“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。 (CsD*U`h
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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》。 %@.v2 cT
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以下是用不同语言写成的Hello World程序的几个例子: :P<]+\m
Ada KU8Jbl*
with Ada.Text_Io; use Ada.Text_Io; B5X(ykaX~
procedure Hello is f6p-s
y>
begin G5CI<KRK#
Put_Line ("Hello, world!"); *q()f\
end Hello; r7b1-
R:#k%}W
+R|z{M)*
汇编语言 CitDm1DXt/
}[4r4 1[
x86 CPU,DOS,TASM ~g5[$r-u-u
MODEL SMALL 8=gjY\Dp
IDEAL sOU1n
STACK 100H 4|CtRF<L
K#pNec
DATASEG LN@F+CyDc
HW DB 'Hello, world!$' |NpP2|4h
\4v]7SV
CODESEG (H
->IV
MOV AX, @data PK0%g$0
MOV DS, AX BFo5\l:q8
MOV DX, OFFSET HW /7}It$|nhy
MOV AH, 09H [[;e)SoA
INT 21H T~Gvp0r}h
MOV AX, 4C00H "x 3lQ
INT 21H )XYv}U
END fSs4ZXC
R,pX:H+
TrLu~4
x86 CPU,GNU/Linux,NASM U$_xUG
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). mg*qiScfW
;Enter this into "hello.asm" then type: UFp,a0|
;"nasm -f elf hello.asm" [3{W^WSOz
;"ld hello.o -o hello" joiL{
;"./hello" 4cl\^yD
%F-ZN^R
section .data ;data section declaration kPF9Z "l
msg db 'Hello World!',0AH X@K-^8
len equ $-msg ;string length wtH?
[>S;)
YKO){f5
section .text ;code section declaration
@I_8T$N=
global _start ;entry point (start of execution) %*`J k#W:
_start: mov edx,len ;string length UrYZ`J
mov ecx,msg ;string start QlO0qbG[y
mov ebx,1 ;file handle: stdout \E%'Y
mov eax,4 ;sys_write E
,|xJjh
int 80h ;kernel system call )6|yb65ZUX
S"OR%
mov ebx,0 ;return value Aq0S-HKF
mov eax,1 ;sys_exit >rJnayLF
int 80h ;kernel system call S$Q8>u6Wk
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eS<lwA_
x86 CPU,Windows,MASM32 @8;W \L$~1
.386 3b+d"`Y^S
.model flat,stdcall iVy7elT;R
option casemap:none <;#~l*
;Include 文件定义 &!/}Qp
include windows.inc Qzlo'e1
include user32.inc ?q;Fp
includelib user32.lib ReM=eS
include kernel32.inc d*~ICir7
includelib kernel32.lib Db;G@#x
;数据段 L"{JRbh[
.data ;)!Sp:mHX
szCaption db 'A MessageBox!',0 b0Kc^uj5
szText db 'Hello,world!',0 &:, dJ
;代码段 0Sgaem`
.code :yeq(oK,
start: 8;Yx<woR
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK {
T-'t/0e(
invoke ExitProcess,NULL Gcig*5
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> D (h18
end start &8] d }-e
HmiJ~C_v`:
+;#Y]xy:
AWK XI22+@d6
BEGIN { print "Hello, world!" } ]K/DY Do-
'+$EhFwD
*T~Ve;3h;
BASIC dVsE^jsL
传统版BASIC(例如GWBASIC): $D}{]MN.
/XhIx\40l
10 PRINT "Hello, world!" =u+d_'P7-R
20 END .8y3O]
lsy?Ac
或在提示符输入: t=-SH^$SR
1$%V{4bJ
?"Hello, world!":END +eX@U;J,g
qeL5D*
现代版BASIC(例如Quick BASIC): JvT"bZk(o
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Print "Hello, world!" 2U; t(,dn'
|m80]@>
以下的语句在Quick BASIC中同样有效: XI9js{p
,B0_MDA +
? "Hello,world!" 8[J}CdS
/ig:9R
D,g1<:<
BCPL nSkPM5\TI
GET "LIBHDR" %YSu8G_t
jSwf*u
LET START () BE ;ByOth|9P
$( /6h(6 *JI
WRITES ("Hello, world!*N") ^9ePfF)5
$) ;uW}`Q<
LWHd~"eU
qHP78&wUx
Befunge yq NzdzX
"!dlrow olleH">v Wh%ucX&
, T+<A`k: -
^_@ k31I ysh
4=Krq6{
H8`(O"V
Brainfuck iTV) NsC}
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< V2i@.@$j
+++++++++++++++.>.+++.------.--------.>+.>. _<NMyRJo
Vgyew9>E
6p?JAT5
C ,I_^IitN
#include <stdio.h> Hf vTxaK
Ie4 hhW
int main(void) S}ECW,K
{ WN_pd%m
printf("Hello, world!\n"); TW9WMId
return 0; h<SQL97N
} Ko/ I#)
jMN[J|us51
,i,q!M{-
C++ 8WXJ.
