“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。 : NA(nA
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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》。 wN58uV '
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以下是用不同语言写成的Hello World程序的几个例子: >}\s-/
Ada kmX9)TMVO
with Ada.Text_Io; use Ada.Text_Io; 'tY(&&
procedure Hello is ?_d6;
begin qB (Pqv
Put_Line ("Hello, world!"); _dRB=bl"O
end Hello; bm 4RRI
Jx~H4y=z
ch:rAx
汇编语言 ?&;_>0P
ah hl
x86 CPU,DOS,TASM "~0`4lo:Xo
MODEL SMALL -fk;Qq3O
IDEAL rR :ZTfJs"
STACK 100H tT>LOI_z
%4),P(4N
DATASEG }x\#ul)
HW DB 'Hello, world!$' eA86~M?<o
D\b$$z]q
CODESEG Er%&y
MOV AX, @data )ds]fvMW]N
MOV DS, AX :ujpLIjvVG
MOV DX, OFFSET HW :CW^$Zvq
MOV AH, 09H ""jW'%wR
INT 21H ^!\AT!OT
MOV AX, 4C00H (;;ji!i
INT 21H ;b*qunJ3L
END fs 2MYat
l=p_
5{k,/Z[L
x86 CPU,GNU/Linux,NASM \c4jGJ
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). Lv]%P.=[G
;Enter this into "hello.asm" then type: ^;<d<V}*
;"nasm -f elf hello.asm" N-?5[T"
;"ld hello.o -o hello" +T@BOYhgq
;"./hello" Hp04apM:
s$isDG#Sr
section .data ;data section declaration Y&j`HO8f
msg db 'Hello World!',0AH m9A%Z bQ^
len equ $-msg ;string length D\&S {
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section .text ;code section declaration Mq)]2>"v
global _start ;entry point (start of execution) (87| :{
_start: mov edx,len ;string length RW+u5Y
mov ecx,msg ;string start I51]+gEN
mov ebx,1 ;file handle: stdout $uDgBZA\
mov eax,4 ;sys_write Qgj# k
int 80h ;kernel system call OU/}cu
Lm~<BBp.
mov ebx,0 ;return value ;7qIm83
mov eax,1 ;sys_exit 38p"lT
int 80h ;kernel system call G9^`cTvv'8
Z! O4hA4
~q}L13^k
x86 CPU,Windows,MASM32 (g@\QdH`|
.386 !i~(h&z
.model flat,stdcall *lvADW5e
option casemap:none x
C&IR*
;Include 文件定义 zplv.cf#q
include windows.inc RB+Jp
include user32.inc wDh]vH[
includelib user32.lib TPJF?.le
'
include kernel32.inc nK :YbLdK,
includelib kernel32.lib HvG %##
;数据段 [oVM9Q
.data
Pd~=:4
szCaption db 'A MessageBox!',0 zp;!HP;/=
szText db 'Hello,world!',0 1*u]v{JJ(
;代码段 7Dbm
s(:(
.code ]|tg`*l!>
start: O*l,&5
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK }x`Cnn
invoke ExitProcess,NULL @@H_3!B%4v
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> B4RrUA32
end start Bk~C$'x4
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AWK MSQ^ovph
BEGIN { print "Hello, world!" } ]nUr E6
g~y0,0'j1\
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BASIC F]yB=
传统版BASIC(例如GWBASIC): !92e$GJ} ;
6/S.sj~
10 PRINT "Hello, world!" oYkd%N9P
20 END U_"!\lI_yg
Fn@`Bi?#q
或在提示符输入: NSz}
XYzaSp=bb
?"Hello, world!":END lf7bx}P*
F)hj\aHm k
现代版BASIC(例如Quick BASIC): \t7yH]:>@
!6'N-b1
Print "Hello, world!" Dhn7N8(LF!
