“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。 dyu~T{
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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》。 T\2cAW5
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以下是用不同语言写成的Hello World程序的几个例子: Na[bCt
Ada "esV#%:#J
with Ada.Text_Io; use Ada.Text_Io; iUSs) []H>
procedure Hello is *UEo&B2+
begin <v0 d8
Put_Line ("Hello, world!"); :a`l_RMU
end Hello; YMm Fpy
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z4}:9
q?\3m3GM
汇编语言 vbh\uv&
/A{znE
x86 CPU,DOS,TASM bC"#.e
MODEL SMALL u QCQ$
IDEAL ;:'A{&0N
STACK 100H $L;7SY?
IWKQU/l!
DATASEG 9I.="b=J)
HW DB 'Hello, world!$' {OB\~$TH
[?]s((A~B
CODESEG _L&C4 <e'
MOV AX, @data Q2iu}~
MOV DS, AX Rrk3EL
MOV DX, OFFSET HW -S9$C*t
MOV AH, 09H xNl_Q8Z?R^
INT 21H D(L%fK` +
MOV AX, 4C00H %hOe `2#$
INT 21H &{l?j>|TM
END My=p>{s
_%"/I96'
l$.C40v
x86 CPU,GNU/Linux,NASM .PxtcC.K
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). @YV-8;hO
;Enter this into "hello.asm" then type: 7FfzMs[\e
;"nasm -f elf hello.asm" ]LNP"vi;
;"ld hello.o -o hello" Tpkm\_
;"./hello" =[vT=sHz7
Q- j+#NGc
section .data ;data section declaration -,}f6*
msg db 'Hello World!',0AH u'P@3'P
len equ $-msg ;string length +FyG{1?<
R%54!f0
%
section .text ;code section declaration Hz+edMUL
global _start ;entry point (start of execution) H@MUzV
_start: mov edx,len ;string length oGXT,38*
mov ecx,msg ;string start s6!aGZ
mov ebx,1 ;file handle: stdout r@k&1*&
mov eax,4 ;sys_write hb[K.`g
int 80h ;kernel system call !=eui$]
;-U:t4
mov ebx,0 ;return value +*F ;l\R
mov eax,1 ;sys_exit FRX'"gIR0
int 80h ;kernel system call x!gu&AA<*
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'6[0NuB
x86 CPU,Windows,MASM32 :Q!U;33aG
.386 >a@-OJ.yOk
.model flat,stdcall m$0T" `AP`
option casemap:none 'TezUBRAz
;Include 文件定义 Q+Jzab
include windows.inc |Y2u=B
include user32.inc \*a7DuVw
includelib user32.lib @k ~Xem%<
include kernel32.inc
:\gdQG
includelib kernel32.lib T[&1cth
;数据段 57rc|]C
.data JKXs/r;:
szCaption db 'A MessageBox!',0 \JN?3}_J
szText db 'Hello,world!',0 ,Cde5A{K
;代码段 _q+H>1.&9
.code ~B|K]&/]
start: m03;'Nj'7#
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK AfFFu\
invoke ExitProcess,NULL _Su$oOy(Ea
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> D+#QQH
end start #k5Nnv#(J
1kvBQ1+
O-5H7Kd-
AWK [y64%|m
BEGIN { print "Hello, world!" } d#Ql>PrY
,7z.%g3+z
bp;b;f>
BASIC PzNk: O
传统版BASIC(例如GWBASIC): NKh"x&R
E<D45C{DP
10 PRINT "Hello, world!" Pr<.ld\
20 END .$L'Jt2X
h@@2vs2
或在提示符输入: D3|y|Dr
d1vC-n
N
?"Hello, world!":END j^mAJ5
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现代版BASIC(例如Quick BASIC): L+(5`Y
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Print "Hello, world!" DXsp 2
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以下的语句在Quick BASIC中同样有效: o-yZ$+V
#-Ehg4W
? "Hello,world!" 3g^_Fq'
m fg{% .1
tNG0ft%a
BCPL rAM{<
GET "LIBHDR" Nu<M~/
r`HtN{6r
LET START () BE ezgP\ct
$( {D 9m//x
WRITES ("Hello, world!*N") e4j:IK>
$) 7GB>m}7
-5\hZ!!J2
u
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Befunge _.KKh62CN
"!dlrow olleH">v `XE8[XY
, V80g+)|
^_@ :Bz*vH
M._9/
*C U
M]vcW
Brainfuck )C|[j@MD
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 3#!}W#xv
+++++++++++++++.>.+++.------.--------.>+.>. PsjSL8]
\U\ W Q
T/X[q7O~~4
C iLIH |P%
#include <stdio.h> JS1$l+1
U\*}}
int main(void) ,73J#
{ pIXbr($
printf("Hello, world!\n"); /2Y t\=S=
return 0; :&S6AP
} h;u8{t"
{r yv7G
\L($;8`\
C++ ?h2!Z{[0b
#include <iostream> }4Ef31X8q
xKi:
2
int main() S|CN)8Jsi
{ @A GM=v
std::cout << "Hello, world!" << std::endl; *I:^g
return 0; \Z{6j&;
} U(4>e!
