“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。 zqj|$YNC
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将Hello World程序作为第一个学写的程序,现在已经成为一种传统。该程序最早出现在由Brian Kernighan和Dennis Ritchie写的计算机程序设计教程《C语言程序设计》。 w&H>`l06
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以下是用不同语言写成的Hello World程序的几个例子: WVyDE1K<
Ada uB"B{:Kz
with Ada.Text_Io; use Ada.Text_Io; .>;??BG}
procedure Hello is W^3 Jg2gE
begin \"ogQnmz
Put_Line ("Hello, world!"); 0"e["q{|
end Hello; Pxf>=kY
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汇编语言 VvIUAn
q'S[TFMNE
x86 CPU,DOS,TASM +Iuu8t
MODEL SMALL } OIe!
IDEAL %G(VYCeK
STACK 100H :7X4VHw/
;L fn&2G
DATASEG l7T?Yx j
HW DB 'Hello, world!$' SVVE b6&
?wkT=mv
CODESEG ILDO/>n
MOV AX, @data &V
axv$v}
MOV DS, AX A\S=>[ar-
MOV DX, OFFSET HW p,z>:3M
MOV AH, 09H vW.f`J,\D'
INT 21H JG^GEJ
MOV AX, 4C00H 4PD5i
INT 21H )kjQ W&)g
END S}Wj.l+F
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jl}9R]Y_2
x86 CPU,GNU/Linux,NASM J1(SL~e],
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). -,*m\Fe}
;Enter this into "hello.asm" then type: a=ZVKb
;"nasm -f elf hello.asm" =k d-rIBc
;"ld hello.o -o hello" J;XO1}9
;"./hello" kJB:=iq/x$
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j#F
section .data ;data section declaration el$@^Wy&$
msg db 'Hello World!',0AH ZL0Vx6Ph
len equ $-msg ;string length 38-kl,Vw
O D5qPovsd
section .text ;code section declaration zK~_e\m
global _start ;entry point (start of execution) !lg_zAV
_start: mov edx,len ;string length 9+*{3 t
mov ecx,msg ;string start Heqr1btK
mov ebx,1 ;file handle: stdout PSAEW.L
mov eax,4 ;sys_write .I|b9$V
int 80h ;kernel system call Rmn|!C%%K
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mov ebx,0 ;return value /kr|}`#
Z
mov eax,1 ;sys_exit Z/ml,4e
int 80h ;kernel system call @P0rNO%y
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vt"bB
x86 CPU,Windows,MASM32 bO$KV"*!
.386 xH28\]F5n
.model flat,stdcall I3.JAoB>!
option casemap:none _0
43,
;Include 文件定义 a'HHUii=
include windows.inc <~ay4JY
include user32.inc U43U2/^
includelib user32.lib t^Bs3;E^
include kernel32.inc {TJ"O
includelib kernel32.lib TPx0LDk%(
;数据段 jK\kASwG
.data SefF Ci%4
szCaption db 'A MessageBox!',0 9`qw,X&AK_
szText db 'Hello,world!',0 #(}{*dR
;代码段 9:%')M&Q
.code i\
7JQZ
start: cfBlHeYE
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK u-.5rH l
invoke ExitProcess,NULL Q>X1 :Zn3
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> AWFq5YMSI
end start zO9WqP_`iR
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AWK vfT
@;`
BEGIN { print "Hello, world!" } iX2exJto
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E rA*a3
BASIC 9;*B*S~znW
传统版BASIC(例如GWBASIC): DV?c%z`YO
fi'zk
10 PRINT "Hello, world!" LD WYFOGQ
20 END &sn-;r
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或在提示符输入: .j)DE}[q>
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?"Hello, world!":END v8\_6}*I
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>fen
现代版BASIC(例如Quick BASIC): (G{:O
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Print "Hello, world!" { .i^&
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以下的语句在Quick BASIC中同样有效: V@G|2ZI
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? "Hello,world!" ZZ}HgPZ
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P"Q6 wdm
BCPL dZkKAK:v
GET "LIBHDR" 1'&HmBfcb
FD~uUZTM
LET START () BE #Wl9[W/4
$( 'g<FL`iP
WRITES ("Hello, world!*N") AKLFUk
$) Y!c7P,cZ+3
b,ZBol|X
FFVh~em{
Befunge lUnC+w#[
"!dlrow olleH">v LChwHkRHJI
, ?:vB_@
^_@ r<dvo%I#|
^5!"[RB\
W^,p2
Brainfuck 4e[ 0.2?
