“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。 7XdLZ4ub
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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》。 Vk[m$
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以下是用不同语言写成的Hello World程序的几个例子: T#T!a0
Ada M,6m*
with Ada.Text_Io; use Ada.Text_Io; h4ZrD:D0\
procedure Hello is ca-|G'q
begin 7Sr7a{
Put_Line ("Hello, world!"); :)bm+xWFF
end Hello; kIM* K%L}
wz;IKdk[
Ao 1*a%-.
汇编语言 O7:JG[tR*
;Cm%<vW4!
x86 CPU,DOS,TASM y1f&+y9e
MODEL SMALL |odl~juU
IDEAL |UE&M3S
STACK 100H 1[/X$DyaK
=3Y?U*d
DATASEG Q+gQ"l,95
HW DB 'Hello, world!$' +.5 /4?
,+%$vV
.g\
CODESEG D.4=4"qMi
MOV AX, @data T+RfMEdr
MOV DS, AX {dhG SM7
MOV DX, OFFSET HW L<*wzl2Go
MOV AH, 09H $
^m_M.1
INT 21H wSnY;Z9W_
MOV AX, 4C00H &.;t dT7
INT 21H
Q]A;VNx
END PO]z'LD
WTZP}p1
#8QQZdC8`
x86 CPU,GNU/Linux,NASM D?;$:D"
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). %Gv8]Yb
;Enter this into "hello.asm" then type:
D`2Iy.|!
;"nasm -f elf hello.asm" 2VA\{M
;"ld hello.o -o hello" l+Uy
;"./hello" 7xz|u\?_2
N)WAzH
section .data ;data section declaration [0w@0?[
msg db 'Hello World!',0AH ![P1Qvp
len equ $-msg ;string length YFL9Q<
0Ou`&u
section .text ;code section declaration %70sS].@
global _start ;entry point (start of execution) ehPrxIyC
_start: mov edx,len ;string length MyXgp>?~T
mov ecx,msg ;string start Yw vXSA
mov ebx,1 ;file handle: stdout '!I^Lfz-Z
mov eax,4 ;sys_write F\yxXOI
int 80h ;kernel system call H~^am
BC =U6>`/
mov ebx,0 ;return value h S/oOeG<Y
mov eax,1 ;sys_exit %XMwjBM
int 80h ;kernel system call 3i/$YX5@
DBI[OG9
sk.<|-(o
x86 CPU,Windows,MASM32 ^F"Q~?D)
.386 : " 9F.U
.model flat,stdcall C0eP/d
option casemap:none hz\Fq1
;Include 文件定义 X>(?
include windows.inc ,A
T!:&<X
include user32.inc e
"5S;
includelib user32.lib vr+O)/P})
include kernel32.inc &`[y] E'
includelib kernel32.lib .H
{
;数据段 HS =qK
.data y w)q3zC
szCaption db 'A MessageBox!',0 mf^=tZ
szText db 'Hello,world!',0 NHG+l)y:
;代码段 wg\*FfQn
.code ?4GI19j
start: gDU~hv
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK |!NKKvf
invoke ExitProcess,NULL x2(!r3a
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> tkx1iBW=
end start .]}kOw:(#
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&rj3UF@hb
AWK :SjTkfU
BEGIN { print "Hello, world!" } ?9hw]Q6r}
uKHkC.g
;`Eie2y{M
BASIC ^_BHgbS%;
传统版BASIC(例如GWBASIC): x;ym_UZ6e
{-;lcO D
10 PRINT "Hello, world!" 9t:P1
20 END \,| Xz|?C
""Nu["|E
或在提示符输入: }GX[N\$N
o%_MTCANy
?"Hello, world!":END #
~SuL3
%"Tn=fZIF
现代版BASIC(例如Quick BASIC): +^1E0@b%
Blv!%es
Print "Hello, world!" #n&/yYl9(l
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以下的语句在Quick BASIC中同样有效: 2]W"sT[
HPJ\]HV(
? "Hello,world!" oo sbf#V
ljg2P5
$@k[Xh
BCPL Du@?j7&l=$
GET "LIBHDR" Fr/3Qp@S
^~~&[wY
LET START () BE &E|2-)
$( 5y]1v
WRITES ("Hello, world!*N") H{Tt>k
$) 2D|2/ >[
0?kaXD
pm$ZKM
Befunge X :2%U
"!dlrow olleH">v BZAeg">3
, g=w,*68vuy
^_@ {;.q?mj
U^jxKBq^
~&-8lD];LM
Brainfuck R Fgy
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< Q(@/,%EF
+++++++++++++++.>.+++.------.--------.>+.>. S;a'@5
eeIaH
>
eZDqW)x
C _hP siZY9
#include <stdio.h> 1~BDtHW7`n
m8KJ~02l#
int main(void) JNhHQvi\
{ #T\Yi|Qs#
printf("Hello, world!\n"); 9=,^^,q
return 0; b~F(2[o
} 08)X:@ w?
