“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。 hnL(~
CEt_wKzf
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》。 #kk_iS>8
Nqz-Mr`
以下是用不同语言写成的Hello World程序的几个例子: 3)I v8mA
Ada 2L ~U^
with Ada.Text_Io; use Ada.Text_Io; -H{c@hl
procedure Hello is lAV6z%MmM
begin /9W-;l{=z
Put_Line ("Hello, world!"); HA"LU;5>2J
end Hello; vBq2JJAl
L<J%IlcfO
.GLotc
汇编语言 {P(IA2J'S
zaR~ fO
x86 CPU,DOS,TASM (eG#JVsm9
MODEL SMALL [K%Jt
IDEAL tHD
mX
STACK 100H kVZ>Dc2M
IB(5 &u.
DATASEG N(/DC)DJg
HW DB 'Hello, world!$' [G4#DP\t>p
XA>@0E>1r
CODESEG -,3Ka:
MOV AX, @data ZJ u\
MOV DS, AX H?M8j] R-)
MOV DX, OFFSET HW r's4-\
MOV AH, 09H 7RTp+FC]
INT 21H G$Z8k,g+<7
MOV AX, 4C00H (8k3z`
INT 21H > lN{FJ
END r!#NFek}
ln#Lx&r;|
A .*}<
x86 CPU,GNU/Linux,NASM )=ZWn,ZB
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). xs+MvXTC
;Enter this into "hello.asm" then type: ^BSMlKyB
;"nasm -f elf hello.asm" wQ@@|Cj4L
;"ld hello.o -o hello" WRL &tz
;"./hello" rEz=\yY^j'
W/xb[w9v
section .data ;data section declaration X|@|ZRN
msg db 'Hello World!',0AH &nTB^MF
len equ $-msg ;string length tJ[Hcx*N
KGzBK:
section .text ;code section declaration y~Sh|2x8v
global _start ;entry point (start of execution) .,<-lMC+
_start: mov edx,len ;string length = M ?
mov ecx,msg ;string start ~~b[X\1
mov ebx,1 ;file handle: stdout XEY((VL0
mov eax,4 ;sys_write zEpcJHI%
int 80h ;kernel system call <JDkvpckx.
Z3T:R"l;
mov ebx,0 ;return value |Zncr9b
mov eax,1 ;sys_exit OT\[qaK
int 80h ;kernel system call zT`LPs6T
K%$%9y
xsV(xk4
x86 CPU,Windows,MASM32 )#M*@e$k
.386 Ga"$_DyM
.model flat,stdcall 5}E8Tl
option casemap:none k g0Z(T:&8
;Include 文件定义 'l!tQD!
include windows.inc p 8Ts5n
include user32.inc %)u5A!"
includelib user32.lib \c_1uDRoUn
include kernel32.inc Hq< Vk.Nk
includelib kernel32.lib SPn0D9b]
;数据段 g_5:o
3s
.data +mYD
DlvI
szCaption db 'A MessageBox!',0 N@)tU;U3O
szText db 'Hello,world!',0 )9l5gZX'I
;代码段 +^{yJp.H#
.code 6ZR'1_i6i=
start: j ]F
Zy
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK r[JgCj+$&
invoke ExitProcess,NULL {{SeD:hx
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> l%rwJLN1
end start 8lT.2H
b_z;^y~
y`! 3Z} 7
AWK jun>(7
BEGIN { print "Hello, world!" } .COY%fz
7.hn@_
XW%!#S&;X
BASIC q_ykB8Ensa
传统版BASIC(例如GWBASIC): t%/Y^N;
G<Z|NT
10 PRINT "Hello, world!" GNT1FR
20 END hF.9\X]
Yhb=^)@))
或在提示符输入: tHJ#2X#Y.
