“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。 :M3oUE{
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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》。 {7hLsK[])
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以下是用不同语言写成的Hello World程序的几个例子: OR1DYHHT/1
Ada y&~w2{a
with Ada.Text_Io; use Ada.Text_Io;
uF|3/x=
procedure Hello is * |.0Myjo
begin `4?~nbz
Put_Line ("Hello, world!"); HSUI${<
end Hello; 0oZsb\
g#]" hn
3f.b\4 U
汇编语言 t_z>Cl^u
%M
F;`; 1
x86 CPU,DOS,TASM K7knK
MODEL SMALL fEf_F
r
IDEAL $``1PJoi
STACK 100H JCx
WWre
+j_;(Gw7
DATASEG |y;}zQB-dH
HW DB 'Hello, world!$' )>
,wj
d_UN0YT<
CODESEG Ks^6.)
MOV AX, @data Y_&g="`Q
MOV DS, AX !l?.5Pm])
MOV DX, OFFSET HW F_iXd/
MOV AH, 09H -&x2&WE'
INT 21H LsEXM-
MOV AX, 4C00H Xaz o9J
INT 21H \J. .*,'
END 9_s6l
:o-,SrORM
E:sz$\Ht)
x86 CPU,GNU/Linux,NASM :K`ESq!8u
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). RoA?p;]<
;Enter this into "hello.asm" then type: W:,4 :|3
;"nasm -f elf hello.asm" <~ad:[
;"ld hello.o -o hello" 6fH@wQ"wN
;"./hello" q\Q{sv_
(/!r(#K0,'
section .data ;data section declaration #4MBoN(3
msg db 'Hello World!',0AH <9E0iz+j
len equ $-msg ;string length :P,sxDlG)
O<PO^pi
section .text ;code section declaration 6vuq1
global _start ;entry point (start of execution) [Aj Q#;#Q
_start: mov edx,len ;string length LZJA4?C
mov ecx,msg ;string start Ee)[\Qjn
mov ebx,1 ;file handle: stdout =L%DX#8
mov eax,4 ;sys_write kIw`P[
int 80h ;kernel system call )[H{yQ
OaJB=J%
mov ebx,0 ;return value ;AR{@Fu.
mov eax,1 ;sys_exit ~\ ,w {
int 80h ;kernel system call fbyQjvURnC
F|Mi{5G%
ZUz ^!d
x86 CPU,Windows,MASM32 2XTPBZNe
.386 bmN q[}
.model flat,stdcall tO7v4
option casemap:none LTNj| u
;Include 文件定义 !TZhQiorC
include windows.inc s+Fi @lg,
include user32.inc iHwLZ[O{
includelib user32.lib /MY9
>
include kernel32.inc z,qRcO&
includelib kernel32.lib ~<<nz9}o_
;数据段 /,!qFt
.data Zfk*HV#\
szCaption db 'A MessageBox!',0 R1nJUOE4w^
szText db 'Hello,world!',0 s]m o$ _na
;代码段 R>DaOH2K*
.code `U+l?S^$
start: [A}rbD K
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK Q-ni|
invoke ExitProcess,NULL 4h5g'!9-g
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> b'VV'+|
end start {o5V7*P;_
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O^/Maa/D1
AWK FMkOo2{
BEGIN { print "Hello, world!" } A7(hw~+@
u` oq(?|
+!QJTn"3
BASIC u@ jX+\
传统版BASIC(例如GWBASIC): rl9.]~
g{W;I_P^9
10 PRINT "Hello, world!" x~.:64
20 END R@Gq)P9?
&]
\X]p
或在提示符输入: ~/mwx8~
T+N|R
?"Hello, world!":END h;=6VgXZ
: ^ 8
现代版BASIC(例如Quick BASIC): 2H.654
8ElKD{.BU8
Print "Hello, world!" 8G5Da|\
zBO(`=|
以下的语句在Quick BASIC中同样有效: f|y:vpd%
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? "Hello,world!" i)#s.6.D>
LL|7rS|o
,J`'Y+7W
BCPL nW;g28
GET "LIBHDR" Lh.`C7]
S1D@vnZ3O\
LET START () BE ^Rx9w!pAN
$( Vi4~`;|&b+
WRITES ("Hello, world!*N") SP|<Tny
$) hFiIW77s2
Ed9Z9
}I@L}f5N
Befunge )DYI
.
