“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。 +4?Lwp'q
LDlYLsF9
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》。 Vq'7gJj'
t1']q"
以下是用不同语言写成的Hello World程序的几个例子: uavATnGO{B
Ada AFAg3/
with Ada.Text_Io; use Ada.Text_Io; 4=yzf
procedure Hello is .|,LBc!
begin >tM4|w|
Put_Line ("Hello, world!"); @;/Pl>$|'G
end Hello; ?H=YJK$k
sVFO&|L
P#O"{+`
汇编语言 A!lZyG!3
K.
;ev
x86 CPU,DOS,TASM t#NPbLZ
MODEL SMALL FZ-Wgh
0z
IDEAL (!}N&!t
STACK 100H G+
/Q!ic
,>j3zjf^
DATASEG 7'\.QJ!<
HW DB 'Hello, world!$' 'Ea3(OsuXn
fCY|iO0.t
CODESEG #w{`6}p
MOV AX, @data I{IB>j}8
MOV DS, AX %K Q1{"
MOV DX, OFFSET HW ,P~e)<.
MOV AH, 09H aq?bI:>8
INT 21H mA(kq
MOV AX, 4C00H fQoAdw
INT 21H w~]2c{\Qz
END u3h(EAH>
o-<i+ To%
qYoW8e
x86 CPU,GNU/Linux,NASM 0LQRQuh1
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ;j0.#P:a
;Enter this into "hello.asm" then type:
qCI&H7u@
;"nasm -f elf hello.asm" ?'V78N sA
;"ld hello.o -o hello" [<B,6nAl
;"./hello" wX] _Abk
AH,?B*zGj
section .data ;data section declaration +wQ5m8E
msg db 'Hello World!',0AH i@/% E~ W
len equ $-msg ;string length nDkG}JkB!
\%r#>8c8
section .text ;code section declaration /M5.Z~|/
global _start ;entry point (start of execution) L91(|gQP
_start: mov edx,len ;string length 'M%iS4b{IM
mov ecx,msg ;string start Gb^63.}
mov ebx,1 ;file handle: stdout i}T*| P
mov eax,4 ;sys_write XU'(^Y8Imz
int 80h ;kernel system call l&H-<Z.8m
hTBJ\1
-
mov ebx,0 ;return value }%KQrlbHJl
mov eax,1 ;sys_exit l<_v3/3
int 80h ;kernel system call !MSa -
6F^/k,(k4
C5=^cH8
x86 CPU,Windows,MASM32 +aL6$
.386 8z93ETv7`
.model flat,stdcall -t_&H\_T
option casemap:none Z{3=.z{&^=
;Include 文件定义 ejg!1*H@n
include windows.inc xEG:KSH
include user32.inc v0'z''KM!
includelib user32.lib ,5 ,r.
include kernel32.inc [?z;'O}y
includelib kernel32.lib T#E{d
;数据段 K81FKV.
.data n_sV>$f-u
szCaption db 'A MessageBox!',0 drCL7.j#L
szText db 'Hello,world!',0 2Jo|P A`9
;代码段 (ht"wY#T<(
.code hQ3@Cf W
start: $jk4H+H-
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK P'$2%P$8:~
invoke ExitProcess,NULL %4VM"C4[
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ?(s9dS,7wZ
end start Jn(|.eT|
O-AC$C[d
El}~3|a?
AWK ]_ LAy
BEGIN { print "Hello, world!" } h<IAHCz;(
i{g~u<DH)Q
yJx,4be
BASIC %5ov!nm7
传统版BASIC(例如GWBASIC): } %3;j5 ;6
,9OER!$y
10 PRINT "Hello, world!" N#J8 4i;ry
20 END l2#~
ml~)7J
或在提示符输入: p+I`xyk
m[ S1
?"Hello, world!":END *<9M|H~
mv<cyWp
现代版BASIC(例如Quick BASIC): -6q7ze{@
8pmWw?
Print "Hello, world!" D<Z\6)|%I
RG1#\d-fE
以下的语句在Quick BASIC中同样有效: 'fb&3
zPvTRW~H\
? "Hello,world!" kaZcYuT.9
'mU\X!-
4<
+C$wkx]
BCPL * se),CP!s
GET "LIBHDR" q!d7Ms{q
Swv
=gu
LET START () BE >wV2` 6
$( O|;|7fCB\
WRITES ("Hello, world!*N") .v) A|{:2
$) $nthMx$
N[=R$1\Z
q_6<}2m,U
Befunge Mc|UD*Z
"!dlrow olleH">v )=h+5Z>E1
, (Sj?BZjC
^_@ -A8CW9|mk
P= 26! b
F-?s8RD
Brainfuck +_fxV|}P
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< Daf;;
w
+++++++++++++++.>.+++.------.--------.>+.>. ~
Q;qRx
,|R\ Z,s
^^*dHWHn<
C 1`&"U[{
#include <stdio.h> ]\%u9,b%!