"fL:scq@0
?"Hello, world!":END th2a'y=0
}pTy mAN
现代版BASIC(例如Quick BASIC): *U)!9DvA
qR--lvO
Print "Hello, world!" 7fgA)dU:K
BOoLs(p
以下的语句在Quick BASIC中同样有效: $7T3wv9
A|O7W|"W
? "Hello,world!" MrXhVZ"d*
L/_OgL]YdI
7eqax33f
BCPL (B}+uI{
GET "LIBHDR" r~si:?6:
Q+U}
LET START () BE %mAgE\y25
$( ?*tb|AL(R
WRITES ("Hello, world!*N") u0Fu_Rtr
$)
pBG(%3PpW
eZ(<hE>
[2a*TI
Befunge _}vD?/$L
"!dlrow olleH">v "Rf8#\Y/<
, 2fu|X#R
^_@ |nk&ir6
AL>*Vj2h/n
^^qB=N[';
Brainfuck 2a3hm8%U
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< SYOND>E
+++++++++++++++.>.+++.------.--------.>+.>. l23_K7
/o*r[g7<
BHy#g>KUF
C xVao3+r
#include <stdio.h> .nJErC##
loZJV M
int main(void) y<.0+YL-e+
{ 4/e-E^
printf("Hello, world!\n"); HW;,XzP=
return 0; 82WXgB>
} [k ZvBd
KDhr.P.~
w*Vf{[a'
C++ uHkL$}C
#include <iostream> %K@D{)r_^
G9TK)Nz
int main() 2M3.xUS
{ hu%UEB
std::cout << "Hello, world!" << std::endl;
n4h@{Xg
return 0; }xJ9EE*G/
} \Azl6`Em
x00"d$!
%=xR$<D
C++/CLI o$FqMRep
int main() )q&=x2`
{ snT! 3t
System::Console::WriteLine("Hello, world!"); +R@5e+auQ.
} K'+GK S7.
0K <@?cI
? "]fGp6y
C# (C Sharp) Jtnuo]{R
class HelloWorldApp Uc/MPCqZ
{ <03 @c s
public static void Main() ?g+0S@{i $
{ 8l-+
4~mH
System.Console.WriteLine("Hello, world!"); WBFG_])
} u>Z;/kr
} lR\=] ]7I>
HaXlc8
>:!TfuU^R
COBOL 8zS't2
u
IDENTIFICATION DIVISION. AdxCP\S&
PROGRAM-ID. HELLO-WORLD. x]&V7Y
$`W.9
ENVIRONMENT DIVISION. WX&Man!f
WHk/Rg%<
DATA DIVISION. axW3#3#`
-yHVydu=
PROCEDURE DIVISION. RUC
V!L
DISPLAY "Hello, world!". J?&lpsB3_l
STOP RUN. 7d*SZmD
Ml1yk)3G
ER~m
&JI
Common Lisp uh*b[`e
(format t "Hello world!~%") E}sjl
{|c
<8
|v#N
DOS批处理 Adp:O"-H1o
@echo off hPLQ)c?
echo "Hello, world!" ^B8%Re%
$p30?\
-Qgu6Ty
Eiffel ] S<y,d-
class HELLO_WORLD O?/\hZ"&c
"z)dz,&T
creation NTS
tk{s,
make s,XKl5'+8e
feature pV]m6!y&
make is fEf",{I
local n0 q5|ES
io:BASIC_IO r e.chQ6
do JG @bl
!!io rT9<_<
io.put_string("%N Hello, world!") uUu]JDdz
end -- make ?W-J2tgss{
end -- class HELLO_WORLD 4:RL[;
y
Dg
jE|Ju:}&
Erlang D[ U[D
-module(hello). &;S.1tg
-export([hello_world/0]). t-*oVX3D
c-.t8X,5(~
hello_world() -> io:fwrite("Hello, World!\n"). rK)aR
2j&-3W$^
h$.y)v
Forth KSU?Tg&JR
." Hello, world!" CR e0Cr> I5/e
+a_eNl,
F#>?i}
Fortran ig:,: KN
WRITE(*,10) A ^@:Ps
10 FORMAT('Hello, World!') UhQ [|c
STOP XF(0>-
END L/dG0a@1X
H)S" `j
2V%si 6
HTML ${Cb1|g>j
<HTML> `p1szZD&
<HEAD> (~}IoQp>
<TITLE> Hello World! </TITLE> %tEjf
3
</HEAD> |3`Sd;^;
<BODY> )/kkvI()l
<p>Hello World!</p> F!OVx<
</BODY> S'm&Ll2i@
</HTML> <cm,U)j2
a]XQM$T$
c+chwU0W
HQ9+ Y^$^B,
H o"dX3jd
