“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。 @n*D>g
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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》。 NP'Ke:
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以下是用不同语言写成的Hello World程序的几个例子:
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Ada {))S<_yN
with Ada.Text_Io; use Ada.Text_Io; OG7v'vmY
procedure Hello is w*%$
lhp!
begin h\*rv5\M
Put_Line ("Hello, world!"); %L>nXj
end Hello; `)M\(_
% 3-\3qx*
IC.<)I
汇编语言 &iy(oM
g{)H"
8L
x86 CPU,DOS,TASM nvo1+W(%
MODEL SMALL Ja=70ZI^6
IDEAL xWz;5=7a]
STACK 100H Cmx2/N
-u9yR"n\}
DATASEG Tv,.
HW DB 'Hello, world!$' 9$V_=Bo
9^#gVTGXv
CODESEG 0gD59N'C
MOV AX, @data K6*UFO4}i
MOV DS, AX vq:OH
H
MOV DX, OFFSET HW i2a"J&,6O
MOV AH, 09H L_1_y, 0N
INT 21H 1 lCikS^c
MOV AX, 4C00H Jo aDX ,
INT 21H |\n)<r_
END #IhLpO
qL5#.bR
;AGs1j
x86 CPU,GNU/Linux,NASM 3k*:B~1
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). :CST!+)o
;Enter this into "hello.asm" then type: C1B3VG
;"nasm -f elf hello.asm" qvU$9cTY
;"ld hello.o -o hello"
G<-9U}~76
;"./hello" yX.5Y|A<
d3=6MX[c
section .data ;data section declaration UoMWn"ZE
msg db 'Hello World!',0AH 4Re@ QOZ
len equ $-msg ;string length q\'P1~
JRjMt-7H_
section .text ;code section declaration C:GHP$/}
global _start ;entry point (start of execution) wQ=yY$VP
_start: mov edx,len ;string length ]RXtC*
mov ecx,msg ;string start ,C,e/>+My
mov ebx,1 ;file handle: stdout '=,rb
mov eax,4 ;sys_write kH8$nk eev
int 80h ;kernel system call "K+N f
vgA!?P3
mov ebx,0 ;return value fZV8o$V
mov eax,1 ;sys_exit 7|M $W(P
int 80h ;kernel system call Z:lB:U'o
AK
s39U'
)Z8"uRTb0
x86 CPU,Windows,MASM32 R(?<97
.386 [mf7>M`p]@
.model flat,stdcall
J"Y
option casemap:none H")N_BB
;Include 文件定义 /=YqjZTCq
include windows.inc B#k3"vk#
include user32.inc g\\1C2jG
includelib user32.lib '
MS!ss=r
include kernel32.inc 3Da,]w<
includelib kernel32.lib s 9|a2/{
;数据段 @Tfwh/UN
.data |
2.e0Z]k
szCaption db 'A MessageBox!',0 j`|^s}8t
szText db 'Hello,world!',0 Ld}(*-1i
;代码段 cbu nq"
.code NM1cyZ
start: C*EhexK,}
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK uO _,n
invoke ExitProcess,NULL FJd8s*
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> A|taP$%
end start {GQ
Aa
8>VI$
[Zt#
c C+
AWK >^H'ZYzw
BEGIN { print "Hello, world!" } Cwsoz
Ck3QrfM
?zhI=1ED%
BASIC <=m
30{;f
传统版BASIC(例如GWBASIC): ]D?# \|
fzRyG-cEpj
10 PRINT "Hello, world!" @!":(@3[
20 END |z#m
Iu-'o
或在提示符输入: ;h,R?mU
;-9zMbte:
?"Hello, world!":END 8!uL-_ Bn
T@Ss&eGT2
现代版BASIC(例如Quick BASIC): VA=#0w
M2;%1^
Print "Hello, world!" j(Fa=pi
L_Y9+
e
以下的语句在Quick BASIC中同样有效: )RA\kZ "
2Ft8dfdm`
? "Hello,world!" k(-Z@
CQBT::
1!>bhH}{D
BCPL 462!;/y
GET "LIBHDR" VBbUl|X\
!@^y)v
LET START () BE '0R/6Z|/Y
$( .K|P&
WRITES ("Hello, world!*N") BN\fv,
$) nW$A^
Z]x5!
