“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。 B&KIM{j\
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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》。 ,=@WE>ip
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以下是用不同语言写成的Hello World程序的几个例子: AGwdM-$iT
Ada ]{|l4e4P
with Ada.Text_Io; use Ada.Text_Io; 07(LLhk@d
procedure Hello is 9.~_swkv
begin -;
d{}F
Put_Line ("Hello, world!"); -`spu)
end Hello; !3c+}j-j
!p36OEx
WT,dTn;W
汇编语言 (?T{^Hg
O]="ggq&
x86 CPU,DOS,TASM ?)Gb=
MODEL SMALL cF9ZnT.
IDEAL .hf%L1N%F
STACK 100H "f3mi[
VyIJ)F.c
DATASEG g[ @Q iy
HW DB 'Hello, world!$' ':\bn:;
S?'L%%Vo
CODESEG IK4(r /
MOV AX, @data K`|V1L.m
MOV DS, AX -0CL#RzKR
MOV DX, OFFSET HW XTb.cqOC
MOV AH, 09H JNvgUb'U
INT 21H i3(5
'
MOV AX, 4C00H b?M. 0{"H
INT 21H `09[25?
END tB}W
)Eb
9CIQRc
.v=n-k7
x86 CPU,GNU/Linux,NASM :de4Fje/4y
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). :Xx7':5
;Enter this into "hello.asm" then type: 0!axAvBV
;"nasm -f elf hello.asm" op&j4R
;"ld hello.o -o hello" _39VL
;"./hello" ~(rZ)
0@&;JMh6<
section .data ;data section declaration O15~\8#'
msg db 'Hello World!',0AH b!EqYT
len equ $-msg ;string length !D
'A
.b2%n;_>.
section .text ;code section declaration PIsXX#`7;
global _start ;entry point (start of execution) s2+_`Ogg
_start: mov edx,len ;string length 6iH]N*]S^
mov ecx,msg ;string start --`W1!jI@
mov ebx,1 ;file handle: stdout ej(w{vl
mov eax,4 ;sys_write $z@nT.x5
int 80h ;kernel system call f[OJqk
<V8=*n"mR
mov ebx,0 ;return value MLDAr dvK
mov eax,1 ;sys_exit q^[SN
int 80h ;kernel system call b%j4W)Z
Qeq=4Nq
6k1_dRu
x86 CPU,Windows,MASM32 .MxMBrM
.386 Ojp|/yd^YL
.model flat,stdcall 7'{Y7]+z+
option casemap:none fAT
M?
;Include 文件定义 mO0#xY_z
include windows.inc WD7T&i
include user32.inc sR$/z9w
includelib user32.lib vb\R~%@T,
include kernel32.inc aQ1n1OBr
includelib kernel32.lib evyA#~o
;数据段 Xpmi(~n
.data pD6a+B\;k
szCaption db 'A MessageBox!',0 x Sv@K5"8!
szText db 'Hello,world!',0 ':T"nORC
;代码段 Hg[AulNna
.code E{B40E~4
start: *&F~<HC2+
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK )x&>Cf<,
invoke ExitProcess,NULL 8{-bG8L> 5
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> /.1h_[K]
end start xC$CRzAe5p
VZU@G)rd
?uE@C3 e
AWK I9jzR~T
BEGIN { print "Hello, world!" } L?hWH0^3
] 2lhJ
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BASIC #_fL[j&
传统版BASIC(例如GWBASIC): !r_2b! dy
|?uUw$oh
10 PRINT "Hello, world!" OQsF$%*
20 END yLCJSN$7
(wEaw|Zx
或在提示符输入: f(*^zga,
->U9u lTC
?"Hello, world!":END ^WIGd"^
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现代版BASIC(例如Quick BASIC): ~@ hiLW
5!d'RBO
Print "Hello, world!" C%kIxa)
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以下的语句在Quick BASIC中同样有效: {o.i\"x;
;PX>] r5U0
? "Hello,world!" | D,->k
sJ)Pj?"\?
