“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。 U%rEW[ j
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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》。 Yr)<1.K4,M
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以下是用不同语言写成的Hello World程序的几个例子: 7TtDI=f
Ada B4/\=MXb
with Ada.Text_Io; use Ada.Text_Io; ()^tw5e'^
procedure Hello is +aQM %~
begin ~F"w
Put_Line ("Hello, world!"); kD46Le++B
end Hello; f4;V7DJ
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R
laRn![[
汇编语言 #EA` |
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x86 CPU,DOS,TASM uOAd$;h@_Z
MODEL SMALL ~KYA{^`*
IDEAL M 4E|^p=5
STACK 100H De
([fC
}ijFvIHV
DATASEG oD3]2o /
HW DB 'Hello, world!$' SFjR SMi
f"-3'kqo
CODESEG GJ\bZ"vDo
MOV AX, @data *+TO% {4
MOV DS, AX h$]nfHi_Q
MOV DX, OFFSET HW 14`S9SL{V
MOV AH, 09H eRm*+l|?
INT 21H /H*[~b
MOV AX, 4C00H 1*?XI
INT 21H ~^/BAc
END KBDNK_7A
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yu}T><Wst
x86 CPU,GNU/Linux,NASM
w~~[0e+E
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). q*<FfO=eQ
;Enter this into "hello.asm" then type: e$`;z%6y
;"nasm -f elf hello.asm" }XD=N#p@z
;"ld hello.o -o hello" 0.wNa~_G|
;"./hello" bE!z[j]
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section .data ;data section declaration vt#&YXu{A
msg db 'Hello World!',0AH zmg
:Z p=
len equ $-msg ;string length 1()pKBHf
qzWnl[3
section .text ;code section declaration +^q-v-
global _start ;entry point (start of execution) 'soll[J
_start: mov edx,len ;string length !jR 1!i
mov ecx,msg ;string start p'kB1)~|
mov ebx,1 ;file handle: stdout Jq:Wt+a
mov eax,4 ;sys_write q}]z8 L
int 80h ;kernel system call iow"X6_l_
Wb5n> *
mov ebx,0 ;return value N97WI+`
mov eax,1 ;sys_exit S]ed96V v
int 80h ;kernel system call )0\D1IFJ
"td ,YVK
'#Q\p6G&_
x86 CPU,Windows,MASM32 WtlLqD!_D
.386 &x3R+(H {
.model flat,stdcall b?-KC\}v
option casemap:none NftR2
;Include 文件定义 &<Fw
include windows.inc Ny$N5/b!!
include user32.inc _4LDzVjNRe
includelib user32.lib ?]\v%[ho
include kernel32.inc ybcCq]cgt
includelib kernel32.lib ,_bG'Hmt
;数据段 >&JS-jFg
.data #<5i/5&
szCaption db 'A MessageBox!',0 i'`>YX
szText db 'Hello,world!',0
eI/@ut}v
;代码段 'Uo|@tK
.code {3BWT
start: 6n^vG/.M
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK dW%;Z
invoke ExitProcess,NULL |H%,>r`9S
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> VO<P9g$UD
end start _o-01gu.
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AWK t?FPmbjv
BEGIN { print "Hello, world!" } 0BN=>]V~j7
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k^%F4d3z@C
BASIC W"g@*B'|
传统版BASIC(例如GWBASIC): }O:l]O`
qJK6S4O]
10 PRINT "Hello, world!" "4CO^ B
20 END ei
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Sj;:*jk!h
或在提示符输入: X1="1{8H
KS;Wr6]@(O
?"Hello, world!":END +2m\Sv V
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现代版BASIC(例如Quick BASIC): w"!zLB&9[
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Print "Hello, world!" |Gt]V`4
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以下的语句在Quick BASIC中同样有效: xKXD`-|W
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? "Hello,world!" m</nOf+C
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8cbgP$X
BCPL `3vt.b
GET "LIBHDR" ?r R,
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LET START () BE +|Mi lwr
$( ^ %x7:
WRITES ("Hello, world!*N") %loe8yt
$) [4HOWM>\
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vUgo)C#<
Befunge lLZ?&z$
"!dlrow olleH">v !{4bC
, tkEup&
^_@ =)2!qoE
ea!Znld]
\E,Fe:/g
Brainfuck yQ+C}8r5
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< lR3JyYY{X
+++++++++++++++.>.+++.------.--------.>+.>. J,^e q@(
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C D4ud|$s1
#include <stdio.h> xkkW?[&
' q{|p+
int main(void) m>-(c=3
{ oW8 hC
printf("Hello, world!\n"); 9h'klaE(
return 0; fu7J{-<<R
} 0V?:5r<
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C++ #'Lt_Yf!
#include <iostream> X"
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int main() .p(~/MnO
{ ceGo:Aa<)
std::cout << "Hello, world!" << std::endl; JS!
return 0; +vCW${U
} >-YWq
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s~Od(,K
C++/CLI F#$[jh$
int main() r2
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{ N;d@)h(N!