/Mk85C79
%7tQam
C++ ua$H"(#c
#include <iostream> zJ;K4)"j
\QF\Bh
int main() |n9~2R
{ ,(aOTFQS
std::cout << "Hello, world!" << std::endl; $*)??uU
return 0; k2>gnk0
} ]RYk Y7>`
;zy[xg.7
4%l
@
C++/CLI D&1*,`
int main() rEI]{?eoF
{ B35zmFX|}N
System::Console::WriteLine("Hello, world!"); C+{du^c$
} -fF1vJ7L
RB]K?
U3SF'r8
C# (C Sharp) >FtW~J"X
class HelloWorldApp }@IRReQ
{ iG<rB-"
public static void Main() RG(m:N
{ nnBgTtsC]
System.Console.WriteLine("Hello, world!"); tT7< V{i4
} 1FfdW>ay*
} rCcNu
k;V4%O
@g|Eb}t
COBOL nJ/ wtw
IDENTIFICATION DIVISION. 4m++>q
PROGRAM-ID. HELLO-WORLD. [BS3y`c
jF}zv
ENVIRONMENT DIVISION. KMz\h2X
YxMOr\B
DATA DIVISION. y<YVb@O.
v4L#^Jw(^p
PROCEDURE DIVISION. 2A3;#v
DISPLAY "Hello, world!". s:Us*i=H,
STOP RUN. # k+Ggw
e_J_rx
\GtZX!0
Common Lisp ')#E,Y%Hq
(format t "Hello world!~%") iKB8V<[\T
fFXG;Q8&
^RkHdA
DOS批处理 GE$spx
@echo off sg12C
echo "Hello, world!" 7BCCQsz<
Auhw(b>}TW
]B>Y
+
Eiffel jIMaPT
class HELLO_WORLD J'.:l} g!1
ssW+'GD
creation LGT\1u
make 76[aOC2Ad
feature L>{E8qv>w
make is HZ=Dd4!
local &0TOJ:RP
io:BASIC_IO CogLo&.
do ]+[ NX)=
!!io t~p9iGX<
io.put_string("%N Hello, world!") f+0dwlIlC$
end -- make wP1dPl_j:0
end -- class HELLO_WORLD P*/p x4;6
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}M
f}gCEW
Erlang Rs)tf|`/
-module(hello). ,oDZ:";
-export([hello_world/0]). WX
79V
fl~k')s
hello_world() -> io:fwrite("Hello, World!\n"). V~5vVY_HG&
))!Z2PfD
%Ua*}C
Forth D`e!CprF
." Hello, world!" CR >8SX ,
N##T1 Qm)
=KNg "|
Fortran <_MQC
WRITE(*,10) %-]j;'6}cX
10 FORMAT('Hello, World!') !'ajpK
STOP 5@j?7%_8
END @okC":Fw,
.eXIbd<C
Q"VFcp:
HTML >U"f1q*$
<HTML> .x6*9z#q
<HEAD> +n9&q#ah
<TITLE> Hello World! </TITLE> ^/R@bp#<
</HEAD> -'{ioHt&X/
<BODY> \WouTn
<p>Hello World!</p> O<f_-n@G|
</BODY> 8NeP7.U<w
</HTML> gq[}/E0e
)QaJYC^+
WKBPqfC
HQ9+ 9R>A,x(
H /j
-LW1:N
B/E1nBobC
A`#v-
INTERCAL yhQo1e>
PLEASE DO ,1 <- #13 "rc}mq
DO ,1 SUB #1 <- #238 {_3ZKD(\
DO ,1 SUB #2 <- #112 uVDB;6
DO ,1 SUB #3 <- #112 ?Pl>sCFm~
DO ,1 SUB #4 <- #0 &Z=}H0y
q
DO ,1 SUB #5 <- #64 o'myo.k{
DO ,1 SUB #6 <- #238 &[I#5bGk
DO ,1 SUB #7 <- #26 \EYhAx`2
DO ,1 SUB #8 <- #248 ~,R_
DO ,1 SUB #9 <- #168 |\?-k
DO ,1 SUB #10 <- #24 g_>)Q
DO ,1 SUB #11 <- #16 Ew4DumI
DO ,1 SUB #12 <- #158 RZ|s[bU
DO ,1 SUB #13 <- #52 @z
dmB~C
PLEASE READ OUT ,1 z2!NBOv
PLEASE GIVE UP ,a$LT
4s`*o/it
XPUH\I=
Java HtY\!_Ea
public class Hello @Z@yI2#e
{ 4x8mJ4[H^
public static void main(String[] args) D6bCC;
h=
{ 3dadeu^{A
System.out.println("Hello, world!"); a+\Gz
} J;m[1Mae&
} U <4<8'
6g akopZO
R(pvUm&L
JSP +t.T+`
EG
<% Vl^jTX5N
out.print("Hello, world!"); b^Rg_,s
%> -Rjn<bTIy
Yz-b~D/=}
XZp(Po:H
MIXAL EW2e k^
TERM EQU 19 the MIX console device number ;1{S"UY
ORIG 1000 start address ?H*_:?=6
START OUT MSG(TERM) output data at address MSG 2U~oWg2P
HLT halt execution #J2856bzS
MSG ALF "MIXAL" &e,xN;
ALF " HELL" +/Y)s5@<
ALF "O WOR" j nI)n*
ALF "LD " L>@0Nne7
END START end of the program -iH/~a
ml?+JbLg0
A*\4C3a'%
Nuva 9=3V}]^M
<..直接输出..> I|WBT
Hello, world! ,8$;|#d
iy$]9Wf6=@
<..或者..> 9SAyU%mS:
)%,bog(x
<. gN mp'Lm
// 不带换行 b.Y[:R_9&
? "Hello, world!" o`RTvGXk
/-BplU*"9
// 或者 zKiKda%)
m?<C\&)6x
// 带换行 KsUsj3J
?? 'Hello, world!' P\N`E?lJL
.> yRieGf1'SD
TC R(
_HGDqjL
OCaml yRvq3>mU
let main () = Y/@4|9!