!5[5l!{x
BCPL I> 3]VRi
GET "LIBHDR" U_C1GT-|
.t|B6n!
LET START () BE [NIaWI,>
$( c7(Lk"G8
WRITES ("Hello, world!*N") =G%L:m*
$) 5Qgh\4
x1R<oB|
$n@B:kv5p
Befunge a/H|/CB3
"!dlrow olleH">v JQ]A"xTIa*
, &>%9JXU
^_@ H{j
jA+0
6'1m3<G_
/%w3(e
Brainfuck |jE0H!j
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< *k
^?L
+++++++++++++++.>.+++.------.--------.>+.>. $fl+l5?9
h1.<\GO
?_bzg'
C L4-v'Z;
#include <stdio.h> El#"vIg(\
&i?>mt
int main(void) r5S5;jL%t
{ Dk`(Wgk2
printf("Hello, world!\n"); 9&}i[x4
return 0; }IGoPCV|
} b;%>?U`>p
v)J(@>CZ[
TQg~I/
C++ TdWatvY5p
#include <iostream> D>efr8Qd@
k]9v${Ke
int main() !omf>CW;ud
{ #:LI,t
std::cout << "Hello, world!" << std::endl; Yb;$z'
return 0; c}r"O8M
} -oR P ZtW
7F @#6
sw$$I~21
C++/CLI cHjnuL0fsy
int main() >s|zrS)
{ 8*Ke;X~N
System::Console::WriteLine("Hello, world!"); WYXh1_nyk
} /U5!]7&gB
SM8Wg>
!b 4v}70,
C# (C Sharp) c$#7Kp4
class HelloWorldApp c1aIZ
{ "';K$&,[
public static void Main() vA&MJD{
{ qe<aJn
System.Console.WriteLine("Hello, world!"); j;SK{Oq
} ykat0iqo
} %v)O!HC}
PEDV9u[A
o4F(X0
COBOL >&%#`PKT
IDENTIFICATION DIVISION. [Lal_}m?
PROGRAM-ID. HELLO-WORLD. hYB3tT
;nbV-<e
ENVIRONMENT DIVISION. _`.Wib+
~6Pv5DKq
DATA DIVISION. ^ZPynduR
A} v;uNS]
PROCEDURE DIVISION. c.4WwzK
DISPLAY "Hello, world!". :`>bh
STOP RUN. ( we)0AxF'
V
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DA_}pS"
Common Lisp </]a`h]
(format t "Hello world!~%") p!>DA?vF
[PX%p;"D
e82xBLxR%
DOS批处理 )0?u_Z]w9
@echo off _?v&\j
echo "Hello, world!" &t:~e" 5<
AjD?_DPc
^?5HagA
Eiffel ,{2= nb[
class HELLO_WORLD vR4omB{
sZPyEIXie
creation S\L^ZH?[2
make .H
9r_
feature Te2C<c
make is )|wC 1J!L
local D6,Ol4d
io:BASIC_IO Qv6-,6<
do pv8vW'G\E
!!io 3/V0w|ZgD
io.put_string("%N Hello, world!") @Y !Jm
end -- make rT(b t~Z
end -- class HELLO_WORLD hip't@.uE
BU.O[?@64
P,@/ap7J
Erlang MO@XbPZB
-module(hello). moRo>bvN~
-export([hello_world/0]). GBY{O2!3u
9AJ"C7
hello_world() -> io:fwrite("Hello, World!\n"). *$Y_ %}
<w3_EO
M>d^.n
Forth "0LSy x
." Hello, world!" CR 08+\fT [
dkg|
kw'
@%jY
Fortran \aN7[>R.Q
WRITE(*,10) *k@D4F ruP
