“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。 wlVvxX3%
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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》。 :#SNpn=@
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以下是用不同语言写成的Hello World程序的几个例子: s##Ay{
Ada ^
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with Ada.Text_Io; use Ada.Text_Io; ohplj`X[21
procedure Hello is 6Ahr_{
begin 7TdQRB
Put_Line ("Hello, world!"); 0||F`24
end Hello; Ilef+V^qr
p`p?li
CWvlr nv
汇编语言 n?Z f/T
%~\
x86 CPU,DOS,TASM gvo?([j-m
MODEL SMALL v= 8VvT8
IDEAL 6ZEdihBei
STACK 100H 8m7;x/0ld
H:Lt$
DATASEG r=0j7^B#
HW DB 'Hello, world!$' >13/h]3
l0#4Fma
CODESEG Hf_'32e3<
MOV AX, @data 0etwz3NuW
MOV DS, AX nNs .,J)
MOV DX, OFFSET HW M8_ R
MOV AH, 09H G"C;A`6
INT 21H .q inR6=
MOV AX, 4C00H 9A<0zt
INT 21H mt^`1ekoY
END InN{^uN
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x86 CPU,GNU/Linux,NASM P57GqT
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). EW9b*r7./
;Enter this into "hello.asm" then type: g? I!OG
;"nasm -f elf hello.asm" ?OO%5PSe n
;"ld hello.o -o hello" sW'6}^Q
;"./hello" -%=RFgU4
f?5A"-NS
section .data ;data section declaration TZBVU&,{Z
msg db 'Hello World!',0AH GoL|iNW`
len equ $-msg ;string length YM8rJ-
p}BGw:=
section .text ;code section declaration L]*`4L
global _start ;entry point (start of execution) R9r)C{63S&
_start: mov edx,len ;string length LUG9 #.
mov ecx,msg ;string start feN!_-
mov ebx,1 ;file handle: stdout j%u8=
mov eax,4 ;sys_write E@mkm
int 80h ;kernel system call ,P~QS
!U[:5@s06
mov ebx,0 ;return value Pv[ykrm/
mov eax,1 ;sys_exit FH[#yq.Pr
int 80h ;kernel system call + "zYn!0
)r pD2H
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x86 CPU,Windows,MASM32 \H[Yyp4
.386 M#T#:wf~
.model flat,stdcall qzHU)Ns(_
option casemap:none ~.H~XKw
;Include 文件定义 *F..ZS'$[
include windows.inc Onyh1
include user32.inc n5\}KZh
includelib user32.lib <d S5|||
include kernel32.inc >'.[G:b
includelib kernel32.lib vuW-}fY;
;数据段 L^x5&CCwk
.data
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szCaption db 'A MessageBox!',0 3wo'jOb
szText db 'Hello,world!',0 IE}Sdeqi)
;代码段 P]-#wz=S
.code
Y=|CPE%V
start: V4Qz*z%
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK DEcGFRgN~
invoke ExitProcess,NULL ILNXaJ'0a
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 5E0w n'
end start )Z&HuEg{ZR
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<a fO 6?`
AWK ~7dF/Nn5
BEGIN { print "Hello, world!" } 8ZFH}v@V1'
