“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。 SSrYFu"
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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》。 42B_8SK
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以下是用不同语言写成的Hello World程序的几个例子: G_cWp D/
Ada jT:z#B%
with Ada.Text_Io; use Ada.Text_Io; + 7~u_J
procedure Hello is /$-Tg)o5i
begin v{2euOFE
Put_Line ("Hello, world!"); Kf>]M|G c
end Hello; u6#FG9W7
$>*TO1gb+
Y;I>rC(
汇编语言 P(|+1$#[
C]01(UoSZ
x86 CPU,DOS,TASM Pbo759q1
MODEL SMALL aK+jpi4?
IDEAL I UZ@n0/T
STACK 100H K (!+l
Tm) (?y
DATASEG kD?lMA__
HW DB 'Hello, world!$' a}p}G\b|
>Y>>lE!
k
CODESEG =[ZuE0c
MOV AX, @data iVdY\+N!<
MOV DS, AX "54t7
MOV DX, OFFSET HW &l-1.muQ
MOV AH, 09H 6 {j}Z*)m
INT 21H :*<UCn""
MOV AX, 4C00H N*$L#L$*
INT 21H V/,@hv`+
END Kh'7N!
MpCK/eiC
/&jh10}H
x86 CPU,GNU/Linux,NASM ~k[mowz0
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 40i]I@:JK
;Enter this into "hello.asm" then type: D *Hy 2eZ.
;"nasm -f elf hello.asm" xhTiOt6l
;"ld hello.o -o hello" >3SZD
;"./hello" yKb+bm&5:'
NpLO_-
section .data ;data section declaration |f}1bJE+
msg db 'Hello World!',0AH H4Lvw8G
len equ $-msg ;string length gq|]t<'
H="E#AC%8/
section .text ;code section declaration *Y\C5L]
global _start ;entry point (start of execution) {wq~+O
_start: mov edx,len ;string length 'jr[
?WQ
mov ecx,msg ;string start 9esMr0*=
mov ebx,1 ;file handle: stdout W!=X_
mov eax,4 ;sys_write xZc].l6
int 80h ;kernel system call X8uAwHa6F
y(92 Th$
mov ebx,0 ;return value EG;y@\]
mov eax,1 ;sys_exit GFX$vn-/F
int 80h ;kernel system call A^3M~
x(r~<a[
PYhRP00}M
x86 CPU,Windows,MASM32 2M`:/ shq
.386 r&0IhE
.model flat,stdcall >u=Dc.lX
option casemap:none tX'2 $}
;Include 文件定义 dd6m/3uUW
include windows.inc 9Z!|oDP-
include user32.inc +J;T= p
includelib user32.lib j8[RDiJ
include kernel32.inc 4apy {W
includelib kernel32.lib Wm#F~<$
;数据段 b>]MZhLJe
.data ~A-Y%P
szCaption db 'A MessageBox!',0 yR'%UpaE
szText db 'Hello,world!',0 kl+^0i
;代码段 !=SBeq
.code *+rWn*L
start: q1_iV.G<
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK mYRsM s
invoke ExitProcess,NULL vDit&Lh{T
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 7AouiL 2-W
end start CA[3R
A.wuB
yc:y}"
AWK k[<Uxh%
BEGIN { print "Hello, world!" } @q/E)M?
"x~su?KiA
>Y8\I
BASIC ]mZN18#
传统版BASIC(例如GWBASIC): \&#IK9x{
:rzq[J^
10 PRINT "Hello, world!" 5'%nLW7;O
20 END 4mM?RGWv
t,,W{M|E(
或在提示符输入: 6U(MHxY
qC:QY6g$N
?"Hello, world!":END jBLLx{
e4mAKB
s!
现代版BASIC(例如Quick BASIC): jn,_Ncd#
'5;
/V
Print "Hello, world!"
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LZ-&qh
以下的语句在Quick BASIC中同样有效: AdGDs+at,
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? "Hello,world!" bg/a5$t
|SSe n#PYp
<!G%P4)
BCPL [L`w nP
GET "LIBHDR" $Si|;j$?
