“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。 NX@TWBn%
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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》。 Z A1?'
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以下是用不同语言写成的Hello World程序的几个例子: 8s?;<6
Ada !b rN)b)f
with Ada.Text_Io; use Ada.Text_Io; =XQ3sk6U
procedure Hello is mmwwz
begin !g=,O6
Put_Line ("Hello, world!"); UmiW_JB
end Hello; ^^jF*)DT@
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l"IBt:
汇编语言 %Q1v8l.}
R@=ve
%a-
x86 CPU,DOS,TASM Rk"VFe>r
MODEL SMALL viD+~j18
IDEAL , *e^,|#
STACK 100H 8BE OE<
RW,ew!Z
DATASEG z\_q`43U7
HW DB 'Hello, world!$' $SG^, !!&A
qq[2h~6P]
CODESEG }!Qo
wG
MOV AX, @data .3{S6#
MOV DS, AX d+fmVM?p
MOV DX, OFFSET HW -R~;E[
{%
MOV AH, 09H O7s0M?4
INT 21H #T#&qo#
MOV AX, 4C00H z.e%AcX
INT 21H 1
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1
END &^ =t%A%#
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asQ pVP
x86 CPU,GNU/Linux,NASM z ]o&^Q
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). TkWS-=lNH0
;Enter this into "hello.asm" then type: K&BlWXT
;"nasm -f elf hello.asm" p|(910OEQ
;"ld hello.o -o hello" E2X
K hW
;"./hello" w][
;
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section .data ;data section declaration !ye%A&
msg db 'Hello World!',0AH VG&|fekF
len equ $-msg ;string length %dw-}1X
W$:;MY>0f
section .text ;code section declaration wE%v[q[*X
global _start ;entry point (start of execution) jtQ2vJ-
_start: mov edx,len ;string length 0m7J'gm{
mov ecx,msg ;string start LP@Q8{'
mov ebx,1 ;file handle: stdout ,EcmMI^A
mov eax,4 ;sys_write DG7FG--
int 80h ;kernel system call (z ;=3S
<g>_#fz"K
mov ebx,0 ;return value r.-NfK4
mov eax,1 ;sys_exit =c-j4xna>
int 80h ;kernel system call JP!$uK{u
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x86 CPU,Windows,MASM32 1'c!9
.386 {(D$Xb
.model flat,stdcall [Gh T.
option casemap:none MyCX6+Ci)
;Include 文件定义 ~;UK/OZ
include windows.inc )uwpeq$j7l
include user32.inc {*
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includelib user32.lib ^5=}Y>EJO
include kernel32.inc q$:T<mFK$
includelib kernel32.lib /
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;数据段 EZ1H0fm
.data 5SR29Z[
szCaption db 'A MessageBox!',0 ;]Y.2 J
szText db 'Hello,world!',0 #4%,09+
;代码段 k-e_lSYk&c
.code /Wg$.<!5}
start: g@MTKqs
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK NjYpNd?g
invoke ExitProcess,NULL KSh<_`j
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 3z\:{yl
end start ,_u8y&<|I
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AWK }k \a~<'X
BEGIN { print "Hello, world!" } U>:CX
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BASIC $Jb+}mlT
传统版BASIC(例如GWBASIC): W zy8
NkNw9?:#4
10 PRINT "Hello, world!" bi#o1jR
20 END o2a`4K
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或在提示符输入: 7S2Bm]fP
B`"-~4YAf
?"Hello, world!":END !x;T2l
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现代版BASIC(例如Quick BASIC): "LP4)hr_`
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Print "Hello, world!" j#-ZL-N
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以下的语句在Quick BASIC中同样有效: <gf:QX!
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? "Hello,world!" ~}83\LI}
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BCPL Zp-
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GET "LIBHDR" g 4Vt"2|
1swh7
LET START () BE /~J#c=
$( 0/{-X[z
WRITES ("Hello, world!*N") aJI>qk h?]
