“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。 <+3-(&
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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》。 NRIp@PIF:"
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以下是用不同语言写成的Hello World程序的几个例子: ,]FcWx
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Ada U?/C>g%/PI
with Ada.Text_Io; use Ada.Text_Io; )b\89F
procedure Hello is jc0Trs{Jf
begin cI#! Y
Put_Line ("Hello, world!"); I)s~kA.e
end Hello; KdN+$fe*g
v2K6y|6,
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汇编语言 MeCHn2zwB
3+~m 9:9
x86 CPU,DOS,TASM pXPLTGY<R+
MODEL SMALL SobOUly5{
IDEAL ;;f&aujSHD
STACK 100H + 0DPhc
/u&{=nU
DATASEG tMbracm
HW DB 'Hello, world!$' K."%PdC
iup "P
CODESEG `PH]_]:%
MOV AX, @data sW#OA\i&
MOV DS, AX ( :h#H[F
MOV DX, OFFSET HW mto=_|gn
MOV AH, 09H {VK
INT 21H {>r56\!F
MOV AX, 4C00H glL.CkJ
INT 21H Lkf}+aY
END d,y%:F 4
~[[(_C3
A,fP l R
x86 CPU,GNU/Linux,NASM J>w3>8!>7
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). `2I<V7SF$
;Enter this into "hello.asm" then type: k\/idd[
;"nasm -f elf hello.asm" 9jkaEn>m^
;"ld hello.o -o hello" =sFLzAu8
;"./hello" 1ZZ}ojq
f5tkv<) %
section .data ;data section declaration F4X0DRC,G
msg db 'Hello World!',0AH _DD.#YB</
len equ $-msg ;string length 7iijATc
EEI!pi
section .text ;code section declaration SSrYFu"
global _start ;entry point (start of execution) 8n2MZ9p]
_start: mov edx,len ;string length 0pW?v:!H
mov ecx,msg ;string start HzdyfZ!jR
mov ebx,1 ;file handle: stdout qvH RP@
mov eax,4 ;sys_write G_cWp D/
int 80h ;kernel system call jT:z#B%
+ 7~u_J
mov ebx,0 ;return value /$-Tg)o5i
mov eax,1 ;sys_exit 31*0b|Z
int 80h ;kernel system call .$]%gjIBCl
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d(t$riFX}
x86 CPU,Windows,MASM32 Rzj1D:?X@
.386 f#>ubmuI^
.model flat,stdcall 31-:xUIX
option casemap:none w+_pq6\V
;Include 文件定义 r5w y]z^
include windows.inc vQ_D%f4;
include user32.inc Y(U+s\X
includelib user32.lib QA"mWw-Ds
include kernel32.inc azKiXr#_(
includelib kernel32.lib j-}WA"
;数据段 oU[>.Igi
.data F?y4 L9|e
szCaption db 'A MessageBox!',0 S`t@L}
szText db 'Hello,world!',0 z4B-fS]
;代码段 vj#Y /B
.code 0Z,a3)jcc
start: 7Z7e}|
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invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK o?]N2e&(
invoke ExitProcess,NULL l =`?Im
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> t gpg
end start %HWebZ-yY
4Rv.m*^ B
uW{;@ 7N
AWK mSFh*FG
BEGIN { print "Hello, world!" } @o/126(k
L0QF(:F5
_X/`7!f
BASIC 7FBaN7l
传统版BASIC(例如GWBASIC): rAwuWM@BIg
:GBM`f@
10 PRINT "Hello, world!" hT
DFIYV
20 END fBw"<J{
Tj3xK%K_r3
或在提示符输入: <RaUs2Q3.
6a MG!_jC
?"Hello, world!":END {1VMwANj
'jr[
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现代版BASIC(例如Quick BASIC): -RK R.,
W!=X_
Print "Hello, world!" xZc].l6
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以下的语句在Quick BASIC中同样有效: E|~)"=
EG;y@\]
? "Hello,world!" knb 9s`wR
UD6:X&Un
Jb1L[sT2
BCPL h,!`2_&UQ
GET "LIBHDR" Hsl0|jy(/
Rv=rO|&]
LET START () BE 7,BULs\g
$( L!l`2[F|
WRITES ("Hello, world!*N") kWW$*d$
$) XhEJF !
vlSSw+r9
]ur_G`B
Befunge QHmF,P
"!dlrow olleH">v }\Ri:&?