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以下的语句在Quick BASIC中同样有效: b!@PS$BTxq
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? "Hello,world!" a{T.U-0
&|Duc} t
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BCPL TM(y%!\
GET "LIBHDR" -_ I)5*N
Dm)B? H"
LET START () BE C12UZE;
$( ae sk.
WRITES ("Hello, world!*N") a
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$) G^W0!u,@
89LD:+p/
fQa*> **j;
Befunge B[@q.n
"!dlrow olleH">v 9O3 #d
, m>vwpRBOA
^_@ .Z[4:TS
}(t`s
+<1 |apS1
Brainfuck qS+;u`s
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< >4X2uNbZS
+++++++++++++++.>.+++.------.--------.>+.>. |ky40[C
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$CE dJ+0z
C cb9-~*1
#include <stdio.h> ?.VKVTX^
4[$:KGh3
int main(void) _U^[h !
{ ~9+01UU^
printf("Hello, world!\n"); d^}p#7mB\
return 0; H]/~
#a
} " !EnQB=
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C++ ur}'Y^0iR
#include <iostream>
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?@G s7'
int main() ,>-D xS
{ blgA`)GI
std::cout << "Hello, world!" << std::endl; 27D*FItc
return 0; g3$'Ghf
} !{jw!bB
x
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C++/CLI 4{uQ}ea
int main() =-si|
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{ Nbpn"*L,
System::Console::WriteLine("Hello, world!"); dBXiLrEbs
} G JRl{Y
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C# (C Sharp) 2PlhnU Q7
class HelloWorldApp u8zL[]>
{ ;l*%IMB
public static void Main() $ZI]
{ o`S``?`^)^
System.Console.WriteLine("Hello, world!"); PeIx41. +s
} f]/2uUsg%
} f7_(C0d
"bhK%N;
Nnh\FaI
COBOL n|{K_! f
IDENTIFICATION DIVISION. -MTk9<qnT
PROGRAM-ID. HELLO-WORLD. OvX&5Q5
MR1I"gqE}I
ENVIRONMENT DIVISION. nc;eNB
12Oa_6<\0;
DATA DIVISION. K
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PROCEDURE DIVISION. "A}sD7xy9
DISPLAY "Hello, world!". 6'^E
],:b
STOP RUN. ;TJpD0
n*7^lAa2
+c~&o83[
Common Lisp ]:gW+6w"C
(format t "Hello world!~%") Ok_}d&A
w#b@6d
zQyI4RHG[
DOS批处理 hBX*02p
@echo off M3jUnp&
echo "Hello, world!" _^BA;S@
^K<3_D>1>
"/zgh
Eiffel b{<?E };%
class HELLO_WORLD YCDH 0M
SI!A?34
creation !.6n=r8d
make #sw4)*v
feature v.(dOIrX
make is sE[`x^1'8
local n2K1X!E$
io:BASIC_IO d=vuy
do G<7M;vRvP
!!io 2f[;U"
io.put_string("%N Hello, world!") WLl8oE<X
end -- make M@xU59$@
end -- class HELLO_WORLD C+TB>~Gv`
Y%?S:&GH
`q36`Wn
Erlang 'f<N7%eZ
-module(hello). s\;/U|P_
-export([hello_world/0]). Tgz=I4g
$2a"Ec!7
hello_world() -> io:fwrite("Hello, World!\n"). e\V
-L_
2Xe1qzvo
BH0m[9nU;
Forth 76tn`4NIP
." Hello, world!" CR eUy*0
%R>n5m
1Vu#:6%
Fortran e`n ZiM>
WRITE(*,10) >/A]C$?3
10 FORMAT('Hello, World!') hoq2zDjD
STOP C-y MWr
END ~q3O,bb{
OyO]; Yk
Rn?JMM]
HTML FaeKDbLJr
<HTML> iN&oSpQ
<HEAD> vaB ql(?'2
<TITLE> Hello World! </TITLE> 4
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</HEAD> F@?-^ E@
<BODY> inaO{ny y
<p>Hello World!</p> Rf!v{\
</BODY> yh
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</HTML> |,$&jSe
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HQ9+ a^%)6E.[,
H p3A9<g
LFax$CZc
VO0:4{-
INTERCAL Y!L-5|G
PLEASE DO ,1 <- #13
t1hQ0 B
DO ,1 SUB #1 <- #238 E:K4k <
DO ,1 SUB #2 <- #112 $9X+dvu*
DO ,1 SUB #3 <- #112 6.)ug7aF
DO ,1 SUB #4 <- #0 1D'r;`z
DO ,1 SUB #5 <- #64 8{ZTHY-
DO ,1 SUB #6 <- #238 @/s|<*
DO ,1 SUB #7 <- #26 5?^#v
DO ,1 SUB #8 <- #248 r]!#v{#.