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BASIC i:{:xKiC a
传统版BASIC(例如GWBASIC): PQ i
}Evxa
5e)i!;7Uv
10 PRINT "Hello, world!" >r~|1kQ.
20 END y=wdR|b
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或在提示符输入: |Cu1uwy
!*9FKDB{
?"Hello, world!":END vWuyft*
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现代版BASIC(例如Quick BASIC): r<v_CFJ
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Print "Hello, world!" =m7C Jc
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以下的语句在Quick BASIC中同样有效: k~& o
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? "Hello,world!" kF#{An)P
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y _6r/z^
BCPL
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GET "LIBHDR" pTN%;`)
{
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LET START () BE s* @QT8%
$( ?,!uA)({n
WRITES ("Hello, world!*N") 4_WH
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$) uht(3
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QP'qG@j[:
Befunge 9OH.&g
"!dlrow olleH">v >}mNi:6xq
, dWMccn;-m
^_@ 3Nc'3NPQ'
[1e.i
$x/J+9Ww
Brainfuck 3Sk5I%
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< gNG.l
+++++++++++++++.>.+++.------.--------.>+.>. 9GtLMpy
makaI0M
AwtIWH*e
C kja4!_d
#include <stdio.h> 6V+V
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int main(void) ShsJ_/C2
{ N!]PIWnC
printf("Hello, world!\n"); ,nI_8r"M>
return 0; \A` gK\/h
} $3lt{ %
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C++ u<x[5xH+
#include <iostream> j)<;g(
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int main() |{zHM2 3gD
{ 5aa}FdUq
std::cout << "Hello, world!" << std::endl; (\T8!s{AO
return 0; r4;^c}
} "0!~g/X`rK
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C++/CLI HI}pX{.\
int main() Z3OZPxm
{ ,G/\@x%
System::Console::WriteLine("Hello, world!"); 8}Fw%;Cb
} zuK/(qZ
Iv Y,9D
=PI^X\if88
C# (C Sharp) -bv>iIC
class HelloWorldApp Z83q-
{ [c,|Lw4
public static void Main() y>DfM5>
{ l~`txe
System.Console.WriteLine("Hello, world!"); K(%dcUGDK>
} + 8MW$ m$
} +8L(pMI4
=1%zI%
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COBOL R>Z,TQU
IDENTIFICATION DIVISION. +s#S{b
PROGRAM-ID. HELLO-WORLD. aS c#&{
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ENVIRONMENT DIVISION. 6 ,7/8
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DATA DIVISION. 8<wtf]x
lCM6T;2ID
PROCEDURE DIVISION. 9O(i+fM
DISPLAY "Hello, world!". g(ZeFOn
STOP RUN. c#]'#+aH
2U-#0,ll]
ls8olLM>
Common Lisp Y\ #.EVz
(format t "Hello world!~%") ;u4@iN}p
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IKNFYe[9e
DOS批处理 Jnh;;<
@echo off <Tj"GVZAEO
echo "Hello, world!" 0"wbcAh)
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[lDt0l5^
Eiffel M="WUe_
class HELLO_WORLD L8,H9T#e
U08<V:~
creation jhjW*F<u
make ]# tGT0
feature clPZd
make is Pn'QOVy
local @lb=-oR!~
io:BASIC_IO pgLzFY['
do 2?#y
|/
!!io M"$jpBN*
io.put_string("%N Hello, world!")
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end -- make 3{N p 9y.
end -- class HELLO_WORLD rf1wS*uU+
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T U"K#V&u
Erlang rw}5nv
-module(hello). qv
;1$
-export([hello_world/0]). ')1}#V/I
$S($97IU=
hello_world() -> io:fwrite("Hello, World!\n"). ~pX(w!^
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.N-'; %8
Forth nzQYn
." Hello, world!" CR V7KtbL#
($[r>)TG
#Tgz,e9
Fortran )7Ho n
WRITE(*,10) } K+Q9<~u
10 FORMAT('Hello, World!') hJ$C%1;
STOP jm#F*F vL
END Skr\a\
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HTML 4 _c:Vl
<HTML> Se;?j-
<HEAD> ,J`lr
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<TITLE> Hello World! </TITLE>
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</HEAD> -N-4l
<BODY> ulz\x2[Pf
<p>Hello World!</p> c'TiWZP~
</BODY> Y*5@|Q
</HTML> M&}oat*
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Z;"4$@|qE
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H x3Dg%=R
}v'PY/d.
a@S4IoBg%
INTERCAL NbQMWU~7
PLEASE DO ,1 <- #13 rH2tC=%
DO ,1 SUB #1 <- #238 ,
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DO ,1 SUB #2 <- #112 BRSgB-Rr7
DO ,1 SUB #3 <- #112 C-:SQf
DO ,1 SUB #4 <- #0 1O'* X
DO ,1 SUB #5 <- #64 Nw3I
DO ,1 SUB #6 <- #238 mvL0F%\.\
DO ,1 SUB #7 <- #26 +s*l#'Q
DO ,1 SUB #8 <- #248 N,sqr k]
DO ,1 SUB #9 <- #168 xi1N?
