“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。 HkL:3 E.
>x3$Ld
将Hello World程序作为第一个学写的程序,现在已经成为一种传统。该程序最早出现在由Brian Kernighan和Dennis Ritchie写的计算机程序设计教程《C语言程序设计》。 vT&)
5nN
9'5`0$,|^
以下是用不同语言写成的Hello World程序的几个例子: YaT6vSz
Ada jR_o!n~5
with Ada.Text_Io; use Ada.Text_Io; 0^-1/Ec
procedure Hello is yU{Q`6u T
begin C]bre^q
Put_Line ("Hello, world!"); (>R
end Hello; Q`B K
R]/
6SqS\ 8
*q$O6B-
汇编语言 +@"Ls P
fN!lXPgM
x86 CPU,DOS,TASM H5)8TR3La
MODEL SMALL #1z/rUh`Cr
IDEAL |lG7/\A
STACK 100H `:Bm@eN
n([9U0!gu
DATASEG QSNPraT
HW DB 'Hello, world!$' u= =`]\_@
`Q!#v{
CODESEG &*YFK/ ]
MOV AX, @data %jErLg
MOV DS, AX N87)rhXSo,
MOV DX, OFFSET HW `bJ?8~ 8*
MOV AH, 09H 1va~.;/rG
INT 21H z4iTf8
MOV AX, 4C00H ^B!cL~S*I
INT 21H oO4hBM([
END hqW),^\>'
Rh,a4n?W
6BdK)s
x86 CPU,GNU/Linux,NASM ak"W/"2:
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ?e#bq]
;Enter this into "hello.asm" then type: \n>7T*iM&
;"nasm -f elf hello.asm" Z4s+8cTHn
;"ld hello.o -o hello" eD,'M
;"./hello" hCPyCq]
gjL+8Rk
section .data ;data section declaration H{et2J<H
msg db 'Hello World!',0AH ]J^/`gc
len equ $-msg ;string length HDYWDp
$e, N5/O
section .text ;code section declaration 5kik+
global _start ;entry point (start of execution)
qHl>d*IZ
_start: mov edx,len ;string length )qua0'y]@
mov ecx,msg ;string start &hcD/*_Z
mov ebx,1 ;file handle: stdout O)8$aAJ)V
mov eax,4 ;sys_write re)7h$f}
int 80h ;kernel system call GCj[ySCD
=eyPo(B
mov ebx,0 ;return value .(%]RSBY
mov eax,1 ;sys_exit TXS{=
int 80h ;kernel system call -A^o5s
Y&j'2!g
+yI2G!
$T9
x86 CPU,Windows,MASM32 x8o/m$[,=u
.386 D4O^5?F)|
.model flat,stdcall Ke^9R-jP
option casemap:none {_R{gpj'
;Include 文件定义 &Lbh?C
include windows.inc hplx s#
include user32.inc U'LPaf$O
includelib user32.lib vcC"
include kernel32.inc ~~3*o
includelib kernel32.lib 6F_:,b^
;数据段 ~wQ M
?h
.data 1 T}jK^"
szCaption db 'A MessageBox!',0 Z.b?Jzj
szText db 'Hello,world!',0 ny}_^3
;代码段 ?=,7'@e
.code ](^FGz
start: -_M':
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK ~(`&hYE
invoke ExitProcess,NULL Fh4Exl@6
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> vDIsawbHD
end start >c$3@$
T>|Y_3YO_a
SmUiH9qNd,
AWK u
s8.nL/
BEGIN { print "Hello, world!" } xYY^tZIV
>*EJ6FPO
K{9
BASIC 0jt@|3
传统版BASIC(例如GWBASIC): LRR)T: e}q
]:}7-;$V
10 PRINT "Hello, world!" LK<ZF=z]Z
20 END :<v@xOzxx
JkQ\r$Y.
或在提示符输入: CIVV"p`}
}:S}jo7
?"Hello, world!":END Bkg./iP5x
Z>~7|vl
现代版BASIC(例如Quick BASIC): U ]7;K>.T
|Yv,zEY)
Print "Hello, world!" J&bMox
e?N3&ezp
以下的语句在Quick BASIC中同样有效: ,ZVhL* "
`)>}b 3
? "Hello,world!" !DD4Bqez
hW` o-'
fNV-_^,R9
BCPL 4 ]ko
GET "LIBHDR" -"I9`
ikO9p|J
LET START () BE @ +a}O
$( {{AZW
WRITES ("Hello, world!*N") 6Ilj7m*
$) PAH#yM2Ic
eIOMW9Ivt
7eW6$$ju,N
Befunge ZiRCiQ/?