s4\_%je<v
int main(void) {Ve_u
{ f,Dj@?3+
printf("Hello, world!\n"); #F >R5 D
return 0; mvW,nM1Y
} ,
rc
%#eF
"M:0lUy
IsiCHtY9
C++ X[iQ%Y$/n
#include <iostream> .{#J2}+[_}
20RI S j
int main() RC]-9gd3Q
{
Hn,;G`{
std::cout << "Hello, world!" << std::endl; +,ZQ(
ZW
return 0; z)y{(gR
} (ft$ R?
[,ns/*f3R
w>gB&59r
C++/CLI ~@Eu4ip)F
int main() f>_' ]eM%
{ Y]{~ogsn$:
System::Console::WriteLine("Hello, world!"); |"EQyV
} 4] I7t
`GT{=XJfY
L(qQ,1VY
C# (C Sharp) r5aOQ
class HelloWorldApp *U^7MU0
{ Wi{ jC?2Q
public static void Main() EJ`"npU
{ iwnFCZVS
System.Console.WriteLine("Hello, world!"); LYyOcb[x
} &,~Oi(SX5
} aRF}FE,u
G$$y\e$
4brKAqg.
COBOL dJD8c2G
IDENTIFICATION DIVISION. 4XXuj
PROGRAM-ID. HELLO-WORLD. loFApBD=$^
sDnXgCcS!
ENVIRONMENT DIVISION. a@V`EEZ
$UGX vCR
DATA DIVISION. ?B~S4:9
o\;cXuh
PROCEDURE DIVISION. [GqQ6\
DISPLAY "Hello, world!". YRm6~c
STOP RUN. y)e8pPDG
ii:E>O(0B
#?EmC]N7
Common Lisp m]#oZVngy
(format t "Hello world!~%") U^.kp#x#
B6#^a
rsgTd\b
DOS批处理 $(8CU$gi=
@echo off W2F *+M
echo "Hello, world!" )D"E]
85GU~.
1Vy8TV3D
Eiffel 84}Pu%
class HELLO_WORLD 7)#8p@Q
Qaeg3f3F3
creation #%$U-ti
make u?B9zt%$-m
feature _^ny(zy(
make is oW
\k%Vj
local \7U'p:h=U
io:BASIC_IO /\0g)B;]
do |s$w
i>7l
!!io |b'}.(/3i
io.put_string("%N Hello, world!") +9!=pRq
end -- make O~
]3 .b
end -- class HELLO_WORLD *H({q`j33k
!xxdC
C!z7sOu
Erlang O=E?m=FR"
-module(hello). VY|'7in"M
-export([hello_world/0]). D@
4sq^|2
EYXHxo
hello_world() -> io:fwrite("Hello, World!\n"). s5cY>
bD ADFitSo
RR9G$}WS(
Forth Mj5&vs~n;
." Hello, world!" CR ;:A/WU.^
i_<GSUTTr/
*mtS\J
Fortran W|-<ekH_u
WRITE(*,10) p%ZOLoc)Y
10 FORMAT('Hello, World!') RHv|ijYy
STOP DT#F?@LG(
END m:x<maP#E
mP[Z lS~"
/JbO $A
HTML q)rxv7Iu\
<HTML> ]7DS>%mY(
<HEAD> Yx"un4
<TITLE> Hello World! </TITLE> ]b'"l
</HEAD> Bb9/nsbE
<BODY> #L`'<ge'g*
<p>Hello World!</p> P5Is#7udN8
</BODY> m4~>n(
</HTML> u #Y#,:{
dk>qTY+j5
`),ACkU>U
HQ9+ _oAWj]~rO
H %D6HY^]ayw
Bh
,GQHJ
X-k$6}D
INTERCAL EaN1xb(DYa
PLEASE DO ,1 <- #13 ag{cm'.
DO ,1 SUB #1 <- #238 caD)'FSES
DO ,1 SUB #2 <- #112 +Jw+rjnP
DO ,1 SUB #3 <- #112 Tx:S{n7&
DO ,1 SUB #4 <- #0 ]gjB%R[.m
DO ,1 SUB #5 <- #64 EAZLo;
DO ,1 SUB #6 <- #238 Z%$tV3a?
DO ,1 SUB #7 <- #26 7;r Jr&.)
DO ,1 SUB #8 <- #248 X]+z:!