pP
DO ,1 SUB #10 <- #24 %Zv(gI`A
DO ,1 SUB #11 <- #16 Z@c0(ol
DO ,1 SUB #12 <- #158 {g:/BFLr#
DO ,1 SUB #13 <- #52 K,L>
PLEASE READ OUT ,1 !e#I4,f n
PLEASE GIVE UP mKf>6/s{c
e8P!/x-y
|/T<]+X;
Java JQbMw>Y
public class Hello @dT: 1s
{ E^EU+})Ujr
public static void main(String[] args) ai;gca_P#
{ Vx7Dl{?{'
System.out.println("Hello, world!"); {Y@-*pL]
} hI>rtaY_
} .1[2 CjQ
hk lO:,`
dPyBY]`
JSP z7.C\l
<% faL^=CAe
out.print("Hello, world!"); gQk#l\w_
%> Z,8+@
Y+"hu2aPkY
[ilv/V<
MIXAL &"H<+>`
TERM EQU 19 the MIX console device number x9o^9QJh
ORIG 1000 start address xJH9qc ME
START OUT MSG(TERM) output data at address MSG @cTZ`bg
HLT halt execution .^N#|hp^
MSG ALF "MIXAL" 8)q]^
ALF " HELL" mb*h73{{
ALF "O WOR" +N(YR3
ALF "LD " thm3JfQt
END START end of the program 1A/c/iC
ncw?;
c^[1]'y
Nuva (zTI)EV
<..直接输出..> ! MF"e|W
Hello, world! 2cX"#."5p
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<..或者..> yY@s(:
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E[
<. <*(UvOQuX
// 不带换行 oN6*WNt J
? "Hello, world!" fFTvf0j
B,m$ur#$
// 或者 GZhfA ;O,
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// 带换行 }^Ua
?? 'Hello, world!' 4k&O-70y4^
.> !Bd*
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CXP $bt}
Cp~3Jm3
OCaml B 1ZHV^
let main () = 4M<JfD
print_endline "Hello world!";; m|cWX"#g
neY=:9
PHiX:0zT
Pascal LG@c)H74
program Hello; L};;o+5uJD
begin Hb AMoow!
writeln('Hello, world!'); MCrO]N($b
end. 5vh"PlK`s
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b=QGbFf
Perl ";Ig%]
#!/usr/local/bin/perl #ZnX6=;X
print "Hello, world!\n";
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)Fr;'JYC1S
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PHP b\Xu1>
<?php uA/.4 b
print("Hello, world!"); *ZSp9g"Z
?> 7%"\DLA
&_^*rD~
@Jn:!8U0
Pike qxcBj
#!/usr/local/bin/pike Y /ac}q
int main() d
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{ LX?r=_\
write("Hello, world!\n"); (#l_YI
-
return 0; G$kwc
F'C
} NUNn[c
, ZP3F+XKb
O\8|niW|
PL/I I&NpN~AU
Test: procedure options(main); !%\To(r[
declare My_String char(20) varying initialize('Hello, world!'); $Ex 9
put skip list(My_String); zf;[nz
end Test; ONe!'a0
674oL,
ch8w'
Prolog B[_b J
*
goal (yTz^o$t|
write("hello,world!"). c+i`Zd.m<
cxJK>%84
.s*EV!SE
Python ?kFCYZK|"
#!/usr/local/bin/python K,,@',
print "Hello, world!" ,JBw$C
T[[
8OtUY}R
REXX WT!\X["FI$
say "Hello, world!" a*8.^SdzR
;@Hi*d[
rn5g+%jX*
Ruby
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#!/usr/bin/ruby ]XafFr6pe
print "Hello, world!\n" DUliU8B}\
-r'seb5
8\.1m9&r>o
Scheme `rdfROKv
(display "Hello, world!") wukos5
(newline) ?G>TaTiK#
_5S$mc8K0
JTB~nd>
sed (需要至少一行输入) q.b4m 'J
sed -ne '1s/.*/Hello, world!/p' PXu<4VF
g!Yh=kA'N
u,,WD
Smalltalk Hi"
n GH
Transcript show: 'Hello, world!'
Z#t)Z "
6F&]Mk]V8
|QTqa~~B
SNOBOL v*fc5"3eO
OUTPUT = "Hello, world!" ~_j%nJ
&2
END
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Z#:@M[HH{
m'"VuH?^
SQL 2CgIY89O
create table MESSAGE (TEXT char(15)); 6')SJ*|yS
insert into MESSAGE (TEXT) values ('Hello, world!'); jMWwu+w
select TEXT from MESSAGE; +U)|&1oa
drop table MESSAGE; bnY8.Lpf|
cB F%])!
