“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。 1L
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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》。 I2!HXMrp
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以下是用不同语言写成的Hello World程序的几个例子: \iSBLU
Ada ?G<IN)
with Ada.Text_Io; use Ada.Text_Io; v")
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procedure Hello is qc"/T16M]
begin yVv3S[J
Put_Line ("Hello, world!"); !)3Su=*R
end Hello; ):EXh #
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汇编语言 ' *C)S
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x86 CPU,DOS,TASM 1vudT&
MODEL SMALL <$6E r
IDEAL mU>*NP(L
STACK 100H kakWXGeR
3H%WB|
DATASEG IH:Cm5MV
HW DB 'Hello, world!$' ${eh52)`
bdhgHjz
CODESEG . L%@/(r
MOV AX, @data T )]|o+G
MOV DS, AX v!C+W$,T
MOV DX, OFFSET HW Gw,kC{:C
MOV AH, 09H tV4aUve
INT 21H 6RodnQ
MOV AX, 4C00H ~ZN9 E-uL
INT 21H gq &85([
END DTVnQC
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x86 CPU,GNU/Linux,NASM YZ
P
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). q2i~<;Z)9
;Enter this into "hello.asm" then type: HjR<4;2
;"nasm -f elf hello.asm" bvTkSEN
;"ld hello.o -o hello" zz*[JIe
;"./hello" q8]k]:r
#TF
section .data ;data section declaration D$
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msg db 'Hello World!',0AH C}E
ea~
len equ $-msg ;string length \
.s".aA
4;{CR. D
section .text ;code section declaration f#b[KB^Z,2
global _start ;entry point (start of execution) GdY^}TJrh
_start: mov edx,len ;string length "S#hzrEdYI
mov ecx,msg ;string start a8$pc>2E
mov ebx,1 ;file handle: stdout 7J/3O[2
mov eax,4 ;sys_write A*;h}\n
int 80h ;kernel system call mq9&To!
V@f#/"u'
mov ebx,0 ;return value P .( X]+
mov eax,1 ;sys_exit Us.jyg7_c
int 80h ;kernel system call 1Xc%%j
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:gv#_[k
x86 CPU,Windows,MASM32 8G<.5!f7`N
.386 nJC}wh2d#
.model flat,stdcall b7mP~]V
option casemap:none &T}e93]
;Include 文件定义 }$U6lh/Ep
include windows.inc ]h@:Y]
include user32.inc OSU=O
includelib user32.lib "rJL ^ \r
include kernel32.inc 4ebGAg ?_
includelib kernel32.lib xy>mM"DOH
;数据段 *%sYajmD
.data sBL^NDqa2
szCaption db 'A MessageBox!',0 ,_O[;L
szText db 'Hello,world!',0 +[+Jd)Z
;代码段 _Z&R'`kg
.code ;_*F [
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start: K)OlCpHc
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK %Kp}Wo6
invoke ExitProcess,NULL (FHh,y~v
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> )cXc"aj@s
end start z>~3*a9&
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AWK "'(4l 2.
BEGIN { print "Hello, world!" } P]GGnT(!
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BASIC 9
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传统版BASIC(例如GWBASIC): Mt>DAk
Fjb[Ev
10 PRINT "Hello, world!" d-aF-
20 END hRu%> =7
L_|Y_=r."
或在提示符输入: @hPbD?)M
Ja1*a,],L
?"Hello, world!":END mHy]$Z
2BY:qz%:
现代版BASIC(例如Quick BASIC): lhU# /}Z
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Print "Hello, world!" `x{gF8GV
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以下的语句在Quick BASIC中同样有效: DGnswN%n1
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? "Hello,world!" {[+gM?
LtBH4A
3ssio-X
BCPL p"Y=
GET "LIBHDR" H Vy^^$
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LET START () BE '`u1,h
$( kcb'`<B
WRITES ("Hello, world!*N") \N)FUYoHg
$) =k
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Jo ^o`9
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Befunge L~~aW0,
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, Bv3v;^
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[B[ J%?NS
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Brainfuck Z:Wix|,ONS
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< TH-^tw
+++++++++++++++.>.+++.------.--------.>+.>. qCMcN<:>
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#include <stdio.h> +Muyp]_
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int main(void) @tA.^k0`
{ f
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printf("Hello, world!\n"); ?#'qY6 ^
return 0; WBGYk);
} k)J7) L
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C++ >cp9{+#f
#include <iostream> -'2.^a-8-g
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int main() _rM%N+$&d_
{ fITml6mbE
std::cout << "Hello, world!" << std::endl; Vswi /(
return 0; _:z~P<%s
} 7]Egu D4
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C++/CLI :A$6Y*s\
int main() ^$(|(N[;
{ BC+HP9<]
System::Console::WriteLine("Hello, world!"); qhtc?A/0}
} )q,}jeM8
:/3`+&T^/
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C# (C Sharp) M3''xrpC
class HelloWorldApp |lv4X}H
{ >@X=E3
public static void Main() cA*%K[9
{ {MS&t09Wh
System.Console.WriteLine("Hello, world!"); P+/L,u
} 5FMKJ7sC9
} PQK_*hJG"
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;?rW`e2
COBOL Q*wx6Pu8
IDENTIFICATION DIVISION. %bsdC0xM
PROGRAM-ID. HELLO-WORLD. sk5\"jna
rk~/^(!
