“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。 jNaK]
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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》。 G9N6iKP!
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以下是用不同语言写成的Hello World程序的几个例子: c:>&Bg&,6T
Ada lDCoYX_
with Ada.Text_Io; use Ada.Text_Io; _j}|R(s*+V
procedure Hello is vtCt6M
begin vbmi_[,U
Put_Line ("Hello, world!"); <^
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end Hello; la</IpC
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XcR2]\
汇编语言 9y>dDNM\<
GBHv| GO
x86 CPU,DOS,TASM b5No>U) /
MODEL SMALL ;} Ty b
IDEAL Z8z.Xn
STACK 100H x: `oqbd
P`@d8%*;
DATASEG ;&s`g
HW DB 'Hello, world!$' ?E^~z-
;R@zf1UYA
CODESEG "n}J6
MOV AX, @data )ra_`Qdcf
MOV DS, AX QO[!
MOV DX, OFFSET HW rt_%_f>qd
MOV AH, 09H F7Mf>."
INT 21H :~~}|Eu
MOV AX, 4C00H c/^}
=t(
INT 21H #i%it
END Kxn/@@z>u
;v^tUyhCb
i!*w'[G->Y
x86 CPU,GNU/Linux,NASM q}*(rR9/Br
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). jdK~]eld=
;Enter this into "hello.asm" then type: )c^Rc9e/
;"nasm -f elf hello.asm" =!GUQLS{
;"ld hello.o -o hello" K;k_MA310
;"./hello" /$|C s
4;<?ec(dc
section .data ;data section declaration W.r0W2))(
msg db 'Hello World!',0AH <ZSH1~<{6
len equ $-msg ;string length V\W?@V9g-
x{*g^f
section .text ;code section declaration d/v{I
global _start ;entry point (start of execution) SGXXv
_start: mov edx,len ;string length f<=<:+
mov ecx,msg ;string start S*Qip,u
mov ebx,1 ;file handle: stdout %\6|fKB4<
mov eax,4 ;sys_write :rk=(=@8`
int 80h ;kernel system call fINF;TK
qg7.E+
mov ebx,0 ;return value )M<"YI)g
mov eax,1 ;sys_exit -+Axa[,5=
int 80h ;kernel system call 9y{[@KG
q_bE?j{
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x86 CPU,Windows,MASM32 "1FPe63\*O
.386 DzydS=`w
.model flat,stdcall |`+kZ-M*
option casemap:none ]v(8i3P84
;Include 文件定义 0x7F~%%2
include windows.inc V(I!HT5.W
include user32.inc x$Y44v'>
includelib user32.lib t~U:Ea[gd
include kernel32.inc X; I:i%-
includelib kernel32.lib /2N'SOX
;数据段 G0oY`WXOB
.data 4wjy)VD_
szCaption db 'A MessageBox!',0 0{^@kxV
szText db 'Hello,world!',0 |5oK04<
;代码段 Px{Cvc
.code e/Wrm^]y
start: Ydm0
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK 6i|5`ZO
invoke ExitProcess,NULL x)N$.7'9OJ
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> )9I>y2WU~
end start Aslh}'$}-
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AWK Ir&rTGFN
BEGIN { print "Hello, world!" } q,`"Z)97
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BASIC @32~#0a
传统版BASIC(例如GWBASIC): 3*)<Y}Tc
w^OV;gp
10 PRINT "Hello, world!" R[KF${X4
20 END zmH8^:-x
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或在提示符输入: _&V%idz!0
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?"Hello, world!":END yHhx- `
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现代版BASIC(例如Quick BASIC): /kV3[Rw+
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Print "Hello, world!" 2-!OflkoM0
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以下的语句在Quick BASIC中同样有效: mApn[)?tv
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? "Hello,world!" Loz5[L
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c
aF*KY<w
BCPL s B!#`kh
GET "LIBHDR" L7i2is
-#<6
LET START () BE W>f q 9
$( \9"
WRITES ("Hello, world!*N") KuBN_bd
$) >QyJRMY
21NGsG
paKur%2u
Befunge 0RHKzk6~c
"!dlrow olleH">v ` 9;0Y
, ],`xd_=]=
^_@ 7egE."
aa|u*afWQ
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Brainfuck ] V|hDU=t
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< xgDd5`W
+++++++++++++++.>.+++.------.--------.>+.>. 0s9-`nHen|
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5k:SD7^b
C CD^C}MB
#include <stdio.h> YcQ$nZAU
I0iTa99K
int main(void) LR:PSgy
{ bn7"!6
printf("Hello, world!\n"); $Lj~ge3#
return 0; >+,w2m@0
} uqz HS>GM
rU6F$I=
C@x\ZG5rA
C++ s!k7Wwj
#include <iostream> `iHyGfm
PP*6nW8
int main() x[?N[>uw
{ [U5@m]>^
std::cout << "Hello, world!" << std::endl; JJ:p A_uX
return 0; KA
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} rX7GVg@H
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ak,KHA6u
C++/CLI %x'}aTa
int main() m:}PVJ-"
{ LTZ8Eu
System::Console::WriteLine("Hello, world!"); mM9a T0_w
} [^Z)f<l
2[!3!@.
