“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。 )5w# n1
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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》。 9eEA80i7
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以下是用不同语言写成的Hello World程序的几个例子: O;m [
Ada RM#.-gW
with Ada.Text_Io; use Ada.Text_Io; )zu m.6pT
procedure Hello is \:E=B1
begin OhTd>~R`<
Put_Line ("Hello, world!"); GP_%.fO\M
end Hello; U[NQ"
__[bKd.
;ApldoMi
汇编语言 % E8s>D
DS0:^TLI
x86 CPU,DOS,TASM 9a]h;r8,9z
MODEL SMALL T*](oA@
IDEAL 7mnZ,gpb
STACK 100H ,{BF`5bn|
S(G&{KG
DATASEG -"}nm!j /5
HW DB 'Hello, world!$' 2cko
GafG{
"
l >tFa
CODESEG _A6e|(.ll
MOV AX, @data GW0e=Y=LR
MOV DS, AX nS]Ih 0(K
MOV DX, OFFSET HW o^+g2;Ro
MOV AH, 09H +7j7zpw
INT 21H OK%d1M^8j
MOV AX, 4C00H vGD D
INT 21H FH7l6b,^
END lD,;xuQ
dI~{0)s
+lw1v
x86 CPU,GNU/Linux,NASM l42tTD8Awz
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). \!zM4ppr
;Enter this into "hello.asm" then type: YeB)]$'?u`
;"nasm -f elf hello.asm" /,JL \b
;"ld hello.o -o hello" 8!qzG4F/
;"./hello" !uAqY\Is
|yi#6!}^
section .data ;data section declaration W&e}*
msg db 'Hello World!',0AH `$ZBIe/u
len equ $-msg ;string length h4=7{0[
3j/~XT
section .text ;code section declaration wPr!.:MF
global _start ;entry point (start of execution) 5N$O
_start: mov edx,len ;string length Nj+gSa9
mov ecx,msg ;string start d ZxrIWx
mov ebx,1 ;file handle: stdout AIt;~x
mov eax,4 ;sys_write R'h.lX
int 80h ;kernel system call }W
nvz;]B
:F?L,I,K
mov ebx,0 ;return value 'J_6SD
mov eax,1 ;sys_exit :F
pt>g
int 80h ;kernel system call ah15,<j
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1a'0cSH
x86 CPU,Windows,MASM32 oTk?a!Q
.386 8 G:f[\^
.model flat,stdcall O{wt0 \P
option casemap:none 'h `)6{
;Include 文件定义 H+ 7Fw'u
include windows.inc YeVkX{y
include user32.inc >?r8D48`
includelib user32.lib $uYfy<
include kernel32.inc 0[7tJbN
includelib kernel32.lib !^qpV7./l
;数据段 lnt}l
.data #BhcW"@
szCaption db 'A MessageBox!',0 U]
av{}U
szText db 'Hello,world!',0 M6z$*?<
;代码段 Imz1"+E~
.code C ,[q#D4
start: sdXZsQw
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK FXFyF*w2
invoke ExitProcess,NULL 1_5]3+r_U-
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> b}Wm-]|+
end start t`'5|
mZ#h p}\.
b$=c(@]
AWK -02.n}u>
BEGIN { print "Hello, world!" } !">EZX
mC./,a[
+/!y#&C&*
BASIC kB]*2o9-3
传统版BASIC(例如GWBASIC): ONm-zRx|
Lo5CVlK
10 PRINT "Hello, world!" >JT^[i8[
20 END R)'[Tt`# R
]TSzT"_r~~
或在提示符输入: |/~ISB
pU[5f5_
?"Hello, world!":END 3(=QY)
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现代版BASIC(例如Quick BASIC): $B?IE#7S4
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Print "Hello, world!" K'S\$
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以下的语句在Quick BASIC中同样有效: }W5~89"
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? "Hello,world!" .pPtBqp
c!J|vRA5
-Rj3cx
BCPL f- ~]
GET "LIBHDR" k5eTfaxl
-5<G^AS
LET START () BE $(&+NJ$U$
$( }Ih5`$
WRITES ("Hello, world!*N") _t@9WA;+\
$) aHBM9 %gV
YAYwrKt
R|R3Ob.e
Befunge {h~<!sEX
"!dlrow olleH">v Y&1Yc)*O
, QHw{@*
^_@ bipA{VU
? io,8
![/ QW
Brainfuck lCJ/@)
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< A4f;ftB
+++++++++++++++.>.+++.------.--------.>+.>. gv/yfiA?