print_endline "Hello world!";; 4|++0=#D$
5vP*oD
1Ete;r%5=
Pascal 7sLs+|<"
program Hello; Z#4? /'
begin !Rsx)
writeln('Hello, world!'); 5%4:)s{4|
end. A E7>jkHB
]MB^0:F-
$,h*xb.
Perl #~p1\['|M
#!/usr/local/bin/perl F*I{?NRN1
print "Hello, world!\n"; #;^.&2Lt
z
^a,7}4
\".3x
PkE
PHP !vett4C* K
<?php *;o=hM)Tp
print("Hello, world!"); "&C'K
?> ]@WJ&e/'@
y4shW|>5_
roRZE[ya
Pike < ^J!*>
#!/usr/local/bin/pike y f+/Kj<
a
int main() uMqo)J@s
{ 1~5={eI
write("Hello, world!\n"); tk,
HvE
return 0; //6m2a
} yY,.GzIjCj
b/S4b
B>~E6j7[Mp
PL/I x$M[/ID0
Test: procedure options(main); nGyY`wt&Rg
declare My_String char(20) varying initialize('Hello, world!'); E[_Z%zd^
put skip list(My_String); T]E$H, p
end Test; ]`:Fj|>
1S_KX.
zHu:Ec7
Prolog N 4,w
goal )EcF[aO
write("hello,world!"). %7V?7BE
y)(@
78NAcP~6c
Python EzthRe9
#!/usr/local/bin/python kuUH2:L
print "Hello, world!" hr)TC-
VSP[G ,J.
(S(=W G
REXX ExnszFX*
say "Hello, world!" rfCoi>{<
DpTQP u9
i&?~QQP`
Ruby Y3-15:-
#!/usr/bin/ruby ~[,E
i k
print "Hello, world!\n" W;0_@!?mr}
+/UInAM
Xv'64Nc!;
Scheme `d8$OC
(display "Hello, world!") I@x*>
(newline) OO\UF6MCU
@Yt[%tOF+
[;tbNVZK
sed (需要至少一行输入) [.6uw=;o
sed -ne '1s/.*/Hello, world!/p' "h)+fAT|,
XFM6.ye
Cu9,oU+N
Smalltalk ]bX.w/=
Transcript show: 'Hello, world!' O0~[]3Y[=
1_<'S34
rKR<R(=!=
SNOBOL LR`/pet
OUTPUT = "Hello, world!" EV~_-YC
END @n})oAC,
Q@l3XNH|c
"*TnkFTR
SQL ^8We}bs-c
create table MESSAGE (TEXT char(15)); ?K}/b[[0v
insert into MESSAGE (TEXT) values ('Hello, world!'); -+c_TJ.dC
select TEXT from MESSAGE; )%UO@4
drop table MESSAGE; jQ`cfE$sV
|ss_<
`bivAL
Tcl K4oLb"gB1
#!/usr/local/bin/tcl 79S=n,O
puts "Hello, world!" ]Ub?Wo7F?
qzV:N8+,`
KS%xo6k.
