“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。 ](s5;ta
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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》。 )mN/e+/Lu
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以下是用不同语言写成的Hello World程序的几个例子: [75?cQD
Ada Yh!k uS#<
with Ada.Text_Io; use Ada.Text_Io; I`IW^eZM
procedure Hello is BH}Cx[n?~
begin t`hes
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Put_Line ("Hello, world!"); -lfDoNRhQ
end Hello; \/ri|fm6l#
+\ "NPK@3
.7Yox1,
汇编语言 (r?hD*2r
G+2fmVB*X
x86 CPU,DOS,TASM > fV"bj.
MODEL SMALL 7O|`\&RYR
IDEAL F%lC%~-qh
STACK 100H f &NX~(
X)RgXl{
DATASEG j`@`M*)GB
HW DB 'Hello, world!$' `IBNBJy
5cA:;{z];g
CODESEG `q^qe> '
MOV AX, @data k_u!E3{~
MOV DS, AX k&5T-\ q
MOV DX, OFFSET HW )n9,?F#l
MOV AH, 09H KfVsnL_
INT 21H WY@g=W>+
MOV AX, 4C00H YSPUQ
INT 21H uUq= L
END l-c:'n
{)b
#d[Nm+~ko
x86 CPU,GNU/Linux,NASM 0>-}c>
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). t~ I;IB
;Enter this into "hello.asm" then type: St!0MdCH
;"nasm -f elf hello.asm" w1zMY:9
;"ld hello.o -o hello" #M!{D
;"./hello" jbZTlG
l\N2C4NG
section .data ;data section declaration rZB='(?
msg db 'Hello World!',0AH \@h$|nb
len equ $-msg ;string length &CXk=Wj
54WX#/<Yik
section .text ;code section declaration /TB{|_HbW
global _start ;entry point (start of execution) `wj'
_start: mov edx,len ;string length R64f0NK.
mov ecx,msg ;string start 6)i>qz).
mov ebx,1 ;file handle: stdout m-~3c]pA
mov eax,4 ;sys_write LTA0WgzR)
int 80h ;kernel system call ,vMAX?c
Oop6o$k
mov ebx,0 ;return value wmR~e
mov eax,1 ;sys_exit ^ @=4HtA
int 80h ;kernel system call lqrI*@>Tz
yoe@]c=
=5^1Bl
x86 CPU,Windows,MASM32 2-UD^;0
.386 wXnVQ-6H
.model flat,stdcall dS Tyx#o
option casemap:none ~9k E.
;Include 文件定义 m&q0 _nay
include windows.inc |XNw&X1VF
include user32.inc ui`EODhA(
includelib user32.lib {/5aF_0D.
include kernel32.inc o4yl3o
includelib kernel32.lib }C["'tLX
;数据段 EAWBgOO8iC
.data %}~(%@qB>+
szCaption db 'A MessageBox!',0 )'7Qd(4WT
szText db 'Hello,world!',0 ?A .ah
;代码段 "8?Fl&=Q
.code Dz2Z
(EXI~
start: eYkg4 O'
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK Pq{p\Qkj
invoke ExitProcess,NULL S{MB$JA
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> U%BtBPL
end start )OQ<H.X
?0sTx6x@
GCr]x '
AWK 6'uCwAQU
BEGIN { print "Hello, world!" } X+u1p?
Q;q{1M >
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BASIC V)5,E>;EN
传统版BASIC(例如GWBASIC): SEi\H$!
?< yYm;B
10 PRINT "Hello, world!" 8vR'<_>Q
20 END z9
#-
<ycR/X
或在提示符输入: o F_{oV'
Y1ca=ewFx
?"Hello, world!":END jxhZOLG
}?6;;d#
现代版BASIC(例如Quick BASIC): pz/W#VN
;iJxJX\+
Print "Hello, world!" !.pcldx
.qYQ3G'V
以下的语句在Quick BASIC中同样有效: !:esdJH
&dni6E4
? "Hello,world!" q;sZwp<
l:/x&=w
cZoj|=3a
BCPL grkA2%N
GET "LIBHDR" EX, {1^h
-,g.39u
LET START () BE .YB/7-%M[
$( .rwW5"RPq
WRITES ("Hello, world!*N") Ml?KnSb
$) ;+o6"ky5
#CyqiOM\*
cAVdH{$"
Befunge lMg#zT!?