S%uwQ!=O8
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C++/CLI :70[zo7n'
int main() LZG?M|(6D
{ airg[dK
System::Console::WriteLine("Hello, world!"); wJ,l"bnq
} Zi<Y?Vm/,O
e*{'A
ecfw[4B`
C# (C Sharp) G~b/!clN
class HelloWorldApp o
EXN$SIs
{ \qj4v^\
public static void Main() HRS^91aK
{ =4+Wx8ZeW
System.Console.WriteLine("Hello, world!"); :08b&myx
} #;4<dDVy
} D"UCe7
l6]:Zcd0
l.[S.@\ =.
COBOL _Vul9=
IDENTIFICATION DIVISION. MKMWHGN
PROGRAM-ID. HELLO-WORLD. BC.~wNz6
m?G@#[
l
ENVIRONMENT DIVISION. ]06orBV
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DATA DIVISION. g-)izPX
@#m@ .
PROCEDURE DIVISION. oMey^]!
DISPLAY "Hello, world!". vo<'7,
STOP RUN. ;:nx6wi
T rK-XTev
wyWe2d
Common Lisp jiw5>RNt
(format t "Hello world!~%") moz*=a
`#J0@ -
sa6/$
DOS批处理 ~nLE?>x|Z
@echo off %+gK5aVab
echo "Hello, world!" $o}Ao@WkO
2aj9:S
s9^r[l@W0U
Eiffel Ix~_.&
class HELLO_WORLD SWwL.-+E]
nSR7$yS_
creation eI99itDQ
make Q1hHK'3w
feature +8p4\l$<`
make is :qlcN @_
local <KB V
io:BASIC_IO wN}@%D-[v
do !g|)?XWc
!!io :]]#X
~J
io.put_string("%N Hello, world!") X0\O3l*j
end -- make 5 1&||.
end -- class HELLO_WORLD 1V/?p<A
Z@sDxYt9
<yNu/B.M
Erlang U0X,g(2'
-module(hello). k9Pwf"m|](
-export([hello_world/0]). *z852@
^W8kt
hello_world() -> io:fwrite("Hello, World!\n"). zH)M,+P
qK=uSLo\+
Q6qIx=c4
Forth dC,a~`%O
." Hello, world!" CR m+m2<|%x
t_ju[xL5B
#M/^n0E
Fortran bn*SLWWQ.3
WRITE(*,10) };/;L[,G
10 FORMAT('Hello, World!') k{Ad(S4J&
STOP 4{zz-4=
END z:gp\
r~2>_LK
k4i*80
HTML ."X}A
t
<HTML> Hs6?4cgj
<HEAD> E@}
NV|90
<TITLE> Hello World! </TITLE> esh7*,7-z*
</HEAD> gPT<%F
<BODY> rm}%C(C{J
<p>Hello World!</p> ,y>Sq +
</BODY> Z.QgL=
</HTML> -/w#f&Y+]8
_dQg5CmlG
"O (N=|b
HQ9+ \5
S^~(iL
H c;6[lv
arWP]%E0W
$:l>g)c
INTERCAL v^0*{7N'
PLEASE DO ,1 <- #13 =%=lq0GF0
DO ,1 SUB #1 <- #238 .m gm1zz
DO ,1 SUB #2 <- #112 70Z#Ej
DO ,1 SUB #3 <- #112 j-$F@p_2F
DO ,1 SUB #4 <- #0 `>1XL 2
DO ,1 SUB #5 <- #64 #];b+ T
DO ,1 SUB #6 <- #238 XK+"
x!