#include <iostream> yNqe8C,>e
vMs$ceq
int main() [g Z"a*
{ ty*@7g0k
std::cout << "Hello, world!" << std::endl; pTyi!:g3W
return 0; L0tAgW!@
} A^2Uzmzl?
&g~ wS@
0#YX=vjX7
C++/CLI _Jt 2YZdA
int main() hwIMn33
{ ZU9c 5/J
System::Console::WriteLine("Hello, world!"); A6pjRxg
} LI6hEcM=
Wf&W^Q
!\,kZ|#>
C# (C Sharp) e4z1`YLsG
class HelloWorldApp ^=^z1M2P
{ k!KDWb
public static void Main() !DI{:I_h(
{ pKjoi{
Z
System.Console.WriteLine("Hello, world!"); wj1{M.EF\
} o)[2@fRC(
} }oKG}wgY
?&^?-S% p
a
/:@"&Y
COBOL bgK<pi)d
IDENTIFICATION DIVISION. pOrWg@<\L
PROGRAM-ID. HELLO-WORLD. Xe^Cn
R
,s_T pq
ENVIRONMENT DIVISION. E gDQ+(
-
H=\!2XS
DATA DIVISION. WzI8_uM
fS"Hr 0
PROCEDURE DIVISION. W5' 3$,X9
DISPLAY "Hello, world!". +\{&2a?
STOP RUN. Kmdlf,[3d
RJON90,J
Qo1eXMW
Common Lisp 60)iw4<wf
(format t "Hello world!~%") KV*xApb9y
}irn'`I
DS%\SrC
DOS批处理 fVM`-8ZTq
@echo off 2AVa(
echo "Hello, world!" 4j!]:ra
a !mf;m
[F[K^xYTlg
Eiffel 1<<kA:d
class HELLO_WORLD \ AC|?/sH
S#-tOjU*
creation wV)}a5+
make \xUe/=
feature Dr~=o%
make is /^ " 83?_
local R i'L
io:BASIC_IO .y&QqxiE
do \G2B?>E;
!!io P@]8pIB0d^
io.put_string("%N Hello, world!") Hku!bJ
end -- make 6y5A"-
end -- class HELLO_WORLD thqS*I'#g
+~ #U7xgq/
tWdhDt8$&
Erlang Fbp{,V@F2
-module(hello). w?,M}=vg
-export([hello_world/0]). KnNh9^4"\2
}rdIUlVO\
hello_world() -> io:fwrite("Hello, World!\n"). 4A3nO<oMF
i#%a- I:M
wfjc/u9W6R
Forth ?~QIALA
." Hello, world!" CR
4\&
8v)_6p(<x8
EOoZoVdzx
Fortran >z`,ch6~
WRITE(*,10) A, PlvI
10 FORMAT('Hello, World!') RuG-{NF{F
STOP +]@Az.E
END cM_Fp
Zh/Uu6
=5sF"L;b
HTML %G@5!|J
<HTML> YUdxG/~'
<HEAD> ,b$2= JO'f
<TITLE> Hello World! </TITLE> '&;69`FSe
</HEAD> -[Qvg49jy
<BODY> R4<lln:[
<p>Hello World!</p> =D^TK-H
</BODY> s6}Xt=j
</HTML> ?QA\G6i4
!4rPv\
G^(}a]>9
HQ9+
1KYN>s:
H a?R[J==
0~ &"
T|"7sPgGR
INTERCAL Se!)n;?7Sw
PLEASE DO ,1 <- #13 |fHB[ W#
DO ,1 SUB #1 <- #238 >bUj*#<
DO ,1 SUB #2 <- #112 w18RA#Zo/
DO ,1 SUB #3 <- #112 9Z6C8Jv
DO ,1 SUB #4 <- #0 u7;~
DO ,1 SUB #5 <- #64 Y&2aO1
DO ,1 SUB #6 <- #238 ba@=^Fa;
DO ,1 SUB #7 <- #26 IOK}+C0e
DO ,1 SUB #8 <- #248 Uw<&Wm`'
DO ,1 SUB #9 <- #168 x>~p;z#VX
DO ,1 SUB #10 <- #24 SLhEc
DO ,1 SUB #11 <- #16 fB+b}aoV
DO ,1 SUB #12 <- #158 ap}5ElMR
DO ,1 SUB #13 <- #52 YGsS4ia*4i
PLEASE READ OUT ,1 L"<B;u5pM
PLEASE GIVE UP f'6|OsVQ
:h:@o h_=
somfv$'B
Java )uLr?$qe
public class Hello ;:mY JV
{ [k]|Qink
public static void main(String[] args) nVD Xj
{ T!Sj<,r+j
System.out.println("Hello, world!"); eu'1H@vX(
} Iwpbf Z
} Qeb}!k2A
&D#+6M&LK{
r?l;I3~
JSP <1&Ke
<% )uP[!LV[e
out.print("Hello, world!"); =w<v3 wWN4
%> 1'G8o=~
%q_Miu@
50a\e
MIXAL !6w{(Rc(C
TERM EQU 19 the MIX console device number 0W>9'Rw
ORIG 1000 start address a-n4:QT
START OUT MSG(TERM) output data at address MSG D{'#er