u+/Uc:XK)
C# (C Sharp) {c
:7:
class HelloWorldApp 6a*?m{
{ J\@|c.ws
public static void Main() 'FNnFm
{ $-D}y:
System.Console.WriteLine("Hello, world!"); Yg/g9$'
} (rmOv\hG9V
} }VU^ 8D
^C=dq(i=[
Vc[aNpE
COBOL r'J="^k{
IDENTIFICATION DIVISION. jgvzp
PROGRAM-ID. HELLO-WORLD. X<%`
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ENVIRONMENT DIVISION. $e~MKLd
N#``(a
DATA DIVISION. ?rm3Iac0S
_:N=
PROCEDURE DIVISION. eOoqH$
i
DISPLAY "Hello, world!". i)iK0g"2
STOP RUN. vAh'6Ob7r
mjQZ"h0
3S 5`I9I
Common Lisp ! k[JP+;
(format t "Hello world!~%") *{_N*p\{
^h$^j
[vGkr" =
DOS批处理 (himx8Uml2
@echo off <x8I<K
echo "Hello, world!" &4O2uEW0
YpOcLxFL
5cvvdO*C0
Eiffel +\doF
class HELLO_WORLD |(%=zb=?X
tk)JE^'
creation nTtE+~u
make yk0tA
feature pG6?"*Fz;
make is |oWl9j]Z
local e#U@n
j6
io:BASIC_IO ;AG&QdTMh
do tj ?%{L
!!io r|63T%q!
io.put_string("%N Hello, world!") HA J[Y3d<
end -- make sYq:2Wn>8Q
end -- class HELLO_WORLD yV~TfTJ
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Erlang M}!
qH.W
-module(hello). n^q%_60H
-export([hello_world/0]). qyBC1an5,
'fs
tfk
hello_world() -> io:fwrite("Hello, World!\n"). PNz]L
>akC
ur:8`+"
(
Forth ?f$U8A4lp
." Hello, world!" CR -Qn l)JB
)Q 5 x%
dWx@<(`OC
Fortran VA>0Y
WRITE(*,10) p,V%wGM
10 FORMAT('Hello, World!') k|czQ"vaI
STOP )oALB vX
END =]r2;014
=H`yzGt
_dY5qW1p
HTML X
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<HTML> xnC:?d
<HEAD> @Di!~e6
<TITLE> Hello World! </TITLE> AdpJ4}|0
</HEAD> gg/ts]$
<BODY> U(PW$\l
<p>Hello World!</p> q;lR|NOh
</BODY> (rc7Cp3
</HTML> W}y)vrL
:?}mu1
.VR~[aD
HQ9+ ;PB_@Zg
H +1a3^A\
M&jlUr&l
{!j)j6(NY
INTERCAL L PS,\+
PLEASE DO ,1 <- #13 S&'?L0
DO ,1 SUB #1 <- #238 v}J0j
DO ,1 SUB #2 <- #112 aX~Jk >a0
DO ,1 SUB #3 <- #112 V.9p4k`
DO ,1 SUB #4 <- #0 7|o!v);uR
DO ,1 SUB #5 <- #64 k*u6'IKi.4
DO ,1 SUB #6 <- #238 \#PZZH%
DO ,1 SUB #7 <- #26 YV _ 7 .+A
DO ,1 SUB #8 <- #248 Qqi?DW1)-
DO ,1 SUB #9 <- #168 Z4X, D`s
DO ,1 SUB #10 <- #24 l1#.rg
DO ,1 SUB #11 <- #16 qqJghV$Oj
DO ,1 SUB #12 <- #158 M}j[{wW3
DO ,1 SUB #13 <- #52 JljCI@
PLEASE READ OUT ,1 5A$,'%d
PLEASE GIVE UP OTGy[jY"
Zb&pH~ 7
!g`I*ZE+e
Java w=CzPNRHH!
public class Hello p>O/H1US;
{ qDTdYf
public static void main(String[] args) D66NF;7q
{ fJP *RVz
System.out.println("Hello, world!"); &qK:LHhj
} :
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} gkX7,J-0
0Vrs bkS
{n&n^`Em
JSP {/(.Bpld
<% tot~\S
out.print("Hello, world!"); 6uv~.-T<l
%> QFnpp\K
+*w}H
0Z
)7]yzc
MIXAL FrUqfTi+W
TERM EQU 19 the MIX console device number /\_n5XI1
ORIG 1000 start address m[(_fOd
START OUT MSG(TERM) output data at address MSG BG8/
HLT halt execution E]8uj8K3]
MSG ALF "MIXAL" Ch3MwM5]
ALF " HELL" ]DU?N7J
ALF "O WOR" _Rb2jq(&0
ALF "LD " ML MetRP
END START end of the program qo$ls\[X
&XdTY +
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Nuva '
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<..直接输出..> }zS5o
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Hello, world!
