“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。 ;[|+tO_
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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》。 aCBq}Xcn
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以下是用不同语言写成的Hello World程序的几个例子: V.o*`V
Ada J!'IkC$>
with Ada.Text_Io; use Ada.Text_Io; >Q)S-4iR
procedure Hello is g
G|4+' t
begin 4&~*;an7
Put_Line ("Hello, world!"); I*(7(>zgyv
end Hello; gER(&L 4[
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rE\&FVx
汇编语言 *`tQX$F
U.|0y =
x86 CPU,DOS,TASM ^9|&w.:@Q
MODEL SMALL C Y)[{r
IDEAL EhN@;D+
STACK 100H L_IvR 4:j~
>lugHF$G
DATASEG 3LVL5y7|
HW DB 'Hello, world!$' &2W`dEv]?
}BCxAwD4
CODESEG n$"BF\eM
MOV AX, @data y<y9'tx
MOV DS, AX _Aw-{HE'
MOV DX, OFFSET HW j9=)^?
MOV AH, 09H v)'Uoe"R%
INT 21H ay28%[Q b4
MOV AX, 4C00H JOki4N
INT 21H a & 6-QVk
END I>>X-}
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x86 CPU,GNU/Linux,NASM V#+J4
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). "+BuFhSLf
;Enter this into "hello.asm" then type: z'EphL7r
;"nasm -f elf hello.asm" mpl^LF[
;"ld hello.o -o hello" 1sfs!b&E
;"./hello" [wUJ~~2#
mS]soYTQ
section .data ;data section declaration '_xa>T}
msg db 'Hello World!',0AH CWnRRZ}r
len equ $-msg ;string length JZD&u6tB
c$)!02
section .text ;code section declaration zM'2opiUY
global _start ;entry point (start of execution) T{ /\q 5
_start: mov edx,len ;string length zc>LwX}<
mov ecx,msg ;string start m] @o1J
mov ebx,1 ;file handle: stdout TI3@/SB>
mov eax,4 ;sys_write IPnx5#eB
int 80h ;kernel system call Uql7s:!,U
bj 0-72V
mov ebx,0 ;return value @ds.)sKA>
mov eax,1 ;sys_exit :?7^STc
int 80h ;kernel system call rf$eg
bw[K^/
~&_BT`a
x86 CPU,Windows,MASM32 cA+O]",}
.386 }4xz, oN
.model flat,stdcall $2k9gO
option casemap:none ~"vRH
;Include 文件定义 @]%cUjQ
include windows.inc =,LhMy
include user32.inc `Zz;[<*<
includelib user32.lib :D=y<n;S+
include kernel32.inc _ud!:q
includelib kernel32.lib Eb\SK"8
;数据段 IN!IjInaT@
.data Je~<2EsQ
szCaption db 'A MessageBox!',0 ; <|m0>X
szText db 'Hello,world!',0 /k^O1+]H
;代码段 P vS\
.code qg8T}y>
start: 1=Q3WMT
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK IZ+ZIR@}ci
invoke ExitProcess,NULL {>>Gc2UT
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> x% Eu.jj
end start eX{Tyd{
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4> (OM|X=9
AWK 5> =Ia@I
BEGIN { print "Hello, world!" } n0=[N'Tw3
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BASIC v
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传统版BASIC(例如GWBASIC): Z_?r5M;
LgoUD*MbQ
10 PRINT "Hello, world!" 1V 2"sE
20 END nsV;6^>
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或在提示符输入: 7_AcvsdW
4[m4u6z=
?"Hello, world!":END EX,)MU
HVcd< :g0
现代版BASIC(例如Quick BASIC): uVV;"LVK~
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Print "Hello, world!" 8w4cqr4m
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以下的语句在Quick BASIC中同样有效: ADN
m=%WA5c?
