“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。 VkXn8J
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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》。 ,"H?hFQ
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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=/^lOOO
Ada yWuIu>VJ
with Ada.Text_Io; use Ada.Text_Io;
,%8$D-4#_
procedure Hello is |[WL2<
begin ha>SZnKD{
Put_Line ("Hello, world!"); NcM3P G
end Hello; LDX y}hm)
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汇编语言 ua:9`+Dff
2}!R
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x86 CPU,DOS,TASM ULu O0\W
MODEL SMALL f?m5pax|
IDEAL 3N3*`?5c<
STACK 100H F*!gzKZ"
">,K1:(D
DATASEG [oJ& J>U'
HW DB 'Hello, world!$' ~Jxlj(" 0(
3Tw%W0q
CODESEG "i(U
MOV AX, @data |rFJ*.nD
MOV DS, AX w= B
MOV DX, OFFSET HW i6A$1(:h
MOV AH, 09H (xQI($Wq*M
INT 21H vC-[#]<
MOV AX, 4C00H iz(m3k:w
INT 21H x3_,nl
END 4V>vg2
d
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^@Y9!G=
x86 CPU,GNU/Linux,NASM fGo_NB
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). xpz`))w
;Enter this into "hello.asm" then type: "d:.*2Z2
;"nasm -f elf hello.asm" wH!}qz/
;"ld hello.o -o hello" 63SVIc~wT
;"./hello" k|fh\F+$
^X$
I= ro
section .data ;data section declaration 03] r*\
msg db 'Hello World!',0AH iPz1eUj
len equ $-msg ;string length nHE+p\
%qONJP
section .text ;code section declaration Zr5'TZ`$
global _start ;entry point (start of execution) *:(1K%g
_start: mov edx,len ;string length -z&9DWH
mov ecx,msg ;string start g8Ok ^
mov ebx,1 ;file handle: stdout Fz{o-4
mov eax,4 ;sys_write -5o?#%
int 80h ;kernel system call &8zk3
>[
@{$\?x:
mov ebx,0 ;return value YBR)s\*
mov eax,1 ;sys_exit $`ON!,oa
int 80h ;kernel system call y B1W>s8&
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h!Z Z2[
x86 CPU,Windows,MASM32 Xx=K?Z?3.
.386 fQ^h{n
.model flat,stdcall //VG1@vaVX
option casemap:none *
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;Include 文件定义 oC5gME"2
include windows.inc wHq('+{=&
include user32.inc
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includelib user32.lib Ty)gPh6O
include kernel32.inc (
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includelib kernel32.lib %
E<FB ;h
;数据段 ~4l6unCI
.data Z?5,cI[6#
szCaption db 'A MessageBox!',0 1OuSH+
szText db 'Hello,world!',0 ~Ay
;代码段 A)= X?x
.code }S
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start: f:)]FHPB1
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK V*0Y_ T{_
invoke ExitProcess,NULL ;""-[4C
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 0:~gW#lD
end start wI|bBfd(
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AWK #MmmwPB_
BEGIN { print "Hello, world!" } \z(>h&
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uOy\{5s8
BASIC LA( f]Xmc
传统版BASIC(例如GWBASIC): y}.y,\S0
D_L'x"
10 PRINT "Hello, world!" 9 ayH:;
20 END
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C={sE*&dYX
或在提示符输入: oZ|{J
:Map,]]B_
?"Hello, world!":END 4c493QOd
Br?++\
现代版BASIC(例如Quick BASIC): #CBo
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Print "Hello, world!" ePFC$kMn
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以下的语句在Quick BASIC中同样有效: [bQ8A(u
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? "Hello,world!" oQE_?">w
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BCPL `K ~>!d_
GET "LIBHDR" eFeCS{LV+
l% 3Q=c
LET START () BE Lt
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$( B@:XC&R^
WRITES ("Hello, world!*N") J0{WqA.P
$) l"V8n BR`
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Befunge q,19NZ
"!dlrow olleH">v U~QCN[gh
, L>K39z~,
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mYU dh L^
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Brainfuck }G0.Lq+a
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< *~MiL9m+?
+++++++++++++++.>.+++.------.--------.>+.>. 88X*:Kf?:
.>\>F{#~
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C IDVY2`sM
#include <stdio.h> GqF.T#|
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int main(void) y*TNJJ|
{ 9jJ/ RX p
printf("Hello, world!\n"); hghto
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return 0; QK/+*hr;
} Yi! >8
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C++ qS`|=5f
#include <iostream> cbHn\m)J,
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int main() ():?FJM
{ 8f`b=r(a>
std::cout << "Hello, world!" << std::endl;
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return 0; -X[8 soz
} mQ
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C++/CLI ^# g;"K0
int main() uL{~(?U $
{ e, 3(i!47
System::Console::WriteLine("Hello, world!"); &JQ@(w
} +53zI|I
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C# (C Sharp) hx;kEJ
class HelloWorldApp
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{ .6A:t?.
public static void Main() >WS&w;G
{ B*?PB]
System.Console.WriteLine("Hello, world!"); bB:X<
} Zkep7L
} SG o:FG
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&1C9K>
COBOL SX<mj
IDENTIFICATION DIVISION. "jJ)hk5e
PROGRAM-ID. HELLO-WORLD. L/+J|_J)
]6[d-$#^ko
ENVIRONMENT DIVISION. \@t5S
NB#*`|qt
DATA DIVISION. @ BW8`Ky1
1^>g>bn_"
PROCEDURE DIVISION. ?B!ZqJ#
DISPLAY "Hello, world!". 6OW-Dif^AG
STOP RUN. s;M*5|-
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oVsazYJ|?