ENVIRONMENT DIVISION. 5*CwQJC<
0\mzGfd
DATA DIVISION. Q -+jG7vT
,iyIF~1~#>
PROCEDURE DIVISION. ]:njP3r
DISPLAY "Hello, world!". 0MOAd!N
STOP RUN. L \$zr,=C
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\8pbPo=x
Common Lisp g/E;OcFaO
(format t "Hello world!~%") >eXNw}_j
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9.R_=
DOS批处理
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@echo off D"hiEz
echo "Hello, world!" ck}y-,>,[O
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ql4T@r3l}3
Eiffel c*h5lM'n6
class HELLO_WORLD ?1d_E meG2
T:-Uy&pBEN
creation 6?~pWZ&k_
make o]nQo?!
feature C{Fo^-3
make is xP*R H-<
local ~q/`Z)(yc
io:BASIC_IO `XD$1>
do q<1@ut
!!io K,R Ia0)
io.put_string("%N Hello, world!") D,7! /u'
end -- make #8`G&S*
end -- class HELLO_WORLD R'F|z{8
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Erlang
A=,m
-module(hello). YP6+o#==
-export([hello_world/0]). )KNFS,5
R6!3Y/Q@
hello_world() -> io:fwrite("Hello, World!\n"). 2@H~nw 0
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Forth >ko;CQR
." Hello, world!" CR ."lY>(HJ
eI[z%j[Y*
NZ_45/(dx
Fortran 4M:oa#gh@
WRITE(*,10) a}fW3+>
10 FORMAT('Hello, World!') [;2v[&Po
STOP u66w('2
END Cr&ua|%F
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HTML f ZISwr
<HTML> _E~uuFMn*R
<HEAD> UKzmRa,s
<TITLE> Hello World! </TITLE> &@RU}DnvM&
</HEAD> # WxH
<BODY> c(~M<nL0
<p>Hello World!</p> 5E%W;$3Pb
</BODY> HiWZ?G
</HTML> l/`Z+];
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HQ9+ Ywni2-)<
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bXJE 2N
MF1u8Yl:0
INTERCAL WcdU fv(>
PLEASE DO ,1 <- #13 PCES&|*rf
DO ,1 SUB #1 <- #238 =#W{&Te;
DO ,1 SUB #2 <- #112 EH[ ?*>+s
DO ,1 SUB #3 <- #112 ,Pl[SMt!
DO ,1 SUB #4 <- #0 1rN&Y,61\
DO ,1 SUB #5 <- #64 O`2%@%?I
DO ,1 SUB #6 <- #238 Cjd +\7#G
DO ,1 SUB #7 <- #26 S-1}3T%
DO ,1 SUB #8 <- #248 L4dbrPE*0
DO ,1 SUB #9 <- #168 5/(Dh![l
DO ,1 SUB #10 <- #24 v\<`"
DO ,1 SUB #11 <- #16 :s4CWEd
DO ,1 SUB #12 <- #158 A*$vk2VWw
DO ,1 SUB #13 <- #52 wM|-u/9+
PLEASE READ OUT ,1 ?GFVV ->i
PLEASE GIVE UP -wO`o<
# ><.zZ
Ao,lEjN I
Java {!,+C0
public class Hello ='mqfGRi>
{ k'{lo_
public static void main(String[] args) u-? &~WA
{ a E#s#Kv
System.out.println("Hello, world!"); =e4,)Wd9&
} ve>8vw2
} Ar\`OhR
#3qkG)
{u!,TDt*
JSP g'I S8@
<% *"E]^wCn
out.print("Hello, world!"); is6JS^Q
%> ZJx:?*0a
Q8P;AN_JS
!?KY;3L:
MIXAL x|Q6[Y
TERM EQU 19 the MIX console device number Y!SD^Ie7!