FRQ("6(
Tcl jLS]^|
#!/usr/local/bin/tcl {ro!OuA
puts "Hello, world!" 7`<? fO
X6*y/KGN
&r5%WRzpYT
TScript mL5f_Fb+
? "Hello, world!" 8Y~T$Yj^
>upUY(3&
RkP|_Bf8)
Turing $5CY<,f
put "Hello, world!" 9x^
/kAB
m:Cx~
'L59\y8H
UNIX-style shell 9.#R?YP$
程序中的/bin/sh可改为您使用的shell >8;%F<o2
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#!/bin/sh )[X!/KR90
echo 'Hello, world!' )bU")
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GUI IeI%X\G
NWwtq&pz2
Delphi |Pl{Oo+
program HelloWorld; [Q_|6Di
uses Ul0<Zxv
Dialogs; LF.~rmPa
begin HtYR 0J
ShowMessage('Hello, World!'); 4m!3P"$
end. j?hyN@ns
#&KE_n
)mVYqlU"
Nuva KBHKcFk
<. /r@
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) YgOgYo{E!
.> L=!kDU
QGG(I7{-
3CuoBb8
Visual Basic .+o>
MsgBox "Hello, world!" S,v >*AF
'或者 8B+^vF
Print "Hello, world!" _H<OfAO
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Visual FoxPro *LdH/C.LIf
? "Hello, world!" vUx$[/<
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-"9)c^KVx
X11 ']e4!
用一个程序 Xtnmh)'K~#
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xmessage 'Hello, world!' f|1FqL+T]
<f{`}drp/
用C++和gtkmm 2 Cy'W!qH
<%uZwk>#
#include <iostream> &YP>"<
#include <gtkmm/main.h> k\Tm?^L)
#include <gtkmm/button.h> `9{C/qB
#include <gtkmm/window.h> sc>)X{eb
using namespace std; u`,R0=<4
A_U0HVx_
class HelloWorld : public Gtk::Window abP?Dj&
{ N ] /d
public: 3"D00~
HelloWorld(); x+`3G.
virtual ~HelloWorld(); R:x04!}
protected: [;8fL
Gtk::Button m_button; Xb
1 ^Oj
virtual void on_button_clicked(); ;K-t
}; :S6 <v0`Z
vJ}
HelloWorld::HelloWorld() : m_button("Hello, world!") 2DdLqZY#
{ Cms"OkN
set_border_width(10); 8^i,M^f^{
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); S9055`v5
add(m_button); 5j5t?G;d,
m_button.show(); ^qr[?ky]&
} tO3B_zC
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HelloWorld::~HelloWorld() {} Q_Squuk
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void HelloWorld::on_button_clicked() RVy 87_J1
{ >&Lu0oHH
cout << "Hello, world!" << endl; NZ9,9
} k
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int main (int argc, char *argv[]) k-0e#"B
{ o!0a8i
Gtk::Main kit(argc, argv); NH6!|T
HelloWorld helloworld; czi!q1<vg
Gtk::Main::run(helloworld); <)rH8]V
} ?IO/zkeXg
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1
Java :Xr3 3
import java.awt.*; 74wa
import java.awt.event.*; D)6|| z}
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public class HelloFrame extends Frame (I
g
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{ 1&nrZG9
HelloFrame(String title) * OFT)S
{ m':m`,c!
super(title); -8e tH&
} hV>Ey^Ty
public void paint(Graphics g) ^E*C~;^S
{ 9j9?;3;
super.paint(g); C,.{y`s'
java.awt.Insets ins = this.getInsets(); oD`BX
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); Yy 1Pipv
} U?yXTMD
public static void main(String args []) u{G6xuPWf
{ '11h Iu=:
HelloFrame fr = new HelloFrame("Hello"); Hb4rpAeP
+O6@)?pI
fr.addWindowListener( BtZm_SeA
new WindowAdapter() -ZJ:<
{ gRSG[GMV
public void windowClosing(WindowEvent e) H-lRgJdc
{ \/zS@fz
System.exit( 0 ); yY|U}]u!V
} LnIJw D
} UkQocZdZ
); FiL
JF!
fr.setResizable(true); 1N*~\rV*?
fr.setSize(500, 100); <3OV
fr.setVisible(true); |[ofc!/
} $nWmoe)
} =z.AQe+
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)BDi2 : u
Java Applet =B2=UF
Java Applet用于HTML文件。 vS<e/e+
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HTML代码: $E6uA}s
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