DO ,1 SUB #7 <- #26 v}`{OE:-J
DO ,1 SUB #8 <- #248 Z~S%|{&Br
DO ,1 SUB #9 <- #168 =Ts5\1sc>
DO ,1 SUB #10 <- #24 :@~W$f\y
DO ,1 SUB #11 <- #16 kN~:Bh$
DO ,1 SUB #12 <- #158 d}:eLC
DO ,1 SUB #13 <- #52 V9:Jz Q=?`
PLEASE READ OUT ,1 .D8|_B
PLEASE GIVE UP >))f;$D=
(,`R >Dk
D\H;_k8
Java R\T1R"1
public class Hello chC= $(5t
{ E:$EK_?:t
public static void main(String[] args) Y W9+.Dc`
{ -s6k't
System.out.println("Hello, world!"); {9
.sW/
} 3xX^pjk
} Vu=e|A#
je#OV,uHM
UFSbu5 j
JSP my]t[%Q{
<% WeiDg,]e$b
out.print("Hello, world!"); ,
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%> BN>t"9XpW
qP k`e}D
`k;MGs)&
MIXAL ou\M}C`E
TERM EQU 19 the MIX console device number ud
grZ/w]
ORIG 1000 start address \?_M_5Nb
START OUT MSG(TERM) output data at address MSG QWQJSz5
HLT halt execution
YZdV0-S
MSG ALF "MIXAL" \8<ZPqt9
ALF " HELL" H_nIlku
ALF "O WOR" y>! 8mDvZ
ALF "LD " Rp0`%}2
o
END START end of the program tv 7"4$T
4`[2Te>
nRHxbE}::
Nuva EA``G8Vn>
<..直接输出..> |MMaaW^"
Hello, world! xg;I::hE7X
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<..或者..> YwizA}a#
%o
<. LX8A@Yct
// 不带换行 mMOjV_
? "Hello, world!" DJJd_
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// 或者 oAprM Z7Y
MHqk-4Mz
// 带换行 =kP|TR!o-
?? 'Hello, world!' IY"+hHt
.> MU>6s`6O
5<$8.a#
$n=w
OCaml J?%e cCN
let main () = (Go1@;5I
print_endline "Hello world!";; 3j7Na#<tL3
8= "01
^JMO POm
Pascal 7R7e3p,K
program Hello; PJF1+I.%c#
begin :*I='M9B
writeln('Hello, world!'); 7U1^=Y@t}
end. H8!)zZ
Q+7+||RW
z]/!4+
Perl KXf(v4
#!/usr/local/bin/perl /<VR-yr
print "Hello, world!\n"; SH6+'7
5V*R
Dh
JUCp#[q
PHP &dky_H
<?php +~n4</
print("Hello, world!"); 3lsfT-|Wt&
?> cH:9@> '$a
Qf($F,)K
83!{?EPE
Pike 6an= C_Mb`
#!/usr/local/bin/pike "t)$4gERK
int main() z'&tmje[?
{ U1;&G
write("Hello, world!\n"); z7_h$v
return 0; \C<'2KZR,
} {|B
2$1':
Y[0mTL4IO
0[ZB ^
PL/I j8)rz
Test: procedure options(main); xnOd$]
declare My_String char(20) varying initialize('Hello, world!'); Oy_%U*
put skip list(My_String); | Di7,$c
end Test; y>>)Yo&|
*cP(3n3]R
Aa+<4
R
Prolog kx,3[qe'S
goal %v4*$E!f
write("hello,world!"). DX_?-jw})f
i`}!<{k
WBWIHv{j
Python 4MrUo9L$s
#!/usr/local/bin/python sSy!mtS
print "Hello, world!" &!F"3bD0
WH_
W:
wvmcD%
REXX $It3}?>C'
say "Hello, world!" BA8g[TA7K
3b?8<*
ye-[l7
Ruby a+^,EY
#!/usr/bin/ruby 9@8'*a{`m
print "Hello, world!\n" z|8zNt Ug
VG_xNM
w>e+UW25Y
Scheme NG8F'=<
(display "Hello, world!") b}&.IJ&40j
(newline) /@64xrvIl=
!u;gGgQF
MZ?+I~@
sed (需要至少一行输入) ${e5Ka
sed -ne '1s/.*/Hello, world!/p' hmB`+?,z*
3BSZz%va
}wZsM[NDB
Smalltalk :_|Xr'n`A
Transcript show: 'Hello, world!' ojyP.R
D63?f\
Z*n4$?%W
SNOBOL qpjiQ,\:b
OUTPUT = "Hello, world!" \]0#jI/:
END }.1}yz^y
Ept=&mJPu
%\L{Ud%7
SQL 5+2qx)FZ
create table MESSAGE (TEXT char(15)); :F_>`{
insert into MESSAGE (TEXT) values ('Hello, world!'); '~VF*i^4
select TEXT from MESSAGE; 6_&S
?yA
drop table MESSAGE; "E@A~<RKP
z31g"
nRyx2\Py+
Tcl y eam-8
#!/usr/local/bin/tcl vVZ+u4y
puts "Hello, world!" \opcn\vW
.X5A7 m
Qxfds`4V9i
TScript 55ft,a
? "Hello, world!" A2!pbeG
M8IU[Pz4
H<tU[U=G
Turing "xNP"S
put "Hello, world!" i91k0q*di
6tGF
yg6o#;
UNIX-style shell wq|7sk{
程序中的/bin/sh可改为您使用的shell &dPI<HlM
oIniy{
#!/bin/sh p
+nh]
echo 'Hello, world!' U02
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Gx*B(t]4y
GUI 3
}3C*w+
8|nc($}~
Delphi x`Wb9[u8
program HelloWorld; BSL+Gjj~}
uses Fkg%_v$
Dialogs; ^Rtxef
begin c
D.;
ShowMessage('Hello, World!'); X3][C
end. 9e4`N"#,lI
P$]K
nvA7eTO6C
Nuva L
F&!od9[
<. E:-~SH}
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) S|T_<FCY
.> w}s5=>QG%
D< kf/hj
?M^qSo=/~
Visual Basic 3.9/mztS
MsgBox "Hello, world!" ~Kl"V%>
'或者 ~pHuh#>
Print "Hello, world!" h/2@4XKj
eFotV.T!#
<m0=bm{j
Visual FoxPro E@6gTx*
? "Hello, world!" a|(|!=
5A^8?,F@
$inKI
X11 1]Cdfj6@
用一个程序 z "z
Mf !S'\
xmessage 'Hello, world!' f@q.kD21
Z|fi$2k0!
