“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。 (hEqh
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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》。 3iMh)YH5b
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以下是用不同语言写成的Hello World程序的几个例子: >vF=}1_L
Ada /~Zxx}<;
with Ada.Text_Io; use Ada.Text_Io; (sSMH6iCif
procedure Hello is sS7r)HV&GI
begin Q&S\?cKe
Put_Line ("Hello, world!"); u2,V34b-
end Hello; ()i8 Qepo}
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汇编语言 `uo'w:Q
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x86 CPU,DOS,TASM <1cYz\/!M
MODEL SMALL AX!YB'm-
IDEAL l(
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STACK 100H t=J WD2
q'{LTg0kk
DATASEG |7KW'=O
HW DB 'Hello, world!$' rw/WD(
pVbgjJI
CODESEG d#6'dKV$
MOV AX, @data gIa/sD2m>
MOV DS, AX #
Un>g4>Rh
MOV DX, OFFSET HW sJu^deX
MOV AH, 09H AvnK?*5!@
INT 21H X~wkqI#d%E
MOV AX, 4C00H DA;,)A&=Q
INT 21H .4DX/~F
END 6B>1"h%Wf
BBnW0vAZ*
4Rj;lAlwB
x86 CPU,GNU/Linux,NASM *;b.x"
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). m!{Xu y
;Enter this into "hello.asm" then type: r:Uqtqxh
;"nasm -f elf hello.asm" #'m&<g,
;"ld hello.o -o hello" 0Yk@O)
x
;"./hello" `@?f@p$(B
k=">2!O/
section .data ;data section declaration v|r\kr k
msg db 'Hello World!',0AH y\Su!?4!
len equ $-msg ;string length 1haNca_6,
1UG5Q-
section .text ;code section declaration d67Q@')00
global _start ;entry point (start of execution) }NX9"}/
_start: mov edx,len ;string length )Lt|]|1B{
mov ecx,msg ;string start ?z,^QjQ}
mov ebx,1 ;file handle: stdout #lDf8G|ST~
mov eax,4 ;sys_write m]LR4V6k|
int 80h ;kernel system call rw>X JE
xe ng`!
mov ebx,0 ;return value m2&"}bI{
mov eax,1 ;sys_exit iEd%8 F h
int 80h ;kernel system call }2dz];bR
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`@.
x86 CPU,Windows,MASM32 %J)n#\
.386 FnkB
z5D
.model flat,stdcall Ut"~I)S{LT
option casemap:none z@@w?>*
;Include 文件定义 ch2Q k8
include windows.inc NR3]MGBKv
include user32.inc xRum q
includelib user32.lib QUa_gYp0v
include kernel32.inc Om
#m":
includelib kernel32.lib :0K[fBa
;数据段 ] Tc!=SV
.data YbS$D
szCaption db 'A MessageBox!',0 2de[ yz
szText db 'Hello,world!',0 Vq[L4
;代码段 'C=8. P?
.code <
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start: l+# l\q%l
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK rKZ1
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invoke ExitProcess,NULL ;O8Uc&:P
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> f n]rMH4>
end start ?,Z[)5 ZN
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c,WRgXL
AWK ym*,X@Qg^
BEGIN { print "Hello, world!" } &S\q*H=}i
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5HWVK .
