_Io; oWp}O?
procedure Hello is ]$~Fzs
begin 8QVE_ Eu
Put_Line ("Hello, world!"); #zS1Zf^KP
end Hello; RCBf;$O
VYamskK[G:
U{uPt*GUd/
汇编语言 v/R[?H)
l'*^$qc
x86 CPU,DOS,TASM 1BQ0M{&
MODEL SMALL )bLGEmm
IDEAL ~u /aOd
STACK 100H ;)(Sdf[P
+yf(Rs)!
DATASEG *Y85DEA
HW DB 'Hello, world!$' ,VNi_.W0
;rB6u_5"I.
CODESEG PiMKu|,3
MOV AX, @data #NvQmz?J?
MOV DS, AX 0xJ7M.
MOV DX, OFFSET HW lPM3}52Xu
MOV AH, 09H BBHK
INT 21H M1oPOC\0.
MOV AX, 4C00H q$r&4s)To
INT 21H F9(._ow[
END t})lr\
AV40:y\RW
0b/ir 2
x86 CPU,GNU/Linux,NASM bIgh@= 2
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 5Sr4-F+@%
;Enter this into "hello.asm" then type: I2f?xJ2/Z
;"nasm -f elf hello.asm" qysTjGwa]
;"ld hello.o -o hello" w8O" =},
;"./hello" KZ=u54
+R-h ,$\=7
section .data ;data section declaration d1v<DU>M
msg db 'Hello World!',0AH pb!V|#u"
len equ $-msg ;string length Cye
T]y
,7GWB:Sk
section .text ;code section declaration vr=~M?
global _start ;entry point (start of execution) f-;$0mTQ
_start: mov edx,len ;string length veeI==]
mov ecx,msg ;string start /~De2mq1
mov ebx,1 ;file handle: stdout 5W/{h q8}}
mov eax,4 ;sys_write BZK2$0
int 80h ;kernel system call HPrq1QpK
R}8XRe
mov ebx,0 ;return value 8S\RN&T$
mov eax,1 ;sys_exit RK[D_SmS
int 80h ;kernel system call vw2`:]Q+
rQ/,XH
"(v%1tGk
x86 CPU,Windows,MASM32 WJ|:kuF
.386 bLzs?eos
.model flat,stdcall h.)h@$d
option casemap:none A /(lK q
;Include 文件定义 T*?s@$)m4
include windows.inc jjRUL.
include user32.inc +oI3I~
includelib user32.lib Q_]d5pl
include kernel32.inc cvnB!$eji
includelib kernel32.lib > _ <'D
;数据段 #2RiLht
.data L*h{'<Bz
szCaption db 'A MessageBox!',0 (a@?s$LG
szText db 'Hello,world!',0 F>zl9Vi<
;代码段 Z:*@5
.code Wy4$*$
start: |Os6V<u"
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK M*sR3SZ
invoke ExitProcess,NULL <[Q3rJ
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> W3r?7!~
end start (-0ePSOG
*4S-z&,.c
k1^\|
AWK z0%\OhuCcf
BEGIN { print "Hello, world!" } #*9-d/K
BHA923p?
[kV;[c}
BASIC \3Pv# )
传统版BASIC(例如GWBASIC): !345 %,
S0d~.ah30
10 PRINT "Hello, world!" +k\Uf*wh
20 END _;1}x%4v
'sh~,+g
或在提示符输入: |4(~%| 8{
lg:
?"Hello, world!":END ;G |i^
/./"x~@
现代版BASIC(例如Quick BASIC): ko;>#::
(*p ,T
Print "Hello, world!" xu5ia|gYz7
Ub1hHA*)
以下的语句在Quick BASIC中同样有效: >Fio;cn?
4y:]DC"
? "Hello,world!" ncu`vYI.
