“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。 YeB C6`7y
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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》。 O.aAa5^uh
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以下是用不同语言写成的Hello World程序的几个例子: x/0x&la
Ada z_8Bl2tl
with Ada.Text_Io; use Ada.Text_Io; =CL,+
procedure Hello is psS^
begin $-E<{
Put_Line ("Hello, world!"); "'>fTk_
end Hello; r8A'8g4cM
FtWO[*#
rAgp cp}
汇编语言 e0#{'_C
DnN+W
x86 CPU,DOS,TASM "k),;1
MODEL SMALL j}8^gz]
IDEAL }Fu2%L>
STACK 100H t=[/L]!
QEmktc1 7
DATASEG E#kH>q@K`$
HW DB 'Hello, world!$' 5F:\U
U)z1RHP|z
CODESEG JBISA _Y
MOV AX, @data hG}/o&}U
MOV DS, AX s GrI%3[e"
MOV DX, OFFSET HW %H}M[_f
MOV AH, 09H 2 m72PU<.
INT 21H dE(d'*+a
MOV AX, 4C00H p%OVl[^jp
INT 21H $=C `V
END gUp9yV
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l8lJ &
x86 CPU,GNU/Linux,NASM *LvdrPxU=
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). UG6\OgkL+
;Enter this into "hello.asm" then type: 9s*UJIL
;"nasm -f elf hello.asm" paxZlA
o
;"ld hello.o -o hello" #EH\Q%
;"./hello" TI8EW
0bGQO&s
[
section .data ;data section declaration C{6m?6
msg db 'Hello World!',0AH swhtlc@@
len equ $-msg ;string length CT|H1Ry2T
!Z; Nv
section .text ;code section declaration x+1-^XvK
global _start ;entry point (start of execution) LC0-O1
_start: mov edx,len ;string length |J^I8gx+
mov ecx,msg ;string start nH[>Sff$
mov ebx,1 ;file handle: stdout HaOSFltf#
mov eax,4 ;sys_write Qk^}
int 80h ;kernel system call r&XxF>
:vC+}.{p
mov ebx,0 ;return value MOIVt) ZY
mov eax,1 ;sys_exit EV~?]Kt~
int 80h ;kernel system call ;uuBX0B
HZ\=NDz
+H!aE}
x86 CPU,Windows,MASM32 GU xhn
.386 I#zL-RXT
.model flat,stdcall YDEb MEMd/
option casemap:none *#'&a(hB!
;Include 文件定义 >SD?MW1E
include windows.inc v\XO?UEJ2
include user32.inc 1ay{uU!EL
includelib user32.lib L-e6^%eU
include kernel32.inc vNU[ K%U
includelib kernel32.lib fqol-{F.V
;数据段 D6EqJ,~
.data AgdU@&^
szCaption db 'A MessageBox!',0 ulk yP
szText db 'Hello,world!',0 o* QZf*M
;代码段 u 0 K1n_
.code QW%xwV?8
start: QX9['B<
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK 6%T_;"hb
invoke ExitProcess,NULL -"xC\R
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> -}Rh+n`
end start _%aT3C}k
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hud'@O"R+
AWK ,9.NMFn
BEGIN { print "Hello, world!" } 0fR?zT?
D\sh
+}"
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BASIC ab<7jfFIa
传统版BASIC(例如GWBASIC): 9cMMkOM J
(HeIO
10 PRINT "Hello, world!" :NWrbfz
20 END 83{v_M
@OC*:?!4
或在提示符输入: /?6
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?"Hello, world!":END SxM5'KQ
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现代版BASIC(例如Quick BASIC): 0-U%R)Q
v1E(K09h2
Print "Hello, world!" JRw)~Tg @
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以下的语句在Quick BASIC中同样有效: 46c0;E\9
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? "Hello,world!" "ScY'<
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E~,Wpl}
BCPL <*$IZl6I
GET "LIBHDR" &>hln<a>
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LET START () BE 8#a2 kR<b
$( $yMNdBI[
WRITES ("Hello, world!*N") ?w@KF%D
$) jiLt *>I
Oxh.&
97VS
xhr
Befunge 6x!
q
"!dlrow olleH">v q.p.y0
, >zv}59M
^_@ UC"_#!3
{s[,CUL0
h/#s\>)T
Brainfuck X(K5>L>
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< )<%IY&\
+++++++++++++++.>.+++.------.--------.>+.>. K_BF=C.k
{`[u XH?3d
z)pp{
C rh(77x1|(G
#include <stdio.h> `~ R%}ID
M{U7yE6*j*
int main(void) MY>o8A
{ u-~?ylh
printf("Hello, world!\n"); @!Q\|
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return 0;
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} I~7eu&QZ
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irzWk3@:
C++ o!|TCwt
#include <iostream> ,"4
b/'RJQSAc
int main() q,_ 1?A)
{ 7j\jOklV
std::cout << "Hello, world!" << std::endl; ITEd[
@^d
return 0; :8Jn?E (36
} >*[Bq;
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-8, lXrH
C++/CLI %!Ak]|[7
int main() P 4jg]g
{ 4 O~zkg
System::Console::WriteLine("Hello, world!"); wLH[rwPr
} n$(_(&
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ADN
C# (C Sharp) m=%WA5c?