"!dlrow olleH">v Zy|u5J
, \YHl(
^_@ >Bu_NoM
""m/?TZq'
NN5G
'|i
Brainfuck v5&W)F
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< )P,pW?h$
+++++++++++++++.>.+++.------.--------.>+.>. i(*fv(z
+:W? :\
EKS?3z%!
C 7I*rtc&Kb
#include <stdio.h> 9i
D&y)$"
[Fv_~F491
int main(void) "'XYW\bI
{ q\<NW%KtX
printf("Hello, world!\n"); }h* j{b,
return 0; c7R&/JV
} HBs
6:[q
h)aLq
;9q$eK%d
C++
@H^\PH?pp
#include <iostream> @jq H8
N`qGwNT%G
int main() foB&H;A4oC
{ N34bB>_
std::cout << "Hello, world!" << std::endl; )6eFYt%c
return 0; eu?P6>urA
} ?A~=.u@[d
0DN&HMI#
Z_7TD)
C++/CLI WI.+9$1:P
int main() k(v &+v
{ .4[M-@4+]
System::Console::WriteLine("Hello, world!"); B9,
} 44KWS~
3>=G-AH/$K
O;T)u4Q&3
C# (C Sharp) +;Gvp=hk
class HelloWorldApp ca,c+5
{ #a'CoJs
public static void Main() *Wcq'S
{ l{VJaZ $M
System.Console.WriteLine("Hello, world!"); YG)7+94
} G^SDB!/@J
} uC6e2py<[
E.-2 /'i
~H"-km"@
COBOL ;=@?( n
IDENTIFICATION DIVISION. f9hH{(A
PROGRAM-ID. HELLO-WORLD. ^K
9jJS9K
V#c=O}
ENVIRONMENT DIVISION. buWF6LFC
/b6j<]H
DATA DIVISION. 7t78=wpLc
ZS@R ?
PROCEDURE DIVISION. vkW;qt}yO
DISPLAY "Hello, world!". KqNsCT+j
STOP RUN. &yqk96z
Xob(4
FY]Et=p
Common Lisp W#wC
(format t "Hello world!~%") 5"+;}E|q
RhE|0N=
J`wx72/-ZW
DOS批处理 9Z3Vf[n5\
@echo off ^Nysx ~6
echo "Hello, world!" 1J&hm[3[K
[kPl7[OL
7'@~TM
Eiffel x7xQrjE
class HELLO_WORLD ("=24R=a
<u
creation AZ-JaE
make ntZHO}'
feature b'RBel;W
make is )1O|+m k
local }c#W"y5l_
io:BASIC_IO =CaSd|
do &*~_ "WyU
!!io :r&4/sN}<
io.put_string("%N Hello, world!") <,9rXjeRl
end -- make |;YDRI
end -- class HELLO_WORLD 0X%#9s~
I3Ad+]v
y"zZ9HQM
Erlang 6O'Y@9#
-module(hello). ~sCdvBA
-export([hello_world/0]). @~IZ%lEQsD
(T",6 xBSG
hello_world() -> io:fwrite("Hello, World!\n"). kB-<17
quFNPdP
Q*/jQC
Forth }/7rA)_
." Hello, world!" CR Angt=q
t5S!j2E
&=lhKt
Fortran q)tNH/
WRITE(*,10) +^%0/0e
10 FORMAT('Hello, World!') AHLXmQl
STOP H8!lSRq
END f5.Be%
0Rh*SoYrC
t>"|~T$9
HTML s18A
<HTML> YKa9]Q
<HEAD> gy/bA
<TITLE> Hello World! </TITLE> EOf*1/Ih
</HEAD> 7nbaR~ZV
<BODY> 1(
]{tF
<p>Hello World!</p> cUU"*bA#
</BODY> KocNJ
TB
</HTML> 4aG}ex-s|
,L8(Vo`-
7*47mJyc
HQ9+ ,f[Oy:fr
H hj3wxH.}
#M:Vwn
JX
kT&GsR/
INTERCAL <J!?eH9f
PLEASE DO ,1 <- #13 FX/f0C3CK
DO ,1 SUB #1 <- #238 UFr5'T
DO ,1 SUB #2 <- #112 R%;dt<Dh
DO ,1 SUB #3 <- #112 v$R7"
DO ,1 SUB #4 <- #0 'zYx4&s
DO ,1 SUB #5 <- #64 D(M^%z2N
DO ,1 SUB #6 <- #238 `w%Qs)2
DO ,1 SUB #7 <- #26 4J2C#Cs
DO ,1 SUB #8 <- #248 g<MCvC@
DO ,1 SUB #9 <- #168 NKRH>2,
DO ,1 SUB #10 <- #24 o>\epQt~/p
DO ,1 SUB #11 <- #16 <7J\8JR&=
DO ,1 SUB #12 <- #158 wmFS+F4`2
DO ,1 SUB #13 <- #52 lf2(h4[1R
PLEASE READ OUT ,1 lkgB,cflpi
PLEASE GIVE UP w'P!<JaZ
c]/&xRd
mvGj
!'