RKwuvVI
u~\ NL{
C DXx),?s>
#include <stdio.h> ad`=A V ]
Jek3K&
int main(void) |#x]/AXa0/
{ F7U$7(I2G
printf("Hello, world!\n"); HC(o;,spO
return 0; %DuSco"
} `a]feAl
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i
z
dJ,8
C++ ;Wig${
#include <iostream> ~uh,R-Q$
>^Y)@J
int main() h#]LXs
{ \\$wg
std::cout << "Hello, world!" << std::endl; K"g`,G6S
return 0; Y$nI9
} .oz(,$CS"
e\ O&Xe
V; 1i/{
C++/CLI a'B 5m]%
int main() ./Wi(p{F
{ <*5` TE0J
System::Console::WriteLine("Hello, world!"); yI8
/m|
} Tizjh&*^
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C# (C Sharp) hSU|rVi
class HelloWorldApp Qd"u$~ qC
{ UszR. Z
public static void Main() XMm(D!6
{ vL~j6'
System.Console.WriteLine("Hello, world!"); +*KDtqZjk
} S<"`9r)av
} BnIZ+fg=
+V/m V7FK
}BLT2]y0
COBOL ]M/*Beh
IDENTIFICATION DIVISION. .*+e?-
PROGRAM-ID. HELLO-WORLD. 81Ityd-}
sr`)l& t?
ENVIRONMENT DIVISION. Nt_7Z
7.7Z|lJ
DATA DIVISION. e7JZk6GP#9
s78V \Vw3
PROCEDURE DIVISION. ?Fj>7
DISPLAY "Hello, world!". yNN_}9
STOP RUN. y jY}o
7"$9js 2
21.N+H'
Common Lisp 3k5F$wf
(format t "Hello world!~%") $/;<~Pzi
e%.|PZ)
HD9+4~8
DOS批处理 Q)l~?Fx
@echo off 6Z68n
echo "Hello, world!" Ar1X
mHq
XOd
vAo|o*
Eiffel @BS7Gyw
class HELLO_WORLD
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.DZ8kKY
creation )GF>]|CG
make Dp"
xO<PE2
feature eHHqm^1z
make is * AjJf)o
local cO/.(KBF
io:BASIC_IO C}cYG
do R#33ACCX
!!io F)4;:".zna
io.put_string("%N Hello, world!") "uHU!)J#z
end -- make 6sl2vHzA
end -- class HELLO_WORLD b2HHoIT
C4
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Erlang 4z^5|$?_ta
-module(hello). :H`Z.>K
-export([hello_world/0]). h6C:`0o
Kgu#Mi~
hello_world() -> io:fwrite("Hello, World!\n"). !nyUAZ9 :
iXFN|ml
`=rDB7!$yL
Forth !Zma\Ip
." Hello, world!" CR %2`geN<
wNhtw'E8
g)#.|d+
Fortran l?swW+x\
WRITE(*,10) O5 ?3nYHa
10 FORMAT('Hello, World!') !:w&eFC6
STOP
h@"u==0
END zwpgf
Fg-4u&Ik
a]8}zSUK
HTML {1]/ok2k5
<HTML> UA$Xa1
<HEAD> &?j]L4%
<TITLE> Hello World! </TITLE> ?^W`7H F%0
</HEAD> pG9qD2Cf
<BODY> gCc::[}\Y
<p>Hello World!</p> TNK~ETE4
</BODY> S#l6=zI7^R
</HTML> 0xe*\CAo
kmfxk/F}
5Bog\m S
HQ9+ r-k,4Yz
H XH{P@2~l
)A H)*Mg
r2; )VS
INTERCAL 2v9T&xo=
PLEASE DO ,1 <- #13 cpg+-Zf%
DO ,1 SUB #1 <- #238 Af{K#R8!
DO ,1 SUB #2 <- #112 !$|h[ct
DO ,1 SUB #3 <- #112 o
9] 2
DO ,1 SUB #4 <- #0 !w-`:d?
