“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。 R7/"ye:7J
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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》。 CM ; r\,o
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以下是用不同语言写成的Hello World程序的几个例子: ]Zfg~K(
Ada REyk,s2"6
with Ada.Text_Io; use Ada.Text_Io; Cf-R?gn]
procedure Hello is &^R0kCF`
begin qOyg&]7
Put_Line ("Hello, world!"); H_RVGAbU
end Hello; QEl:>HG
IF<?TYy=3B
D[.;-4"_
汇编语言 >x(3p@6p
+V"t't7
x86 CPU,DOS,TASM 8vhg{L..
MODEL SMALL &dqC
=oK]
IDEAL 82w='~y
STACK 100H 99'e)[\
3y}0J @
DATASEG #d+bld \
HW DB 'Hello, world!$' "=7y6bM
wSTy2Oyo;
CODESEG R %QgOz3`
MOV AX, @data P4{8pO]B
MOV DS, AX l]BIFZ~
MOV DX, OFFSET HW "Qf X&'09
MOV AH, 09H `"N56
INT 21H jU1 ([(?"
MOV AX, 4C00H ?8cgQf$
INT 21H {uO=Wkp~7
END ;a]2hd"6
] m$;ra]
S>W_p~@
x86 CPU,GNU/Linux,NASM Z.a`S~U
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ar-N4+!@
;Enter this into "hello.asm" then type: &E0d{2
;"nasm -f elf hello.asm" %P!6cyQS
;"ld hello.o -o hello" Tw:j}ERq
;"./hello" b?6-lYE>L
_7j-y 9V
section .data ;data section declaration `lAe2l^
msg db 'Hello World!',0AH |sf&t
len equ $-msg ;string length c/fU0cA@
2s(c#$JVS
section .text ;code section declaration by 'P}
global _start ;entry point (start of execution) 9oOr-9t3
_start: mov edx,len ;string length _*d8:|qw
mov ecx,msg ;string start ))y`q@
mov ebx,1 ;file handle: stdout -;/;d z;
mov eax,4 ;sys_write |9YY8oT.
int 80h ;kernel system call p 8,wr )
4Wz@^7|V5
mov ebx,0 ;return value p^QEk~qw
mov eax,1 ;sys_exit .>4Zt'gCt
int 80h ;kernel system call `)sC".b7
7(RtPLpZ
"bI'XaSv
x86 CPU,Windows,MASM32 *VJT]^_
.386 jH+ddBVA
.model flat,stdcall ?P<8Zw
option casemap:none 8UH
c,np
;Include 文件定义 QU4/hS;Ux
include windows.inc cg16|
include user32.inc
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includelib user32.lib ,(h:0L2v7d
include kernel32.inc 8ZY F%
includelib kernel32.lib KI* erK
[d
;数据段 q J)[2:.G
.data ELh`|X
szCaption db 'A MessageBox!',0 PL;PId<9w
szText db 'Hello,world!',0 [1pWg^
;代码段 :bJT2o[
.code ;?-A4!V,
start: S8+GM
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK Q8]lz}
invoke ExitProcess,NULL $)UMRG
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> /oA=6N#j
end start O=2"t%Gc
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xq#YBi,
AWK du,mbTQib
BEGIN { print "Hello, world!" } [sx J<
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BASIC {bQi
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传统版BASIC(例如GWBASIC): xa7~{ E,
2vb {PQ
10 PRINT "Hello, world!" PtfxF]%H
20 END [^oTC;
xqP DL9\
或在提示符输入: r&$r=f<
J.nJ@?O+
?"Hello, world!":END *{_WM}G
o75Hit
现代版BASIC(例如Quick BASIC): 0?x9.]
:Z(w,
Print "Hello, world!" nT(Lh/
`7.(dn>WL0
以下的语句在Quick BASIC中同样有效: eouxNw}F1
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? "Hello,world!" ^oykimYI-
yeI((2L@E2
Qn=#KS8=J
BCPL jv8diQ.
GET "LIBHDR" <xb =.xe
!CJh6X!