Common Lisp >RnMzH/9
(format t "Hello world!~%") y5D?Bg|M
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meD (ja
DOS批处理
>U/g*[>
@echo off YYh_lAS>
echo "Hello, world!" F7l:*r,O
E\N=p&g$
bD-Em#>
Eiffel f)P/@rh
class HELLO_WORLD `R?W @,@'
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creation *?"{T;4u~O
make X($SBUS6
feature B9-[wg#0G
make is wKbymmG
local ;O11)u?/s|
io:BASIC_IO 9v2 ;
do .)zISa*Xy
!!io T$;XJx
io.put_string("%N Hello, world!") x@}Fn:c!5
end -- make (W!$6+GT
end -- class HELLO_WORLD a $%[!vF
tY=TY{ RY
*b_54X%3
Erlang jtY~-@*
-module(hello). =7,UqMl_
-export([hello_world/0]). O+j:L
)c !S@Hs
hello_world() -> io:fwrite("Hello, World!\n"). Q>ytO'v1
#wiP{+%b
LS;anNk@.}
Forth i`'^ zR(`i
." Hello, world!" CR -rlX<(pl)
D .`\ ^a
E%B Gf}h
Fortran KLW+&.re8
WRITE(*,10) 8l0
(6x$
10 FORMAT('Hello, World!') 2N 4>
STOP R?s\0
END .YF-t`{
):
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HTML 3PffQ,c[~
<HTML> t7FQ.E,T
<HEAD> eUlb6{!y?
<TITLE> Hello World! </TITLE> 1+($"$ZC&B
</HEAD> id'#s
<BODY> E2D8s=r
<p>Hello World!</p> wP"|$HN
</BODY> !*6z=:J
</HTML> s#ZH.z@J
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+to9].O7y
INTERCAL ts>}>}@vc
PLEASE DO ,1 <- #13 P^W47
SO
DO ,1 SUB #1 <- #238 Y'1V(5/&
DO ,1 SUB #2 <- #112 ^iS:mt
DO ,1 SUB #3 <- #112 |3ETF|)?
DO ,1 SUB #4 <- #0 _Qc\v0%
DO ,1 SUB #5 <- #64 K9'*q3z
DO ,1 SUB #6 <- #238 ped Yf{T
DO ,1 SUB #7 <- #26 *!@x<Hf<
DO ,1 SUB #8 <- #248 W[<":NX2
DO ,1 SUB #9 <- #168 vyGLn
DO ,1 SUB #10 <- #24 C/VYu-p%
DO ,1 SUB #11 <- #16 $uynW3h
DO ,1 SUB #12 <- #158 4LJ}>e
DO ,1 SUB #13 <- #52 1G.gPx[
PLEASE READ OUT ,1 rxeXz<
PLEASE GIVE UP 2tm-:CPG
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v=-3 ,C
Java Fxx2vTV4ag
public class Hello m-92G8'
{ Cbs4`D,
public static void main(String[] args) ^|(4j_.(e
{ + Z2<spqG
System.out.println("Hello, world!"); ^oO5t-9<!
} =c^=Yvc7U
} })vr*[
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D#}Yx]Q1
JSP dU^<7 K:S
<% _k.bGYldk
out.print("Hello, world!"); lILtxVBO2o
%> |ZlT>u
}_l
-'t
~(OIo7#;
MIXAL y]f^`2L!8>
TERM EQU 19 the MIX console device number e`M]ZGrr
ORIG 1000 start address k|Yv8+XT
START OUT MSG(TERM) output data at address MSG <`UG#6z8
HLT halt execution MYSc*G
MSG ALF "MIXAL" e -]c
ALF " HELL" I4f
ALF "O WOR" mKQST ]5
ALF "LD " ;s.5\YZ"k
END START end of the program rnv7L^9^A
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#IGoz|m
Nuva 05VOUa*pb
<..直接输出..> 3H}~eEg,
Hello, world! C2=iZ`Z>T
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<..或者..> Bx : So6:
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<. v&b.Q:h*'
// 不带换行 m|2]lb
? "Hello, world!" X$|TN+Ub
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// 或者
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L+~YCat|$U
// 带换行 jo;uR l
?? 'Hello, world!' m$E^u[
.> )y/DGSd
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OCaml W93JY0Ls9|
let main () = }EedHS
print_endline "Hello world!";; [cQ<dVaTX
l'7Mw%6{
)}Rfa}MD
Pascal Y=:KM~2hv
program Hello; S\3AW,c]w
begin I)XOAf$6
writeln('Hello, world!'); P"bknXL
end. lsB9;I^+x
dm,}Nbc91(
n-hvh-ZO
Perl ,jbGM&.C
#!/usr/local/bin/perl rWFcIh5
print "Hello, world!\n"; ksu}+i,a
Ev+HW x~Y
~3'RW0
PHP z;y^t4
^9
<?php <g3du~
print("Hello, world!"); %kK
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?> hg?j)jl|
bB:r]*_
s]
5@+4
Pike C(V[wvL
#!/usr/local/bin/pike mvHh"NJ
int main() W,HH *!