"!dlrow olleH">v "t^URp3
, hJzxbr
<
^_@ J9K3s_SN
^(*n]
`R"I;qV
Brainfuck #Rg|BfV-
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 0* /{4)r
+++++++++++++++.>.+++.------.--------.>+.>. BTM),
w2
vD 5vbl
)sho*;_o
C DJP2IP
#include <stdio.h> -hkQ2[Ew#
[`]4P&
int main(void) $9S(_xdI&
{ %cE2s`
printf("Hello, world!\n"); ^<LY4^
return 0; R\XKMF3mN3
} ='TE,et@d
6sa"O89
XQ4G)
C++ *>VVt8*Et
#include <iostream> _ Ro!"YVX
l2;CQ7
int main() >5Wlc$bc
{ SZJ$w-<z
std::cout << "Hello, world!" << std::endl; z<.?x%4O
return 0; )[1)$-Ru
} f]7M'sy |
LN_xq&.
7Sz?S_N/j
C++/CLI ~tOAT;g}q
int main() Q[+ac*F=Y
{ 31EyDU,W
System::Console::WriteLine("Hello, world!"); &qS[%K )
} w`l{LHrR
&K/FyY5
S$2b>#@UJ
C# (C Sharp) K(XN-D/c
class HelloWorldApp W+*5"h
{ *m2=/Sh
public static void Main() *Z_C4Tj
{ ,t)x{I;C)
System.Console.WriteLine("Hello, world!"); U35AX9/
} \;rYo.+
} m^x6>9,
au,t%8AC
&i!vd/*WlD
COBOL .rPn5D Y
IDENTIFICATION DIVISION. %r4q8-
PROGRAM-ID. HELLO-WORLD. $ "Bh]-
pHoEa7:
ENVIRONMENT DIVISION. (|wz7AY2
R0oKbs{
DATA DIVISION. WW~+?g5
G|\^{5
PROCEDURE DIVISION. =V"(AuCVE
DISPLAY "Hello, world!". t'm;:J1
STOP RUN. Gn;@{x6
1".v6caW
jq08=
Common Lisp oA1a /[#
(format t "Hello world!~%") w1;hy"zPsj
"(qw-kil
fAB e
DOS批处理 ." $
@echo off Py{<bd
echo "Hello, world!" (MHAJ]Rx
d6i6hcQE
f{0F|w<gf
Eiffel GU Q{r!S
class HELLO_WORLD 42L
@w
"[:iXRu
creation k<+0o))
make S.!UPkW H
feature :$+-3_oLMQ
make is @|'5n
local wW>)(&!F
io:BASIC_IO w\}?( uO
do >[6{LAe~hp
!!io ?bw4~
io.put_string("%N Hello, world!") KR"M/#
end -- make ~ H6r.:]
end -- class HELLO_WORLD _4 cvX
<_(/X,kBK
c)0amM
Erlang $wYFEz
-module(hello). 4`Ic&c/
-export([hello_world/0]). sKyPosnP
;Eec5w1
hello_world() -> io:fwrite("Hello, World!\n"). @*
il3h,
Pl-5ncb\
)J?{+3
Forth 0kDK~iT
." Hello, world!" CR HHjt/gc}`
Lr`1TH,
s}onsC
Fortran `<[6YH_
WRITE(*,10) z6py"J@
10 FORMAT('Hello, World!') cQ:"-!ff
STOP gT/@dVV
END RmrL^asg
yz2Ci0Dwy
:iR \%
HTML !gnj]k&/c
<HTML> X0*QV- RN
<HEAD> nL:SG{7
<TITLE> Hello World! </TITLE> LK"
bC
</HEAD> fIGFHZy,
<BODY> e|4&b@
<p>Hello World!</p> >M Jg ,
</BODY> LW:o8ES33
</HTML> [31p&FxM
#yI.nzA*
PR|R`.QSs
HQ9+ ,#W
H s( <uo{
D#S\!>m
OGiV{9U
INTERCAL 8P:
Rg%0)
PLEASE DO ,1 <- #13 %P;Q|v6/|
DO ,1 SUB #1 <- #238
Quf_'
DO ,1 SUB #2 <- #112 )bx_;9Y{
DO ,1 SUB #3 <- #112 `"@ X.}\
DO ,1 SUB #4 <- #0 m`6Yc:@E
DO ,1 SUB #5 <- #64 W(RF n`g\