System::Console::WriteLine("Hello, world!"); *27*&&=)H
} :1\QM'O
WjvD C"
E cW$'>^
C# (C Sharp) cakb.Q
class HelloWorldApp ,-{2ai_
{ \%N |
X
public static void Main() p*Hbc|?{Q&
{ PEX(*GS
System.Console.WriteLine("Hello, world!"); c`h/x>fa
} C/x<_VJzN/
} (3+:/,{'$
sz%'=J~!V
I!sB$=n
COBOL -g]g
IDENTIFICATION DIVISION. &GH,is
PROGRAM-ID. HELLO-WORLD. R2$;f?;:
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ENVIRONMENT DIVISION. B?)=d,E
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DATA DIVISION. v(2|n}qY
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PROCEDURE DIVISION. ghd*EXrF
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DISPLAY "Hello, world!". 1f^4J~{
STOP RUN. C) "|sG
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B!cg)Y?.bd
Common Lisp fUgI*V
(format t "Hello world!~%") QR;E>eEq
'Nbae-pf
X#*|_(^
DOS批处理 ;n,@[v
@echo off @dj2#
echo "Hello, world!" RZeU{u<O
#]!0$z|Z
uM9[
Eiffel '9MtIcNb
class HELLO_WORLD Z;#Ei.7p|
-6KGQc}U
creation ki^c)Tqn
make 6{r^3Hz
feature yprf
`D>
make is tj_+0J$sw:
local &[hq !v
io:BASIC_IO 1>SCY_Cv
do 6n.W5
1g(s
!!io *M_Gu{xc
io.put_string("%N Hello, world!") 1MCHwX3/
end -- make j&.MT@
end -- class HELLO_WORLD FaNH+LPe
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{^xp?zpV
Erlang =-c"~4
-module(hello). >}*iQq
-export([hello_world/0]). pGy(JvMw"
&1DU]|RoT&
hello_world() -> io:fwrite("Hello, World!\n"). 5Q.bwl :
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nKJJ7 RL
Forth uYPdmrPB?l
." Hello, world!" CR bX:ARe
O
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Jk)^6
Fortran 0vs9# <&V
WRITE(*,10) q=5#t~?
10 FORMAT('Hello, World!') +FWkhmTv
STOP Gv!*
Qk4
END r2T-= XWB
/
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b0CtQe
HTML P{eL;^I
<HTML> hY.zwotH
<HEAD> |-hzvuSX
<TITLE> Hello World! </TITLE> #KonVM(`
</HEAD> rlvo&(a
<BODY> T6|zT}cb
<p>Hello World!</p> byYdX'd.
</BODY> {@u;F2?
</HTML> _-*Lj;^V
V=}b>Jo2j
9tVA.:FOZ
HQ9+ 9IKFrCO9,
H f!~gfnn
;wfzlUBC
Nt^R~#8hF>
INTERCAL r[zxb0YA
PLEASE DO ,1 <- #13 &WIiw$@
DO ,1 SUB #1 <- #238 GQTMQXn(
DO ,1 SUB #2 <- #112 b:Lp`8Du
DO ,1 SUB #3 <- #112 h$p]#]uMb
DO ,1 SUB #4 <- #0 H[guJ)4#@
DO ,1 SUB #5 <- #64 i6zfr|`@
DO ,1 SUB #6 <- #238 Zi=Nr3b
DO ,1 SUB #7 <- #26 ;$G.?r
DO ,1 SUB #8 <- #248 9}FWO&LiB
DO ,1 SUB #9 <- #168 3y%B&W,sm
DO ,1 SUB #10 <- #24 )DsC:cP
DO ,1 SUB #11 <- #16 kmM1)- v
DO ,1 SUB #12 <- #158 Z@=1-l
DO ,1 SUB #13 <- #52 wj/\!V!
PLEASE READ OUT ,1 (z0S5#g
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PLEASE GIVE UP =uZ[
nJ#uz:(w,
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Java s% "MaDz
public class Hello /a%5!)NE%
{ &,xN$
public static void main(String[] args) #N%xr'H
{ UfEF>@0
System.out.println("Hello, world!"); I=wP"(2
} 1O1/P,u+
} ?k~(E`ZE3
dF*@G/p>V
}+0{opY4R
JSP ;CD.8f]N
<% cs7TAX
out.print("Hello, world!"); 7z"xjA
%> ?yF)tF+<
Y&aFAjj
zR/d:P?
MIXAL >C~-*M9
TERM EQU 19 the MIX console device number D*Y4B?,
ORIG 1000 start address (b Q1,y
START OUT MSG(TERM) output data at address MSG @kUCc1LT
HLT halt execution g]R }w@nJ
MSG ALF "MIXAL" *ta
``q
ALF " HELL" NIeT.!