.^j 6
X-&t!0O4}`
INTERCAL EEFM1asJf
PLEASE DO ,1 <- #13 E/z^~;KA
DO ,1 SUB #1 <- #238 o5?f]Uq5 ,
DO ,1 SUB #2 <- #112 b)RU+9x &
DO ,1 SUB #3 <- #112 ,{P*ZK3u
DO ,1 SUB #4 <- #0
J4 [7*v
DO ,1 SUB #5 <- #64 UUi@
U
DO ,1 SUB #6 <- #238 GADb Xp3
DO ,1 SUB #7 <- #26 LN}eD\
DO ,1 SUB #8 <- #248 Nr)v!z~y
DO ,1 SUB #9 <- #168 TD:NL4dm
DO ,1 SUB #10 <- #24 |;3Ru vX?+
DO ,1 SUB #11 <- #16 ={,\6a|]:
DO ,1 SUB #12 <- #158 ?;Dh^mc
DO ,1 SUB #13 <- #52 `_Iy8rv:P
PLEASE READ OUT ,1 _|qJ)gD[
PLEASE GIVE UP ov&4&v
I@IZ1
/J,r
o&}!bq]
Java dx}) 1%
public class Hello )HbsUm#
{ $GhdH)
public static void main(String[] args) F0h`>{1%
{ 7pH`"$
System.out.println("Hello, world!"); (8DJf"}
} sUA==k
} 9a}rE
1sp>UBG
j}R!'m(P'
JSP <y#-I%ed
<% ?u.&BP
out.print("Hello, world!"); , 6 P:S7
%> tUouO0_l
_)s<E9t2N
MTJ ."e<B
MIXAL 'L|& qy@
TERM EQU 19 the MIX console device number ^UI{U1N~Bz
ORIG 1000 start address !]AM#LJ
START OUT MSG(TERM) output data at address MSG feM%-
HLT halt execution {"|P
MSG ALF "MIXAL" OI0#@_L&
ALF " HELL" 2z9\p%MX
ALF "O WOR" IsjxD|u
ALF "LD " PqV9k,5f
END START end of the program V|GH4DT=
/RD@ [ 8
Fm}#KE0
Nuva LV|ZZ.d h
<..直接输出..> ?blF6Kl$
Hello, world! F:nhSd
Ibt~e4f
<..或者..> c\"t+/Z
K%AbM#o<
<. +oa\'.~?
// 不带换行 ,#&\1Vxf
? "Hello, world!" KwGk8$ U
VN!`@Ci/
// 或者 S+(TRIjk
q =sEtH=
// 带换行 ":s1}A
?? 'Hello, world!' al>^}:
.> lbM)U
A[lbBR
7<{g+Q~7*
OCaml p!qV!:
let main () = ^Ud1 ag!-
print_endline "Hello world!";; \a\-hm
Co[fq3iX#
h^_Sd"l3
Pascal /d; C)%$
program Hello; Gx Z'" x
begin J2A+x\{<
writeln('Hello, world!'); k#mQLv
end. 1>hY!nG h
y/U(v"'4U
g '2'K
Perl %04N"^mT'~
#!/usr/local/bin/perl 6*yt^[W
print "Hello, world!\n"; Qtj.@CGB
eeKErpj8A
05=
$Dnv
PHP /{Ff)<Q.Z
<?php I5EKS0MQ!
print("Hello, world!"); 8!8 yA
?> )1 ]P4
4n6EkTa
[:M:6JJ
Pike UcaLi&
#!/usr/local/bin/pike M "QT(u+
int main() &!/E&e$_
{ }:JE*D|
write("Hello, world!\n"); Wp2b*B=-
return 0; ['9awgkr/
} Py^ _::
k?(x}IZdG
yCznRd}J
PL/I 5=<
y%VF
Test: procedure options(main); @9-/p^n1
declare My_String char(20) varying initialize('Hello, world!'); 2.''Nt6|
put skip list(My_String); fL^+Qb}
end Test; >q W_%
$P<T`3Jg
dnRS$$9#
Prolog 2R}9wDP
goal -+1_ 1!
write("hello,world!"). 7G,{BBB
1Z9_sd~/6
\#1*r'V8
Python ]/byz_7]
#!/usr/local/bin/python >`\f,yql6
print "Hello, world!" ahezDDR-.i
21(8/F ~{
5R^e
REXX )ro3yq4??
say "Hello, world!" |Z\?nZ~
y"N7r1Pf
<*D{uMw
Ruby ,&+"|,m
#!/usr/bin/ruby Gyo[C98
print "Hello, world!\n" 66A}5b4)]
_<;;CI3w
|>w>}w`~
Scheme cJb.@8^J
(display "Hello, world!") 8:W,""
(newline) ;ZnSWIF2
;Y/{q B!