? "Hello,world!" Ptv=Bwg
;/.XAxkFL
AP_2.V=Sn
BCPL k/}E(_e
GET "LIBHDR" POc-`]6<F
Q:!.YSB
LET START () BE M}tr*L
$( hKYA 5]
WRITES ("Hello, world!*N") JGKiVBN
$) IH0qx_;P&
BF>3CW7
3 ~^ }R
Befunge &5F@u
IA
"!dlrow olleH">v 7\1bq&a<
, R} aHo0r
^_@ ,Q8)r0 c
fu?Y'Qet
RzLbPSTQ
Brainfuck Ok&u4'<
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< w6[uM%fHG
+++++++++++++++.>.+++.------.--------.>+.>. #97w6,P+
^8r4tX
rN%aP-sa<
C 2Aq%;=+*
#include <stdio.h> X"qC&oZmf
:TzHI
int main(void) d*xKq"+
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{ 6P KH%
printf("Hello, world!\n"); 4RV5:&ALLS
return 0; o Z#4<7K
}
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8P'zQ:#RV
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C++ i''[u
#include <iostream>
L5tSS=
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int main() LE:nmo
{ F7zBm53
std::cout << "Hello, world!" << std::endl; 4^mpQ.]lO
return 0; Cp2$I<T
} @<
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^q0Ox&X
$pm5G} .
C++/CLI Z@I.socA
int main() k6vY/)-S
{ v&GBu
System::Console::WriteLine("Hello, world!"); 8s_'tw/{
} ovn)lIs
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WS
b{o%`B*
C# (C Sharp) ]"<
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class HelloWorldApp \Q+<G-Kb.
{ Gmi$Nl!~
public static void Main() oX9rpTi
{ <ZV !fn
System.Console.WriteLine("Hello, world!"); :3# t;
} ;-1yG@KG
} ,nELWzz%{
nRmZu\(Ow|
Dog Tj
COBOL 6R+m;'
IDENTIFICATION DIVISION. x\m !3
PROGRAM-ID. HELLO-WORLD. SBY
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ENVIRONMENT DIVISION. \*0ow`|K
PKhH0O\_U
DATA DIVISION. jz_\B(m9%
mG!Rh
PROCEDURE DIVISION. (bk~,n_
DISPLAY "Hello, world!". TrHz(no
STOP RUN. H *gF>1
G#&R/Tc5N
G:e9}
Common Lisp 0N~AQu
(format t "Hello world!~%") x7=5 ;gf/X
1}{bHj
bt/u^E
DOS批处理 }-:s9Lt
@echo off OA??fb,b
echo "Hello, world!" BiQ7r=Dd.
MXbt`]`_
9I:H=5c
Eiffel {U&*8Q(/
class HELLO_WORLD ?th`5K30
c:Tw.WA
creation FbVdqO
make 'mz
_JM
feature 0?]*-wvp
make is 7ZbnG@s7
local > !thxG/_
io:BASIC_IO T=|oZ
do 'G!w0yF
!!io \h DH81L
io.put_string("%N Hello, world!") n"'1.
end -- make Htseu`>_$
end -- class HELLO_WORLD 0i2ZgOJ
R!i9N'gGG(
cCd2f>EHw
Erlang );*A$C9RA
-module(hello). E }aTH
-export([hello_world/0]). 5fK#*(x
Y!C=0&p
hello_world() -> io:fwrite("Hello, World!\n"). `gIlS^Q
M~Yho".
o:<gJzg
Forth ,[rh7_
." Hello, world!" CR `CP}1W>
z}vgp\cuT
CY&Z*JI"'B
Fortran P%8zxU;
WRITE(*,10) ^w eU\
10 FORMAT('Hello, World!') 0^VA,QkQ\
STOP 5+<<:5_6l
END Zb)j2Xgl
[]D@"Bz
$okGqu8z.O
HTML 0s"g%gq|
<HTML> ppt`5F O
<HEAD> R^Wed
<TITLE> Hello World! </TITLE> sEj?,1jk
</HEAD> >qj Q;z[
<BODY> ULq#2l
<p>Hello World!</p> d>z?JDt
</BODY> =6Dz<Lq
</HTML> Z[Gs/D
E"D+CD0
IT a8*Myj
HQ9+ 4@D 8{?$~Q
H N-fGc?E
>E&mNp
P%hi*0pwZ
INTERCAL v:c_q]z#B
PLEASE DO ,1 <- #13 hm=E~wv'L
DO ,1 SUB #1 <- #238 ;6g &_6
DO ,1 SUB #2 <- #112 <QGf9{m
DO ,1 SUB #3 <- #112 Omkl|l9
DO ,1 SUB #4 <- #0 wV- kB4^4
DO ,1 SUB #5 <- #64 &BnK[Q8X
DO ,1 SUB #6 <- #238 F.)b`:g
DO ,1 SUB #7 <- #26 6$qn'K$
DO ,1 SUB #8 <- #248
SqL8MKN)
DO ,1 SUB #9 <- #168
9K*yds
DO ,1 SUB #10 <- #24 okx~F9
DO ,1 SUB #11 <- #16 a $pxt!6
DO ,1 SUB #12 <- #158 <4,n6$E
DO ,1 SUB #13 <- #52 >r] bfN,
PLEASE READ OUT ,1 JTw\5j
PLEASE GIVE UP -EV_=a8[y
\hpD
)BR6?C3
Java =p 9d4smbn
public class Hello xy>~1 5
{ Zvd^<SP<?