/1N6X.Zb
x8Loyt_C
BCPL (*}yjUYLZ
GET "LIBHDR" 3E3U /K
">f erhN9
LET START () BE l^GP3S
$( Hnknly
WRITES ("Hello, world!*N") ,.iRnR
$) :y*NM,s
U,#yqER'r
'* mH*?Y
Befunge !+>v[(OzM
"!dlrow olleH">v -9N@$+T
, pl@O
N"=[
^_@ 4[Z\
?[
<,o>Wx*1C
d->|EJP
Brainfuck ;!:U((wv
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< vEf4HZ&w
+++++++++++++++.>.+++.------.--------.>+.>. ahx>q
mxor1P#|
!cKz7?w
C R_M?dEtE>
#include <stdio.h> SJD@&m%?[
#/PA A
int main(void) f#+el
y
{ J+rCxn?;g
printf("Hello, world!\n"); Qt_dEl
return 0; hxce\OuU0h
} mF` B#
n]8<DX99Q0
21k5I #U
C++ )`^p%k
#include <iostream> *JggU
G\|,5HED
int main() U(~+o
{ +`3!I
std::cout << "Hello, world!" << std::endl; 3?Y 2L
return 0; o7IxJCL=Q
} gV&z2S~"
~?B;!Csk
ge]STSM0n7
C++/CLI u2
`b'R9
int main() j*~T1i
{ UH3sH
t
System::Console::WriteLine("Hello, world!"); Mq';S^
} 1lv2@QH9
H'Yh2a`!o
o|jIM9/
C# (C Sharp) bWOS `5
class HelloWorldApp 5`f@> r?
{ K~ ;45Z2
public static void Main() /x3/Ubmz~x
{ `xrmT t
X
System.Console.WriteLine("Hello, world!"); L(X6-M:
} |_uaS
} GR\5WypoJ
$s<Ne{?
=4 h+
M$2
COBOL ,o]4?-
IDENTIFICATION DIVISION. CbN!1E6).
PROGRAM-ID. HELLO-WORLD. EbqcV\Kb
}NsUnbxT
ENVIRONMENT DIVISION. _{M\Bs2<
W_0>y9?
DATA DIVISION. {d?$m*YR3`
.7n\d55a
PROCEDURE DIVISION. ?McQr1
DISPLAY "Hello, world!". *OQG4aWy
STOP RUN. 28
3H
86z]<p (
u ElAnrm
Common Lisp ngGO0
(format t "Hello world!~%") z
$MV%F
r-h#{==*c
OQ9x*TmK
DOS批处理 g[w,!F
@echo off 6 PxW8pn
echo "Hello, world!" j;+?HbL
Un6/e/6,
^FnfJ:
Eiffel s`#(
class HELLO_WORLD ;[a|9TPR
}2ZsHM^]%
creation *3D%<kVl
make /Wf^hA
feature X6^},C'E.:
make is }MlwC;ot
local IJ/sX_k
io:BASIC_IO uPniLx\t:
do A19;1#$=
!!io E#s)52z=B
io.put_string("%N Hello, world!") nVJPR
end -- make hS9;k9w
end -- class HELLO_WORLD "]-Xmdk09
b=/curl&
~,2/JDVJ5-
Erlang x|{IwA9
-module(hello). n#=o?!_4
-export([hello_world/0]). Ka,^OW}<%q
cm[c ze+*
hello_world() -> io:fwrite("Hello, World!\n"). kCXdGhb
[}fv dW
?ByM[E$
Forth kHqzt g
." Hello, world!" CR vp.ZK[/`
pa{re,O"e
rLX4jT^
Fortran ]G2uk`
WRITE(*,10) 'KPASfC
10 FORMAT('Hello, World!') PdVfO8-
STOP [{X^c.8G)
END yZ!T8"mz{
72,rFYvpK
ooV*I|wcI
HTML y7^{yS[,
<HTML> Sua[O$
<HEAD> m:hY`[ f6
<TITLE> Hello World! </TITLE> Zo{$
</HEAD> ce6__f5?