{ Q%& _On
write("Hello, world!\n"); \LdmGv@&
return 0; r=~WMDCz@
} RIy5ww}3|
r zM Fof
v[{8G^Z}54
PL/I +mfe*'AU
Test: procedure options(main); 4<G?
declare My_String char(20) varying initialize('Hello, world!'); j3x^<a\gJ
put skip list(My_String); jl.okWuiY
end Test; E0"10Qbi
aho'|%y)
ORGv)>C|
Prolog m~)Fr8Wh6
goal NP K#].F
write("hello,world!"). -{X<*P4p
q2x|%HRF
@br@[RpB
Python cGgM8
#!/usr/local/bin/python uY^v"cw/F
print "Hello, world!" P?9nTG
UL86-R!
dB@Wn!Y
REXX :s'o~
say "Hello, world!" L([E98fo
XR*Q|4
n"6;\
Ruby 4[TR0bM%
#!/usr/bin/ruby D==Mb~
print "Hello, world!\n" SVagT'BB
*5e+@rD`
rz%<AF Z
Scheme r[s!F=^
(display "Hello, world!") 9GgA 6#
(newline) K^zDNIQU
_tAQ=eBO
6 {}JbRNf
sed (需要至少一行输入) +R6a}d/K
sed -ne '1s/.*/Hello, world!/p' 3$VxRz)
MAqLIf<G
]u#JuX
Smalltalk Sw8kIC
Transcript show: 'Hello, world!' w5KPB5/zu
at6149B\)
u3J?bR
SNOBOL |Ps% M|8~
OUTPUT = "Hello, world!" ]JE TeZ^/
END :B|Dr
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V-!"%fO.s
SQL ,e`'4H
create table MESSAGE (TEXT char(15)); ?":'O#E
insert into MESSAGE (TEXT) values ('Hello, world!'); iWLa> z|,
select TEXT from MESSAGE; w,1Ii }d9
drop table MESSAGE; &\C [@_
EE=3
BVw Wj-,
Tcl -n5
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#!/usr/local/bin/tcl ]3Dl)[R
puts "Hello, world!" 7v7G[n
!@A#=(4R4
*[+)7
TScript >dzsQ^Nj
? "Hello, world!" b;GD/UI
a j\nrD1
"YU{Fkl#j
Turing &~e$:8+
put "Hello, world!" w}R~C
"xRBE\B
up'
UNIX-style shell LjB;;&VCn
程序中的/bin/sh可改为您使用的shell ]aryV?!6
6\jf|:h
#!/bin/sh ,)!u)wz
echo 'Hello, world!' *i{Y 9f8
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'b*%ixa
GUI '3IC*o"
3]&o*Ib1`_
Delphi ;a{ :%t
program HelloWorld; J?UQJ&!@O
uses I zbU)ud
Dialogs; COzyG.R.
begin ] b9-k
ShowMessage('Hello, World!'); 8vSse
end. 4_ v]O
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3@Z#.FV~C[
Nuva 7!y5
SX8C
<. ;Vik5)D2D
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) :'F}Dy
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fb~=Y$|
bwM@/g%DL
Visual Basic h7*W*Bd
MsgBox "Hello, world!" @~c6qh
'或者 l
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Print "Hello, world!" C98]9
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Ofm%:}LV
Visual FoxPro ~c)~015`
? "Hello, world!" "8^5>EJWv
~8"8w(CG*I
r78TE@d
X11 bl_H4
用一个程序 #P]#9Ty:
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xmessage 'Hello, world!' $]A/
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&Y^WP?HS
用C++和gtkmm 2 0JJS2oY/
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#include <iostream> n8DxB@DI
#include <gtkmm/main.h> INyk3`FT
#include <gtkmm/button.h> NwZ@#D#[ Y
#include <gtkmm/window.h> >G~R,{6U
using namespace std; >z.<u|r2
Ed
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class HelloWorld : public Gtk::Window J|w)&bV
{ S!sqbLrBn
public: 2[r^M'J
HelloWorld(); 78/N
virtual ~HelloWorld(); ]hbyELs
protected: Qx'`PNU9\
Gtk::Button m_button; w#g#8o>'
virtual void on_button_clicked(); 4sP2g&