$) :Gy
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lG fO
Befunge I4qzdD
"!dlrow olleH">v \Qu~iB(Y
, VI" ,E}
^_@ =2J+}ac
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P)>WIQSr
Brainfuck "o;l8$)VL
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< X*$ 7g;
+++++++++++++++.>.+++.------.--------.>+.>. 2$qeNy
pOIFO=k
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C _f^q!tP&d
#include <stdio.h> =Q3Go8b4HJ
=*"Amd,
int main(void) o=;.RYi
{ ik7#Og~3
printf("Hello, world!\n"); L_)?5IOJ$
return 0; 5!tmG- 'b
} N4)&K[
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C++ T_v
#include <iostream> kJJQcjAP:
.7~Kfm@2
int main() U:_T9!fG
{ 9dqD(S#C;"
std::cout << "Hello, world!" << std::endl; n9cWvy&f
return 0; -}4 H'%Z(i
} Yk?uxZ4)H
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C++/CLI cX*
int main() "pMXTRb
{ la|#SS95
System::Console::WriteLine("Hello, world!"); u+8_et5T
} R;I}#b cJ
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C# (C Sharp) iLv"ZqGrw
class HelloWorldApp d@8_?G}
{ 05|t
public static void Main() pA+Qb.z5z
{ ,A[HYc|uy
System.Console.WriteLine("Hello, world!"); {'>X6:
} )TRDM[u
} E%H,Hk^
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7* Bs
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COBOL NmOQ7T
IDENTIFICATION DIVISION. I0Wn?Qq=@
PROGRAM-ID. HELLO-WORLD. 6kIq6rWF9
t M A
ENVIRONMENT DIVISION. ,,fLK1
ELY$ ]^T
DATA DIVISION. JK,#dA#
,ZMYCl]
PROCEDURE DIVISION. yU .B(|
DISPLAY "Hello, world!". ~@itZ,d\
STOP RUN. -#rFCfPy^
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{a%T <WW
Common Lisp &S3szhe
(format t "Hello world!~%") @H7dQ,%
DU}q4u@)
r10)1`[
DOS批处理 c!w4N5aM
@echo off !ZSC"
echo "Hello, world!" c{FvMV2em
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Mjo
Ge(r6"%7
Eiffel hrEKmRmF-
class HELLO_WORLD Hb!Q}V+Kb8
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creation ;&JMBn]J
make J8/>b{Y
feature :,GsbNKW
make is nM
R_ ?g
local s2w.V
O
io:BASIC_IO '|WMt g
do $t}L|"=8X
!!io 8&`s wu&
io.put_string("%N Hello, world!") xo^_;(;
end -- make <`6-J `.
end -- class HELLO_WORLD joM98H@
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Erlang Jc{zi^)(EN
-module(hello). Yng9_w9Y
-export([hello_world/0]). b3Y9
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hello_world() -> io:fwrite("Hello, World!\n"). sjShm
CgEeO,N]j
7p u*/W~
Forth FUq@
dUv
." Hello, world!" CR 9W'#4
?+`Zef.g
3z~zcQ^\
Fortran hr]NW>;
WRITE(*,10) 1iF
|t5>e
10 FORMAT('Hello, World!') WGp81DNS|
STOP 1*>a
END S1`+r0Fk~n
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n
HTML 3ck;~Ncj<
<HTML> yVh]hL#4+w
<HEAD> go{'mX) }u
<TITLE> Hello World! </TITLE> u\=Nu4)Z
F
</HEAD> 7F+w o
<BODY> = @ph
<p>Hello World!</p> TioI$?l>W(
</BODY> N'2u`br4KP
</HTML> fa<83<.D
[!bTko>rSB
<niHJ*
HQ9+ '%K,A-7W
H L & PhABZ
<([o4%
u!{P{C
INTERCAL nM}X1^PiK"
PLEASE DO ,1 <- #13 #C!8a
DO ,1 SUB #1 <- #238 #kma)_X
DO ,1 SUB #2 <- #112 m"+9[d_u
DO ,1 SUB #3 <- #112 xx9qi^
DO ,1 SUB #4 <- #0 tLV9b %i(
DO ,1 SUB #5 <- #64 yt_?4Hc"
DO ,1 SUB #6 <- #238 o{zo-:>Jp
DO ,1 SUB #7 <- #26 {I(Euk>lR
DO ,1 SUB #8 <- #248 'lIT7MK
DO ,1 SUB #9 <- #168 M[TgNWl/[
DO ,1 SUB #10 <- #24 eJJvEvZ,
DO ,1 SUB #11 <- #16 }tj@*n_
DO ,1 SUB #12 <- #158 UyK|KL
DO ,1 SUB #13 <- #52 R<k4LHDy
PLEASE READ OUT ,1 Fz>J7(Y.j
PLEASE GIVE UP dc%+f
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Java trgj]|?M
public class Hello DSET!F;PG
{ LD^V="d
public static void main(String[] args) % YU(,83(+
{ EJZl'CR
System.out.println("Hello, world!"); q]
,&$d^@
} 3G5i+9Nt.L
} Ij{{Z;o3
WERK JA
rxm!'.+
JSP vco:6Ab$
<% r6MQ|@
out.print("Hello, world!"); r 97 VX>
%> O]lWaiR`
Q[8L='E
P9Rq'u
MIXAL T7!a@
TERM EQU 19 the MIX console device number |\N[EM%.@
ORIG 1000 start address .c~;/@{
START OUT MSG(TERM) output data at address MSG *"1]NAz+
HLT halt execution c%i/ '<Afr
MSG ALF "MIXAL" 2r[Q$GPM<
ALF " HELL" fqvA0"tv
ALF "O WOR" SDdK5@1O4o
ALF "LD " bl}$x/
END START end of the program ~?[@KK
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oa;[[2c
Nuva =_L"x~0I-
<..直接输出..> 1Qf5H!5vx
Hello, world! [ &R-YQ@
t{84ioJ"$
<..或者..> hDVD@b
~v+&
?dg
<. b6);bX>e
// 不带换行 pm<<!`w"
? "Hello, world!" ,:;nq> ;
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// 或者 c67O/ B(
(AR-8
// 带换行 sV3/8W13
?? 'Hello, world!' ^HC!