:kME
Befunge Y)Znb;`?a
"!dlrow olleH">v ?jNF6z*M6
, qeQC&U
y;
^_@ fuNl4BU
P[rAJJN/E
-GDV[Bg
Brainfuck pAJ=f}",]E
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< :u>W&D
+++++++++++++++.>.+++.------.--------.>+.>. 9Eq^B9(
m\*&2Na
~:/%/-^
C o{{:|%m3Q
#include <stdio.h> [^?13xMb
U OR _M5
int main(void) !y>lOw})Q
{ E/wQ+rv
printf("Hello, world!\n"); ERp:EZ'
return 0; %r M-"6Q
} lnC!g
}yx=(+jP
/e.FY9
C++ ur/Oc24i1n
#include <iostream> H o4B
eZ@Gu
int main() tXf}jU}
{ 2j8Cv:{Nn%
std::cout << "Hello, world!" << std::endl; sTKab
:
return 0; ELN|;^-/|Q
} ^H5w41
V.K70)]
ZhGh{D[,
C++/CLI Nl~Z,hT$*
int main() U/.w;DI
{ !: m`9o8
System::Console::WriteLine("Hello, world!"); :0M'=~[
} " 2ZI oa!^
u{g]gA8s
?JuX~{{.L
C# (C Sharp) ~8jThi
U
class HelloWorldApp KH>Sc3p
{ `xISkW4 %
public static void Main() 2-8YSHlh
{ !(W[!%
System.Console.WriteLine("Hello, world!"); }Q`/K;yq
} pGY [f@_x-
} v$t{o{3
b%3Q$wIJ6
m5e\rMN~>\
COBOL -,R0IGS
IDENTIFICATION DIVISION. nHI(V-E2:H
PROGRAM-ID. HELLO-WORLD. `[X6#`<
f|X[gL,B
ENVIRONMENT DIVISION.
P7}t lHX
lP}o[Rd
DATA DIVISION. 8BHL
nURvy}<r
PROCEDURE DIVISION. y!S^xS
DISPLAY "Hello, world!". VKT@2HjNT`
STOP RUN. V)2"l"Kt
+7Sf8tg\
&\&'L|0F
Common Lisp GMEw
(format t "Hello world!~%") `ifb<T
:_MP'0QP
?O!]8k`1$
DOS批处理 I_:t}3s
@echo off uPFRh~ (b
echo "Hello, world!" Xf6fH O
La\Q'0
JR/W9i
Eiffel kXigX-
class HELLO_WORLD kclp}
XlRw Z/Wc
creation W7%p^;ZQ$
make zs4>/9O
feature P`}$-#D F
make is Pg7>ce
local e%pu.q\gK
io:BASIC_IO %'$f ?y
do )i&%cyZw
!!io 7Aqn[1{_O
io.put_string("%N Hello, world!") ,r@xPZPz:e
end -- make NI^{$QMj
end -- class HELLO_WORLD b([:,T7
]F*|U`
v,n);
Erlang S<V-ZV&_:U
-module(hello). <BZ_ (H
-export([hello_world/0]). 1d`cTaQ-
K-Re"zsz
hello_world() -> io:fwrite("Hello, World!\n"). 8098y,mQe
bi+9R-=&
KCE=|*6::|
Forth 5n:nZ_D
." Hello, world!" CR !zU/Hq{wcK
N A8
sN
_jW>dU^B
Fortran 9p5= _
WRITE(*,10) yGRR8F5>(
10 FORMAT('Hello, World!') M/*Bh,M`
STOP
*K`x;r
END (m6EQoW^s+
^#2xQ5h
Umij!=GPG^
HTML RZ*<n$#6
<HTML> # ?_#!T|
<HEAD> nQ|GqU\oA
<TITLE> Hello World! </TITLE> $Tfm/ =e
</HEAD> >Dxe>Q'df
<BODY> 87pnSj/X"
<p>Hello World!</p> 'gYg~=
</BODY> z23#G>I&
</HTML> 46ILs1T6
;"D~W#0-v
>8%M*-=p
HQ9+ Ha?G=X
H lHcA j{6
C(}^fJ6r
JT}.F!q6E
INTERCAL xg?auje
PLEASE DO ,1 <- #13 }*h47t}
DO ,1 SUB #1 <- #238 V- /YNRV
DO ,1 SUB #2 <- #112 kY=rz&?U
DO ,1 SUB #3 <- #112 }4Zkf<#7$
DO ,1 SUB #4 <- #0 f`,-b
DO ,1 SUB #5 <- #64 5lGQ#r
DO ,1 SUB #6 <- #238 7"#f!.E
DO ,1 SUB #7 <- #26 d)\2U{
DO ,1 SUB #8 <- #248 |88CBiu}
DO ,1 SUB #9 <- #168 uj)yk*
DO ,1 SUB #10 <- #24 dbCNhbN(
DO ,1 SUB #11 <- #16 Oc#>QZ3
DO ,1 SUB #12 <- #158 ^}hJL7O'
DO ,1 SUB #13 <- #52 z4bN)W )p
PLEASE READ OUT ,1 ![
a
PLEASE GIVE UP dIvy!d2l
RJ@\W=aZ
JwB"\&'1ZS
Java cu)U7
public class Hello -A}zJBcR
{ "w9`cz9a~J
public static void main(String[] args) ^,`M0g\$
{ S#mK
Pi+3
System.out.println("Hello, world!");
f\ 'T_
} i@XB&;*c\
} P<vo;96JT
##v`(#fu
7LfcF
JSP iKhH ^V%j
<% *Z; r
B
out.print("Hello, world!"); HAd%k$Xu{
%> `UQEXoB)
XC2FF&B&
,m:L2 -J@
MIXAL Ch t%uzb,
TERM EQU 19 the MIX console device number b4)k &*dfR
ORIG 1000 start address O:._W<
START OUT MSG(TERM) output data at address MSG 2$tQ @r
HLT halt execution yyjw?#\8
MSG ALF "MIXAL" |kseKZ3
ALF " HELL" *,&S' ,S-
ALF "O WOR" 9n"V\e_R
ALF "LD " Kr]z]4.d@
END START end of the program kutJd{68
/kRAt^4!