Java &+8cI^kp
public class Hello p}-B>v
{ e}W|wJ):j@
public static void main(String[] args) MH_3nN
{ Z~DR,:
System.out.println("Hello, world!"); b$eZ>X
} SR {KL#NC
} [!b=A:@
x=VLRh%Gvl
EY[J;H_b
JSP ]08
~"p
<% 0uf)6(f
out.print("Hello, world!"); IHNl`\Le
%> nSh}1Arp/
psE&Rx3)
FFID<Lf/2
MIXAL T&kr IZw
TERM EQU 19 the MIX console device number %8T"h
ORIG 1000 start address 4$jb-Aw
START OUT MSG(TERM) output data at address MSG %jmL#IN)
HLT halt execution ]"4\]_?r
MSG ALF "MIXAL" )nA fT0()0
ALF " HELL" !;;WS~no3
ALF "O WOR" hZLwg7X!
ALF "LD " i?CXDuL
END START end of the program y4~;H{!
d@_|
zsha/:b
Nuva ,.&y-?
<..直接输出..> g:CMIe4
Hello, world! \Dr?}D
/l$>W<}@
<..或者..> <GRrw
x9VR>ux&
<. @b"J FB|
// 不带换行 }o MY
? "Hello, world!" O#S27.
WEFvJ0]
// 或者 \*k}RKDwT
W4o$J4IX{
// 带换行 r__Y{&IO
?? 'Hello, world!' x6={)tj
.> mu}T,+9\
*T{P^q.s~[
BX=YS)
OCaml *FrlzIAom
let main () = 1dahVc1W
print_endline "Hello world!";; [<p7'n3x
~]&,v|g&
tW|K\NL
Pascal S 8$kxQg
program Hello; \5s#9
begin dwAFJhgh
writeln('Hello, world!'); U$5 lh
end. N]6M4j!
^q=D!g
Ot#O];3
Perl (( D*kd"
#!/usr/local/bin/perl '8b/TL
print "Hello, world!\n"; 'Bv)UfZ
0kdPr:B Q0
}+4^ZbX+:
PHP PtT=HvP!k
<?php N-4k
9l1
print("Hello, world!"); xVn"xk
?> -1 Ok_h"
Zw`vPvb!
ZH<:YOQ
Pike ]c'12 g]h
#!/usr/local/bin/pike xF4>G0
int main() H=j&uv8
{ [spJ%AhV
write("Hello, world!\n"); a*Oc:$
return 0; Pgg\(D#X`
} c{dge/2yb
>5Rcj(-&l
cnR.J
PL/I (ugB3o
Test: procedure options(main); ,c;u]
declare My_String char(20) varying initialize('Hello, world!'); VdZmrq;?/
put skip list(My_String); 5 uU.K3G7
end Test; DFKumw>!