DO ,1 SUB #5 <- #64 YR}
P;
DO ,1 SUB #6 <- #238 @&LtIN#
DO ,1 SUB #7 <- #26 -Rz%<`
DO ,1 SUB #8 <- #248 biw2f~V
DO ,1 SUB #9 <- #168 [n{c, U
F
DO ,1 SUB #10 <- #24
*^b<CZd9
DO ,1 SUB #11 <- #16 ;fnE"}
DO ,1 SUB #12 <- #158 lH8e?zJ
DO ,1 SUB #13 <- #52 8{iFxTz
PLEASE READ OUT ,1 { WW!P,w
PLEASE GIVE UP N
J_#;t#j
tyyfMA?'L;
0?d}Oj
Java 5u3SP?.&
public class Hello
]6 ]Nr
{ .B|a.-oA4
public static void main(String[] args) M<"H1>q@
{ Af%#&r7W
System.out.println("Hello, world!"); 8mpoY.E4!
} Z>+Tzvfud
} bTN0 n
?3)
IzzO
?IHa>f:
JSP MY `V0
<% JK@"
&
out.print("Hello, world!"); <.qhW^>X
%> R"
'=^
_pS!sY~d
7y2-8eL
MIXAL L-v-KO6
TERM EQU 19 the MIX console device number c (Gl3^
ORIG 1000 start address Q!_@Am"h
START OUT MSG(TERM) output data at address MSG o#ajBOJ
HLT halt execution `tb@x ^
MSG ALF "MIXAL" KJ&~z? X
ALF " HELL" KeiPo KhZi
ALF "O WOR" :VEy\ R>W
ALF "LD " xp<p(y8e1d
END START end of the program DeTD.)pS
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|w7D&p$
Nuva ~'aK[3
<..直接输出..> ek3,ss3
Hello, world! ^w*$qzESy
Zc Y* TGx
<..或者..> '5BM*4,:O
Oe^oigcM
<. vx&jI$t8
// 不带换行 A(#4$}!n5
? "Hello, world!" *f4BD||
+W-,74A
// 或者 IFg(Ze~
hi(uL>\
// 带换行 +,BJ4``*k
?? 'Hello, world!' Wk"\aoX"E
.> _x ;fTW0
OY>0qj
'K0=FPB/@
OCaml 4M4oI .
let main () = BDCFToSf|
print_endline "Hello world!";; 3+v+_I>%k
LG
qg0(
Mkc|uiT
Pascal 9/nS?>11
program Hello; S@'yuAe*G
begin R:LThFx
writeln('Hello, world!'); B1C"F-2d
end. ~>]/1JFz
WKwU:im
m{)F9F
Perl c8
xZT
#!/usr/local/bin/perl d].(x)|st
print "Hello, world!\n"; pd1V8PZSG
#g6*s+Gm
VP<_~OLc
PHP vKvT7Zxc
<?php u3>Dvl@
print("Hello, world!"); s{]2~Z^2od
?> a#qC.,$A
gqi|k6V/
MSMgaw?
Pike ee=d*)
#!/usr/local/bin/pike <&$:$_ah
int main() mq(*4KFWJ2
{ ]ZjydQjo)
write("Hello, world!\n"); pzPm(M1^X
return 0; l"-F<^
U
} lVmm`q6n9
]_ON\v1
[H!8m7i;
PL/I zU7/P|Dw+
Test: procedure options(main); iq!u}# x_
declare My_String char(20) varying initialize('Hello, world!'); 07?| "c.
put skip list(My_String); /4f4H?A -
end Test; 3;h%mkKQ+
\D]H>i$
o|v_+<zD!
Prolog 8@f=GJf
goal e{dYLQd
write("hello,world!"). 'Wn2+pd
@]EJbiGv
6,*o;<k[
Python l{7q(
#!/usr/local/bin/python kZsat4r
print "Hello, world!" _Zq2 <:
@sV6g?{tI
*
@QC:1k
REXX ]} +
NT
say "Hello, world!" '{t&!M`
}Z~& XL=
AxOn~fZ!