LET START () BE %E1_)^^
$( \FE
WRITES ("Hello, world!*N") }f/xMp-Y
$) FLWQY,
h-0#h/u>M
w6b\l1Z
Befunge xN^ngRg0
"!dlrow olleH">v ?^y!}(
, Qyh_o
^_@ u 2)#Ml
uA`EJ )d
rMV<}C ^
Brainfuck 3Ryae/Nk
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< #2dd`F8
+++++++++++++++.>.+++.------.--------.>+.>. |.asg
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8`I/\8;H'p
C zO@7V>2
#include <stdio.h> .ty^ k@J|]
pn5A6
#
int main(void) Mg7nv\6
{ F.N4Q'2Z
printf("Hello, world!\n"); N;\G=q]
9
return 0; 8y9`xRy
} Cob<N'.
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tTX@Bb8
C++ [,@gSb|D?
#include <iostream> IJ#G/<ZJZ
_^Ds[VAgA
int main() )&jE<C0
{ { \r1A
std::cout << "Hello, world!" << std::endl; 0=WZ 8|R
return 0; =1:dKo8
} I;=HXL
8 !{;yz
4>JDo,AWy
C++/CLI D&)w =qIu
int main() 1\hh,s
{ P&6hk6#
System::Console::WriteLine("Hello, world!"); Q&JnF`*
} E0SP
@c>a
I: j!A
C# (C Sharp) lZ\Si
class HelloWorldApp G!%Cc0d"7
{ 1cA4-,YO>
public static void Main() vk^ /[eha
{ xJ0Q8A
System.Console.WriteLine("Hello, world!"); ;z>?-
j
} |=\w b^l+
} oo+nqc`,O
{}Q A#:V
4ONou&T
COBOL #iZ%CY\
IDENTIFICATION DIVISION. A_:YpQ07@
PROGRAM-ID. HELLO-WORLD. <"&I'9
o<pb!]1
ENVIRONMENT DIVISION. ;aI`4;
/d1
B-I
DATA DIVISION. kS\A_"bc
KRL9dD,&
PROCEDURE DIVISION.
>k\lE(
DISPLAY "Hello, world!". Y[\ZN
STOP RUN. {I]X-+D|_
Gtyy^tz[
KX|7mr90K
Common Lisp qjtrU#n
(format t "Hello world!~%")
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_
G"xa"hGF
EYLqg`2A
DOS批处理 6)@Y 41H]C
@echo off 4a]$4LQV
echo "Hello, world!" ~EV7E F
0/vmj,&B(
Lwy9QZL
Eiffel P
~sX S
class HELLO_WORLD $@wTc
nc0!ag
creation xDJs0P4
make _Di";fe?
feature mvCH$}w8&
make is 2a\?Q|1C
local ++Z,U
io:BASIC_IO &~6W!w
do [q<Vm-
!!io Z2%ySO
io.put_string("%N Hello, world!") |z5`h
end -- make O.9r'n4f
end -- class HELLO_WORLD %GY U$aA
U|NVDuo{{x
X}Oo5SNgff
Erlang I Ceb2R
-module(hello). R
_c!
,y
-export([hello_world/0]). NDmTxW#g
t/3t69 \x
hello_world() -> io:fwrite("Hello, World!\n"). 5y1:oiE/
tbNIl cAWS
3~r>G
Forth {cYS0%Go
." Hello, world!" CR zx(=ArCRr
9/@7NNKJ
-=+@/@nV
Fortran {p70(
]v
WRITE(*,10) G!^}z(Mgi
10 FORMAT('Hello, World!') ` !JcQ'u
STOP ]W7e2:Hra
END
/uyZ[=5
V1 H3}
5d4/}o}%"
HTML &* Aems{-
<HTML> :'F7^N3;H
<HEAD> Q#Vg5H4
<TITLE> Hello World! </TITLE> V"r2 t9A
</HEAD> ZbZCW:8>k
<BODY> zS6oz=
<p>Hello World!</p> ^O9_dP:
</BODY> Kb/w+J
S
</HTML> Pr!H>dH8o
j~'a %P
qkg`4'rLg
HQ9+ m7F"kD
H bH7 lUS~
Y
>83G`*}b
I|SQhbi
INTERCAL lV*dQwa?i
PLEASE DO ,1 <- #13 'H]&$AZ;@
DO ,1 SUB #1 <- #238 j\uh]8N3<
DO ,1 SUB #2 <- #112 q\`0'Z,
DO ,1 SUB #3 <- #112 >7[o=!^:4
DO ,1 SUB #4 <- #0 {Y(# <UDM
DO ,1 SUB #5 <- #64 Q8~|0X\.g
DO ,1 SUB #6 <- #238 %:DH_0
DO ,1 SUB #7 <- #26 S%sD#0l
DO ,1 SUB #8 <- #248 *Bse3%-v
DO ,1 SUB #9 <- #168 }1sFddGVt
DO ,1 SUB #10 <- #24 '&OJ hLE
DO ,1 SUB #11 <- #16 rZK;=\Ot
DO ,1 SUB #12 <- #158 4|]0%H~n6
DO ,1 SUB #13 <- #52 [|&V$
PLEASE READ OUT ,1 )5O E~}>
PLEASE GIVE UP J$/'nL<{^
SdJGhU
9 :ubPqt
Java !