10 FORMAT('Hello, World!') MM6PaD{
STOP i0F6eqe=J
END .uSVZqJ7
XT?wCb41R
sQ.t3a3m
HTML @r=,:
'Mt
<HTML> &"(zK"O
<HEAD> pS2u&Y"u|
<TITLE> Hello World! </TITLE> E24j(>
</HEAD> 2!R+5^Iy
<BODY> $18?Q+?3
<p>Hello World!</p> nNf*Q
r%Z
</BODY> Nw{Cu+AwG
</HTML> 3YG%YhevO
wg<t*6&'x
a"l\_D'.K8
HQ9+ \-SC-c
H 7AlL,&+
Hb/8X
!=
5O;D\M{>
INTERCAL TKQ^D
PLEASE DO ,1 <- #13 OF2W UcQ
DO ,1 SUB #1 <- #238 Lp(i&A
DO ,1 SUB #2 <- #112 .>Qa3,v5
DO ,1 SUB #3 <- #112 Z/T(4
DO ,1 SUB #4 <- #0 k136n#KN1
DO ,1 SUB #5 <- #64 )2Bb,p<Wr
DO ,1 SUB #6 <- #238 N>CNgUyP
DO ,1 SUB #7 <- #26 SLRF\mh!L
DO ,1 SUB #8 <- #248 X]o"4#CQIX
DO ,1 SUB #9 <- #168 (\'$$
DO ,1 SUB #10 <- #24 D8{,}@
DO ,1 SUB #11 <- #16 q\-P/aN_
DO ,1 SUB #12 <- #158 J=&}$
DO ,1 SUB #13 <- #52 34Cnbtq^
PLEASE READ OUT ,1 ?C- ju8]|
PLEASE GIVE UP 0Y:)$h2?
{T-^xwc
Fy0sn|
Java qzEv!?)a
public class Hello 9kB R /{
{ 9s*QHCB0
public static void main(String[] args) 2j#Dwa(lZQ
{ _zJ /z
System.out.println("Hello, world!"); F`GXho[
} MiR$N
} wWSo+40
kBxEp/y
/='Q-`?9
JSP -2(?O`tZ
<% BMqr YW
out.print("Hello, world!"); *nc3A[B#C
%> =z]rZSq*o
#kh:GAp]
ens]?,`0
MIXAL !
,{zDMA
TERM EQU 19 the MIX console device number I9Uj3cL\
ORIG 1000 start address *l;S"}b*,_
START OUT MSG(TERM) output data at address MSG s 0_*^cZ
HLT halt execution ~y?Nn8+&f
MSG ALF "MIXAL" Zw _aeJ
ALF " HELL" g"k4Z
ALF "O WOR" K&zW+C b
ALF "LD " %-$BtR2@o
END START end of the program _RbM'_y+E
IC (:RtJ
CBF<53TshR
Nuva *8uS,s6g
<..直接输出..> .6LRg
Hello, world! tC(Ma I
sp
MYn&p
<..或者..> ij!],
tW94\3)1
<. ck%YEMs
// 不带换行 y:^o._
? "Hello, world!" r>7+&s*yk
u|T]Ne
// 或者 wu><a!3`=o
93:oXyFjD
// 带换行 )QRT/, ;c
?? 'Hello, world!' *W2)!C|
.> M nZljB
fQ~TZ:UrU
09trFj$L
OCaml F_9
4k
let main () = 3;VH'hh_
print_endline "Hello world!";; MG~Z)+g=y
'RhS%l
x,]x>Up
Pascal 9<&M~(dwT4
program Hello; 9(OeH7
begin 4hLk+ z<n
writeln('Hello, world!'); t72u%M6
end. c61OT@dZEA
ZSW@,Ti
pgiZA?r*<
Perl Ez"*',(
#!/usr/local/bin/perl gzn:]Y^
print "Hello, world!\n"; ygH )U.
\#LDX,=
'*65j
PHP 'I+S5![<
<?php [DDe}D3C
print("Hello, world!"); 8a`3eM~?[
?> {:*G/*1[.
