“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。 H6&7\Wbk
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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》。 pQMtj0(y
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以下是用不同语言写成的Hello World程序的几个例子: ,`32!i
Ada y:d{jG^
with Ada.Text_Io; use Ada.Text_Io; @m~RtC-Q
procedure Hello is B6]<G-
begin o%[U
Put_Line ("Hello, world!"); &.Q8Mi
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end Hello; PmR* }Aw
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at|g%$%
汇编语言 b.F^vv"]]
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x86 CPU,DOS,TASM LZ U$
MODEL SMALL W0XF~
IDEAL :jEPu3E:
STACK 100H LO:fJ{ -
?":'O#E
DATASEG !:CJPM6j3
HW DB 'Hello, world!$' 8' K0L(3[
npp[@*~
CODESEG ^j )BKD-
MOV AX, @data }LP!)|E
MOV DS, AX 9}29&O
MOV DX, OFFSET HW %."@Q$lA
MOV AH, 09H in-C/m#
INT 21H wGsRS[
MOV AX, 4C00H k(%QIJH
INT 21H 7v7G[n
END x;\wY'
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x86 CPU,GNU/Linux,NASM `^9(Ot $
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ?!VIS>C(
;Enter this into "hello.asm" then type: Pw0Ci
;"nasm -f elf hello.asm" AVw%w&|%
;"ld hello.o -o hello" ,8MLoZ_
;"./hello" \5)h tL1F
Xz 4 x
section .data ;data section declaration qTQ!jN
msg db 'Hello World!',0AH *e#<n_%R
len equ $-msg ;string length QK`i%TXJ
$ (=~r`O+1
section .text ;code section declaration 7piuLq+
global _start ;entry point (start of execution) ]aryV?!6
_start: mov edx,len ;string length sZ<9A Xk-E
mov ecx,msg ;string start M$Zo.Bl$(
mov ebx,1 ;file handle: stdout AJ^#eY5
mov eax,4 ;sys_write )yK[ Zb[
int 80h ;kernel system call 8qEK+yi,
ra N)8w}-
mov ebx,0 ;return value A'&n5)tb
mov eax,1 ;sys_exit ;Lm=dd@S:
int 80h ;kernel system call x35cW7R}T_
#-% A[7Cdp
sOCs13A"
x86 CPU,Windows,MASM32 YW\0k5[
.386 X[gn+6WB%
.model flat,stdcall 6x)$Dl
option casemap:none gb=/#G0R
;Include 文件定义 `(6r3f~XJ
include windows.inc CzCQFqXI
include user32.inc 8vSse
includelib user32.lib >>i@r@
include kernel32.inc bI)u/
includelib kernel32.lib [+m?G4[
;数据段 G`fC/Le
.data l1U=f]
szCaption db 'A MessageBox!',0 .`<@m]m-
szText db 'Hello,world!',0 &UCsBqIY
;代码段 @+F4YJmB?l
.code >odbOi+X
start: %1 vsN-O}8
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK h:zK(;
invoke ExitProcess,NULL 54-#QIx|
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> +ISz?~8
end start #GDe08rOw
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RB* J=
AWK r_e7a6
BEGIN { print "Hello, world!" } ^EG\iO2X
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BASIC $N:Vo(*
传统版BASIC(例如GWBASIC): :1XtvH
\)K^=jM
10 PRINT "Hello, world!" VhjM>(
20 END m-^8W[r+_
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Nd
或在提示符输入: a22Mufl
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?"Hello, world!":END -/{4Jf Wf
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现代版BASIC(例如Quick BASIC): 8:BIbmtt5
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Print "Hello, world!" Yt|6
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以下的语句在Quick BASIC中同样有效: O=SkAsim
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? "Hello,world!" F:y[@Yn
s&\I=J.
Y6,Rj:8
BCPL JpsPNa
GET "LIBHDR" c wg
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WD Fjp
LET START () BE `n$5+a+
$( p.+ho~sC,.
WRITES ("Hello, world!*N") yV_4?nh
$) S=_vv)6+4
w
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nhIa175'
Befunge vad12WrG<
"!dlrow olleH">v >.dWjb6t
, \J+*
^_@ "4vy lHIo
*@d&5
3~nnCR[R
Brainfuck T\w?$ s
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 1x,[6H
+++++++++++++++.>.+++.------.--------.>+.>. o9cM{ya/>
ui (^k $
dnV[ P
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#include <stdio.h> lA>DS#_
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int main(void) Q{B}ef
{ &\apwD
printf("Hello, world!\n"); }$bF
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return 0; J|&JD?