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< _w <6o<@
+++++++++++++++.>.+++.------.--------.>+.>. w2!5TKZ`
<gvgr4@^yR
~O/B
C !_>/ r
#include <stdio.h> }*P;kV
XGnC8Be{4
int main(void) R6GlQ G
{ bV)h\:oC
printf("Hello, world!\n"); ey>tUmt6?
return 0; L?(1
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} cE,,9M@^
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"Q.C1#W}.
C++ xJ\sm8
#include <iostream> oB!-JX9
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int main() ,0,&
L
{ ?[5_/0L,=
std::cout << "Hello, world!" << std::endl; up?S (.*B
return 0; FSZ :}Q
} \rbvlO?}
8Sf}z@~]
~fpk`&nhe
C++/CLI DQN"85AIZ
int main() w*Ze5j4@
\
{ NU7k2`bqAk
System::Console::WriteLine("Hello, world!"); TDR#'i
} wD pL9 q
lz#@_F|.*
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C# (C Sharp)
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class HelloWorldApp ]MMXpj,9h
{ RL"hAUs_1
public static void Main() )4w3$Q
{ 90Z4saSUw
System.Console.WriteLine("Hello, world!"); y8di-d3_
} ]4_)WUS.c
} #@uF?8u
%SMP)4Y/R
eGrxS;NY
COBOL Xr|e%]!**
IDENTIFICATION DIVISION. h4>q~&Pd
PROGRAM-ID. HELLO-WORLD. Y-"7R>^I
7I@@}A
ENVIRONMENT DIVISION. `v Ebm Xb
A LR`z~1
DATA DIVISION. &nn+X%m9g
5[+E?4,&
PROCEDURE DIVISION. ]<o^Q[OL
DISPLAY "Hello, world!". d+7Dy3i|g=
STOP RUN. PrEfJ?
2\xEMec
tjDCfJx*
Common Lisp KJ6:ZTbW
(format t "Hello world!~%") &K,rNH'R
6~8X/
-02
G9c2kX.Bf
DOS批处理 c~Z\|Y`#B
@echo off |0N1]Hf
echo "Hello, world!" -~=:tn)0
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NK(; -~{P
Eiffel YjeHNPf
class HELLO_WORLD PKNpR
ddeH-Z
creation uI&<H T?
make IlP@a[:_
feature 9Or
make is l:"zYcp%
local (qy82F-|2
io:BASIC_IO x4S0C[k
do l`<u\],
!!io a)M#O\i`
io.put_string("%N Hello, world!") OD1>s6uA7
end -- make
\]p[DYBY#
end -- class HELLO_WORLD bQ_N^[oxQ
'sAs#
k/#321Z
Erlang zlN<yZB^
-module(hello). 8` f=Eh
-export([hello_world/0]). P'CDV3+
-]vPF|
hello_world() -> io:fwrite("Hello, World!\n"). <<ifd?
zE4TdT1y|
,~xX[uB
Forth 4>8'.8S
." Hello, world!" CR tv7A&Z)Rh
75#&hi/~
JlN<w
Fortran ' +[fJ> Le
WRITE(*,10) gJI(d6
10 FORMAT('Hello, World!') CXiSin
STOP >_um-w #C
END j.y8H
E6y ?DXWH
}Dc?Emb
HTML ;AK@Kb
<HTML> p7Q
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<HEAD> d+:pZ
<TITLE> Hello World! </TITLE> M8'
GbF=1
</HEAD> sAU!u
<BODY> 0hx EI
<p>Hello World!</p> niP/i
</BODY> \A9hYTC)
</HTML> p4'Qki8Hd
h;8^vB y
$P%b?Y/
HQ9+ f^[:w1X$sM
H 3XomnL{
#i~2C@]
hA_Y@&=W
INTERCAL By-A1|4Cp`
PLEASE DO ,1 <- #13 !9JK95;
DO ,1 SUB #1 <- #238 nd1%txIsr
DO ,1 SUB #2 <- #112 1k! xG$g0
DO ,1 SUB #3 <- #112 _;].
DO ,1 SUB #4 <- #0 ^qlfdf
DO ,1 SUB #5 <- #64 |LNAd:0
DO ,1 SUB #6 <- #238 j?rq%rQd
DO ,1 SUB #7 <- #26 ~%o?J"y
DO ,1 SUB #8 <- #248 $Sfx0?'
DO ,1 SUB #9 <- #168 \%D/]"@r
DO ,1 SUB #10 <- #24 h q&2o
DO ,1 SUB #11 <- #16 hJ1: #%Qe.