my
.> B8[H><)o\y
jC;XY !d6
^$rt|]
OCaml V^?+|8_(
let main () = 183'1Z$KA
print_endline "Hello world!";; p&XbXg-
inR8m 4c]P
hQHV]xW
Pascal h2uO+qEsu
program Hello; x ?Q;o+2v
begin jY$|_o.4
writeln('Hello, world!'); -41L^Di\
end. q(a6@6f"kD
YZ/mTQn_D
KX`MX5?x
Perl 5/neV&VcB
#!/usr/local/bin/perl }Y<(1w
print "Hello, world!\n"; B>9D@fmzs
bjD0y
cB[
Xo]FOJ5
PHP d{9jd{
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<?php 6,cyi|s
print("Hello, world!"); w3,QT}W vY
?> S{fNeK
c3K(mM:
E/5w
H/
Pike T[ mTA>d
#!/usr/local/bin/pike sowkxw.^Q
int main() PJkEBdM.
{ o7hjx hmC
write("Hello, world!\n"); ))306*X\
return 0; o.y4&bC14;
} F+c*v#T
) VJ|
{e>}.R
PL/I s_EiA _
Test: procedure options(main); {?eD7xL:-
declare My_String char(20) varying initialize('Hello, world!'); 9) mJo(
put skip list(My_String); (QqKttL:
end Test; =BNmuAY7
#l{qb]n]
*-` /A
Prolog m#'u;GP]k
goal ii{5z;I]X
write("hello,world!"). 2/(gf[elX
Uv5E$Y"e10
O:k@'&
Python Fvi<5v
#!/usr/local/bin/python :c<C;.
print "Hello, world!" mezP"N=L~
qj=12;
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REXX H-0deJ[>
say "Hello, world!" ]TD]
vW YN?"d
hM+nA::w
Ruby s)_sLt8?
#!/usr/bin/ruby 9SMM%(3, r
print "Hello, world!\n" u3ce\
><^A4s
tXPS@4F
Scheme i[WTp??Uv
(display "Hello, world!") U4^dDj
(newline) /:C"n|P7Z
7F.>M
#WfJz}P,!
sed (需要至少一行输入) $+V{2k4X,
sed -ne '1s/.*/Hello, world!/p' GRlA9Q
&ec_jxF
zBqr15
Smalltalk 3$WK%"%T
Transcript show: 'Hello, world!' C.(<KV{b
,!u^E|24
#YhKAG@|
SNOBOL saYn\o"m
OUTPUT = "Hello, world!" :t9(T?2
END >TK`s@jdSV
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)lH?XpfTjm
SQL 5.5dB2w
create table MESSAGE (TEXT char(15)); ilpg()
insert into MESSAGE (TEXT) values ('Hello, world!'); N[zI@>x
select TEXT from MESSAGE; &X +@,!
drop table MESSAGE; sOVaQ&+y
#N,\c@Gy
(Z6[a{}1i
Tcl x$6-7<p
#!/usr/local/bin/tcl +.[#C5
puts "Hello, world!" gy~M]u{
:n>:*e@w%
r\_aux^z
TScript 'VR5>r
? "Hello, world!" l.b
.r]n<
b]CJf8'u
Turing M`iJ6L
put "Hello, world!" qfN<w&P
vWzNsWPK"{
PMkwY{.u
UNIX-style shell zgVplp
程序中的/bin/sh可改为您使用的shell Og-Mnx3
uodO^5"-
#!/bin/sh 1gH5#_?