^&NN]?
Nuva e8-ehs>
<..直接输出..> e}e6r3faz
Hello, world! {yS;NU`2
ws[/
<..或者..> 7E\g
&R.
T)~!mifX
<. -=a[J;'q
// 不带换行 \E77SO,$
? "Hello, world!" 5B?i(2
Im+7<3Z
// 或者 !b63ik15O~
WL1\y|
// 带换行 $ser+Jt=
?? 'Hello, world!' ceG&,a$\
.> A?r^V2+j
'g hys1H
VX!hv`E
OCaml :BD>yOlG
let main () = /tZ0
|B(
print_endline "Hello world!";; -?z\5z
]Jn2Ra"j
JD*8@N
Pascal N2Ssf$
program Hello; >Nh`rkR2[
begin = ^s$
<
writeln('Hello, world!'); #w|5jN?
end. "mA1H]r3
+>}o;`hPe
Oyan9~
Perl |IN[uQ
#!/usr/local/bin/perl 1'fb
@vO
print "Hello, world!\n"; y42#n
`[Sl1saZ$S
$@.jZ_G
PHP i?-Y
<?php =?/&u<
print("Hello, world!"); ISBF\ wQY
?> (:7a&2/M
]]PE#DDg
\z:<DsQ&
Pike CN\=9Rvs
#!/usr/local/bin/pike w.^yP7:
int main() l'uOORI
{ $8g42LR'
write("Hello, world!\n"); p9iu:MucD<
return 0; V;;#/$oU:4
} N}mh}
~},W8\C>
Z0\Iyc G
PL/I t^U^Tr
Test: procedure options(main); SiTeB)/
declare My_String char(20) varying initialize('Hello, world!'); M1{(OY(G
put skip list(My_String); s[X
B#)H4
end Test; x.UaQ |F
#xp(B5
~OCZz$qA
Prolog ;==j|/ERe
goal JDlBVZ!
write("hello,world!"). ) rpq+~b
3{RL \gh$"
;s_"{f`Y6
Python !8/gL
#!/usr/local/bin/python 6$RpV'xz
print "Hello, world!" &F6C
8,*3zVk-
Q0>q:aj\
REXX 'RLOV
say "Hello, world!" CXAVGO'xw
|}Ph"g2D,
&,MFB
Ruby m\-PU z&C
#!/usr/bin/ruby s)w9%
print "Hello, world!\n" X<euD9?
mb{q(WEPP
YgimJsm
Scheme ~ffwLgu!
(display "Hello, world!") Mudrg[@`
(newline) JA6";fl;
:<utq|#s
IU9,
(E
sed (需要至少一行输入) "+h/-2rA
sed -ne '1s/.*/Hello, world!/p' <\aU"_D
#PFO]j!_b
D^?_"wjW
Smalltalk MLS;SCl
Transcript show: 'Hello, world!' u)~s4tP4
9rcI+q=E
Y[G9Vok
VX
SNOBOL 6fGK(r
OUTPUT = "Hello, world!" (U9a@1
END D=&K&6rr
Y/lN@
c-*2dV[@
SQL 6+PGwCS
create table MESSAGE (TEXT char(15)); W[|[;{
insert into MESSAGE (TEXT) values ('Hello, world!'); 7' eh)[T
select TEXT from MESSAGE; u-.L^!k
drop table MESSAGE; '[fZt#
hQ';{5IKvC
$E.XOpl&I
Tcl SFpQ#
#!/usr/local/bin/tcl ~:Mm<*lL%
puts "Hello, world!" I7G,`h+H
xZ+]QDKC
v3-?CQb(
TScript I%xn,u
? "Hello, world!" Xw^X&Pp
"&-C$J5
Id
uvv.WbZ
Turing ,Rz}=j
put "Hello, world!" .'lN4x
3dm'xetM
Ef,Cd[]b
UNIX-style shell >FF1)~
程序中的/bin/sh可改为您使用的shell L_?$ayZ;
a5V=!OoMk
#!/bin/sh o5 WW{)Q
echo 'Hello, world!' TSQhX~RN
Z*eoA
zYr z08PJ
GUI UH20n{_:
|M E{gy`5
Delphi w1i?#!|
program HelloWorld; *P xf#X
uses xa#gWIP*
Dialogs; N-%#\rPq.