BASIC "6.JpUf
传统版BASIC(例如GWBASIC): R <kh3T
bj6-0`
10 PRINT "Hello, world!" w h4WII
20 END j@OGl&'^-
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或在提示符输入: AGwFD
RRYm.dMIw
?"Hello, world!":END WJH)>4M#
}(}+I}&~
现代版BASIC(例如Quick BASIC): q2qbbQ6H
\U^0E> d
Print "Hello, world!" li>`9qCmI
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以下的语句在Quick BASIC中同样有效: lWYZAF>?Ym
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? "Hello,world!" C[cNwvz
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>s\j/yM
BCPL eBZ^YY<*g
GET "LIBHDR" \Qa6mt2h
L,I5/K6
LET START () BE _J<^'w^;%
$( 6mH0|:CsY
WRITES ("Hello, world!*N") SG6@Rn*^
$) WdXi
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< 8yv(
Befunge u&Ze$z
"!dlrow olleH">v nF0V`O\T
, wKe$(>d"L
^_@ }m6zu'CV
h> K~<BAz'
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Brainfuck ^X$k<n A;
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 2FHWOy
/N@
+++++++++++++++.>.+++.------.--------.>+.>. [qhQj\cK
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> UT Ak
C EYc, "'
#include <stdio.h> sS$"6
H ]BH
int main(void) ]fH U/%
{ g(d9=xq@k
printf("Hello, world!\n"); P19nF[A
return 0; [da,SM
} G\8ps~3T
8nOMyNpy~M
klC;fm2C
C++ oXA3i
#include <iostream> \79KU
,o(7z^1Pe;
int main() m&)5QX
{ R:+2}kS5e{
std::cout << "Hello, world!" << std::endl; _is<.&f6
return 0; nZ?BCO
} qx0RCP /s
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SJY<#_b
C++/CLI -uZ bVd
int main() ?haN ;n6'
{ e%VJ:Dj
System::Console::WriteLine("Hello, world!"); %GUu{n<6
} b&.j>=
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H\ A!oB,sw
C# (C Sharp) a\an
class HelloWorldApp ,: X+NQ
{ ajIgL<x
public static void Main() tqLn A
{ /E'c y
System.Console.WriteLine("Hello, world!"); [u[`!L=
} V$u~}]z
} Uq/#\7/rL
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$Xf1|!W%a%
COBOL 5p6Kq=jhb
IDENTIFICATION DIVISION. (p<QRb:&Z
PROGRAM-ID. HELLO-WORLD. #~um F%#
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ENVIRONMENT DIVISION. j.MpQ^eJ7
#yZZ$XO k
DATA DIVISION. a
p-\R
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PROCEDURE DIVISION. z)Xf6&
DISPLAY "Hello, world!". bX#IE[Yp}
STOP RUN. :A35?9E?
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WjZJQK
Common Lisp Q+|8|V}w
(format t "Hello world!~%") frS1<+
/ G$8 j$
5T,Doxo
DOS批处理 $,ev <4I&
@echo off lyiBRMiP|
echo "Hello, world!" ?(GMe>
[\CQ_qs|
iMRb`
\KH
Eiffel 03?TT,y$
class HELLO_WORLD pq[RH-{
"6/`
creation vlCjh! x
make \KfngYD]W
feature U#G[#sd> K
make is V-a/%_D
local D+{h@^C9Z
io:BASIC_IO lJ@2N$w
do K[Rl R+j
!!io /km^IH
io.put_string("%N Hello, world!") SeAokz>
end -- make 9
O| "Ws>{
end -- class HELLO_WORLD lbrob' '+
r(pp =
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Erlang Db\.D/76
-module(hello). b)@%gS\F
-export([hello_world/0]). 7uJy<O
]d?`3{h9LD
hello_world() -> io:fwrite("Hello, World!\n"). N8(xz-6
Ixm<wKwW#
c38RE,4U
Forth <4}zl'.
." Hello, world!" CR rb%P30qc4
'5wa"/ ?w
Acr\2!))