public static void main(String[] args) ;0Yeo"-
{ 5I,5da
System.out.println("Hello, world!"); Np>[mNmga
} RkVU^N"
} P+!j[X^
$gm`}3C<
%zx=rn(K
JSP &?\ h[3
<% LJK<Xen
out.print("Hello, world!"); ngM>Tzirt
%> W)I)QinOH
x/Pi#X m
v=15pW
MIXAL nlaJ
TERM EQU 19 the MIX console device number E5.3wOE
ORIG 1000 start address LyM"
START OUT MSG(TERM) output data at address MSG hC@oyC(4
HLT halt execution L
M
MSG ALF "MIXAL" tmF->~|
ALF " HELL" OHixOI$O
ALF "O WOR" 5bZf$$b
ALF "LD " g6:S"Em
END START end of the program ]*a3J45
#Jt9U1WbF
YNCQPN\v`1
Nuva hO3>Gl5<
<..直接输出..> z_vFf0
Hello, world! %jKbRiz1u
$ qk2!
<..或者..> 2
F3U,}
T0xU}
<. *C*n (the
// 不带换行 5/-{.g
? "Hello, world!" Td%[ -
@Y":DHF5q
// 或者 Y>*{(QD
?5d7J,"<h
// 带换行 IHCEuK
?? 'Hello, world!' t><AaYij_
.> Wh4`Iv\.
U5 ~L^
yD|He*$S
OCaml W|_^Oe<
let main () = 4%/iu)nx
print_endline "Hello world!";; Z6%Hhk[
u!TVvc
q1QrtJFPG
Pascal SS;[{u!
program Hello; {VqcZhqy/l
begin _JZS;8WYR
writeln('Hello, world!'); .0^-a=/
end. 9$F '*{8
g7G=ga
GmoY~}cg~
Perl "|&xUWJ!)
#!/usr/local/bin/perl 8Qtd,
print "Hello, world!\n"; O?|st$g
$ftcYBZa
[ix45xu7
PHP sV{M#UF2
<?php HhkubG)\
print("Hello, world!"); b=<xzvy
?>
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nzI}w7>VU
_l}"gUti w
Pike 6@_Vg~=S
#!/usr/local/bin/pike QF 2Eg
int main() u\gPx4]4c
{ _bp9UJ
write("Hello, world!\n"); NWCJ|
return 0; Wt2+D{@8
} ]DcQ8D
ao>`[-
GrWzgO
PL/I (~t/8!7N
Test: procedure options(main); ^|KX)g
declare My_String char(20) varying initialize('Hello, world!'); Y'6GY*dL
put skip list(My_String); /8 /2#`3R
end Test; ptXCM[Z+
%G!BbXlz
/lBx}o'
Prolog > D:(HWL
goal #SiOx/
write("hello,world!"). B=K&+
FbRq h|
}$-;P=k
Python 871taL=
#!/usr/local/bin/python :BFecS&i5
print "Hello, world!" lc%2fVG-e
JGjqBuz#A*
L' w
}
REXX 4?GW]'d
say "Hello, world!" W|S{v7[l
Cf#[E~2 4
(dl7+
Ruby Y>}[c
#!/usr/bin/ruby (h;4irfX
print "Hello, world!\n" /$v0Rq9
Ik_u34U
8RC7Ei
Scheme rOC2 S(m
(display "Hello, world!") d\Q~L 3x
(newline) Zi$v- b*<
$@y<.?k>UP
RGrra<
sed (需要至少一行输入) Z/nTI0N{
sed -ne '1s/.*/Hello, world!/p' D;%(Z!
Vo*38c2
^^MVd@,i
Smalltalk g~EJja;
Transcript show: 'Hello, world!' FSnF>3kj-
WZkAlg7Z
lFMQT
;
SNOBOL @SA:64
9
OUTPUT = "Hello, world!" no_(J>p^&
END #Fx$x#Gc@y
%hcn|-"F
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