==]BrhZK
LET START () BE e?yrx6
$( LE]mguvs
WRITES ("Hello, world!*N") RTQtXv6mD
$) -F~"W@9r
4uy:sCmu
O;8 3A
Befunge !HCuae3_
"!dlrow olleH">v =tQ^t4_
, zbgH}6b
^_@ ({!S!k
1G`zwfmh~
YDWV=/
Brainfuck `x:8m?q05
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< Z(wj5;[G
+++++++++++++++.>.+++.------.--------.>+.>. )Rc
~pWV[oUD
Tg _#z
C &OXm^f)K
#include <stdio.h> #dhce0m
y*7{S{9
int main(void) pSKwXx
{ ]@wKm1%v
printf("Hello, world!\n"); 5v_vv'~
return 0; 0i4XS*vPv
} o~`KOe
yBkcYHT
d3jzGJrU}
C++ ?, m_q+
#include <iostream> p:?h)'bA<
\PL0-.t,
int main() 'aqlNBG*
{ w0&|8y
std::cout << "Hello, world!" << std::endl; Y{D?&x%yq
return 0; =x3T+)qCNX
} %}[/lIxaE
{'NXJ!I;t
$i;m9_16
C++/CLI \IX|{]*D
int main() PTP0 _|K
{ ##5e:<c&[
System::Console::WriteLine("Hello, world!"); GWW#\0*Bn
} a%*W(
4=Y
sa
w
|*>s%nF|
C# (C Sharp) #I}w$j
i
class HelloWorldApp b"pN; v
{ /C6$B)w_*{
public static void Main() 34:Y_*
{ 2OZ<t@\OY
System.Console.WriteLine("Hello, world!"); L#MgoBXr
} 9+"ISXS
} `;)op3A'
GV8`.3DBOF
=<[M$"S7d6
COBOL w[]\%`69}Z
IDENTIFICATION DIVISION. 7RCVqc"
PROGRAM-ID. HELLO-WORLD. z`:tl7
F~C7$
ENVIRONMENT DIVISION. J*D3=5&
OICH:(t_
DATA DIVISION. MmH(dp+
Y$0K}`{
PROCEDURE DIVISION. [oG
Sy5bB
DISPLAY "Hello, world!". d$B+xW
STOP RUN. %0q)PT\
3eN(Sw@p
<RCeY(1
Common Lisp AsO)BeUD
(format t "Hello world!~%") t*wV<b
n'9&q]GN|
M,sZ8eeq
DOS批处理 `N;O6
wZ
@echo off CF]#0*MI
echo "Hello, world!" ffG1QvC|M
cpu|tK.t
q854k+C
Eiffel 3(3-#MD0
class HELLO_WORLD N[&(e
d=
|\T!,~
creation v(`5exWV
make }WnoI2
feature chXTFLC~
make is WQBpU?O
local aC#{@t
io:BASIC_IO %`0*KMO3
do $g '4'
!!io sNs Hl
io.put_string("%N Hello, world!") 4XNkto
end -- make :wz]d ~)
end -- class HELLO_WORLD I<!,_$:
R_gON*9
HY,VJxR[
Erlang sWFw[Y>
-module(hello). @<z#a9
-export([hello_world/0]). xV.UM8
hx
hs>eY
hello_world() -> io:fwrite("Hello, World!\n"). >o5eyi
^w*&7.Z
Y@MFH>*
Forth AH|'{
." Hello, world!" CR !m?W+z~J
cv9-ZOxJ
;"]?&ri
Fortran TlpQ9T
WRITE(*,10) @vPGkM#oW
10 FORMAT('Hello, World!') ]69z-;
STOP C
A $R
END I&>5b7Uf
cdTG ]n
MrhJk
HTML Hh'o:j(^
<HTML> B&?xq)%*#
<HEAD> G\#dMCk?
<TITLE> Hello World! </TITLE> K-n]m#U4o
</HEAD>
\z? -
<BODY> Oee>d<
<p>Hello World!</p> @!::_E+F]
</BODY> ^3ysY24 Q
</HTML> Kgb<uXk
C8$/z>tQ
ZmZ7E]c
HQ9+ r?}L^bK
H ew1bb K>
&?M'(` ~
=|qYaXjT$
INTERCAL $O, IXA
PLEASE DO ,1 <- #13 7%yP5c
B
DO ,1 SUB #1 <- #238 gPF5|% 3)
DO ,1 SUB #2 <- #112 hEAP,)>F
DO ,1 SUB #3 <- #112 w%eEj.MI|i
DO ,1 SUB #4 <- #0 iJzW3%E
DO ,1 SUB #5 <- #64 ~"22X`;h[G
DO ,1 SUB #6 <- #238 Eg0qY\'
DO ,1 SUB #7 <- #26 e89IT*
DO ,1 SUB #8 <- #248 6&L8{P
DO ,1 SUB #9 <- #168 G`NGt_C
DO ,1 SUB #10 <- #24 #.|MV}6rQ
DO ,1 SUB #11 <- #16 !L@^Zgs|@?
DO ,1 SUB #12 <- #158 A2"$B\j1
DO ,1 SUB #13 <- #52 3`{[T17
PLEASE READ OUT ,1 cLm{gd4 W
PLEASE GIVE UP 0b+End#mp
;c|G
4n/CSAT1
Java <v$yXA
public class Hello :2-!bLo}&
{ M][Zu[\*
public static void main(String[] args) GL3olKnL
{ C[nacAi
System.out.println("Hello, world!"); T9]:,
z
} xcC^9BAj
} &u0on)E
kRB2J3Nt.
|1UJKJwX
JSP 92g&,Wb
<% {
u1\M
out.print("Hello, world!"); MJG)fFl]O
%> nj7\vIR7
jT:kk
]`\~(*;[W9
MIXAL WxS$yUu
TERM EQU 19 the MIX console device number 9P# <T7
ORIG 1000 start address 6adXE
START OUT MSG(TERM) output data at address MSG B2)SNhF2Y
HLT halt execution ?#VkzT
MSG ALF "MIXAL" Fr]B]Hj
ALF " HELL" b_-?ZmV^r
ALF "O WOR" p"o_0{8
ALF "LD " #i|AE`
END START end of the program o'!WW
5+Hw @CY3
c8M'/{4rH
Nuva TbR!u:J
<..直接输出..> (kZ2D
Hello, world! R%)7z)~
R2dCp|6A
<..或者..> -+&sPrQ
Xv?'*2J
<. |Whkq/Zg
// 不带换行 !T1)tGrH
? "Hello, world!" !z?;L_Lb
A9ru]|?