Fortran d{&+xl^ll
WRITE(*,10) \1D~4Gz6}
10 FORMAT('Hello, World!') {EbR
=
STOP $7gzu4f
END #*q`/O5n
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p3 I{
HTML t/WauY2JUC
<HTML> Fh& `v0
<HEAD> i`7{q~d=
<TITLE> Hello World! </TITLE> 6PT ,m
</HEAD> OQaM4 7"
<BODY> x3T)/'(
<p>Hello World!</p> raY5 nc{
</BODY> 4q[C'
J
</HTML> * #e%3N05_
3;~1rw=$<
7{f&L'
HQ9+ `48jL3|
H _z\oDd`'
is?`tre\P
hXM8`iFW5
INTERCAL eS fT+UL
PLEASE DO ,1 <- #13 s4P8PDhz
DO ,1 SUB #1 <- #238 E4[
|=<
DO ,1 SUB #2 <- #112 HxAq& J;xu
DO ,1 SUB #3 <- #112 UBqA[9
DO ,1 SUB #4 <- #0 xB3;%Lc
DO ,1 SUB #5 <- #64 2H;&E1:
DO ,1 SUB #6 <- #238 Mcc774'*9
DO ,1 SUB #7 <- #26 G U~?S'{
DO ,1 SUB #8 <- #248 Gnp,~F"
DO ,1 SUB #9 <- #168 (G<"nnjK
DO ,1 SUB #10 <- #24 K`* 8*k{
DO ,1 SUB #11 <- #16 x,IU]YW@
DO ,1 SUB #12 <- #158 'x<gC"0A
DO ,1 SUB #13 <- #52 4ao
oBY$
PLEASE READ OUT ,1 ma@ws,H
PLEASE GIVE UP u$[
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yw"FI!M
c.6u)"@$
Java ~!meO;|W
public class Hello *!%y.$\cE
{ /:>qhRFJA:
public static void main(String[] args) Smo^/K`f9
{ kU_bLC?>D
System.out.println("Hello, world!"); WRZi^B8@
} dG.s8r*?M
} (`GO@
HKv:)h{?
(FbqKx'uq
JSP :-.R*W
<% 'Fo*h6=
out.print("Hello, world!"); gSEj/?
%> Hq$AF
1""9+4
|4YDvDEJi
MIXAL %/~6Qq
TERM EQU 19 the MIX console device number ;5=J'8f
ORIG 1000 start address ?(Dkh${@
START OUT MSG(TERM) output data at address MSG Xw`vf7z*
HLT halt execution w4:S>6X
MSG ALF "MIXAL" eJilSFp1
ALF " HELL" .oH0yNFX
ALF "O WOR" c 6}d{B[
ALF "LD " oaHg6PT!
END START end of the program o; {
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zHG
KPuk'
Nuva 5xwztcR-
<..直接输出..> n*CH,fih:
Hello, world! SWUHHl
'I($IM
<..或者..> Hhr/o~?;}#
%CfJ.;BDNE
<. VxLq,$B76
// 不带换行 ul/= 1]1?
? "Hello, world!" LVq3R 8A
jiYYDGs77
// 或者 Z8(1QU,~2
^6#FqK+{u
// 带换行 %O%+TR7Z
?? 'Hello, world!' 2WIL0Siwl
.> [5:,+i
$@FD01h.t3
dD1`[%
OCaml + G"=1sxJ
let main () = Z%D*2wm4
print_endline "Hello world!";; a~Sf~ka
x|_%R
v
}+nC}A"BC
Pascal OwwH 45
program Hello; Oq(_I
b)9
begin }.3F|H
writeln('Hello, world!'); K0@2>nR
end. AEX]_1TG
8U/q3@EC
@4B+<,i
Perl [VT&
#!/usr/local/bin/perl QN9$n%Z
print "Hello, world!\n"; ;tf1#6{
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-TU7GCb=
PHP n <6}
<?php -9~kp'_a
print("Hello, world!"); iJ~5A'?6
?> i5?)E7-
9qIUBH e
Mlb=,l
Pike p/:)Z_
#!/usr/local/bin/pike U
u(ysN4`
int main() DIB Az s
{ $lOx
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write("Hello, world!\n"); |VB}Kv
return 0; n&iWYECz
} fGcAkEstT!