, HCIS4}lQ
^_@ aFf(m-
K@R *
V
G.l
~!;
Brainfuck xk\n F0z
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< H7Y :l0b
+++++++++++++++.>.+++.------.--------.>+.>. 0~( f<:
lD41+x7
WH^^.^(i
C p?idl`?^3
#include <stdio.h> ih\=mB
ra]lC7<H
int main(void) 15dbM/Gj
{ WMk;-,S!)
printf("Hello, world!\n"); `"RT(` m
return 0; LEn+0^hX
} ?j^:jV
[==x4Nb
K?$|Y-_D^M
C++ j.O+e|kxU
#include <iostream> 0E^6"nt7N
chs] ,7R
int main() UVz}"TRq.
{ =+
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std::cout << "Hello, world!" << std::endl; A(v5VvgZE
return 0; !L?diR
} C(!A% >
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Uw5AHq).
C++/CLI K}a3Bj,
int main() (@nEe?
{ 5SQqE@g%
System::Console::WriteLine("Hello, world!"); <%ba
3<sg
} Z#znA4;)
T6^H%;G
mK_2VZj&
C# (C Sharp) :ND e<6?u
class HelloWorldApp \\iX9-aI<
{ @0[#XA_>
public static void Main() 8H@] v@Z2
{ ;t\oM7J|
System.Console.WriteLine("Hello, world!"); Je &O
} ~`Rb"Zn
} Bp9_\4
u [Dz~
>HL$=J_K?
COBOL @CNe)&U
IDENTIFICATION DIVISION. 9kby-A4
PROGRAM-ID. HELLO-WORLD. {\p&?
3!qp+i)?
ENVIRONMENT DIVISION. `&w{-om\
rF\L}& Sw
DATA DIVISION. 4Gor*{
~9ynlVb7)r
PROCEDURE DIVISION. :c}"a(|
DISPLAY "Hello, world!". e754g(|>b
STOP RUN. O]VHX![Y$
.u3Z*+
UB2Ft=
Common Lisp
H_vGa!_
(format t "Hello world!~%") 6z2W N|78
/L^pU-}Z0
L&LAh&%{2
DOS批处理 dBb
&sA-A
@echo off F9Co m}
echo "Hello, world!" r$WBEt,B
cP2n,>:
Cc}3@Nf{/
Eiffel M'5PPBSR
class HELLO_WORLD 6.6;oa4j
CAbR+y
creation vp&N)t_
make tFvXVfml
feature 6^NL>|?
make is U%V4@iz~\m
local FT[of(g^
io:BASIC_IO opfg %*
do kps}i~Jb
!!io ^`+Kjhht
io.put_string("%N Hello, world!") ?X^.2+]*&
end -- make i#KY'"P
end -- class HELLO_WORLD ]Il}ymkIZ
8/"R&yAh
k, >*.Yoh
Erlang (MzThGJK_
-module(hello). 7!PU}[:
-export([hello_world/0]). y"Ios:v@-
5a%i%+;N
hello_world() -> io:fwrite("Hello, World!\n"). {&uN q^Ch
ap wA
F#KUu3;B
Forth WGA"e
." Hello, world!" CR p>h}k_s
#&,~5
I''X\/|
Fortran V i<6i0
WRITE(*,10) K_GqM9
10 FORMAT('Hello, World!') FM,o&0HSd
STOP
Fp~0 ^
END Ti>2N
-GODM128 ^
]FEsN6
HTML 99*QfC
<HTML> >=K~*$&>
<HEAD> -GZ:}<W6+
<TITLE> Hello World! </TITLE> zn#lFPj12
</HEAD> -'rb+<v
<BODY> Wxzh'c#\8
<p>Hello World!</p> v-&@c
</BODY> D!rD-e
</HTML> "Tnmn@
3U4h>T@s|
'k9Qd:a}
HQ9+ Z)!#+m83>-
H Fd/Ra]@\Y
Rja>N)MzBf
<,</ Ge
INTERCAL 0)Q*u
PLEASE DO ,1 <- #13 qk=OodEMK
DO ,1 SUB #1 <- #238 ;nw}x4Y[
DO ,1 SUB #2 <- #112 /E^j}H{
DO ,1 SUB #3 <- #112 f{+X0Oj
DO ,1 SUB #4 <- #0 ZsN3 MbY
DO ,1 SUB #5 <- #64 M5c
*vs
DO ,1 SUB #6 <- #238
U92?e}=]
DO ,1 SUB #7 <- #26 .(Tf$V
DO ,1 SUB #8 <- #248 $D;-;5[-/r
DO ,1 SUB #9 <- #168 Gdv{SCV
DO ,1 SUB #10 <- #24 QRHM#v S
DO ,1 SUB #11 <- #16 !laOiH
DO ,1 SUB #12 <- #158 T)mh
DO ,1 SUB #13 <- #52 * TByAa{
PLEASE READ OUT ,1 kb[+II
PLEASE GIVE UP s)}EMDY
5"z~BE7
TGzs|-
Java >K*TgG6!X
public class Hello rnQ9uNAu
{ o?><(A|
public static void main(String[] args) )F m'i&F_
{ } QpyU%
System.out.println("Hello, world!"); 3Gt@Fo=
} Fiaeo0
} rq|>z .