Ruby hu
G]kv3F:
#!/usr/bin/ruby {I2qnTN_a
print "Hello, world!\n" 6IVa(;
\Q5Jg
-zq_W+)ks
Scheme Z3)l5JG)
(display "Hello, world!") ezC2E/#
(newline) QF7iU@%-
F^v <z)x
>$.lM~k
sed (需要至少一行输入) LJ+fZ
N
sed -ne '1s/.*/Hello, world!/p' f0^DsP
iYyJq;S
B tZycI
Smalltalk uH 6QK\
Transcript show: 'Hello, world!' 0PK*ULwSN
3r)<:4a
u&
%e@Jc3
SNOBOL !/6`<eQ
`
OUTPUT = "Hello, world!" {M5[gr%
END Y-.pslg
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FTihxC?.L
SQL jM E==)Y
create table MESSAGE (TEXT char(15)); 1i.t^PY
insert into MESSAGE (TEXT) values ('Hello, world!'); <R6$ kom`
select TEXT from MESSAGE; Rw54`_kFEB
drop table MESSAGE; t/= xY'7
7%-+7O 3ud
l~/g^lN
Tcl ~vVsxC$.
#!/usr/local/bin/tcl R9/(z\'}
puts "Hello, world!" O=HT3gp&
jH1!'1s|
c&+p{hH+
TScript X\I"%6$
? "Hello, world!" drJ<&1O
Uv(THxVh
SLa\F
Turing s4$Z.xwr
put "Hello, world!" BJM_kKH
oM=Ltxv}
xJvM
l`2;
UNIX-style shell QT5,_+ho
程序中的/bin/sh可改为您使用的shell v$O%U[e<
\`|*i$
#!/bin/sh A&$oiLc
echo 'Hello, world!' `g;`yJX<
H)s$0Xd
Tn~b#-0
GUI S
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.{-&3++WZ
Delphi a8#6}`|C?
program HelloWorld; `dH[&=S
uses ^cE|o&Rm;
Dialogs; y]
Io`w(>
begin 24TQl<H{
ShowMessage('Hello, World!'); $)5F3a|
end. =%4vrY
`
K%) K$/A
_?M71>3$.
Nuva s
uT#k3
<. uZe|%xK$y
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) u0;FQr2
.> 3w=OvafT:
k+au42:r
t?1+Yw./em
Visual Basic Zhl}X!:c?\
MsgBox "Hello, world!" \\F@_nB,b
'或者 a'LM6A8~x
Print "Hello, world!" L6^Qn%:OTd
N5ityJIgQ
[dje!5Dc(
Visual FoxPro A6APU><dm^
? "Hello, world!" tN'-4<+
p/|":(U
Z|YiYQl[)
X11 cO,ELu
用一个程序 j5*W[M9W
;:JTb2xbb
xmessage 'Hello, world!' v2>.+Eh#
5I!EsW$sY
用C++和gtkmm 2 SBBDlr^P
e}u#:ysj
#include <iostream> OPp>z0p%6X
#include <gtkmm/main.h> *&b~cyC
#include <gtkmm/button.h> aZ%
#include <gtkmm/window.h> o2cZ
using namespace std; k%iZ..
C:77~f-+rQ
class HelloWorld : public Gtk::Window 9/rX%
{ X\?e=rUfn
public: w<?v78sT
HelloWorld(); Hq.ys> _
virtual ~HelloWorld(); qB`zyd8yu
protected: #`tn:cP
Gtk::Button m_button; g?qh
virtual void on_button_clicked(); wl1JKiodg
}; bgW=.s
E>j*m}b
HelloWorld::HelloWorld() : m_button("Hello, world!") fr~e!!$H
{ $?^#G8J
set_border_width(10); ?@"B:#l
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); #GBe=tm\K
add(m_button); 8~QEJW$
m_button.show(); #P,mZ}G\
} BJgg-z{Y
IS;F9{
HelloWorld::~HelloWorld() {} [KIK}:
-G<$wh9~3
void HelloWorld::on_button_clicked() l4oI5)w
{ @\,WJmW
cout << "Hello, world!" << endl; V j\1HQ
} :eQ?gM!,
>b>3M'
int main (int argc, char *argv[]) ='1J&w~7
{ :IFTiq5a;
Gtk::Main kit(argc, argv); -1ke3
HelloWorld helloworld; a}3sG_(Y
Gtk::Main::run(helloworld); )NeI]p
} VmLV:"P}^
AP=mj
|A_yr/f
Java OO..
Y
import java.awt.*; "^j&
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import java.awt.event.*; Z~}=q
M{S7tMX
public class HelloFrame extends Frame 30 VvZb
{ k~ #F@_
HelloFrame(String title) >W,1s
{ \BC|`)0h
super(title); h>,yqiY4p
} "j5b$T0P>
public void paint(Graphics g) @q9uU9c
{ &:g5+([<