CHZ/@gc
~tyqvHC
Pike `4snTM!v&
#!/usr/local/bin/pike az:}RE3o
int main() K-)!d$$
{ ZJU
%&@
write("Hello, world!\n"); FeMgn`q
return 0; DbLo{mFEIj
} - _8-i1?
|;xEKnF
cW_wIy\]&
PL/I Yl>Y.SO
Test: procedure options(main); ymqv@Byi8A
declare My_String char(20) varying initialize('Hello, world!'); }4!}vkVx
put skip list(My_String); K>e-IxA);0
end Test; Md@x2Ja
^67}&O^1 ,
pZopdEFDK|
Prolog BJb,
goal 4'dN7E1*f
write("hello,world!"). A+8)VlE\
~cSXBc,+
j0~am,yZ
Python %L-qAI&V
#!/usr/local/bin/python PN?;\k)"
print "Hello, world!" Qs
za,09
fX 1%I
ym%` l!
REXX 6q8}8;STTY
say "Hello, world!" J^yqu{
&U?4e'N)T
No6-i{HZ
Ruby "5<!
#!/usr/bin/ruby \By_mw
print "Hello, world!\n" YR0AI l:L
He'VqUw_
95~bM;TVr
Scheme qhvT,"
(display "Hello, world!") ]tT=jN&(
(newline) $%\6"P/64
BXU0f%"8U
()Kaxcs?+
sed (需要至少一行输入) VFZ?<m
sed -ne '1s/.*/Hello, world!/p' /huh}&NNu
dWkQ NFKF
]58~b%s
Smalltalk z"yW):X
Transcript show: 'Hello, world!' /"st
sF
\3^V-/SJf
+em!TO
SNOBOL 9#P~cW?
OUTPUT = "Hello, world!" S-o)d
END ejyx[CF
-hW>1s<
UakVmVN/P
SQL /iM1
create table MESSAGE (TEXT char(15)); %i3[x.M
insert into MESSAGE (TEXT) values ('Hello, world!'); !Whx^B:
select TEXT from MESSAGE; mxF+Fp~
drop table MESSAGE; r2+ZxMo|
ysK J=
Ewr2popK
Tcl v5\ALWy+p
#!/usr/local/bin/tcl 1aS:bFi`
puts "Hello, world!" e#k rr
@fmp2!?6
eq%cRd]u
TScript u;H^4}
OQ
? "Hello, world!" a@jM%VZ
B,_K mHItd
9-{ +U,3)
Turing $$.q6
put "Hello, world!" ?'a>?al%>
F%$ q]J[
tlD^"eq4:
UNIX-style shell NY<qoV
程序中的/bin/sh可改为您使用的shell "#gKI/[qxq
h>*3i#
#!/bin/sh ob/<;SrU<
echo 'Hello, world!' $rk=#;6]v;
ZDzG8E0Sq
m%})H"5
GUI %pOxt<
Nb3O>&J
Delphi cy!P!t,@
program HelloWorld; z.RM85 ?T
uses l$j~p=S$F
Dialogs; (D?4*9=
begin r*mSnPz\q
ShowMessage('Hello, World!'); CfS;F
end. "{E%Y*
}jC^&%|
f
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Nuva P(I%9
<. _ ~yd
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 1>\V>g9
.> u@:[ dbJ
>)NS U
jPz1W4pk
Visual Basic q'y<UyT6
MsgBox "Hello, world!" Y=Ic<WHR
'或者 \}n_Sk
Print "Hello, world!" ?8s$RYp14
J,:;\Xhl
y"7*u
3>"
Visual FoxPro YW~ 9 N
? "Hello, world!" 7D>_<)%d=
pN9U1!|uam
]G8"\J4 &
X11 *PFQ
用一个程序 XefmC6X
l+&DBw[
xmessage 'Hello, world!' Yc6.v8a
icIWv
用C++和gtkmm 2 M6A0D+08
/%jX=S.5h<
#include <iostream> {0+WVZ4u
#include <gtkmm/main.h> y<nPZ<