HLT halt execution &HM-g7|C0E
MSG ALF "MIXAL" 4%*hGh=
ALF " HELL" /!Z^Y
ALF "O WOR" eFTX6XB:i
ALF "LD " &14W vAU
END START end of the program v&3O&y/1v
83.E0@$
]#<
Nuva i9UI,b%X
<..直接输出..> uv4 _:
Hello, world! Wn!G.(Jq
3z{S}~
<..或者..> F?Or;p5`Y
AV @\ +0
<. G5Q!L;3HZ
// 不带换行 9e<Zgr?N
? "Hello, world!" # nfI%
7SI)1_%G
// 或者 Vos?PqUi 4
ykq'g|
// 带换行 .V%*{eHLL
?? 'Hello, world!' ;Mj002.\G
.> wVi%oSfM
\Kd7dK9&]
~"ONAX
OCaml ${U6=
let main () = {TZE/A3D,
print_endline "Hello world!";; u9![6$R
<?$kI>Ot
|0{ i9.=
Pascal Kla:e[{
program Hello; 6CNS%\A
begin 0^]t"z5f0
writeln('Hello, world!'); w1B<0'#
end. LCQkgRs}~{
^i<}]c_|f
;mO,3dV
Perl ]5|z3<K^
#!/usr/local/bin/perl 2H&{1f\Bf
print "Hello, world!\n"; p27p~b&
2
X<nn
2ALj}
PHP 7o{*Z
<?php da*9(!OV
print("Hello, world!"); lSc,AOXp
?> w)S; J,Hv
/BzA(Ic/
I$N7pobh
Pike 6tOi^+qN
#!/usr/local/bin/pike 5_G'68;OV
int main() J0Four#MD
{ ,0T)Oc|HL/
write("Hello, world!\n"); o_yRn16
return 0; ]+IVSxa!u
} "2h5m4
#t5juX9Ho9
9YSVK\2$
PL/I |vy]8?Ak
Test: procedure options(main); <`JG>H*B6
declare My_String char(20) varying initialize('Hello, world!'); !C7<sZ`C
put skip list(My_String); n0.8)=;2
end Test; rrQ0qg
",Wf uz
L_*L`!vQA"
Prolog ?@a$!_
goal {v+a!#{c7
write("hello,world!"). ^\YQ_/\~L
}%{=].)L
3%NE/lw1
Python K<,Y^3]6?
#!/usr/local/bin/python w2)/mSnu
print "Hello, world!" -fM1$/]
0^>E`/
v:P!(`sF
REXX hCLk#_
say "Hello, world!" ~'f8L#[M
ct\<;I(H
0=m&^Jpp
Ruby psD[j W
#!/usr/bin/ruby R+^z y"~
print "Hello, world!\n" oWcACs3fB
yGV{^?yoP
b@-)Fy4d2
Scheme luF#OP C
(display "Hello, world!") $f(agG]
(newline) G4yUC<TqBP
-ddOh<U>
!?r/ 4
sed (需要至少一行输入) [i9[Mj
sed -ne '1s/.*/Hello, world!/p' /$OIlu
9&(.x8d,a
wrK#lh2
Smalltalk ork|yj/A
Transcript show: 'Hello, world!' w?;b7i
1OPfRDn.bk
N K"%DU<
SNOBOL [Ye5Y?
OUTPUT = "Hello, world!" QAXYrRu
END 7+S44)w}~
Qy%xL9
sVD([`Nmc
SQL i -V0Lm/
create table MESSAGE (TEXT char(15)); -t b;igv
insert into MESSAGE (TEXT) values ('Hello, world!'); 'X ~Ab
select TEXT from MESSAGE; 2e\Kw+(>{
drop table MESSAGE; MVuP
|&:n
7X:hIl
ypT9 8
Tcl &O{t^D)F
#!/usr/local/bin/tcl jhcuK:`L
puts "Hello, world!" h~.V[o7=
/p[y1
)Jz !Ut
TScript }JJ::*W2n
? "Hello, world!" DzmqR0)
E$&;]a
.)nCOwR6p
Turing HqDa2q4
put "Hello, world!" (T2<!&0 @
1Y2a*J
M->Kz{h?j
UNIX-style shell 4=
$!_,.
程序中的/bin/sh可改为您使用的shell jM;d>Gymx
^X(_zinN"
#!/bin/sh [sptU3,2U
echo 'Hello, world!' TQ2i{e
$WM8tF?H
sK[Nti0
GUI 0Sz/c+ 6
?bCTLt7k
Delphi ]N_140N~
program HelloWorld; ?xf~!D
uses aH9L|BN*
Dialogs; )rS^F<C
begin 2PI #ie4
ShowMessage('Hello, World!'); B4 <_"0
end. OT"lP(,
]:Wb1
R=QM;
Nuva 0YHYx n
<. 3dY6;/s
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) p\)h",RkA
.> np&HEh 6
$&NbLjeS
>0ssza
Visual Basic =1_j aDp
MsgBox "Hello, world!" ),z,LU Yf
'或者 2@4MC`&