// 或者 %<;PEQQ|C
_2nNCu (
// 带换行 mY!&*nYn|
?? 'Hello, world!' ,B$m8wlI|
.> L=<{tzTc
;p/$9b.0:
$qfNEAmDf\
OCaml PVX23y;
let main () = eC*-/$D
print_endline "Hello world!";; Gcd'- 1
2JLXDkZ
nVv=smVOt
Pascal KmaMS(A(3
program Hello; 8eZ^)9m
begin Bey|f/
<
writeln('Hello, world!'); 1|3{.Ed
end. .eG_>2'1
KU)~p"0[6]
^fT?(y_=e
Perl *N3X"2X:
#!/usr/local/bin/perl rT28q.
print "Hello, world!\n"; +<\.z*
W,p?}KiO
T
VVm8bl.q
PHP pXq5|,aC
<?php ,|Lf6k
print("Hello, world!"); 7Un5Y[FZo
?> _J-3{a
`T~~yM)q
rd!4u14
Pike g;t>jgX
#!/usr/local/bin/pike l|'{Cb
int main() 1g bqHxWI
{ -+Ab[
write("Hello, world!\n"); s.KHm
L3
return 0; ew\ZF qA;
} Q*l_QnfG
+!)v=NY
GN@(!V#/4
PL/I wU)vJsOq
Test: procedure options(main); +N>&b%
declare My_String char(20) varying initialize('Hello, world!'); oO~LiK>
put skip list(My_String); @/0-`Y@?
end Test; ^{w]r5d
;_?RPWZ;MO
o+
0"@B
Prolog H?W8_XiN
goal hF7#i_UN<
write("hello,world!"). 4/ M~#
2N[S*#~*e
I,wgu:}P#
Python <-K'9ut,
#!/usr/local/bin/python DW.vu%j^[
print "Hello, world!" {G(N vf,K]
6A*k
vILq5iR
REXX 3v7*@(y
say "Hello, world!" H3qM8_GUA
Hv.nO-c
ecG,[1];
Ruby 3F|#nq
#!/usr/bin/ruby b$G&i'd
print "Hello, world!\n" z 2Rg`1B
)TV{n#n
R3ru<u>k&
Scheme sqP (1|9
(display "Hello, world!") 1*ui|fuK
(newline) <zh N7="
C
lekB
Mo_(WSs
sed (需要至少一行输入) "0#d F:qt
sed -ne '1s/.*/Hello, world!/p' H:>i:\J/M9
1.y|bB+kB
K`#bLCXEV0
Smalltalk N)N\iad^
Transcript show: 'Hello, world!' y:+4-1
f*&4d
@ob4y
SNOBOL ( zL(
OUTPUT = "Hello, world!" }[m,HA<j
END _"R /k`8
TSHQ>kP
m C&*K
SQL \C.s%m
create table MESSAGE (TEXT char(15)); w5tcO%+k1
insert into MESSAGE (TEXT) values ('Hello, world!'); qKL
mL2O
select TEXT from MESSAGE; N56/\1R
drop table MESSAGE; \c.MIDp"
"g>, X[g
)T26cT$
Tcl wtpz ef=
#!/usr/local/bin/tcl C!Oz'~l
puts "Hello, world!" .PJCBTe
LIZsDTU
XAF*jevr
TScript qH1&tW$
? "Hello, world!" }:2GD0Ru
,/bv3pE
d2XSw>
Turing ,U^V]jC
put "Hello, world!" m"y_@Jk
L?slIGp%-
-U#e
UNIX-style shell TaI72"8
程序中的/bin/sh可改为您使用的shell #2\
0#HN
xpjv@P
#!/bin/sh aHdXlmL
echo 'Hello, world!' D?:AHj%gW
? <"H Io
s2rwFj8 |
GUI qkk!1W
?z$^4u3
Delphi IGC:zZ~z
program HelloWorld; Gl@}b\TB
uses OELh6R
Dialogs; ~M!s0jT
begin ]= nM|e
ShowMessage('Hello, World!'); Sdn4y(&TP
end. Td"_To@jd
"cVJqW
K~DQUmU@
Nuva "ke>O'
<. g=5vnY
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) XV|u!'Ey
.> _2N7E#m" S
"Smek#l
dnW #"
Visual Basic g4-UBDtYt
MsgBox "Hello, world!" ^<