9
=D13s(C
9d8U@=
JSP %B(E;t63W
<% K}8wCS F
out.print("Hello, world!"); J<-2dvq
%> Z&5cJk
W
-)[~%n#X+t
G\#dMCk?
MIXAL k(dNHT
TERM EQU 19 the MIX console device number $j&2bO5M
ORIG 1000 start address O4T_p=Xc
START OUT MSG(TERM) output data at address MSG N:UA+
HLT halt execution ^3ysY24 Q
MSG ALF "MIXAL" w"AO~LF
ALF " HELL" v<E_n;@9k
ALF "O WOR" HiEQs|""'
ALF "LD " ni-4~k
END START end of the program ew1bb K>
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=|qYaXjT$
Nuva uZ+vYF^
<..直接输出..> BV
eIj }
Hello, world! m`#UV-$J
"tz`@3,5dN
<..或者..> w%eEj.MI|i
k!{h]D0
<. ~"22X`;h[G
// 不带换行 Eg0qY\'
? "Hello, world!" e89IT*
6&L8{P
// 或者 7vEZb.~4z
#.|MV}6rQ
// 带换行 7-c3^5gn{
?? 'Hello, world!' A2"$B\j1
.> 2fG[q3`
K!;>/3Y2-
0b+End#mp
OCaml J>^KQ
let main () = 4n/CSAT1
print_endline "Hello world!";; 8[d6 s
q@}tv=}
,e+S7YX
Pascal ^A$p)`KR
program Hello; ..yLtqos
begin 5 0<
writeln('Hello, world!'); !KLY*bt6
end. U_AmRiy
zN>tSdNkI-
H)NT2@%{P
Perl T@j@IEGH
#!/usr/local/bin/perl hA387?
print "Hello, world!\n"; 9`5qVM1O{
qWw{c&{Q],
O],]\M{GL
PHP v Yw$m#@
<?php #&&
print("Hello, world!");
;"+]bne~
?> @mu=7_$U
W(jP??up
~%u;lr
Pike *"sDsXo- I
#!/usr/local/bin/pike ="s>lI-1a
int main() YHI@Cj
{ kcZz WG|n
write("Hello, world!\n"); 5
DvD
return 0; }+BbwBm&
} i`EG80\[Z
qh/}/Sl;
H6i;MQ
PL/I ZvkBF9d
Test: procedure options(main); )U:W
9%
declare My_String char(20) varying initialize('Hello, world!'); <9aa@c57
put skip list(My_String); CYN")J8V
end Test; _rfGn,@BH
3<ry/{#%
w[s}#Q
Prolog lvIdYf$?