用C++和gtkmm 2 4TyzD%pOw
{?q`9[Z
#include <iostream> ^/cqE[V~,
#include <gtkmm/main.h> +p&zM3:9w
#include <gtkmm/button.h> hi4-Z=pl
#include <gtkmm/window.h> &M tF
using namespace std; [mj=m?j
cB_9@0r[S
class HelloWorld : public Gtk::Window !E|R3eX_
{ A'Z!l20_
public: k2fJ
HelloWorld(); gvPHB+#A
virtual ~HelloWorld(); S(^YTb7
protected: Y]^*mc0fE
Gtk::Button m_button; eA{A3.f"Hz
virtual void on_button_clicked(); 72/ bC
}; 7IQaXcl
'T(Q
HelloWorld::HelloWorld() : m_button("Hello, world!") |onLJY7)
{ s
Ytn'&$\
set_border_width(10); VbTX;?
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); |`pBI0Sjo
add(m_button); <WnIJum
m_button.show(); #DARZh U)
} m%UF{I,
'+ mI
HelloWorld::~HelloWorld() {} 66sgs16k
feH&Ug4?G
void HelloWorld::on_button_clicked() nE?:nJ|%E
{ WncHgz
cout << "Hello, world!" << endl; f,|;eF-Z
} Y^C(<N$
)T? BO
int main (int argc, char *argv[]) OH@gwC
{ 2Nx:Y+[
Gtk::Main kit(argc, argv); 9P,[MZ
HelloWorld helloworld; JG&E"j#q
Gtk::Main::run(helloworld); 6`%|-o
:
} LpI4R
%%I:L~c
N"tX K
Java
DZ4gp
import java.awt.*; 9Y2.ob!$}
import java.awt.event.*; D=Nt0y
x>,wmk5)
public class HelloFrame extends Frame (kyRx+gA
{ 9G"4w` P
HelloFrame(String title) :4x6dYNU
{ u\/TR#b
super(title); L@jpid95
} mM2I
public void paint(Graphics g) e>6W ^ )
{ w~+\Mf z
super.paint(g); Jr%F#/
java.awt.Insets ins = this.getInsets(); 8N$Xq\Da+>
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); d>T8V(Bb
}
j=G
public static void main(String args []) Fe+(+ S
{ vO53?vN[m9
HelloFrame fr = new HelloFrame("Hello"); W#kyD)(F
iQ1[60?)T
fr.addWindowListener( Wb#<ctM>
new WindowAdapter() L>&{<M_
{ pAqPHD=
public void windowClosing(WindowEvent e) O*lIZ,!n
{ XiV
K4sD8
System.exit( 0 ); b6H7>x
} Ao*:$:k
} {.0I!oWv
); lqgR4 !
fr.setResizable(true); 2^75|Q
fr.setSize(500, 100); TKbfZw
fr.setVisible(true); Tr4\ `a-i
} &U CtyCz
} n5efHJU
L?P[{Ohh/
H3pZfdh?w
Java Applet g;OR{
Java Applet用于HTML文件。 @MoCEtt
:cIPX%S
HTML代码: |}:q@]dC#
;Xqi;EA
<HTML> PR AP~P&^
<HEAD> [3ggJcUgW>
<TITLE>Hello World</TITLE> K6)IBV;
</HEAD> I>w|80%%
<BODY> 'vZy-qHrV
9eE
FX7
HelloWorld Program says: ;PqC*iz
-UAMHd}4
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> PI9aKNt
</APPLET> \d:Uq5d)0
G(o6/
</BODY> +z#+}'mT%
</HTML> *lu*h&Y