ALF "O WOR" 5 fjeBfy
ALF "LD " A1:<-TF6^p
END START end of the program t5#IiPp
o`HZS|>K*
IpmblC4
Nuva >v @R]9
<..直接输出..> @gQ{*dN
Hello, world! }.Ht=E]
JS r& S[
<..或者..> ywpk\
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<. L,| 60*
// 不带换行 u-3A6Q
? "Hello, world!" }s=D,_}m
jEsP: H(0^
// 或者 S,m)yh.
tK6z#)
// 带换行 d6-a\]gF
?? 'Hello, world!' ahA21W`k
.> z iR}
&,2h=H,M
7jT]J
OCaml 1q<BYc+z
let main () = {wRs V=*
print_endline "Hello world!";; |ul25/B
B
Mo|[Muj8b
<\GP\G
Pascal zME75;{
program Hello; Od70w*,
begin Z:W6@j-~
writeln('Hello, world!'); EA9`-xs|
end. >6Y\CixN
/=A?O\B7
('pNAn!]
Perl t\E#8
#!/usr/local/bin/perl %geiJ z
print "Hello, world!\n"; jXkz,]Iy
F6R+E;"4R'
uPc}a3'?
PHP ULqnr@/FbK
<?php 9(DS"fgC
print("Hello, world!"); $-m@cObw!.
?> \];0S4SBy
N"/jn_>+j
$Zp\^cIE+
Pike bsy\L|wd
#!/usr/local/bin/pike uyMxBc%6
int main() qc\]~]H]r
{ " m<]B
write("Hello, world!\n"); LO<R<zz
return 0; a}ogNx
} &U ]L@]x
xtYX}u
c1M/:*?%
PL/I {A]"/AC
Test: procedure options(main); 72R|zR
declare My_String char(20) varying initialize('Hello, world!'); ik)T>rYg0
put skip list(My_String); I~?D^
end Test; ^{nf0 )56c
7N,E%$QL
B)g7MG
Prolog T;qP"KWZ
goal /)Bk
r/
write("hello,world!"). \\XvVi:B
ra=U,
.'JO7of
Python _Q,`Qn@|BD
#!/usr/local/bin/python fqA\Rp6Z
print "Hello, world!" U|.kAI*
Ahk6{uz
Y~#m-y
REXX <7R\#
say "Hello, world!" A ><
u8L%R[#o
YKKZRlQo
Ruby hRTw8-wy:
#!/usr/bin/ruby NpqMdd
print "Hello, world!\n" B-PN +P2
-/rP0h5#
{J;[
Hf5
Scheme x9q?^\x
(display "Hello, world!") @S\!wjl]C
(newline) Ya{$:90(4
bHRH2Ss
4Ra
sed (需要至少一行输入) 2 %UzCK
sed -ne '1s/.*/Hello, world!/p' "C %<R
Q.X)QCp#r
b{JcV
Smalltalk |`[0U
Transcript show: 'Hello, world!' 2\80S[f
}A,9`
8&<C.nKP
SNOBOL F,+nj?i!
OUTPUT = "Hello, world!" =n.d'
END #v+2W
a)w
*
@v&hr
SQL )(yD"]co
create table MESSAGE (TEXT char(15)); "j-Z<F]]
insert into MESSAGE (TEXT) values ('Hello, world!'); ;:2]++G
select TEXT from MESSAGE; F!.Z@y P
drop table MESSAGE; +.^BM/z^O
t4(Z@X$
+*&bgGhT
Tcl pFb}5Q
#!/usr/local/bin/tcl j<|I@0
puts "Hello, world!" -P#PyZEH&I
Ahl-EVIr<
4.Luy
TScript -{[5P!
? "Hello, world!" .kKU MyW(
r Q)?Bhf
ZLm?8g6-
Turing nk=+6r6
put "Hello, world!" 2$ m#)*\
%f3qCN
\Gm$hTvB&
UNIX-style shell Ok63 w7
程序中的/bin/sh可改为您使用的shell qj|P0N{7
v$~1{}iI5
#!/bin/sh Ai>=n;
echo 'Hello, world!' iQs^2z#Bd
&w15GO;4
I)7STzlMj.
GUI V$wW?+V
2OT
RP4U
Delphi 6L5j
program HelloWorld; ]mIcK
uses 8i$quHd&x
Dialogs; i/UDda"E
begin J:W|2U="
ShowMessage('Hello, World!'); E%Tpby}^'
end. 4-j3&(
})#VO-J
T($d3Nn1
Nuva uBpnfIe
<. 7\(mn$
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) :c75*h`
.> rdj_3Utv
fv@mA --
3an9Rb V
Visual Basic YA+jLy6ZL
MsgBox "Hello, world!" 9ZXkuP9vm
'或者 arVu`pD*n
Print "Hello, world!" ki|KtKAu_9
LAs#g||M
@6["A'h
Visual FoxPro *LuR
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