jC*(ZF1B
SIKy8?Fn
PL/I nSz Fs(]f
Test: procedure options(main); >MUwT$szs
declare My_String char(20) varying initialize('Hello, world!'); U`,&Q]
put skip list(My_String); 9xB^dKM3
end Test; U>(5J,G
f62z9)`^
?Mp~^sgp'
Prolog /_rQ>PgSZW
goal ]}<.Y[!S
write("hello,world!"). n4 KiC!*i0
/SY40;k:
LXVm0IOFF
Python :M`|*~V~$
#!/usr/local/bin/python K)]7e?:Wu
print "Hello, world!" R)I 8 )
T$06DS
#~Lh#@h
REXX -3qB,KT
say "Hello, world!" kN`[Q$B
zpZlA_
eE>3=1d]w
Ruby CJJ 1aM
#!/usr/bin/ruby b)en/mz
print "Hello, world!\n" Y`LZ/Tgk
"}\2zub9
}yLdU|'W
Scheme Vvm6T@b M8
(display "Hello, world!") MKJ9PcVi
(newline) ;} gvBI2e
3rZFN^
EX>> -D7L
sed (需要至少一行输入) u%V=Ze
sed -ne '1s/.*/Hello, world!/p' Ar'}#6
#dqZdj@
*<x]gV
Smalltalk .Ap[C? mV
Transcript show: 'Hello, world!' A~ '2ki5$g
Q[i;IbY
FMwT4]y
SNOBOL |^S[Gr w
OUTPUT = "Hello, world!" x-nwo:OA
END ;G0~f9
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H$Q$3Q!`
SQL J6hWcA6g
create table MESSAGE (TEXT char(15)); b/"gkFe#
insert into MESSAGE (TEXT) values ('Hello, world!'); |E53
[:p
select TEXT from MESSAGE; H5, {Z
drop table MESSAGE; c500:OSB
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w4 \]
y@~.b^?_u
Tcl ).9-=P HlX
#!/usr/local/bin/tcl ^M,t`r{
puts "Hello, world!" ~NpnRIt
*7ap[YXZ\w
b= F"
TScript %a5Sc|&-
? "Hello, world!" csRba;Z[
1Lqs>*
O_-.@uo./(
Turing xO/44D
put "Hello, world!" t82Bp[t
%T}{rU~X
^[&*B#(
UNIX-style shell b 7aAP*$
程序中的/bin/sh可改为您使用的shell /%=#*/E7
VY=~cVkzS
#!/bin/sh 7; TS
echo 'Hello, world!' ]K XknEaxl
SK;f#quUQ
)lB-D;3[_
GUI U=Z@Ipu5T
e Yyl=YW
Delphi "N4c>2Q
program HelloWorld; RvDqo d
uses #xYkG5`lm
Dialogs; FE M_7M
begin BAX])~_
ShowMessage('Hello, World!'); YX^{lD1Jj
end. _[0Ugfz(
ynZ!
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Nuva G`6U t
<. k^R>x V
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) ]Y;$~qQ
.> <@F4{*
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Visual Basic , LcMNP r
MsgBox "Hello, world!" cTRCQ+W6:
'或者 KO{}+~,.6
Print "Hello, world!" w\$b(HC
hzKfYJcQ|
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Visual FoxPro g](m& O
? "Hello, world!" QXXcJc~
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P-+ ^YN,
X11 ZJR{c 5TE
用一个程序 tvFJ^5
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xmessage 'Hello, world!' n>#h(
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用C++和gtkmm 2 laFkOQI
hrS/3c'<Z
#include <iostream> *qz]vUb/0
#include <gtkmm/main.h> &1w,;45
#include <gtkmm/button.h> $1Xg[>1g5
#include <gtkmm/window.h> }$$b6G
using namespace std; }jIb ^|#CD
ZO}V}3
class HelloWorld : public Gtk::Window \[,7#
{ J~c]9t
public: j$8~M
HelloWorld(); 1XHGW=n
virtual ~HelloWorld(); >fb*X'Zi%
protected: '}!dRpx
Gtk::Button m_button; =?FA9wm
virtual void on_button_clicked(); mtTJm4
}; d]@9kG
-nHc52,
HelloWorld::HelloWorld() : m_button("Hello, world!") K0+J!-a]7
{ u$a%{46
set_border_width(10); }F1^gN&QF
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); lJU[9)Q_
add(m_button); x&;{4F Nw
m_button.show(); <Ft.{aNq$c
} [9>1e
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HelloWorld::~HelloWorld() {} z6Mf>q
hPEK@
void HelloWorld::on_button_clicked() ){ wE)NN
{ } O!LTD
cout << "Hello, world!" << endl; RS$:]hxd>_
} ap=M$9L'
v"bOv"!al
int main (int argc, char *argv[]) YSZz4?9\
{ _{ ?1+
Gtk::Main kit(argc, argv); =;T971L`
HelloWorld helloworld; l(<o,Uv[`
Gtk::Main::run(helloworld); 3S <5s}
} &