/^Jma7n
public class Hello EV$$wrohQ`
{ jnu!a.H
public static void main(String[] args) j-R9=vB2
{ =u.jZ*u]WT
System.out.println("Hello, world!"); \a.^5g
} K4{1}bU{>
}
^tFbg+.
C;EC4n+s
I_k!'zR[N
JSP NhgzU+)+
<% l0&Y",vy
out.print("Hello, world!"); ?uBZ"^'
%> `/4R$E{
DA(ur'D
dYn<L/#
MIXAL *wd@YMOP
TERM EQU 19 the MIX console device number xaSg'8-
ORIG 1000 start address ]((Ix,ggP
START OUT MSG(TERM) output data at address MSG _Z>I"m
HLT halt execution {j!jm5
MSG ALF "MIXAL" "~|;XoMU
ALF " HELL" 1>pFUf|cV
ALF "O WOR" 43HZ)3!me
ALF "LD " 8F;f&&L"y
END START end of the program yG ,oSp|
#j?SdQ
x&N!SU6
Nuva B'kV.3t
<..直接输出..> s;9>YV2at
Hello, world! ,+Bp>=pvs
w9W0j
<..或者..> [l7 G9T}/[
0?0$6F
<. .GM}3(1fX`
// 不带换行 f0h^ULd
? "Hello, world!" RaBq@r*(
t
V:oBT*
// 或者 $}TK,/W
t'.oty=
// 带换行 WYayr1
?? 'Hello, world!' dTwZ-%
.> 2`ED?F68gH
{f12&t
DJGq=*
OCaml v
Wt{kg;
let main () = @}r2xY1
print_endline "Hello world!";; Wi5rXZS
pT;{05
#zL0P>P'a
Pascal N;6@f*3_i
program Hello; |
WN9&
begin *}n)KK7aT
writeln('Hello, world!'); @S>$y5if
end. n1mqe*Mvs/
?;c&5'7ct
<8SRt-Cr
Perl KXtc4wra
#!/usr/local/bin/perl `PH*tdYrh
print "Hello, world!\n"; iax6o+OG|
F\H^=P
r'GD
PHP { yvKUTq`
<?php 3SU:Xd(\o
print("Hello, world!"); yOQEF\
?> B\ITXmd
@[vwqPOL
VZRM=;V
Pike O6Gg?j
#!/usr/local/bin/pike !K~L&.\T
int main() j_I
{ 4NN81~v 4
write("Hello, world!\n"); \kQ@G
return 0; 4YmN3i
} R DAihq
{TWgR2?{C
zq?Iwyo
PL/I ;Bs^+R7
Test: procedure options(main); NETji:d
declare My_String char(20) varying initialize('Hello, world!'); (K}Md~
put skip list(My_String); uINm>$G,5
end Test; } XJZw|n
\i +=tGY
MUs~ZF
Prolog jcuC2t
goal ~:|qdv%\
write("hello,world!"). :q+D`s
jl:dKL@
_]Ei,Ua
Python :6
\?{xD
#!/usr/local/bin/python ,fQs+*j
print "Hello, world!" a33SY6.