DO ,1 SUB #6 <- #238 oUQ07z\C
DO ,1 SUB #7 <- #26 @Mvd'.r<;
DO ,1 SUB #8 <- #248 i
ZL2p>
DO ,1 SUB #9 <- #168 A[WV'!A,
DO ,1 SUB #10 <- #24 |#l=
DO ,1 SUB #11 <- #16 Z>)][pL
DO ,1 SUB #12 <- #158 1y^K/.5-
DO ,1 SUB #13 <- #52 #y|V|nd
PLEASE READ OUT ,1 d3^OEwe
PLEASE GIVE UP rw)kAe31
0ult7s}
'&;yT[
Java aQ j*KMc
public class Hello rwIeqV{:
{ fA48(0p
public static void main(String[] args) fri0XxF
{ mW%?>Z1=>d
System.out.println("Hello, world!"); 22(*J<
} BK,sc'b
} l<(Y_PE:
":3 VJ(eY
N)% ;jh:T
JSP drwgjLC+
<% 3\;27&~gV
out.print("Hello, world!"); $>U#
W:
%> 9dh>l!2
(J"T]-[
I|$
RJkD
MIXAL }B7K@Wu#
TERM EQU 19 the MIX console device number |_u8mV
ORIG 1000 start address \8OO)98'
START OUT MSG(TERM) output data at address MSG -)!>M>=s
HLT halt execution Ch
)dLPz@
MSG ALF "MIXAL" pS 4&w8s
ALF " HELL" +MK6zf
ALF "O WOR" c^8o~K>w84
ALF "LD " +*oS((0s
END START end of the program {5*|C-WWtG
%=j3jj[
0i[zup
Nuva \bCX=E-
<..直接输出..> =rPrPb
Hello, world! Kt>X[o3m,
~#\i!I;RY}
<..或者..> 6pE :A@
h x6;YV
<. !S%6Uzsj
// 不带换行 S~$'WA
? "Hello, world!" :PbDU$x
Vv$HR
// 或者 0%s|Zbo!>
nRhrWS
// 带换行 q^rl)
?? 'Hello, world!' *5$&`&,
.> !k$}Kj)I
!\[+99F#
N12:{U
OCaml bt+,0\Vg5
let main () = _nT{g
print_endline "Hello world!";; 3-40'$lE
+w|9x.&W
V's:>;
Pascal XC15 K@K
program Hello; vjViX<#(V
begin RaSz>-3d
writeln('Hello, world!'); 'k&?DZ!
end. .DJDpP)M
f<y&\'3
'UM!*fk7C
Perl bAxTLIf
#!/usr/local/bin/perl BdbJ< Is
print "Hello, world!\n"; @D`zKYwX1
D
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N$?cX(|7
PHP (g :p5Rl
<?php M/V(5IoP(
print("Hello, world!"); $mco0%$
?> z*~YLT&
t0PQ~|H<KV
NnxM3*
Pike dw@E)
#!/usr/local/bin/pike A,~Hlw
int main() ]0c Pml
{ IKvBf'%-
write("Hello, world!\n"); z)F#u:t
return 0; `NwdbKX
} oL/o*^
(U.**9b;
FYPz 4K
PL/I E(+T*
Test: procedure options(main); 4YbC(f
declare My_String char(20) varying initialize('Hello, world!'); e/e0d<(1
put skip list(My_String); dhRJg"vrQ
end Test; 7INk_2
a
ib}`l
^[h2% c$
Prolog OsW"CF2
goal %/0gWG
write("hello,world!"). g jG2
mp`PE=
x;$|#]+
Python <Mgf]v.QS
#!/usr/local/bin/python [j6~}zu@
print "Hello, world!" ||TtNH
G=M] 8+h
!awh*Xj6
REXX YaFcz$GE_
say "Hello, world!" -oBI+v&
AfWl6a?T8:
rb_Z5T
Ruby :q2YBa
#!/usr/bin/ruby 9n}A ^
print "Hello, world!\n" 4E"d /
='/Z;3jt]x
{V2bU}5
[
Scheme oo'w-\2]p
(display "Hello, world!") #-x@"+z
(newline) ":WYcaSi