DO ,1 SUB #9 <- #168 \9N
)71n(
DO ,1 SUB #10 <- #24 ZWXA%u7V
DO ,1 SUB #11 <- #16 V_"UiN"o
DO ,1 SUB #12 <- #158 !Y^3% B%
DO ,1 SUB #13 <- #52 &MJcLM]
PLEASE READ OUT ,1 >eM>Y@8=
PLEASE GIVE UP 4#Cm5xAt6
4"~F
Zg=jDPt}
Java HIsB)W&%@
public class Hello *iiyU}x
{ %@'[g]hk
public static void main(String[] args) HA`qU
{ _>RTefL5
System.out.println("Hello, world!"); 4RL0@)0F
} |] cFsB#G
} D*}_L
7
V3r!y
lOEB ,/P
JSP w itx_r
<% Y>J u$i
out.print("Hello, world!"); ~sMEfY,p
%> ^t}8E2mq
S'}pUGDO
RH~I/4e
MIXAL H7CWAQPfj
TERM EQU 19 the MIX console device number e+O502]
ORIG 1000 start address :R1F\FT*
START OUT MSG(TERM) output data at address MSG J. $U_k
HLT halt execution 2F#DJN#
MSG ALF "MIXAL"
1
.Nfl@]
ALF " HELL" >SHP,><H/
ALF "O WOR" X[J?
ALF "LD " vM?jm!nd
END START end of the program "1z#6vw5a
lQKq{WLFx.
WY$c^av<
Nuva vocWV/
<..直接输出..> i{biQ|,.sL
Hello, world! 9CPr/q9'
&`I 7aP|
<..或者..> <~}NxY\5
R
"qt}4m
<. H6Q!~o\"H
// 不带换行 K+3+?oYKH
? "Hello, world!" }e]tn)
|32uC3?o
// 或者 2g
HRfTF
-(JBgM"
// 带换行 g27)$0&0
?? 'Hello, world!' RYZM_@5$t
.> s_
%LU:WC
a_(T9pr
iyTKy+3A
OCaml 'cPE7uNT
let main () = !EOYqD
print_endline "Hello world!";; JmF:8Q3H
E-v^eMWX
IN?6~O
p
Pascal ~nRbb;M
program Hello; i;fU],aK!
begin nO
`R++
writeln('Hello, world!'); SQ-CdpT<
end. :0'vz M
#tN!^LLi
8;$zD]{D1
Perl B\\M%!a>
#!/usr/local/bin/perl O&evv8 6L
print "Hello, world!\n"; {4>N2mP{M
COH9E\ZGF
o?/fObV@(
PHP zbAyYMtEk
<?php "R^0eNv$
print("Hello, world!"); v,Uu)Z
?> UTVqoCHA
8A: =#P^O\
z<OfSS_]R
Pike GQ6~Si2
#!/usr/local/bin/pike #'8'5b
int main() ,m[#<}xXA
{ j7yUya&
write("Hello, world!\n"); Y3g<%6
return 0; TEQs9-Uy
} ?fX`z(Z
qnJs,"sn
_18Aek
PL/I Odr<fvV,>
Test: procedure options(main); ,SH^L|I
declare My_String char(20) varying initialize('Hello, world!'); p9[gG\
put skip list(My_String); !@[@&.
end Test; e'2w-^7
_Lgi5B%
( "wmc"qH
Prolog ~F[JupU
goal K>_~|ZN1C8
write("hello,world!"). |Ge!;v
?*:BgaR_
+6s6QeNS8
Python ]23+ d/
#!/usr/local/bin/python ZVDi;
print "Hello, world!" 9`cj9zz7
C:p`
6ag0c&k
REXX ~\u~>mtchu
say "Hello, world!" 9#1Jie$
G8lTIs4u;
=8AL>:_
Ruby <])kO`+G
#!/usr/bin/ruby z_%}F':
print "Hello, world!\n" /mwsF]Y
)j}v3@EM5
-IS$1
Scheme
!SThK8j$7
(display "Hello, world!") $|VD+[jSV
(newline) '5\?l:z
eA-$TSWh
o,!W,sx_
sed (需要至少一行输入) En ]"^*
sed -ne '1s/.*/Hello, world!/p' j`QXl
Sr+ &
%Mf3OtPiJW
Smalltalk TNlS2b1
Transcript show: 'Hello, world!' ~|&To>
]uXmug
@5{h+ ^
SNOBOL D
4<,YBvV
OUTPUT = "Hello, world!" 9s#*~[E*
END &/$3>MD2`
/;WFRp.
EO\- J-nM
SQL wLKC6@
W
create table MESSAGE (TEXT char(15)); 3 +8{Y
insert into MESSAGE (TEXT) values ('Hello, world!'); +<'>~lDg
select TEXT from MESSAGE; \Wb3JQ)
drop table MESSAGE; OQ+kOE&
lh-zE5;
nQ;M@k&9eV
Tcl ZmS
]4WM<
#!/usr/local/bin/tcl oiItQ4{<
puts "Hello, world!" PDb7 h
8xx2+
p{;FO?