Z`=[hu
@1w9!\7Vt
Prolog {{WA=\N8C
goal t)*MLg<C
write("hello,world!"). ^/<0r]=
.%pbKi
`
lo%:$2*'p
Python 8RfFP\ AP
#!/usr/local/bin/python 2$MIA?A"Y
print "Hello, world!" >(}
I7
;gC.fpu
J4-64t nZ
REXX $~[k?D
say "Hello, world!" cnUYhxE+s
?5A!/`E&%
YtzB/q8I
Ruby &3Q!'pJJ
#!/usr/bin/ruby 'ow`ej
print "Hello, world!\n" ~e,D`Lv
e*7nq~ B5
yH'vhtop
Scheme V?a+u7*U&
(display "Hello, world!") G8y:f%I!b
(newline) \m3;<A/3n
F3aOKV^
+$hqwNh@Z@
sed (需要至少一行输入) ndIf1}
sed -ne '1s/.*/Hello, world!/p' p@H3NX
|]dA`e&y
SA| AS<
Smalltalk &vf%E@<
Transcript show: 'Hello, world!' CMm:Vea
Kd?TIeF E
(o!v,=# 6{
SNOBOL ]"jJgO^
OUTPUT = "Hello, world!" `kn 'RZR
END .o(XnY)cgJ
l Ikh4T6i
Vt {uG
SQL `h>a2
create table MESSAGE (TEXT char(15)); hP=^JH
insert into MESSAGE (TEXT) values ('Hello, world!'); om`x"x&6
select TEXT from MESSAGE; O>Vb7`z0<
drop table MESSAGE; qP"+SVqC
/kl41gx
y~.k-b<{[
Tcl nN=o/z d
#!/usr/local/bin/tcl 2VrO8q(
puts "Hello, world!" @WV}VKm
td:GZ %
U>b mCK2
TScript =l %
? "Hello, world!" @a08*"lbp
5J d7<AO_
OJ (ho&((
Turing XYJ7k7zc+Y
put "Hello, world!" '[E|3K5d
2S~cW./#fX
}@kD&2
UNIX-style shell HN/ %(y
程序中的/bin/sh可改为您使用的shell 3ErW3Ac Ou
e)pQh&uD
#!/bin/sh C+,JLK
echo 'Hello, world!' ea"!:cL(g
Q\pTyNAYn
:[;]6;
GUI %?GLMf7)
<Yzk]98W5.
Delphi [D8u.8q
program HelloWorld; DB1GW,
uses 4eZ
Dialogs; NQ7j{dJ?
begin *Y4h26
ShowMessage('Hello, World!'); {s=n "*Qp)
end. i%1ny`Q
8<,b5
_/@VV5Mq
Nuva X6+2~'*t
<. (7C&I-l
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) Gi7jgv{{
.> XCQS_'D
udRum7XW3
3=6`'PKRQ
Visual Basic BXNt@%
MsgBox "Hello, world!" m!{}Y]FZn
'或者
tCT-cs
Print "Hello, world!" m7zx,bz>
?vHow$
Y^zL}@
Visual FoxPro ?y.q<F)
? "Hello, world!" U}H2!et&,)
1!u}~E_
$
O1w6\}_
X11 a&>Tk%
用一个程序 k=t\
+f{CfWIKs
xmessage 'Hello, world!' 2C9wOO
Y2&>;ym!
用C++和gtkmm 2 /u9Md 3q*'
w28!Yj1Q
#include <iostream> %s.hqr,I
#include <gtkmm/main.h> mL\j^q,Y
#include <gtkmm/button.h> )` nX~_'p
#include <gtkmm/window.h> | aH;@V
using namespace std; D`nW9i7
dXAKk[uf
class HelloWorld : public Gtk::Window Of)EBa<5^
{ 44H#8kV
public: PJC[#>}
HelloWorld(); ,|gX?[o
virtual ~HelloWorld(); ?k lV;+
protected: Q>\y%&df
Gtk::Button m_button; g~ tG
virtual void on_button_clicked(); |ITSd%`3_
}; hFORs.L&G
mQRQ2SN6
HelloWorld::HelloWorld() : m_button("Hello, world!") &!I^m
{ \3P.G S{l
set_border_width(10); mZ;W$y SO
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); kV@*5yc?R
add(m_button); w(w%~;\kLP
m_button.show(); EleK*l
} hZ0p /Bdv
s:
c
HelloWorld::~HelloWorld() {} (2He]M\
|*4)G6J@n
void HelloWorld::on_button_clicked() auOYi<<>W
{ ]h0Fv-[A
cout << "Hello, world!" << endl; x`'2oz=,F4
} :3qA7D }
5oz[Njq4
int main (int argc, char *argv[]) :tP:X+?O
{ pdnkHR$
Gtk::Main kit(argc, argv); xk}(u`:.
HelloWorld helloworld; i2or/(u`
Gtk::Main::run(helloworld); h1 \)_jxA
} vkmTd4g
*uYnu|UQH
kc&