<BODY> o`.R!wm:W
<p>Hello World!</p> Q#EP|
</BODY> nF5qw>t#
</HTML> 3 LdQ]S
x1ztfJd
q=lAb\i
HQ9+ 4GB7A]^E
H HQ{JwW!m
"5A&_E }3
+NFzSal
INTERCAL Dn>%%K@0
PLEASE DO ,1 <- #13 C^)*Dsp
DO ,1 SUB #1 <- #238 ko^\HSXl
DO ,1 SUB #2 <- #112 Q%-di=
DO ,1 SUB #3 <- #112 {%#)5l)
DO ,1 SUB #4 <- #0 CZbYAxNl
DO ,1 SUB #5 <- #64 Rml2"9"`
DO ,1 SUB #6 <- #238 !'Q -yoHKD
DO ,1 SUB #7 <- #26 NuU9~gSQ
DO ,1 SUB #8 <- #248 boo
}u
DO ,1 SUB #9 <- #168 Sc7U|s
DO ,1 SUB #10 <- #24 sFBneBub
DO ,1 SUB #11 <- #16 ^3hn0DVQ
DO ,1 SUB #12 <- #158 iH.$f /)N
DO ,1 SUB #13 <- #52 b]a@
PLEASE READ OUT ,1 wW"z
PLEASE GIVE UP aAy'\T$x.
nbG/c80
;us%/kOR
Java yObuWDA9
public class Hello q%5eVG
{ ykrr2x
public static void main(String[] args) 2On_'^O
{ *:O.97q@h
System.out.println("Hello, world!"); J6<rX[
yZe
} Z;h<6[(
} S(mF%WJ
`EtS!zD~b
+x1eJug4
JSP u=YX9Mo!
<% ,hVvve,j}
out.print("Hello, world!"); .I@CS>j
%> 3~#h|?
I=;+n-
S"wg2X<
MIXAL c"n ?'e
TERM EQU 19 the MIX console device number |+$%kJR=
ORIG 1000 start address w}{5#
START OUT MSG(TERM) output data at address MSG x2QIPUlf
HLT halt execution :{q"G#
MSG ALF "MIXAL" Skz|*n|eY
ALF " HELL" "@9?QI}
ALF "O WOR" 3v")J*t
ALF "LD " c/5W4_J
END START end of the program Iyo@r%I
H'qG/@u-l
hd 0'u
Nuva 7#<c>~
<..直接输出..> +
S4fGT
Hello, world! VtOZ%h[#
'q * Bdx
<..或者..> +-B^Z On
_uc\ D
R
<. 0R0{t=VJZ
// 不带换行 a=TG[* s
? "Hello, world!" wZh:F
!
}oJAB1'k
// 或者 s`Cy
a`
L^^4=ao0
// 带换行 }CxvT`/
?? 'Hello, world!' ?RzD Qy D
.> M. td^l0
oQ=>'w
-{
u*qtp
OCaml B-d(@7,1
let main () = RwVaZJe)l
print_endline "Hello world!";; na^sBq?\
RmI1`
_73h<|0
Pascal 5(
_6+'0
program Hello; C>Is1i^9
begin MCh#="L2
writeln('Hello, world!'); .qob_dRA
end. !6}O.Nu
vKoP|z=m
#'4OYY.
Perl vB!|\eJ
#!/usr/local/bin/perl U1_&gy @y
print "Hello, world!\n"; T#Z%y!6
Npn=cLC&
, %YBG1E[y
PHP x7T+>
<?php O--7<Q\
print("Hello, world!"); [Vdz^_@Y
?> oVCmI"'
*V(Fn-6(
_GqS&JHSf
Pike A-CUv[pM
#!/usr/local/bin/pike !G_jGc=v
int main() zdSh:
{ 9SMiJad<
write("Hello, world!\n"); hnWo|! ,O$
return 0; %i)B*9k
} 2i|B=D(
9N[EZhW
bzi|s5!'<
PL/I 7+w'Y<mJ
Test: procedure options(main); +rWZ|&r%
declare My_String char(20) varying initialize('Hello, world!'); @6o]chJo
put skip list(My_String); DG;y6#|p
end Test; (
#&|Dp^'
ngi<v6 i
}%{MPqg
Prolog g<\z= H
goal nws"RcP+Z
write("hello,world!"). 8Z85D
#ZiT-
7 gB{In0
Python +Zk,2ri
#!/usr/local/bin/python 2k#t
.-
print "Hello, world!" *Dr5O 9Y
"Mmf6hu
O_K_f+7
REXX #G3N(wV3
say "Hello, world!" > 8]j
`Iy4=nVb
o07IcIo
Ruby }fhHXGK.