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<..或者..> 7R7+jL,
Be6+YM5Cl
<. !yVY[
// 不带换行 *sZH3:
? "Hello, world!" Z:<an+v|5
-)B_o#2=2
// 或者 ?G,gPb
_;U%`/T b
// 带换行 n((A:b
?? 'Hello, world!' 6D[]Jf,9
.> >MKj~Ud
k0O5c[j
%LzARTX
OCaml _yUYEq<`
let main () = P[-do
print_endline "Hello world!";; *Ti"8^`6
_9t1aP5
;2\6U;
Pascal SE43C %hv
program Hello; "/RMIS
K[;
begin ~bm'i%$k
writeln('Hello, world!'); ^[r1Dk
end. qrp@
}IZw6KiN
*Ow2,{Nn
Perl W;cYg.W2
#!/usr/local/bin/perl 79cM_O
print "Hello, world!\n"; |0oaEd^*}
$Hj;i/zD
r#2Fk&Z9
PHP ~@Q]@8Tv\
<?php |dbKK\ X9
print("Hello, world!"); ;@Fb>lBhX
?> 4p-"1 c$
Dw7Xy}I/
Z)$@1Q4P?1
Pike ^9Cu?!xu0
#!/usr/local/bin/pike A7%/sMv
int main() 4oH ,_sr
{ :{ZwzJ
write("Hello, world!\n"); Q!qD3<?5
return 0; 1AN$s
} ppNMXbXR
s2NBYDi$?
c?EvrtND
PL/I 7(X
z%v
Test: procedure options(main); GM'yOJo
declare My_String char(20) varying initialize('Hello, world!'); '7PaJj=Nx
put skip list(My_String); G" E_4YkJ
end Test; s[y.gR.(
!&hqj$>-}
{QylNC9
Prolog mB"I(>q*M
goal t"YsIOT:O"
write("hello,world!"). !OY}`a(z
mICEJ\`x
ni%)a
Python ^i Jyo&I
#!/usr/local/bin/python 1=z[U|&R
print "Hello, world!" bKGX>
%-
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;>jEeIlT
REXX @`C'tfG/4
say "Hello, world!" L;$>SLl,
N'9T*&o+
t1o
6;rK
Ruby uOeal^uS
#!/usr/bin/ruby hEu_mw#
print "Hello, world!\n" o.A:29KoU
OVDuF&0
oV0 45G
Scheme &=jPt%7#M
(display "Hello, world!") _Iav2=0Wi
(newline) } v:YSG
Z s=A<[
uf#h~;B
sed (需要至少一行输入) )]FXUz|;
sed -ne '1s/.*/Hello, world!/p' I2}eFz&FE
?@,EGY<
Fc5t,P
Smalltalk *0^~@U
Transcript show: 'Hello, world!' F[Mwd &P@
jK]1X8
2{63:f1c`'
SNOBOL cI\[)5&
OUTPUT = "Hello, world!" z5]6"v-
END `}#rcDK
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SQL ?l?l<`sTO
create table MESSAGE (TEXT char(15)); _8u TK%|
insert into MESSAGE (TEXT) values ('Hello, world!'); 5kTs7zJ^
select TEXT from MESSAGE; *YeQCt-l
drop table MESSAGE; jBYvOy*$Q
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eN,9N]K
Tcl ga%\n!S
#!/usr/local/bin/tcl O8$~dzf,2
puts "Hello, world!" . waw=C
'Tjvq%ks
Ld}?da Pj
TScript b-VygLN
? "Hello, world!" !P=Cv=
VZWo.Br'W
*
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Turing [5?Dov^j3
put "Hello, world!" MVzuE}
G5/A{1sz&
GT<oYrjU
UNIX-style shell `_OrBu[
程序中的/bin/sh可改为您使用的shell 8A3/@Z;0S
#\lvzMjCC
#!/bin/sh `/>kN%
echo 'Hello, world!' ylZQwICk
>pfeP"[(3
J@I>m N1\
GUI F&czD;F
:IS?si5|
Delphi js81@WX!c
program HelloWorld; tjx8UgSi
uses hXjZ>n``
Dialogs; 1 6zxPSTr}
begin Ie.
on )
ShowMessage('Hello, World!'); fasWb&~z
end. +112{v=!i
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ct3i^,i
Nuva AuXUD9-
<. z.cDbkf}
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) CXuD%H]tx
.> Yn~fnI{
c{/R?<
gA(npsUHI
Visual Basic [_)`G*X(N
MsgBox "Hello, world!" 6AAvsu:
'或者 ;b0Q%TDh
Print "Hello, world!"