echo 'Hello, world!' bncK8SK
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GUI $3"0w
~+^,o_hT
Delphi vad" N
program HelloWorld; <}B|4($
uses 5F&i/8Ib
Dialogs; ]P] lG-
begin c3oI\lU
ShowMessage('Hello, World!'); qY#*zx
end. ^!Bpev
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h-!(O^M
Nuva eYR/kZ%<
<. C:gE
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 1&wZJP=
.> LhV4 ^\+
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Visual Basic xp><7{
MsgBox "Hello, world!" ?55('+{l
'或者 PS \QbA
Print "Hello, world!" EA?:GtH
qWQJ>
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Visual FoxPro yHT}rRS8
? "Hello, world!" tk_y~-xz
o&I0*~sN
y]cx}9~
X11 VVCCPK^<
用一个程序 zIRa%%.i<
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xmessage 'Hello, world!' Uf_w
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用C++和gtkmm 2 V 9=y@`;
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#include <iostream> unjo&
#include <gtkmm/main.h> ;x+4jpH]B
#include <gtkmm/button.h> TpMfk7-
#include <gtkmm/window.h> ?e&CbVc4
using namespace std; P\SD_8
QC ?8
class HelloWorld : public Gtk::Window t@)~{W
{
{ =X+DC&]%!
public: ?9=yo5M}
HelloWorld(); ?6uh^Qal
virtual ~HelloWorld(); oqE h_[.
protected: 2LD4f[a;
Gtk::Button m_button; 1F[;
)@
virtual void on_button_clicked();
{n.g7S~
}; HjnHl-
-pkeEuwv{
HelloWorld::HelloWorld() : m_button("Hello, world!") azOp53zR
{ Q5 ohaxjF
set_border_width(10); S5bk<8aPP
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); SOP=
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add(m_button); }3)$aI_
m_button.show();
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} HJ_xg6.x
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HelloWorld::~HelloWorld() {} =X% D;2
;Oe6SNquT
void HelloWorld::on_button_clicked() hM>xe8yE
{ vuw1ycy)
cout << "Hello, world!" << endl; ?\^u},HnE|
} 5]'iSrp
n7{1m$/
int main (int argc, char *argv[]) !kmo%+
{ (v(_XlMK
Gtk::Main kit(argc, argv); `bt]v $
HelloWorld helloworld; zxwpS
Gtk::Main::run(helloworld); A3 j>R477A
} 5{cAawU.
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Java GI6 EZ}.MZ
import java.awt.*; B_}=v$
import java.awt.event.*; bM;tQ38*
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public class HelloFrame extends Frame j}h50*6KO
{ a&Z|3+ZA
HelloFrame(String title) m=%W <8[V
{ 94K;=5h
super(title); (y(V,kXwa8
} TXrC5AJx
public void paint(Graphics g) ](8XC_-U'
{ Uv%"45&7
super.paint(g); N#ex2c
java.awt.Insets ins = this.getInsets(); H<1C5-
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); Z39^nGO
} >1joCG~
public static void main(String args []) 3zh'5qQ
{ kTFN.kQx@
HelloFrame fr = new HelloFrame("Hello"); 1u&P,&T
lkw[Z}\
fr.addWindowListener( L i< c
new WindowAdapter() k$I[F<f
{ Dw.>4bA.
public void windowClosing(WindowEvent e) B5tJ|3!
{ eeL%Yp3+
System.exit( 0 ); nNQ\rO
} J!yc9Q
} TxxW/f9D
); Ww8C![ ,
fr.setResizable(true); 7&HP2r
fr.setSize(500, 100); 1f}S:Z
fr.setVisible(true); n,V`Y'v)
} $F/&/Aa
} YK}(VF?&
Qt@~y'O
tgrQ$Yjk
Java Applet 4tq>Lx^5U
Java Applet用于HTML文件。 $xloB
tQ|b?3
HTML代码: ]JhtO{
a"WnBdFZ
<HTML> 8<_WtDg
<HEAD> `5q`ibyPI
<TITLE>Hello World</TITLE> {]Lc]4J
</HEAD> &4{%3 w_/
<BODY> d(]LRIn~1
4J I;NN
HelloWorld Program says: W^yF5
L`"cu.l
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> t^h>~o'\
</APPLET> RNi&OG(
*riGi
</BODY> Gg-<3z
</HTML> 5dL-v&W
^[id8
Java代码: "BzRLg!J
# ^%'*/z
import java.applet.*; ,,{Uz)>'W6
import java.awt.*; FPcgQ
v;p
k+s<;{
public class HelloWorld extends Applet *b7v)d#
{ $s)
^zm~
public void paint(Graphics g) Wt4!XV
{ w$&10
g.drawString("Hello, world!", 100, 50); x#ouR+<
} _ H@pYMNH
} kB~: HQf
g@1MImc'!
.#+rH}=Z
java script <'gCI Ia2
java script是一种用于HTML文件的脚本语言。要查看以下程序的运行结果,只要将其复制到任何HTML文本即可。 J@R+t6$3O
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p
<script language="java script"> <:%Iq13D
function helloWorld() @V<