#!/usr/bin/ruby y,+[$u7h
print "Hello, world!\n" !F!3Q4
bdh(WJh%
9>,Qgp,w
Scheme '~-IV0v9
(display "Hello, world!") TA}UY7v
(newline) >Cd9fJ&0gP
qX>Q+_^
L&Qi@D0P
sed (需要至少一行输入) %Ny) ?B
sed -ne '1s/.*/Hello, world!/p' N
b3$4(F
7y*ZXT]f
[~Hg}-c
Smalltalk 3/M.0}e
Transcript show: 'Hello, world!' EH`0
:h";c"
1(`M~vFDK
SNOBOL [EHrIn
OUTPUT = "Hello, world!" ?)tK!'
END ]jM^Z.mI+
9]_GNk-D
nbvkP
SQL W7G9Kx1Y
create table MESSAGE (TEXT char(15)); 2DMrMmLI
insert into MESSAGE (TEXT) values ('Hello, world!'); ^>r^3C)_-
select TEXT from MESSAGE; r25Z`X Z
drop table MESSAGE; fB#XhO
,9/5T: 2
`"y{;PCt_
Tcl I
8Y*@$h
#!/usr/local/bin/tcl ^GXEJU7U
puts "Hello, world!" fCEz-TMW
9d[qhkPu)
k7 bl'zic
TScript L]zNf71RD
? "Hello, world!" oK-!(1A-
8l xY]UT
sj9D
Turing cNP/<8dq
put "Hello, world!" B7"Fp
k0&lu B%
kHU"AD}.
UNIX-style shell M4<+%EV}
程序中的/bin/sh可改为您使用的shell }bfn_ G
ch,| 1}bi
#!/bin/sh r<FQX3
echo 'Hello, world!' F2oJ]th.3
Ku%6$C!,
3YTIH2z5
GUI rye)qp|
:Ee ?K
Delphi G\/IM
program HelloWorld; d/B*
uses 9.Ap~Ay.
Dialogs; (UW6F4:$
begin U1^l+G^,~
ShowMessage('Hello, World!'); w#{l4{X|
end. :,C%01bH|l
ze"~Ird
Z t`j\^4n
Nuva tP]q4i
<. |a(Q4 e/,
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) -931'W[s,
.> u`p_.n:5)
y"R("j $
@W [{2d
Visual Basic PdM*5g4
MsgBox "Hello, world!" ] piM/v\
'或者 &l!$Sw-u;
Print "Hello, world!" +wts 7,3
zv9MHC
&
&
>b+loF
Visual FoxPro ]|BojSL_
? "Hello, world!" C@)pmSQ
|J?:91
AgI >
X11 WJcVQMs
用一个程序 '8Qw:f h
%L cH>sV
xmessage 'Hello, world!' }MjQP R
1*#bfeoM
用C++和gtkmm 2 9i[4"&K
uri*lC
#include <iostream> ^cb)f_90
#include <gtkmm/main.h> u
!.DnKu
#include <gtkmm/button.h> cI3KB-lM#
#include <gtkmm/window.h> M4H"].Zm
using namespace std; :s-EG;.
=?+w)(*0c
class HelloWorld : public Gtk::Window n\*JaY
{ (7 ijt
public: Xvq^1Y?
HelloWorld(); l<n5gfJ
virtual ~HelloWorld(); \AHY[WKx
protected: Za9$Hh/X
Gtk::Button m_button; W1<