"!dlrow olleH">v $txF|Fj]^A
, )~nieQEZQ
^_@ {wz_ngQ
DNqC*IvuzM
p__N6a
Brainfuck F)imeu
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< {
JDD"z
+++++++++++++++.>.+++.------.--------.>+.>. H;tE=
\K%M.>]vq
AkO);4A;Jd
C :Zob"*T
#include <stdio.h> [Ne'2z
]Z=al`-
int main(void) v7#|%
{ [[N${ C
printf("Hello, world!\n"); %" l;
return 0; i tk/1
} ?0JNaf
[^/a`Kda8
W*(- *\1[
C++ c1y+kvv
#include <iostream> x7i<dg&
BE~-0g$W
int main() &U}8@;
{ W|n$H`;R
std::cout << "Hello, world!" << std::endl; Z8Vof~
return 0; yUxz,36wZ
} Q^@7Yg@l
N@!PhP
aiE\r/k8s
C++/CLI <X& fs*x&
int main() 1_c%p#?K
{ GM)q\Hx{
System::Console::WriteLine("Hello, world!"); 7ju38@+
} jk\V2x@DR
Y"s8j=1m
WT1y7+_g(d
C# (C Sharp) T
7qHw!)
class HelloWorldApp gLZJQubz
6
{ anfnqa8
public static void Main() #&L7FBJ"*v
{ 4ZR2U3jd1
System.Console.WriteLine("Hello, world!"); 3=Rk(%:;
} 5e7\tBab
} Q%J,:J
tc\ZYCFr
`cN8AcRHP
COBOL vv^y
V"0Y
IDENTIFICATION DIVISION. -F3~X R
PROGRAM-ID. HELLO-WORLD. 5gC>j(
0E
(G1o'
ENVIRONMENT DIVISION. &0%B3
ORWi+H|
DATA DIVISION. ryA+Lli.
=d:3]M^
PROCEDURE DIVISION. 0,.|-OZ
DISPLAY "Hello, world!". aX|(%1r
STOP RUN. lq,]E/<&
%Lh+W<;
~.0'v [N
Common Lisp l7 @cov
(format t "Hello world!~%") 8]1,E E<
IJDbm}:/e
+KNd%AJ
DOS批处理 Wyeb1
@echo off qZ@d:u
echo "Hello, world!" mieyL9*n7
hJir_=
ssoE ,6kS
Eiffel ]\L+]+u~
class HELLO_WORLD ];b+f@
V3d$C&<(
creation 3=} P l,
make {{gt>"D,
feature T-/3
A%v
make is |R!ozlL{}
local k9:|CEP
io:BASIC_IO #)[.Xz:U
do y*US^HJOZ
!!io , `EOJ"|
io.put_string("%N Hello, world!") aD_7^8>
end -- make a1%}Ee
end -- class HELLO_WORLD wrX n|aV
}_^ vvu
I'p+9H$
Erlang }4h0{H
-module(hello). :2C
<;o
-export([hello_world/0]). >Q[ Z{
|k%1mE(+=s
hello_world() -> io:fwrite("Hello, World!\n"). 5ddfdIp
S'NLj(
]IeLKcn
Forth gMkSl8[
." Hello, world!" CR V
d]7v
|GsMLY:0
Wv;,@xTZ
Fortran ?.lo[X<,*
WRITE(*,10) V7p
hD3Y
10 FORMAT('Hello, World!') IXR'JZ?fH
STOP 'RzO`-dr
END
_VmXs&4
bQwG"N
2efdJ&eIV
HTML BF;}9QebmS
<HTML> /;1O9HJa
<HEAD> 6PS[OB{3
<TITLE> Hello World! </TITLE> SBDGms
</HEAD> FH$q,BI!R
<BODY> U|\ .)h=
<p>Hello World!</p> 6KXW]a `
</BODY> i?uX'apk
</HTML> B
I3fk
*,*O.#<6
%.l={B,i
HQ9+ t*A[v
H UX<-jY#'V
lQvgq
T:H~Y+qnt
INTERCAL `YE=B{q
PLEASE DO ,1 <- #13 S7#dyAX8
DO ,1 SUB #1 <- #238 j|N<6GSke
DO ,1 SUB #2 <- #112 eMmNQRmH
DO ,1 SUB #3 <- #112 #d/T7c#
DO ,1 SUB #4 <- #0 hlze]d?z
DO ,1 SUB #5 <- #64 bqp^\yu-E
DO ,1 SUB #6 <- #238 $8AW
DO ,1 SUB #7 <- #26 }Q ]-Y :
DO ,1 SUB #8 <- #248 @pYC!;n+
DO ,1 SUB #9 <- #168 3]9Rmx
DO ,1 SUB #10 <- #24 ,9_O4O%
DO ,1 SUB #11 <- #16 wAX;)PLg
DO ,1 SUB #12 <- #158 dGkw%3[
DO ,1 SUB #13 <- #52 8e,F{>N
PLEASE READ OUT ,1 )Ho"b
PLEASE GIVE UP KZVdW@DY
sK&kp=zu
@F$}/
Java ]FIIs58IM
public class Hello ~K<h~TNP
{ 3;> z %{
public static void main(String[] args) ]j6K3
{ l}/&6hI+d
System.out.println("Hello, world!"); 8TP~=qU
} '`2MxRP
} vD?D]8.F~Q
$e--"@[Y
z/f._Z(
JSP [[6"qq
<% "e8EA!Ipte
out.print("Hello, world!"); Vwh;QJxb
%> bDJ!Fc/
_;Xlw{FN^
)z18:C3
MIXAL u~Po5W/i
TERM EQU 19 the MIX console device number gW--[
ORIG 1000 start address >wt.)c?5
START OUT MSG(TERM) output data at address MSG $;Iz7:#jN
HLT halt execution Jvsy
6R
MSG ALF "MIXAL" xU0iz{9
ALF " HELL" W;UPA~nT~
ALF "O WOR" h$6'9rL&i
ALF "LD " r^<,f[yH
END START end of the program dh [kx
l5&5VC)
fR'!p: ~
Nuva
>3KlI
<..直接输出..> fHEIys,{
Hello, world! lX"m|W
2y!aXk\#C
<..或者..>
^v cnDi
0a8\{(w
<. h-;> v.