begin Pux)>q] C
ShowMessage('Hello, World!'); Le&;g4%
end. T 2|:nC)@
ML=z<u+
^:z7E1~
Nuva f3&/r
<. |!Ists
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) X9~p4ys9{
.> {^m5#f 0"
oMc1:=EG
C3.=GRg~l
Visual Basic |Fp'/~|w2d
MsgBox "Hello, world!" wd+O5Lr.R
'或者 .bfST.OA
Print "Hello, world!" H,|YLKg-|
)
,Npv3(
?Aw3lH#:
Visual FoxPro Qlh?iA
? "Hello, world!" $G3@< BIN
^PQM;"
os**hFPk;1
X11 O`(U/?
用一个程序 o#}mkE87
\ V?I+Gc
xmessage 'Hello, world!' }Vl^EAR
V6*?$o
用C++和gtkmm 2 cL7C2wB`
gjZx8oIoP
#include <iostream> u+z~
#include <gtkmm/main.h> =|V"#3$f
#include <gtkmm/button.h> e &Rb
#include <gtkmm/window.h> vgAFuQi(
using namespace std; 5/(sjMB
a_%>CD${t
class HelloWorld : public Gtk::Window Q>%E`h
{ f{_)rsqf
public: tN!Bvj:C[M
HelloWorld(); 3:AU:
virtual ~HelloWorld(); #90c$ dc
protected: f?-J#x)
Gtk::Button m_button; VIg\]%qse
virtual void on_button_clicked(); E9R]sXf8
}; L*^
V5^-
!gJzg*{u@
HelloWorld::HelloWorld() : m_button("Hello, world!") GNZ#q)qT
{ {(0Id !
set_border_width(10); fTgbF{?xh
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); }4KW@L[g
add(m_button); 9b%j.Q-W
m_button.show(); mu>] 9ZW
} A:)sg!Lt
Z@oKz:U
HelloWorld::~HelloWorld() {} BA*&N>a
;qb Dbg
void HelloWorld::on_button_clicked() O{ BW;Deo
{ %rXexy!V
cout << "Hello, world!" << endl; ArX]L$D
} yxY
h?ka
'M-)Os"
int main (int argc, char *argv[]) )Y[/!
{ 0%H24N
9.
Gtk::Main kit(argc, argv); }VZM,.w
HelloWorld helloworld; )f[C[Rd
Gtk::Main::run(helloworld);
%mL5+d-oP
} ;-Ado8
`u=oeM:
5"uNj<.V
Java y($EK(cb
import java.awt.*; 3P`WPph
import java.awt.event.*; 9tAE#A
B!iFmkCy
public class HelloFrame extends Frame FE}s#n_Pd
{ kyu2)L2u
HelloFrame(String title) !mae^A1
{ B,MQ.|s[
super(title); D}Au6
} QH:>jmC{1h
public void paint(Graphics g) cqjl5UB
{ ``6{T1fQS
super.paint(g); 4UVW#Rw{
java.awt.Insets ins = this.getInsets(); 1VGpq-4*j
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); SdSgn |S
} bq: [Nj
public static void main(String args []) n{$}#NdV
{ TH>,v
HelloFrame fr = new HelloFrame("Hello"); =-m(\}
0}D-KvjyP
fr.addWindowListener( HoL~j( {
new WindowAdapter() y:C)%cv}*
{ L9$&-A9ix
public void windowClosing(WindowEvent e) T?#s'd
{ nfa_8
System.exit( 0 ); 8XlU%a6x
} zF?31\GOX
} gY%OhYtF2
); ~;!BDLMC6
fr.setResizable(true); V07VwVD
fr.setSize(500, 100); l[Tt[n
fr.setVisible(true); /Bh>
} 6UO$z- e
} OelU
D/[$
G"{4'LlA
\Vz,wy%-
Java Applet %6N)G!P
Java Applet用于HTML文件。 S7Znz@
blUY.{NN3
HTML代码: l\_x(BH
m^'~&!ba
<HTML> :q(D(mK
<HEAD> B_!wutV@
<TITLE>Hello World</TITLE> 'V1!&Q