%mv9+WJN.
u{/!BCKE
REXX qUMM}ls
say "Hello, world!" Ijs"KAW
?
u3Jsu=Nx-
+T R#
Ruby yQ3*~d~U|L
#!/usr/bin/ruby pR
VL}^Rk
print "Hello, world!\n" >UQ`@GdafR
Q.d Hg7+D
n*
7mP
Scheme 6kc/
(display "Hello, world!") 5nhc|E)C
(newline) k/|j e~$
3cp"UU}.
wU|Y`wJmF
sed (需要至少一行输入) "* Qwaq_
sed -ne '1s/.*/Hello, world!/p' }: W6Bo-|
Fs bX{
x!<?/I)X
Smalltalk nKoc%TNqe
Transcript show: 'Hello, world!' e+ZC<Bdh
-bq\2Yc$]
g@ ZZcBx
SNOBOL X[XSf=
OUTPUT = "Hello, world!" 6}vPwI
END 4/rdr80
n<x NE%
abvA*|
SQL ),K!|7#h
create table MESSAGE (TEXT char(15)); r|bvpZV
insert into MESSAGE (TEXT) values ('Hello, world!'); dB^')-wA
select TEXT from MESSAGE; <AzM~]"3
drop table MESSAGE; 9bpY>ze
7;_./c_@
<( 0TK5
Tcl u/D=&"tL
#!/usr/local/bin/tcl d9hJEu!Lu
puts "Hello, world!" 4~G++|NQ
X5@rPGc
CpAdE m{
TScript KL4Z||n
? "Hello, world!" *d,u)l :S
9tnW:Nw~
D;VFMP
Turing "~f=7
put "Hello, world!" w:}RS.AK
8#Q=CTjF
iCouGd}
UNIX-style shell =;1MpD
程序中的/bin/sh可改为您使用的shell ^[d|^fRH Q
>D';i\2j&
#!/bin/sh jocu=Se@
echo 'Hello, world!' 4Qr16,Us
GlDl0P,*r
l6X\.oI
GUI !5~{?sr>
6m$,t-f0b
Delphi nl 7=Nhh
program HelloWorld; !V=s^8nj
uses 07T"alXf:A
Dialogs; (wNL,<%~
begin N[~"X**x
ShowMessage('Hello, World!'); D/CSR=b
end. )ow|n^D($M
T/%s7!E
6 ]@H .8+
Nuva .[-d( #l{l
<. C^po*(W6
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) ?PIOuN=
.> K"cN`Kj<*-
8"a[W3b
r )cGee
Visual Basic e1dT~l
MsgBox "Hello, world!" 5o~;0K]
'或者 Ksq{=q-T
Print "Hello, world!" dpO ZqhRs.
io]e]m%
1)aB']K%
Visual FoxPro :bLLN
? "Hello, world!" FuNc#n>
CL*i,9:NR
c}II"P
X11 C?bq7kD:H
用一个程序 p;dH[NW
/5@V $c8
xmessage 'Hello, world!' :QnN7&j|(w
?~e 8:/@
用C++和gtkmm 2 _|x b)_
9=D\xBd|w
#include <iostream> pJ6Z/3]
#include <gtkmm/main.h> ZGHkW9b&
#include <gtkmm/button.h>
-<gGNj.x-
#include <gtkmm/window.h> |0?h6
using namespace std; R=IZFwr
;Cdrjx
class HelloWorld : public Gtk::Window slV+2b
{ n"dC]&G'
public: 5FJ<y"<6
HelloWorld(); x4cP%{n
virtual ~HelloWorld(); d v@B-l;
protected: p/B&R@%
Gtk::Button m_button; 5!r?U
virtual void on_button_clicked(); !M&L<0b:7e
}; TOo0rcl
1!"0fZh9U
HelloWorld::HelloWorld() : m_button("Hello, world!") )+c4n]
{ )W!8,e+%
set_border_width(10); 8[SiIuIV
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); [kx_Izi/T
add(m_button); 2T &<jt
m_button.show(); `}ak;^Me
} #`5{?2gS9
lzz rzx^
HelloWorld::~HelloWorld() {} `1F[.DdF
>&mlwxqv
void HelloWorld::on_button_clicked() cB
U,!
{ iN0gvjZ
cout << "Hello, world!" << endl; ] Cpd`}'
} =j]us?5
k:nR'TI
int main (int argc, char *argv[]) &A