// 不带换行 S#B%[3@
? "Hello, world!" x$n.\`f0
L8f+uI
// 或者 V:J|shRo
g'7\WQ
// 带换行 a{^z= =
?? 'Hello, world!' ]w _&%mB
.> I]+
zG
.FgeAxflP
vN],9q
OCaml f'(F'TE
let main () = 3'` &D/n
print_endline "Hello world!";; <3@nv%
!-470J
F1- "yX1B
Pascal eLORG(;h4
program Hello; 7 =}tJ
begin r0lI&25w
writeln('Hello, world!'); <Z 3C&BM
end. 1t &_]q_
g |?}a]G
%%?}db1n
Perl U,v`md@PX
#!/usr/local/bin/perl |UWIV
print "Hello, world!\n"; Kb<c||2Nh5
]1d)jWG
2#lpIj
PHP g_P98_2f.k
<?php y'odn ;
print("Hello, world!"); <ml?DXT
?> N~CQh=<
*~U.36
JWg.0d$hM
Pike fg#e*7Odn
#!/usr/local/bin/pike uKM` umE
int main() {S9gOg
{ 3?"gfw W
write("Hello, world!\n"); iBbaHU*V
return 0; :'C?uk ?
} %po;ih$jr*
^[HUtq
Y 'X!T8
PL/I "i/GzD7 `n
Test: procedure options(main); hDW_a y4
declare My_String char(20) varying initialize('Hello, world!'); wdBBx\FP
put skip list(My_String); 2ns,q0I
A
end Test; <@ ts[p.
l:eC+[_;>
36+/MvIT
Prolog R(^Sse
goal m]MR\E5]By
write("hello,world!"). 5Wa)_@qI)`
XA;PWl5!
\M@IKE
Python 2SD
Z
#!/usr/local/bin/python w/(T
print "Hello, world!" (n?f016*%d
!9$}1_,is
ineSo8| @
REXX 27c0wzq
say "Hello, world!" wk8fa
kjV>\e
VgYy7\?p
Ruby {[Ri:^nHgL
#!/usr/bin/ruby %pOz%v~
print "Hello, world!\n" SWI\;:k
dazML|1ow
6 *S/frE
Scheme NR_3nt^h
(display "Hello, world!") GiuE\J9i
(newline) `V V>AA5
iz/CC V L
|&MoQxw@
sed (需要至少一行输入) +,)k@OI
sed -ne '1s/.*/Hello, world!/p' `^8mGR>OpI
a1I-d=]
~Uv#)
Smalltalk LsIZeL^
Transcript show: 'Hello, world!' !BkE-9v?w
}DjVZ48
!\%JOf}
SNOBOL $+44US
OUTPUT = "Hello, world!" 13v`rK`7o
END +<xQF
-YQS\@?
;k#_/c
SQL RbxQTM_:M
create table MESSAGE (TEXT char(15)); YzZj=]\`b
insert into MESSAGE (TEXT) values ('Hello, world!'); -th.(eAx
select TEXT from MESSAGE; CckfoJ 9
drop table MESSAGE; Sft
vN-
|-\anby<
DPW^OgL;
Tcl x2)WiO/As
#!/usr/local/bin/tcl iExKi1knx
puts "Hello, world!" ^J7q,tvbJ
['\R4H!x
6q>iPK Jt
TScript K*Ba;"Ugeg
? "Hello, world!" !*&5O~dfN
{4vWSb
|#cqxr "
Turing iY@}Q "
put "Hello, world!" MH'%E^n `
<eSg%6z
=*ErN
UNIX-style shell h~
_i::vg
程序中的/bin/sh可改为您使用的shell l{8O'4;
g]z k` R5
#!/bin/sh B!quj!A
echo 'Hello, world!' <`vXyPA6
RY)x"\D
1:T"jsWw
GUI ET9tn1
yc7b%T*Y
Delphi BWYv.&