} #j *d^j&
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C++ 5)
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#include <iostream> ;FZ@:%qDm
tv!_e$CR
int main() Gs3LB/8?
{ uYE`"/h,1e
std::cout << "Hello, world!" << std::endl; YZ%Hu)
return 0; pv&y91
} SM`w;?L:?
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w`q%#qRk
C++/CLI H,N)4;F<c
int main() i;!H!-sM
{ IpP~Uz
System::Console::WriteLine("Hello, world!"); X/N0LU(q
} X^WrccNX
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C# (C Sharp) -!c"k}N=
class HelloWorldApp qIld;v8w"g
{ Yv:55+ e!|
public static void Main() bf9a1<\
{ $V1;la!
System.Console.WriteLine("Hello, world!"); E*jP8 7g
} JwJ7=P=c
} d6W SL;$
Q'%PNrN
C`5
COBOL /% kY0 LY
IDENTIFICATION DIVISION. JGuN:c$
PROGRAM-ID. HELLO-WORLD. ~i `>adJ:
-&<Whhs.@
ENVIRONMENT DIVISION. :UQTEdc{
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DATA DIVISION. e^O(e
tO0!5#-VR
PROCEDURE DIVISION.
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DISPLAY "Hello, world!". PG,_^QGCX
STOP RUN. cq$i
% rxO_
sqW*
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Common Lisp q`pP$i:
(format t "Hello world!~%") )KP5WudX
_)\c&.p]f
Fy.\7CL>
DOS批处理 v'e[GB0
@echo off EOm:!D\
echo "Hello, world!" VO"("7L
C*`mM'#
\|K;-pL
Eiffel !H ~<
class HELLO_WORLD |m2X+s9
;$z$@@WC
creation $]8h $
make *W
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feature {uHU]6d3qy
make is 0=K9`=5d0
local SCz(5[MZJ
io:BASIC_IO ca>Z7qT!
do &\Amn?Iq
!!io %DdJ ^qHI
io.put_string("%N Hello, world!") Op_RzZP`
end -- make KG=h&
end -- class HELLO_WORLD Yh>]-SCw
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Erlang 5Lf{8UxI
-module(hello). [/X4"D-uOK
-export([hello_world/0]). [w -l?
t
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hello_world() -> io:fwrite("Hello, World!\n"). 5:kH;/U
0fYj4`4=n
V<j.xd7
Forth NM06QzE
." Hello, world!" CR /FIE:Io
W]nSR RWco
J2^'Xj_V
Fortran qs QNjt
WRITE(*,10) CXC`sPY
10 FORMAT('Hello, World!') ~I}&V T
STOP DS)RX.k_#
END o0pII )v
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9[^gAR
HTML TsGE cxIg
<HTML> z-b*D}&
<HEAD> nG;8:f`
<TITLE> Hello World! </TITLE> c.j$9=XLBG
</HEAD> nI*v820,
<BODY> @U2qD
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<p>Hello World!</p> _-#'j2
</BODY> #cCL.p"]
</HTML> ]X^rU`":
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H z5r$M
qk;{cfzHA
E8~}PQW:I
INTERCAL 1Y]TA3:
PLEASE DO ,1 <- #13 Grk@dZI
DO ,1 SUB #1 <- #238 kJ Mf
DO ,1 SUB #2 <- #112 \xS&v7b
DO ,1 SUB #3 <- #112 ~>+]%FPv
DO ,1 SUB #4 <- #0 gwWN%Z"
DO ,1 SUB #5 <- #64 l@ap]R
DO ,1 SUB #6 <- #238 nTz6LVF
DO ,1 SUB #7 <- #26 <Ce2r"U1e
DO ,1 SUB #8 <- #248 7K5P8N
,
DO ,1 SUB #9 <- #168 3fh8$A
DO ,1 SUB #10 <- #24 b%S62(qP
DO ,1 SUB #11 <- #16 1hziXC0WY
DO ,1 SUB #12 <- #158 $O dCL
DO ,1 SUB #13 <- #52 ()3O=!
PLEASE READ OUT ,1 !ki.t
PLEASE GIVE UP $.[#0lCI
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Java 6MxKl
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public class Hello ?A )hN8
{ ](^(=%
public static void main(String[] args) ti<;7Yb
{ 4X*>H
System.out.println("Hello, world!"); Z" uY}P3
} MC{
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} ZE/o?4k*c1
^tCd L@$AS
Co3:*nbRv
JSP r{rQu-|.
<% ^*fxR]Y
out.print("Hello, world!"); PxfY&;4n!