DO ,1 SUB #12 <- #158 XN1\!CM8
DO ,1 SUB #13 <- #52 .TTXg,8#D
PLEASE READ OUT ,1 rG|*74Q]
PLEASE GIVE UP g` QbJ61a
Vr=c06a2
U[ $A=e?\Y
Java N [iv.B
public class Hello ,5L[M&5
{ qhiO( !jK
public static void main(String[] args) OAiip,
{ g0BJj=
System.out.println("Hello, world!"); s&7,gWy}BE
} =5sUpPV(
} tu6Q7CjW8
Q]}aZ4L
d;D8$q)8Q
JSP N6BFs(
<% |
Djgm7$*
out.print("Hello, world!"); Kqt,sJ
%> _,JdL'[d
` E2@GX+,
i;
3^vhbQ
MIXAL 1Gojuey
TERM EQU 19 the MIX console device number y-iuOzq4
ORIG 1000 start address \y
G//
START OUT MSG(TERM) output data at address MSG eQUm!9)
HLT halt execution *[eh0$
MSG ALF "MIXAL" ,mE*k79L6
ALF " HELL" P`K?k<
ALF "O WOR" &91U(Go
ALF "LD " k*8
ld-O
END START end of the program .l->O-=
:>K=kZ=k
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Nuva ]`2=<n;=
<..直接输出..> 0{PRv./`
Hello, world! C?3?<FDL
B>CG/]
<..或者..> <d\Lvo[
9)a:8/Y
<. /k(KA [bS
// 不带换行 uZ-yu|1
? "Hello, world!" 6-@
X
Y!6,ty'
// 或者 ]~SOGAFW
m};Qng]
// 带换行 'o#ve72z1
?? 'Hello, world!' D#T1~r4
.> d +Vx:`tT
:{d?B$
$Y!$I.+
OCaml _[,oP s:+
let main () = 'Zdjd]
print_endline "Hello world!";; 1{sf Dw[s
/OpVr15
zd+_
BPT
Pascal ;MqH)M
program Hello; ly<1]jK
begin .I@jt?6X
writeln('Hello, world!'); 5ap~;t
end. ,h'q}5
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j z aC
Perl V(%L}0[]
#!/usr/local/bin/perl sz' IGy%
print "Hello, world!\n"; KMxP%dV/=
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lqO"
PHP {o?+T);Z
<?php HrUQ X4
print("Hello, world!"); D|u! KH
?> 0{/P1
f*VBSg[`
g9fS|T
Pike m8q3Pp
#!/usr/local/bin/pike 7[wHNJ7)r
int main() |Go?A/'
{ Cc?BJ
write("Hello, world!\n"); )19As8rL/o
return 0; LV'@JFT-
} idLysxN
QeYO)sc`
K0#kW \4`
PL/I asDq(J`sQ
Test: procedure options(main); 8#gS{
declare My_String char(20) varying initialize('Hello, world!'); lD;="b
put skip list(My_String); S
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end Test; BTXS+mvl
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qV%t[>
Prolog #OKzJ"g
goal nwk66o:|
write("hello,world!"). *TpzX
y
P<+5So0
KWVEAHIn
Python un4q,Ac~0
#!/usr/local/bin/python %rpJZ
t
print "Hello, world!" F)we^'X
6t0!a@t
%-y%Q.;k?
REXX %ec9`0^4S
say "Hello, world!" 47R4gs#W
OC|9~B1
/YbyMj*
Ruby oaI|A^v
#!/usr/bin/ruby aI$D
qnF4
print "Hello, world!\n" lF]cUp#<
U2*g9Es
?*}^xXI/
Scheme LFsrqdzJ
(display "Hello, world!") U!E
(newline) (vCMff/ Y1
B/S~Jn
\bze-|C
sed (需要至少一行输入) fUh7PF%
sed -ne '1s/.*/Hello, world!/p' D"WqJcDt
VJ`c/EVIt
z
z@;UbD"
Smalltalk 1]HEwTT/1_
Transcript show: 'Hello, world!' [C
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H[ 6L!