TScript &"=<w
? "Hello, world!" &?^"m\K4J*
M<ba+Qn$
?GGBDql
Turing .=@CF8ArG
put "Hello, world!" &Y-jK <
e|4U2\&3y
i}~U/.P
UNIX-style shell \N.Bx
程序中的/bin/sh可改为您使用的shell v
K!vA-7
"cGjHy\j`
#!/bin/sh m 3Do+!M[
echo 'Hello, world!' ese?;1r
y|(?>\jBl
z`!f'I--!
GUI 0>yuB gh
89ab?H}/
Delphi G3gEL)b*
program HelloWorld; d+]/0J!c
uses _FzAf5DO
Dialogs; \1oN't.
begin ^`f qK4<
ShowMessage('Hello, World!'); ~\u?Nf~L
end. CUx[LZR7m
-|GX]jx(Y
m5lTf
Nuva P"r7m
<. AizLzR$OG
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) ADB,gap
.> v|:TYpku3
nw=:+?
ZX0!BS
Visual Basic du&9mOrr
MsgBox "Hello, world!" ?;DzWCL~9
'或者 hz rS_v
Print "Hello, world!" l:j>d^V*&x
B1 xlWdm
?'^yw C`
Visual FoxPro U\6Ee-1#_
? "Hello, world!" h-5] nL3
`A$zLqz)Vm
T<U_Iq
X11 2Jqr"|sw
用一个程序 h 2C9p2.
>Slu?{l'
xmessage 'Hello, world!' YT<(2u#Ng
E]ZIm
用C++和gtkmm 2 [ip}f4K
?e[]UO
#include <iostream> J:0`*7
#include <gtkmm/main.h> U8 n=Ro
#include <gtkmm/button.h> Ns.{$'ll
#include <gtkmm/window.h> }kMKA.O"
using namespace std; 0f"la=6
>(a[b@[K
class HelloWorld : public Gtk::Window 1Wz5Iv#Ez
{ 9KMtPBZ
public: dwVo"_Yr
HelloWorld(); |?ma?
virtual ~HelloWorld(); +g%Ah
protected: F`57;)F
Gtk::Button m_button; I GB)
virtual void on_button_clicked(); k];fQ7}m<0
}; (ljoD[kZ
e4-7&8N+
HelloWorld::HelloWorld() : m_button("Hello, world!") @"0n8y
{ A&:~dZ:%w
set_border_width(10); V0y_c^x
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); %
r0AhWv
add(m_button); #w;%{C[D
m_button.show(); fU'[lZ
} B)s%B'
:{~TG]4M
HelloWorld::~HelloWorld() {} <ugy-vSv
9 tIE+RD
void HelloWorld::on_button_clicked() j_}f6d/h
{
7?2<W-n
cout << "Hello, world!" << endl; d2*uY.,
} >C/O >g
8v\^,'@
int main (int argc, char *argv[]) /qweozW_+
{ ^'$P[
Gtk::Main kit(argc, argv); |/;X-+f8
HelloWorld helloworld; "PC9[i
Gtk::Main::run(helloworld); k9iB-=X?4s
} ]SNcL[U
U46Z~B
-qJO6OM
Java Il$Jj-)
import java.awt.*; 8Oo16LPD
import java.awt.event.*; ^q/_D%]C
*w6(nG'M{
public class HelloFrame extends Frame _[S<Cb*1
{ AI2@VvB
HelloFrame(String title) Kl w9
{ -Ps kUl'
super(title); Og(|bs!6
} U$j?2|v-x
public void paint(Graphics g) B#[.c$
{ BS+=*3J
super.paint(g); "ac$S9@~
java.awt.Insets ins = this.getInsets(); $mF9os-
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); f9La79v
} /xkF9
public static void main(String args [])
@xN)mi
{ $WG<
HelloFrame fr = new HelloFrame("Hello"); 8o!LgT5
"%K[kA6
fr.addWindowListener( FuFA/R=x/
new WindowAdapter() 9v(k<('_
{ 01vKx)f
public void windowClosing(WindowEvent e) 4!DXj0^
{ Yk
yB
System.exit( 0 ); 7/6%92T/B
} 'SnB7Y
} p=]z`t
); swG!O}29OX
fr.setResizable(true); }Z8DVTpX}
fr.setSize(500, 100); z#\YA]1
fr.setVisible(true); ]xN)>A2
} GaLQ/V2R
} I'%ASZ
9M1 UkS$`@
Y%@a~|
Java Applet vABUUAo!Jr
Java Applet用于HTML文件。 zfm#yDf
&``nYI g/
HTML代码: T#-U\C~o
E<L6/rG
<HTML> &