TScript Is%-r.i
? "Hello, world!" 3D%I=p(
E#ti
m-ZVl j
Turing fq\E$'o$
put "Hello, world!" $g#%
P^.L0T5g
G?YKm1:w
UNIX-style shell "z7.i{
程序中的/bin/sh可改为您使用的shell B&<Z#C:I
8<IOX
#!/bin/sh n?:s/6tP
echo 'Hello, world!' e'g-mRh
z`{Ld9W
@YV-8;hO
GUI 7FfzMs[\e
/z~;.jRg
Delphi }0qgvw
program HelloWorld; Q- j+#NGc
uses Jfo#IRC
Dialogs; dp-8,Seu
begin {6v+
Dz>
ShowMessage('Hello, World!'); YHg4WW$
end. WEWNFTI
XCQ=`3f
;pS
Wu9
Nuva bIwt#:v
<. i!sKL%z}
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) JAc-5e4
.> m$0T" `AP`
* UBU?
_fa2ntuS=f
Visual Basic A"i40 @+
MsgBox "Hello, world!" qKZ~)B j
'或者 =d&
Print "Hello, world!" If2f7{b
_ jF,
k>F
zTm&m#){3A
Visual FoxPro 53@*GXzE
? "Hello, world!" |*jnJWH4:
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29
')Y|$,
X11 Lk=f^qJ
]
用一个程序 E*j)gj9
n1!0KOu/N
xmessage 'Hello, world!' U(.Ln@sq
]KLjQpd
用C++和gtkmm 2 lP\7=9rh^x
c9r, <TR9
#include <iostream> qeHb0G
#include <gtkmm/main.h> `A3"*,|z
#include <gtkmm/button.h> PzNk: O
#include <gtkmm/window.h> NKh"x&R
using namespace std; E<D45C{DP
3|l+&LF!IC
class HelloWorld : public Gtk::Window T"XZ[q
{ Rw=gg>\
public: fg^$F9@
HelloWorld(); ~Wf&$p<|
virtual ~HelloWorld(); VuPa'2
protected: " :@5|4qK
Gtk::Button m_button; $yLsuqB}
virtual void on_button_clicked(); cZPv6c_w
}; DXsp 2
N'=8Dj
HelloWorld::HelloWorld() : m_button("Hello, world!") ,*wa#[
{ z3[
J>
set_border_width(10); %N=-i]+Id
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); Y Dq5%N`
add(m_button); C`%cPl
m_button.show(); m\O<Yc keA
} 6;"jq92in*
R>BnUIu
HelloWorld::~HelloWorld() {} &r;-=ASYzV
TW7jp
void HelloWorld::on_button_clicked() _>S."cm}!k
{ pmv;M`_|R
cout << "Hello, world!" << endl; iQ~;to;Y
} D/5 ah_;
.|G([O^H
int main (int argc, char *argv[]) vB
hpD
{ ~$Xz~#~
Gtk::Main kit(argc, argv); XcAx@CY9c
HelloWorld helloworld; XFUlV;ek
Gtk::Main::run(helloworld); T/X[q7O~~4
} ,Hlbl}.ls
iqRk\yq<
h2QoBGL5
Java @6~r7/WD
import java.awt.*; +Vl\lL
-
import java.awt.event.*; :&S6AP
Cd?aC
public class HelloFrame extends Frame >WVos 4
{ < HlS0J9
HelloFrame(String title) lc?9B
{ 7y""#-}V[r
super(title); N \1
EWi
} 5
<X.1T1
public void paint(Graphics g) k2(B{x}L
{ ;G|5kvE>
super.paint(g); u!S ^lV@
java.awt.Insets ins = this.getInsets(); w@ALl#z;}
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); :70[zo7n'
} VJ8cls<
public static void main(String args []) 7O',X Y
{ 3x@t7B
HelloFrame fr = new HelloFrame("Hello"); e*{'A
jNd."[IrO
fr.addWindowListener( __dSEOGoe
new WindowAdapter() 8b\XC%k
{ |=&[sC
public void windowClosing(WindowEvent e) #;4<dDVy
{ j?<>y/IR
System.exit( 0 ); ~\B1\ G
} o/??w:'
} E}LYO:
); u*u3<YQ
fr.setResizable(true); 6b`3AAGU"
fr.setSize(500, 100); ebsZ
fr.setVisible(true); olda't
} Wwo'pke
} >|Yr14?7
y:,Ro@H%
oMey^]!
Java Applet vo<'7,
Java Applet用于HTML文件。 ;:nx6wi
' b1k0 9'
HTML代码:
StZ GKY[Q
mu`:@7+Yp
<HTML> Z'=:Bo{
<HEAD> >8%<ML
<TITLE>Hello World</TITLE> t*J*?Ma
</HEAD> XLQt>y)
<BODY> ul@G{N{L
2E7vuFH4c
HelloWorld Program says: d7(g=JK<
&/wd_;d^A
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> Dfz3\|LJ
</APPLET> /<zBjvr%%
eI99itDQ
</BODY> A:Y
([
</HTML> XM?>#^nC?u
P?WS=w*O0
Java代码: .t53+<A
TQhu$z<