}QszOi\fV1
SNOBOL Yx21~:9}
OUTPUT = "Hello, world!" o2
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END ~429sT(
<#U9ih
2
sh []OSM
SQL ew(CfW2
create table MESSAGE (TEXT char(15)); ~{,U%B
insert into MESSAGE (TEXT) values ('Hello, world!'); |wASeZMO2
select TEXT from MESSAGE; ;P9P2&c8c
drop table MESSAGE; h)[{{JSf
9o<}*L
sd;J(<Ofh
Tcl &Q>)3] |p
#!/usr/local/bin/tcl GY@-}p~it
puts "Hello, world!" ;b=3iT-2"
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E5d?toZ,8"
TScript *u$MqN
? "Hello, world!" cd8~y
<}~`YU>=v
!`8WNY?K
Turing #}50oWE
put "Hello, world!" K1rF;7Y6
TqbDj|7`R
\\80c65-
UNIX-style shell jd9GueV*(
程序中的/bin/sh可改为您使用的shell -LF0%G
2BLcun
#!/bin/sh 7\sJ=*
echo 'Hello, world!' D8a[zXWnc
c+l1#[Dnc
DPuz'e*
GUI (VYY-%N`
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Delphi hLyD#XCFA
program HelloWorld; 6Q<^,`/T
uses (fmcWHs
Dialogs; -!uut7Z|
begin YNc]x>
ShowMessage('Hello, World!'); P+iZ5S\kL=
end. >}#h
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7Y$#*
7
Nuva W2L:
<. D9H(kk
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) TrxZS_
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d,}fp)
Visual Basic q\Cg2[nn2
MsgBox "Hello, world!" a []Iz8*6e
'或者 Ri]7=.QI`
Print "Hello, world!" ~~[Sz#(
2}Dd{kC-
YfBb=rN2s
Visual FoxPro '=!@s1;{[;
? "Hello, world!" (0s7<&Iu
LG6VeYe|\X
Pl_4;q!$
X11 Qq;` 9-&j
用一个程序 W=T3spV
5'f4=J$Z)
xmessage 'Hello, world!' Z$R6'EUb1
/\L|F?+@
用C++和gtkmm 2 H=E`4E#k
[%(}e1T(
#include <iostream> ]M
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#include <gtkmm/main.h> 'P{0K?{H-4
#include <gtkmm/button.h> Fw!wSzsk3
#include <gtkmm/window.h> Qmxe*@{`
using namespace std; 70,V>=aJ
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class HelloWorld : public Gtk::Window ^|^ek
{ :34#z.O
public: ;seD{y7!
HelloWorld(); -lHSojq~H
virtual ~HelloWorld(); RXa&*Jtr -
protected: L(a&,cdh
Gtk::Button m_button; P( >*gp
virtual void on_button_clicked(); hzIP ?0^E
}; {@Y|"qIN
h8;B +#f`
HelloWorld::HelloWorld() : m_button("Hello, world!") 6~8A$:
{ 1{N73]-M:
set_border_width(10); Wx#((T
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); <
aeBhg%
add(m_button); g z!q
m_button.show(); y+f@8]
} [Nb0&:$ay
OgJd^
HelloWorld::~HelloWorld() {} su]CaHU
lqFDX
d
void HelloWorld::on_button_clicked() ;cQhs7m(9
{ NpV#zzE
cout << "Hello, world!" << endl; (Fq|hgOA>M
} SH>L3@Za
Az4+([
int main (int argc, char *argv[])
nU]n]gd
{ B6)d2O9C
Gtk::Main kit(argc, argv); DQ7+
HelloWorld helloworld; USz|Rh
Gtk::Main::run(helloworld); ;xFx%^M}br
} n>]`8+a~%X
C"bG?Mb
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Java Fu4LD-#
import java.awt.*; ^lVZW8
import java.awt.event.*; @y%4BU&>0
K_/8MLJQ
public class HelloFrame extends Frame $qkVu
{ s%h|>l[lKT
HelloFrame(String title) 0r?975@A
{ Oo'IeXQ9(
super(title); Y<('G5A
} c$?(zt;
public void paint(Graphics g) tins.D
{ W- Q:G=S-
super.paint(g); #m_3ls}W$
java.awt.Insets ins = this.getInsets(); _t<D~
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); N
]/N}b
} q$)$?"
public static void main(String args []) +We_[Re`<
{ 0TA{E-A
HelloFrame fr = new HelloFrame("Hello"); DBDHe-1[+
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fr.addWindowListener( 40TS=evG
new WindowAdapter() tfzIem
{ xWk:7 ,/
public void windowClosing(WindowEvent e) %:I\M)t}k
{ ,~^0AtLv
System.exit( 0 ); eELJDSd
BV
} OO?d[7Wt0
} =O= 0 D
); :s8^nEK
fr.setResizable(true); K)z{R n
fr.setSize(500, 100); 6"@+Jz
fr.setVisible(true); 0* Ox>O>
} *a_U2}N
} MB]8iy8
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v ~|~&Dwq
Java Applet |l\&4/SJ
Java Applet用于HTML文件。 -#0(Jm'
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HTML代码: E6"+\-e
hLYy
<HTML> KU,KEtf
<HEAD> k
I{)"
<TITLE>Hello World</TITLE> l,cnMr^.W
</HEAD> ks92-%;:
<BODY> ~{Gbu oH
4 .7YIM
HelloWorld Program says: npsDy&