DO ,1 SUB #9 <- #168 k;^$Pd?t
DO ,1 SUB #10 <- #24 z6R|1L 1
DO ,1 SUB #11 <- #16 p-iFe\+
DO ,1 SUB #12 <- #158 h^ Cm\V
DO ,1 SUB #13 <- #52 ~LS</_N
PLEASE READ OUT ,1 r
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{
PLEASE GIVE UP JN/=x2n.
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zcP=+Y)YA
Java WAxNQfEe
public class Hello X<,QSTP
{ }[akj8U
public static void main(String[] args) #KiJ{w'
{ W_}j~[&
System.out.println("Hello, world!"); I(*3n"
} I,hw0e
} K%dQ;C*?
],weqs
^t})T*hM0
JSP Oo
:Dt~Ib
<% d3c.lD)L9
out.print("Hello, world!"); Tow=B
%> Rt?CE jy
Pg8.RvmQ
`$/a-K}
MIXAL 2jyWkAP'
TERM EQU 19 the MIX console device number f0H.$UAL
ORIG 1000 start address d}Pfj=W
START OUT MSG(TERM) output data at address MSG ><}nZ7
HLT halt execution 7Vy_Cec1
MSG ALF "MIXAL" u1 Q;M`+>
ALF " HELL" +ALrHFG
ALF "O WOR" nz3*s#k\-
ALF "LD " ~s+vJvWz
END START end of the program )7 & -DI1
e;`(*
zu1"`K3b
Nuva (?Mn_FNE|
<..直接输出..> 1L*[!QT4
Hello, world!
b WNa6x
Sh(ys*y>
<..或者..> }>6e-]MHfR
rC!O}(4t%$
<. VFf;|PHS
// 不带换行 Q2 !GWz$
? "Hello, world!" f5*qlQJFz\
ZR\N~.
// 或者 S
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+#eol~j9N
// 带换行 sMMOZ'bT
?? 'Hello, world!' Aars\
.> {rcN_N%
s;I
@En
"<=4]Z
OCaml 59zWB,y(P
let main () = a=}1`Q
print_endline "Hello world!";; uLzE'ZmV
JPZp*5c6A
n$C-^3c
Pascal nriSVGi
program Hello; OdFF)-K>~
begin i(|ug_^
writeln('Hello, world!'); nod&^%O"
end. rNk'W, FU
#r #[&b
]jD\4\M}
Perl 1Rd|P<y
#!/usr/local/bin/perl -rU_bnm
print "Hello, world!\n"; \OVFZ D
Z5'^81m$o
NWn*_@7;
PHP 1Of(O!
<?php B<I(t"s
print("Hello, world!"); hZ 1enej)
?> RyK~"CWT
|p/*OFC6
/p<9C?