goal +{@hD+
write("hello,world!"). o|c%uw
S01Bc
'v_VyK*w
Python rPF2IS(5
#!/usr/local/bin/python XV:icY
print "Hello, world!" U-lN-/=l6
gshgl3
b[ .pD3
REXX 8B|B[,`
say "Hello, world!" Ap9 %5:]
mE3M$2}
ec"+Il
Ruby QHbjZJ
N
#!/usr/bin/ruby AOR(1Qyo
print "Hello, world!\n" E~eSHJ(oR7
p^9u8T4l1
o 9{~F`{p
Scheme -%>.Z1uj
(display "Hello, world!") ql%]t~HR0
(newline) 'A#F< x
_U`1BmTC2
UeN+}`!l
sed (需要至少一行输入) <#No t1R
sed -ne '1s/.*/Hello, world!/p' KPB^>,T2{
,|Lf6k
7Un5Y[FZo
Smalltalk _J-3{a
Transcript show: 'Hello, world!' "CF{Mu|Q=
,-_\Y hY>
/\|Behif
SNOBOL &l2C-(
OUTPUT = "Hello, world!" (}&O)3)
END Nk&$b
aW7)}"j4
O`Ge|4
SQL Q*l_QnfG
create table MESSAGE (TEXT char(15)); +!)v=NY
insert into MESSAGE (TEXT) values ('Hello, world!'); GN@(!V#/4
select TEXT from MESSAGE; K*fh`Kz
drop table MESSAGE; U8icP+Y
o~={M7m
$C~OV@I
Tcl ^{w]r5d
#!/usr/local/bin/tcl ;_?RPWZ;MO
puts "Hello, world!" o+
0"@B
H?W8_XiN
hF7#i_UN<
TScript 4/ M~#
? "Hello, world!" 2N[S*#~*e
<R@w0b>
v{*#
Turing @G:aW\Z
put "Hello, world!" N!W2O>VS
6A*k
vILq5iR
UNIX-style shell T{Y;-m
程序中的/bin/sh可改为您使用的shell @>SirYh
o@blvW<v7
#!/bin/sh KL6FmL)HH
echo 'Hello, world!' 9|9Hk1
{8Uk]
YQ#o3sjs
GUI c&n.JV
'}.Z' %;
Delphi !pG_MO
program HelloWorld; lgaE2`0 [3
uses y{]iwO;
Dialogs; V [KFZSA
begin j1U,X
ShowMessage('Hello, World!'); O6Jn$'os1#
end. pv9Z-WCix$
{t1;icu
t/L:Y=7w
Nuva wJKP=$6n_
<. 'o.A8su,
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) GI$7uR}
.> tp3]?@0
f=/IwMpn
)Me$BK>
Visual Basic TSHQ>kP
MsgBox "Hello, world!" 1Xj>kE:
'或者
*aT\V64
Print "Hello, world!" )mF;^3
vS_Ji<W~E
v"N%w1`.e
Visual FoxPro qL?`l;+
? "Hello, world!" \OX;ZVb?5
fNTe_akp
eJ
O+MurO
X11 ^CWxYDG*
用一个程序 XlGDv*d:#d
haW*W=kv)
xmessage 'Hello, world!' (np60mX<
9j~|m
用C++和gtkmm 2 eQQ*ZNG
}4A $j{\
#include <iostream> pwG" _|h
#include <gtkmm/main.h> d2XSw>
#include <gtkmm/button.h> ,U^V]jC
#include <gtkmm/window.h> 2J5RZg9jL
using namespace std; B8sc;Z.
B %Vz -t
class HelloWorld : public Gtk::Window Tz{f5c&
{ {, `)
public: [c_o.`S_\
HelloWorld(); oe*Y(T\G
virtual ~HelloWorld(); 27q=~R}
protected: "Gh5
^$w?j
Gtk::Button m_button; aS,M=uqqK
virtual void on_button_clicked(); >GV= %
}; yE4X6
krI@N}OU
HelloWorld::HelloWorld() : m_button("Hello, world!") o@!Uds0
{ EmO{lCENk
set_border_width(10); @0{vA\
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); W+&<C#1|]
add(m_button); F T/STI
m_button.show(); 6)_svtg
} ltH?Ew<]
?ot7_ vl
HelloWorld::~HelloWorld() {} -SGoE=
EiP#xjn?c
void HelloWorld::on_button_clicked() 1FfSqd
{ :497]c3#5C
cout << "Hello, world!" << endl; pX~X{JTaL)
} M~jV"OF=
ndCHWhi
int main (int argc, char *argv[]) *[SOz)
{ PUJkC
Gtk::Main kit(argc, argv); 48 n5Y~YS
HelloWorld helloworld; gcKXda(
Gtk::Main::run(helloworld); y.PsC '
} rE[:j2HF
i,z^#b7JQ
$63_*9
Java aUTXg60l*
import java.awt.*; ta'{S=^j
import java.awt.event.*; zs<2Ozv
d=v{3*a_4,
public class HelloFrame extends Frame =Mby;wQ?|
{ ;Or]x?-
HelloFrame(String title) [zv@}@$
{ (m3
<)
super(title); PZjK6]N\
} `1fNB1c
public void paint(Graphics g) ZS\~GQbG
{ V^[B=|56
super.paint(g); <