um/2.Sn>
sed (需要至少一行输入) $U3|.4
sed -ne '1s/.*/Hello, world!/p' E0F8FR'
P''5A6#5
:.;pRz
Smalltalk 4<`Qyul-
Transcript show: 'Hello, world!' t(<^of:
K})=&<M0
)SkJgzvC
SNOBOL bCv=Uo,+6
OUTPUT = "Hello, world!" DV={bcQ
END ].E89 _|O
jZRf{
FG-v71!h#
SQL q_0So}
create table MESSAGE (TEXT char(15)); ;3\oU$'
insert into MESSAGE (TEXT) values ('Hello, world!'); E;$;g#ksf
select TEXT from MESSAGE; +sN'Y/-
drop table MESSAGE; aT9+]
Ig
qN5 ru2
gmCW__oR
Tcl zDEX `~c
#!/usr/local/bin/tcl oJ
r&9.S
puts "Hello, world!" 0?DD!H)&w
5AX
AIP n)
{2|[7oNT6
TScript z]/;?
? "Hello, world!" j41)X'MgJ
M4%u~Z:4h+
uc0 1{t0,
Turing bfjC: "!H
put "Hello, world!" 4CUoXs'
wR7Ja
cKv
C*+gQeK
UNIX-style shell IJWUNKqo=
程序中的/bin/sh可改为您使用的shell H2f!c{t$p
=[N=mC
#!/bin/sh x,CTB
echo 'Hello, world!' 79DzrLu
S5Hb9m&&
}rWEa^
GUI =H<I` J'
:htz]
Delphi bc+~g>o
program HelloWorld; &U_YDUQ'L
uses ]lT8Z-h@
Dialogs; ^Y;}GeA,
begin 7WEh'(`
ShowMessage('Hello, World!'); kIC$ai6.
end. O\3
Lx
i~};5j(
]lX`[HX7
Nuva xz$-_NWW
<. C:*=tD1
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) %anY'GK
.> 4AIo,{(
5%qq#;[n
X.q,
Visual Basic TFfV?rBI
MsgBox "Hello, world!" cO8':P5Q
'或者 :.k1="H~@
Print "Hello, world!" {V8yJ{.G
3/aK#TjK
1*x;jO>Hk
Visual FoxPro I]4L0r-
? "Hello, world!" PRdyc+bf
65% WjO
lx'^vK% F
X11 } @)r\t4m
用一个程序 KF4D)NM|
ax.;IU
xmessage 'Hello, world!' %>z4hH,
%9q]
用C++和gtkmm 2 F
K7cDaI
v>XAzA
#include <iostream> 4# L}&
#include <gtkmm/main.h> ifXGH>C
#include <gtkmm/button.h> EZ"n3#/
#include <gtkmm/window.h> @5["L
using namespace std; 3R}O3#lj,
F@%`(/^TA
class HelloWorld : public Gtk::Window yb-1zF|
{ v)f;dq ^z-
public: Jbv[Ql#
HelloWorld(); R&-Vm3mc3
virtual ~HelloWorld(); &x":
protected: ?Z0NHy;5
Gtk::Button m_button; \80W?9qj
virtual void on_button_clicked(); r_x|2 AoO
}; RXi/&'+H
wHT]&fZ
HelloWorld::HelloWorld() : m_button("Hello, world!") {4y#+[
{ ?W3l
set_border_width(10); mTj?W$+r
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); } SNZl`>
add(m_button); xg^Z. q)d
m_button.show(); (^G@-eh
} 9hTzi+'S
f?qp*
HelloWorld::~HelloWorld() {} /<R[X>]<F
j; MQ_?"iN
void HelloWorld::on_button_clicked() L0Ycf|[s,
{ +W%3VV$
cout << "Hello, world!" << endl; *el~sor;S
} {!L25
oSl@EI
int main (int argc, char *argv[]) ;4'pucq5/
{ x+;a2yE~
Gtk::Main kit(argc, argv); m|M'vzu1
HelloWorld helloworld; \) FFV-k5
Gtk::Main::run(helloworld); D}MCVNd^
} lEYAq'=
L25v7U
{@&%Bq*&
Java xXRlQ|84
import java.awt.*; ng{"W|
import java.awt.event.*; u)4eu,MBT
mm:g9j
public class HelloFrame extends Frame ;ztt*py
{ }0oVIr
HelloFrame(String title) S]x\Asj;w
{ X{u\|e{
super(title); !qe:M]C'l
} ]zATdfa
public void paint(Graphics g) ?r'2GR2Sk4
{ h@{mcz
super.paint(g); _)U.5f<
java.awt.Insets ins = this.getInsets(); $`&zI