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hI86WP9*
F0U %m
Visual FoxPro }MRgNr'k
? "Hello, world!" 0#J~@1Gf
1z6aMd6.
Z\IM~-
X11 .pUB.l$)
用一个程序 lw9jk`7^
ZxnPSA@%
xmessage 'Hello, world!' \
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>+dSPI
用C++和gtkmm 2 et
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7@;*e=v
#include <iostream> 3k)xzv%r`
#include <gtkmm/main.h> =IMmtOvJ
#include <gtkmm/button.h> _h-agn4[i
#include <gtkmm/window.h> jum"T\
using namespace std; SF:98#pg
`Ow]@flLI
class HelloWorld : public Gtk::Window ; CCg]hX
{ FLMiW]?x
public: F6q=W#~
HelloWorld(); z[c8W@OJ
virtual ~HelloWorld(); ta)gOc)r
R
protected: 5?>4I"ne
Gtk::Button m_button; Ep;uz5 ^8
virtual void on_button_clicked(); l[T-Ak
}; )4ek!G]Rb
F+H]{ss>
HelloWorld::HelloWorld() : m_button("Hello, world!") v8f3B<kj
{ plWNuEW
set_border_width(10); oWY3dc
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); *B|hRZka1A
add(m_button); qB$-H' j:;
m_button.show(); s1 >8uW
} #7 O7O~
e` 4mrBtz|
HelloWorld::~HelloWorld() {} cn} CI
|M7C=z='
void HelloWorld::on_button_clicked() cj2Smgw&>
{ ]eGa_Ld
cout << "Hello, world!" << endl; n{4iW_/D
} zq</(5H
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int main (int argc, char *argv[]) fYP,V0P
{ A5Jadz~
Gtk::Main kit(argc, argv); Dr.eos4 ~
HelloWorld helloworld; ;I*t5{
Gtk::Main::run(helloworld); kc2B_+Y1
} t08U9`w
MM32\}Y6
M$EF 8
Java UmVn: a
import java.awt.*; <9pI~\@w
import java.awt.event.*; "QOQ
g4WmUV#wp
public class HelloFrame extends Frame D=a*Xu2zq
{ ;&j'`tP
HelloFrame(String title) )W\)kDh!
{ wnX;eU/n
super(title); O<s7VHj
} .\a+m
public void paint(Graphics g) |^ 8ND#x
{ 55O}S Us!P
super.paint(g); VjWJx^ZL#
java.awt.Insets ins = this.getInsets(); _K#7#qp2
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); 7%"|6dw
} U=D;CjAh
public static void main(String args []) DLbP$&o
{ k$%{w\?Jf
HelloFrame fr = new HelloFrame("Hello"); #eKKH]J/
a^&"gGg
fr.addWindowListener( }`
3-
new WindowAdapter() jF;<9-m&
{ jj&G[-"bv
public void windowClosing(WindowEvent e) *I?-A(e
{ -"xAeI1+
System.exit( 0 ); hXI[FICQU{
} %@:>hQ2;
} X40gJV<
); `S((F|Ty=;
fr.setResizable(true); z\tY A
fr.setSize(500, 100); Q+Nnj(AQY
fr.setVisible(true); @~2k5pa
} ]CP5s5
} A/=cGE
s&ox%L4
&G%AQpDW5
Java Applet i}LQ}35@
Java Applet用于HTML文件。 ^iEf"r
|h $Gs2
HTML代码: "#wAGlH6>
',hoe
<HTML> ?3N/#
<HEAD> wrJQkven-
<TITLE>Hello World</TITLE> Q3ZGN1aX<
</HEAD> :gRrM)n
<BODY> [UkcG9
nycJZ}f:wP
HelloWorld Program says: jF6Q:`k
mL1ZSX
o!
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> 1R-0b{w[
</APPLET> 1W*Qc_5 v1
?:vg`m!*
</BODY> wOL%otEf
</HTML> iOa<=
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Java代码: z]g#2xD2
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import java.applet.*; X{xkXg8h
import java.awt.*; ,Z|O y|+'
'(r?($s
public class HelloWorld extends Applet fQ~~%#z1
{ 5%(
public void paint(Graphics g) fX9b1x
{ ("A45\5
g.drawString("Hello, world!", 100, 50); =X'EDw
} ;woK96"{t
} 1Mq"f7X8
n\Is}Czl
mu0L_u(P
java script k7:ISjJ
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。 ,?U(PEO\f
>}.~Y#Ge
<script language="java script"> &z3_N
function helloWorld() (Ajhf}zJ
{ 7y&