Pike
`o#(YEu
#!/usr/local/bin/pike l+6c|([
int main() 8e-nzc,]
{ A8.noV
write("Hello, world!\n"); 6m$X7;x}
return 0; {`D]%eRO
} ~Y`ys[Z m
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yo[Sh6r/9b
PL/I Q$ew.h
Test: procedure options(main); N~flao^
declare My_String char(20) varying initialize('Hello, world!'); Nqj@p<y/q
put skip list(My_String); 4 *}H3-`
end Test; vCi`htm%
zH~P-MqC
MJiVFfYW
Prolog ntH`\ )xi
goal _S{TjGZ&
write("hello,world!"). 0 8)f
\H .Cmm^I
1 |{s8[;8
Python ML>M:Ik+
#!/usr/local/bin/python #;!@Pf
print "Hello, world!" 32K& IfV
FXo.f<U
z@VL?A(3
REXX BX$<5S@
say "Hello, world!" "9P @bA
^5s7mls
`n>|rd
Ruby \'Ca1[y@B
#!/usr/bin/ruby sAc1t`
print "Hello, world!\n" lPR^~&/
KS8@A/f
i@+m<YS:2>
Scheme )tBz=hy#
(display "Hello, world!") _p8u
&TZ
(newline) +A8q.-N
G
.T7CMkYt
zd%f5L('
sed (需要至少一行输入) iYB c4'X
sed -ne '1s/.*/Hello, world!/p' c/+6M
QD0x^v8
KWo Ps%G
Smalltalk R{c~jjd
Transcript show: 'Hello, world!' 5,,'hAq_
!@lx|=#
a!bW^?PcK
SNOBOL U Y*`R
OUTPUT = "Hello, world!" bXJ(QXHd%
END *jhgCm
'nPI
zK<v
=-Hhm($n
SQL .I~:j`K6
create table MESSAGE (TEXT char(15)); WA2NjxYz
insert into MESSAGE (TEXT) values ('Hello, world!'); [q%`q`EG
select TEXT from MESSAGE; 60|PVsmDm
drop table MESSAGE; .<?7c!ho
;@S'8
|9XoRGgXU
Tcl v_Vw!u
#!/usr/local/bin/tcl e'uC:O.u
puts "Hello, world!" )w4U]inJ$"
HlX~a:.7
3:xx:Jt
TScript <O=0 ^V
? "Hello, world!" gd
* b0(
lZRO"[<
3U^Vz9LW
Turing j~Pwt9G
put "Hello, world!" [<,7LG<
v76P?[
gw"SKp!]
UNIX-style shell w-JWMgY8w
程序中的/bin/sh可改为您使用的shell [5'HlHK
Ba?1q%eG
#!/bin/sh ! $mY.uu
echo 'Hello, world!' +w[ZMk
gpyio1V>
\xp0n
GUI WYF8?1dt +
ftMlm_u
Delphi GXm#\)
program HelloWorld; f|(9+~K/7&
uses s:lH4B
Dialogs; ,sSo\%
begin mfg>69,w
ShowMessage('Hello, World!'); ].d%R a:{
end. G9-ETj}
o]tfvGvU*
hN K wQ
Nuva EGI$=Y
<. _R(ZvsOZ
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) .lj5pmD
.> :vIJ>6lIR
<w}^Z}fpk&
.n+
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Visual Basic w=?nD6Xhz
MsgBox "Hello, world!" k waZn~
'或者 3|w$gG;Y
Print "Hello, world!" '*XIp:
=Pn"nkpML
/-!Fr:Ox>
Visual FoxPro 4jDi3MMU9
? "Hello, world!" ~Y
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(PH7nW7
8F<|.V;
X11 _)<5c!
用一个程序 /"="y'Wx
SVwxK/Fci
xmessage 'Hello, world!' _,0.h*c
JE{cZ<NNH
用C++和gtkmm 2 Oto8?4[n
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#include <iostream> KsTGae;ds
#include <gtkmm/main.h> !21G$[H
#include <gtkmm/button.h> c}$>UhLe
#include <gtkmm/window.h> ,F->*=
using namespace std; /L2ZI1v
N:Q.6_%^
class HelloWorld : public Gtk::Window e8):'Cb
{ bA0H
public: v
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HelloWorld(); .<%q9Jy#
virtual ~HelloWorld(); &S