class HelloWorldApp Ptv=Bwg
{ 28PT19&
public static void Main() t0gLz
J
{ k/}E(_e
System.Console.WriteLine("Hello, world!"); POc-`]6<F
} Q:!.YSB
} M}tr*L
GOhGSV#
bZ*J]1y(.
COBOL L;k9}HWpP
IDENTIFICATION DIVISION. 06S-3bis
PROGRAM-ID. HELLO-WORLD. N6_<[`
A!j6JY.w
ENVIRONMENT DIVISION. I^fKZ^]8P
QBfsdu<@^
DATA DIVISION. 'Ijjk`d&c
!&OybjQ
PROCEDURE DIVISION. dD0:K3@
DISPLAY "Hello, world!". ~T<o?98
STOP RUN. y%x2
^3
'7
4zM$I
Common Lisp ?Wm.'S'to
(format t "Hello world!~%") ?-IjaDC}
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:TzHI
DOS批处理 d*xKq"+
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@echo off 6P KH%
echo "Hello, world!" 4RV5:&ALLS
o Z#4<7K
tMWsgK.B
Eiffel 8P'zQ:#RV
class HELLO_WORLD -hIDL'5u-I
i''[u
creation
L5tSS=
make 5w+X
feature h&}XG\ioNA
make is F7zBm53
local 4^mpQ.]lO
io:BASIC_IO Cp2$I<T
do @<
@\CiM
!!io ^q0Ox&X
io.put_string("%N Hello, world!") 0*KU"JcXd
end -- make [LJ1wBMw
end -- class HELLO_WORLD T};fy+iq
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r!vSYgee
Erlang ;8
D31OT
-module(hello). 7TjK;w7xS.
-export([hello_world/0]). 7#BpGQJQ
hw [G
hello_world() -> io:fwrite("Hello, World!\n"). K2glkGK
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Sm
R8lBhLs
Forth 45;{tS.z,B
." Hello, world!" CR vNJ!d
ta-kqt!'
jJF(*D
Fortran Qr4c':8
WRITE(*,10) Gdd lB2L)x
10 FORMAT('Hello, World!') W=$d|*$
STOP tNI~<#+lg
END p Rn vd|
pZ,P_?
C1@6r%YD
HTML <-:gaA`KM
<HTML> |3?q L
<HEAD> O)qedy*&
<TITLE> Hello World! </TITLE> p9[J9D3~
</HEAD> > T,^n
{_v
<BODY> 0b0.xz\~U
<p>Hello World!</p> K 5SHt'P
</BODY> d&x1uso%L
</HTML> 5};Nv{km^2
)kSE5|:pi
b=!G3wVw<
HQ9+ mV0.9pxS
H p}j$p'D.RI
n)(E 0h
4{d!}R
INTERCAL p<\yp<g
PLEASE DO ,1 <- #13 `4&
GumG
DO ,1 SUB #1 <- #238 (0Xgv3wd
DO ,1 SUB #2 <- #112 U!L<v!$
DO ,1 SUB #3 <- #112 e?%Qv+)W
DO ,1 SUB #4 <- #0 =Zcbfo_&
DO ,1 SUB #5 <- #64 $ 4\,a^
DO ,1 SUB #6 <- #238 ]C =+
DO ,1 SUB #7 <- #26 q1Vh]d
DO ,1 SUB #8 <- #248 i6p0(OS&D
DO ,1 SUB #9 <- #168 -o\r]24
DO ,1 SUB #10 <- #24 FL+^r6DQ
DO ,1 SUB #11 <- #16 .FS`Fh;
DO ,1 SUB #12 <- #158 vt3yCS
DO ,1 SUB #13 <- #52 w6MEY"<L
PLEASE READ OUT ,1 G(-1"7
PLEASE GIVE UP *5bKJgwJ
c[4H
!Qu)JR
Java /XG4O
public class Hello iD)R*vnAi
{ ^@'LF
T)
public static void main(String[] args) e'I13)
{ x(nWyVB
System.out.println("Hello, world!"); w1-/U+0o
} -,t2D/xK
} Q
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oGi;S ="I
8m0GxgS
JSP F)mlCGv:R
<% T&Y?IE}
out.print("Hello, world!"); f>Mg.9gJ(
%> 51Yq>'8
iEG`+h'
)6# i>c-
MIXAL -v *wT*I1
TERM EQU 19 the MIX console device number &<Bx1\ ~V
ORIG 1000 start address 0Bx.jx0?