ORIG 1000 start address Pukq{/27
START OUT MSG(TERM) output data at address MSG c,+oH<bZZs
HLT halt execution `T mIrc
MSG ALF "MIXAL" wp@c;gK7
ALF " HELL" t!K|3>w
ALF "O WOR" tV<Au
ALF "LD " t!PFosFp
END START end of the program 1e&`m~5K+
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8`im4.~#%
Nuva BtjsN22
<..直接输出..> *:_.cbo
Hello, world! ]-0
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\Oc3rJ(
<..或者..> l5aQDkp}
=7$YBCuF
<. F[J;u/Z
// 不带换行 7%o\O{,U
? "Hello, world!" -
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// 或者 Hiw{1E:rW
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// 带换行 k1]?d7g$w
?? 'Hello, world!' r*kk/$,2
.> n9)/(=)>*
haY.rH]z
4YdmG.CU
OCaml /423!g0Q
let main () = :CV&WP
print_endline "Hello world!";; u|Db%)[
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Pascal VD1*br^,
program Hello; KC
begin ^^v\ T
writeln('Hello, world!'); "F0,S~tZZ
end. "--rz;+K
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6 Iup4sP
Perl d,$[633It}
#!/usr/local/bin/perl Vls*fY:W
print "Hello, world!\n"; Um*{~=;u
M34*$>bk
/Cwt4.5
PHP >bmL;)mc&
<?php
l_$~~z ~
print("Hello, world!"); (/Nw
?> z<)?8tAgq
TG'A'wXxy
;Ni+TS
Pike Rh:\/31~
#!/usr/local/bin/pike 03#r F@e
int main() cA_v*`YL
{ lS}5bcjR=k
write("Hello, world!\n"); UP#]n
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return 0; @1rF9<
4g
} R_(A&,
PF4Cs3m/
"&7v.-Yk(
PL/I pnVtjWrbG
Test: procedure options(main); YsLEbue
declare My_String char(20) varying initialize('Hello, world!'); #K
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put skip list(My_String); /EWF0XV!
end Test; #OG_OI
1!,lI?j,
HSyohP8 7
Prolog }>SHTHVye
goal WtdWD_\%Y\
write("hello,world!"). #Mi>f4T;
\Q]2Zq
tTC[^Dji
Python b[H& vp
#!/usr/local/bin/python 8r+R~{
print "Hello, world!" , Lhgv1
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nIXq2TzJ
REXX :fo%)_Jc!
say "Hello, world!" +xB!T1pD
3_ObCsJ#,
lO)p
Ruby t[7YMk
#!/usr/bin/ruby O[Nc$dc
print "Hello, world!\n" wB"&K;t
4km=KOx[
~^:/t<N
Scheme F@&q4whaVD
(display "Hello, world!") OyFBM>6gh
(newline) ^-mz!{
T|r@:t[
S+_}=25
sed (需要至少一行输入) tOS%.0W5J
sed -ne '1s/.*/Hello, world!/p' HuCH`|v-
_! \X>rfz
rAk*~OK
Smalltalk '^n2]<
Transcript show: 'Hello, world!' ^uC1\!Q1
ZA+$ZU^
J?u",a]|H"
SNOBOL <#LHL
OUTPUT = "Hello, world!" 5"k_Ms7R,
END /6b(w=pk
JYs*1<
8gr&{-5
SQL 5fM/y3QPsZ
create table MESSAGE (TEXT char(15)); r(0I>|u
insert into MESSAGE (TEXT) values ('Hello, world!'); ,~%Qu~\
select TEXT from MESSAGE; -7hU1j~I
drop table MESSAGE; 7DXT1+t
I3p ~pt2
6D@tCmmq
Tcl j<4J_wE
#!/usr/local/bin/tcl lD.PNwM
puts "Hello, world!" @\b*a]CV
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{ SJ=|L6
TScript WSKG8JT^|
? "Hello, world!" ,r+=>vre
kjJ\7x6M
rN8 ZQiJC
Turing '9]%#^[Q
put "Hello, world!" wlmi&kq
4f'WF5S/}8
D3vd O2H
UNIX-style shell ,m9Nd "6\
程序中的/bin/sh可改为您使用的shell A:0
L*Xn!d%
#!/bin/sh m},nKsO
echo 'Hello, world!' wnN@aO6g*
9c4 6|
1DN,
GUI qdjRw#LS^q
m>jX4D7KZ
Delphi {.DI[@.g
program HelloWorld; &X9#{:l=
uses V
:*GG+4
Dialogs; ?20y6c <
begin ;M>0,
ShowMessage('Hello, World!'); (+q?xwl!N
end. o#4Wn'E
VEd\*
i=#r JK=
Nuva u,*$n'l]
<. \/. Of]YQ
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 4cTJ$" v
.> 0`3ey*
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Visual Basic 76
#
MsgBox "Hello, world!" yAi#Y3!::
'或者 p$0;~1vH
Print "Hello, world!" 6WzE'0Nyr
VgN`'
iC`I
VABrw t
Visual FoxPro ig7)VKr
? "Hello, world!" g*AnrQ}P
Xb&r|pR
KAO}*?
X11 Hvnak{5
用一个程序 #B&D
72@8M
xmessage 'Hello, world!' \Llrs-0 M
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用C++和gtkmm 2 jgVra*
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#include <iostream> v'2EYTVNJD
#include <gtkmm/main.h> \V +$2
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#include <gtkmm/button.h> EX='\~Dw
#include <gtkmm/window.h> s[SzE6eQ`l
using namespace std; U^snb6\5
(uD(,3/Cw
class HelloWorld : public Gtk::Window ,.x5
{ "/O0j/lm
public: <