%> w#g#8o>'
8 P>#l. #
&CG*)bE
MIXAL Y)}Rb6qGW
TERM EQU 19 the MIX console device number DHY@akhrK
ORIG 1000 start address dF~8XYo
START OUT MSG(TERM) output data at address MSG Nq@+'<@p$
HLT halt execution '`Wwt.A
MSG ALF "MIXAL" `Ps:d^8*P
ALF " HELL" G2^et$<{uU
ALF "O WOR" tyDM'|p
ALF "LD " -k7X:!>QHC
END START end of the program [u._q:A
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<..直接输出..> s\P2Bp_{
Hello, world! v%RP0%%{s
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<..或者..> |#*'H*W
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<. >(snII
// 不带换行 &RTX6%'KY
? "Hello, world!" shMSN]S_x
!Lh^oPT"I
// 或者
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pm6>_Kz
// 带换行 A.5i"Ci[ie
?? 'Hello, world!' 3ux0Jr2yT
.> T]?n)L,2
o,P.&m{?
W
mm4hkf
OCaml %/rMg"f:
let main () = K_ci_g":
print_endline "Hello world!";; BY]i;GVq
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K
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Pascal a<h1\ `H7
program Hello; .n=Z:*JqQ
begin /P
2[:[w
writeln('Hello, world!'); O%ug@& S{
end. k}#;Uy=5
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Perl \fjMc }'
#!/usr/local/bin/perl ~%2pp~1K
print "Hello, world!\n"; e*.b3z
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A Z{^o4<q
PHP 3<=G?of
<?php ZKdeB3D
print("Hello, world!"); 2>l,no39t+
?> "rAY.E]
/QEiMrz@6
C-?!S
Pike
PTS]7
#!/usr/local/bin/pike $8crN$ye
int main() 4);)@&0Md~
{ ehA;i.n
write("Hello, world!\n"); g5q$A9.Jl
return 0; @EoZI~
} E~kG2x{a
o5n^!gi4
>dM8aJzC
PL/I c~o+WI
Ym
Test: procedure options(main); (S ^8UV
declare My_String char(20) varying initialize('Hello, world!'); &k8vWXMGk%
put skip list(My_String); 4&cL[Ny
end Test; .{S8f#p9T
^bLRVp1
U/NBFc:[y:
Prolog Mzd[fR5a8
goal dgo3'ZO
write("hello,world!"). DE
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Cbs5dn(Y
Python y4Er@8I`
#!/usr/local/bin/python wIf
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print "Hello, world!" cUO<.
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Krs2Gre}
REXX k'X;ruQ:tF
say "Hello, world!" '>(.%@
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Ruby _Zc%z@}
#!/usr/bin/ruby tV/Z)fpyH
print "Hello, world!\n" [/_+>M
1h7+@#<:a
syzdd
an
Scheme Ac|5. ?|N
(display "Hello, world!") .4l/_4,s_
(newline) t]-uw-E
0ji
q-3V)
5yVkb*8HS
sed (需要至少一行输入) ,pBh`av
sed -ne '1s/.*/Hello, world!/p' ]Zf6Yw .Y
4eH.9t
7P7b8]
Smalltalk [ REf>_R
Transcript show: 'Hello, world!' ;
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(3dPLp:K
ueG|*[
SNOBOL ~}DQT>7$
OUTPUT = "Hello, world!" Pj?Dmk~
END [4J6iF
bY~@}gC**@
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SQL *V k ^f+5
create table MESSAGE (TEXT char(15)); @uH#qg7
insert into MESSAGE (TEXT) values ('Hello, world!'); 9PUes3"v
select TEXT from MESSAGE; N]YtLa,t
drop table MESSAGE; 9F;S+)H4
s:y
^_W)d
F&;
Tcl ;o<m}bGaT
#!/usr/local/bin/tcl W
>(vYU
puts "Hello, world!" ->lu#;A5
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fMf&?`V
TScript P6U%=xaC
? "Hello, world!" [XlB<P=|>
TQ9D68
,
<EO<x D=:
Turing #:ns64|
put "Hello, world!" GQ_Ia\
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kD.pzxEM
UNIX-style shell <1~^C
程序中的/bin/sh可改为您使用的shell <JI&
{1
)yxT+g2!
#!/bin/sh f0Hq8qAF;^
echo 'Hello, world!' 8Og3yFx[rt
sNU}n<J-
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GUI yy(A(}
#NRh\Wj|
Delphi ")lw9t`
program HelloWorld; b*,3<