START OUT MSG(TERM) output data at address MSG ^1rw\Zp
HLT halt execution ,
4Vr,?"EO
MSG ALF "MIXAL" 2 w2JFdm
ALF " HELL" Dz4fP;n
ALF "O WOR" ~l~ai>/
ALF "LD "
}xcEWC\
END START end of the program
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t =ErJ
-MrEJ
Nuva 0#~e KFy
<..直接输出..> FpjpsD~Qu
Hello, world! **L . !/
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<..或者..> d^"<Tz!
*xxG@h|5n
<. 9IgozYj
// 不带换行 I4kN4*d!N,
? "Hello, world!" v%(2l|M
`}/&}Sp
// 或者 -AUdBG
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// 带换行 P8jXruZr
?? 'Hello, world!' "wi=aV9j
.> Iy\{)+}aS
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q(0V#kKC
OCaml (B@:0}>
let main () = H tIl;E
print_endline "Hello world!";; Fv \yhR
-EV_=a8[y
\hpD
Pascal )BR6?C3
program Hello; './j<2|;U
begin `a}!t=~#w
writeln('Hello, world!'); qkpnXQ
end. tgn_\ - +
ob=GB71j55
f!;4-.p`
Perl [U_Su,
#!/usr/local/bin/perl ViqcJD
print "Hello, world!\n"; : E`N0UA
"V!y"yQ
"G\OKt'Z
PHP N>?R,XM
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<?php lYkm1
print("Hello, world!"); @}:}7R6
?> nd(O;XBI
wykk</eQ.i
-=aI!7*"$
Pike *k:Sg*neVq
#!/usr/local/bin/pike gz6BfHQG
int main() G*_$[| H
{ ^a~^$PUqI
write("Hello, world!\n"); ~W'>L++
return 0; ,6Ulj+l
} A+d&aE}3V
_
F&BSu
/PbN!r<1
PL/I {7!WtH;-
Test: procedure options(main); +qsNz*@p"
declare My_String char(20) varying initialize('Hello, world!'); ]r;-Lx{F
put skip list(My_String); ydOJ^Yty
end Test; j,")c'r&dD
.Cfi/
n:cre}0.
Prolog $ qk2!
goal 2
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write("hello,world!"). }ie\-V
zoYw[YP 9
ml$"C
Python mF\r]ovVm
#!/usr/local/bin/python {S4^;Va1
print "Hello, world!" Iuk!A?XV
epa)~/sA
.K>rao'
REXX &UtsI@Mu
say "Hello, world!" /7Z;/|oU
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)0Av:eF-+
Ruby 2Uf]qQ1
#!/usr/bin/ruby a>jiq8d]4
print "Hello, world!\n" B.nq3;Y
YK Nz[x$|
<igsO
Scheme HY[eo/nM1d
(display "Hello, world!") {U?UM
(newline) N0EJHS,>e
C.M]~"e
Yhu
6QyRV
sed (需要至少一行输入) 9l9h*Pgt
sed -ne '1s/.*/Hello, world!/p' bd],fNgJ
^i}*$ZC72
|` gSkv
Smalltalk ajFSbi)l
Transcript show: 'Hello, world!' !e*BQ3
umV5Y`
S EdNH.|I
SNOBOL bM`7>3
d7E
OUTPUT = "Hello, world!" |,k,X}gP
END u`Kjs}F'
_:|/4.]`_
\Q[u ?/TF
SQL C"w>U
create table MESSAGE (TEXT char(15)); "NqB_?DT
insert into MESSAGE (TEXT) values ('Hello, world!'); {J-kcD!bz`
select TEXT from MESSAGE; "]|I;I"b
drop table MESSAGE; 6X{RcX]/
.s7Cr0^k,|
sG{hUsPa
Tcl [hU5ooB
#!/usr/local/bin/tcl VY }?Nb<&
puts "Hello, world!" Y/Yp+W6n
?rqU&my S
bN-ljw0&
TScript I6}ineps
? "Hello, world!" p7y8/m\6
dY>oj<9
A
i`
Turing PfKIaW<
put "Hello, world!" =#qf0
Vm
NCknG
?`%7Y~
UNIX-style shell >*v!2=
程序中的/bin/sh可改为您使用的shell :BFecS&i5
*G|w#-\.c
#!/bin/sh !
Ff/RRo
echo 'Hello, world!' x5/O.5>f
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v{7Jzjd
GUI 6BT o%
;Js-27_0
Delphi fg1_D
program HelloWorld; -ZXC^zt
uses x O`#a=
Dialogs; UR;FW`
begin R<>ptwy
ShowMessage('Hello, World!'); }lZfZ?oAz
end. k`H#u, &