*d*oS7
;R1B9-,
sed (需要至少一行输入) l[n@/%2
sed -ne '1s/.*/Hello, world!/p' <GW R7rUH
P!+v:'P5f
,zgNE*{Y"4
Smalltalk uIP
iM8(
Transcript show: 'Hello, world!' cIw
eBDl
5}<[[}(
cqQRU
SNOBOL GfsBQY/
OUTPUT = "Hello, world!" ;e;\q;GP
END Tx+ p8J|Yr
?R?Grw)`H
r=csi
SQL CM 9P"-
create table MESSAGE (TEXT char(15)); i>Iee^_(
insert into MESSAGE (TEXT) values ('Hello, world!'); 7Jx%JgF
select TEXT from MESSAGE; ;/Q6i
drop table MESSAGE; \REc8nsLy
?iln<%G
7z<Cu<
Tcl {'IFWD. 5
#!/usr/local/bin/tcl %_tk7x
puts "Hello, world!" XV2=8#R
Xu]h$%W
b[g.}'^yht
TScript rA#s
? "Hello, world!" p37|zX
qz:]-A
A[9NP-~
Turing a;&}zcc*
put "Hello, world!" vXubY@k2
1l]C5P}E
A9n41,h
UNIX-style shell Ygx,t|?7
程序中的/bin/sh可改为您使用的shell @^wpAQfd4
('BLU.7IX
#!/bin/sh 9r8D*PvS
echo 'Hello, world!' t&f" jPu>
6K//1U$
Q [:<S/w
GUI R9=K(pOT
Qtnv#9%Vi
Delphi EW;1`x
program HelloWorld; ;.0LRWcJ
uses `e*61k5
Dialogs; b Fn(w:1Q
begin PSEWL6=]N
ShowMessage('Hello, World!');
?360SQ<
end. #01/(:7
#ko6L3Pi
sy.:T]ZH
Nuva cKpQr7]ur
<. AY@k-4
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 5Jd`
^U
.> ;*`_#Rn#
tj#b_u z
\P?--AIq<
Visual Basic @WJf)
MsgBox "Hello, world!" +{0=<2(EC
'或者 Wbd_aR
(
Print "Hello, world!" s[Gswd
<)J55++
Re\o
v x9
Visual FoxPro }6@%((9E2
? "Hello, world!" W+/2c4$F3
w<mqe0
VwC4QK,d;
X11 fr]Hc+7
用一个程序 UhBz<>i;!
'v+96b/;
xmessage 'Hello, world!' Hi7G/2t@`
d1lH[r!Z
用C++和gtkmm 2 lux9o$ %
rxArTpS{.#
#include <iostream> X_!$Pk7ma
#include <gtkmm/main.h> _;VYFs
#include <gtkmm/button.h> .Map
#include <gtkmm/window.h> hvL6zCi
using namespace std; d~,n_E$q;
yW:AVqE)t
class HelloWorld : public Gtk::Window )Kr(Y.w
{ $WJy?_c
public: LiF.w:}
HelloWorld(); ^W k0*.wg
virtual ~HelloWorld(); R1~7F{FW
protected: BMF3XcH~G
Gtk::Button m_button; rSbQ}O4V
virtual void on_button_clicked(); ]ci RiMkT(
}; Qv74?B@
| 4%v"U
HelloWorld::HelloWorld() : m_button("Hello, world!") Mi;Tn;3er
{ :g/{(#E@Z
set_border_width(10); {YfYIt=.
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); DSTx#*
add(m_button); s7AI:Zv
m_button.show(); %K`4k.gN
} 'oT|cmlc
hPS/CgLq
HelloWorld::~HelloWorld() {} }0krSzcn#,
EtPgzw[#c9
void HelloWorld::on_button_clicked() =$[W,+X6f
{ cUYX1a)8
cout << "Hello, world!" << endl; ?9CIWpGjU
} we
@Y w6<
y.%i
int main (int argc, char *argv[]) cx<h_
{ vDWr|M%``l
Gtk::Main kit(argc, argv); n/Or~@pHD
HelloWorld helloworld; &