“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。 lS5ny
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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》。 L,_.$1d
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以下是用不同语言写成的Hello World程序的几个例子: SZU
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Ada V9%aBkf8w
with Ada.Text_Io; use Ada.Text_Io; t*S."
q
procedure Hello is 8At<Wic
begin X` YwP/D
Put_Line ("Hello, world!"); *ZCn8m:-+
end Hello; }j{!-&
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汇编语言 r7mD{0s*
3251Vq %
x86 CPU,DOS,TASM VR?^HA9
MODEL SMALL 5]Ajf;W\
IDEAL Jf;?XP]z
STACK 100H aoW6U{\
JCniN";r[
DATASEG afG{lWE)
HW DB 'Hello, world!$' T]9\VW4
J5M+FwZq
CODESEG G=9d&N
MOV AX, @data MjL)IgT
MOV DS, AX 2 ][DZl
MOV DX, OFFSET HW Q4]4@96Aj
MOV AH, 09H ,El!fgL
INT 21H HfNDD|Zz
MOV AX, 4C00H !0VfbY9C
INT 21H B2=\2<
END I27,mS+]
g{k1&|
>pL2*O^{9
x86 CPU,GNU/Linux,NASM uRV<?y%
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). V>-b`e
;Enter this into "hello.asm" then type: 7*+]wEs
;"nasm -f elf hello.asm" xl9aV\W
;"ld hello.o -o hello" pL1i|O
;"./hello" OW;tT=ql
/7c~nBU
section .data ;data section declaration 22hSove.
msg db 'Hello World!',0AH W~n.Xeu{C
len equ $-msg ;string length ~:4kU/]
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section .text ;code section declaration | s+0~$O;
global _start ;entry point (start of execution) I&yVx8aH}
_start: mov edx,len ;string length 2!1.E5.I
mov ecx,msg ;string start Tb;d.^
mov ebx,1 ;file handle: stdout
g\fhp{gWB
mov eax,4 ;sys_write n
1b(\PA
int 80h ;kernel system call w0m^ &,;#
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mov ebx,0 ;return value c,EBF\r8*
mov eax,1 ;sys_exit Rg&-0b
int 80h ;kernel system call 'fV%Z
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imB# Eo4eY
x86 CPU,Windows,MASM32 {BBw$m, o
.386 7u.|XmUz
.model flat,stdcall <E|s\u
option casemap:none -[7O7'
;Include 文件定义
%V G/
include windows.inc e'*HS7g
include user32.inc .\Fss(Zn
includelib user32.lib l*aj#%ha
include kernel32.inc AbwbAm+
includelib kernel32.lib o?Nu:&yE
;数据段 pcS+o
.data _mE^rT
szCaption db 'A MessageBox!',0 @~
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szText db 'Hello,world!',0 t
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;代码段 _ o6G6e,
.code Lm*VN~2
start: R,2=&+ e
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK ^>&k]T`
invoke ExitProcess,NULL WKM)*@#,
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> m4w')r~
end start $o?@0
/TQ}}
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AWK fIC9WbiH-
BEGIN { print "Hello, world!" } e;YW6}'}
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b4 #R!
BASIC ^4Am
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传统版BASIC(例如GWBASIC): 's
x\P[a
2(!fg4#+
10 PRINT "Hello, world!" =1;=
20 END hjx)D
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或在提示符输入: h&@R| N
M[5[N{
?"Hello, world!":END {U!St@
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现代版BASIC(例如Quick BASIC): =nUW'
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Print "Hello, world!" &fP XU*l4
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以下的语句在Quick BASIC中同样有效: ]<uQ.~
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? "Hello,world!" .S\&L-{
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nQK|n^AU/
BCPL H&}ipaDO
GET "LIBHDR" cp
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o`,Qku k
LET START () BE 'rP]Nw
$( n_D8JF
WRITES ("Hello, world!*N") yI{5m^s{
$) 6~meM@
w2(guL($
}A$WO{2
Befunge 3 *S{;p
"!dlrow olleH">v ewsKH\#
, 4IdT'
^_@ he3SR@\T
L?&'xzt B
RH;:9_*F
Brainfuck p^m5`{1]x
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< _cDF{E+;
+++++++++++++++.>.+++.------.--------.>+.>. eHg3}b2r
%Tn#-
;+ "f
C JMBK{J K>
#include <stdio.h> mZk0@C&:6
JHn*->m
int main(void) )4Q?aMm
{ Z@D*1\TG=
printf("Hello, world!\n"); |Yi)"-
return 0; Fr?z"
} J<j&;:IRd
4_M>OD/"
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C++ {0\,0*^p
#include <iostream> Z5G!ct:W
{-zMHVw=}
int main() 1,y&d}GW
{ t/i5,le
std::cout << "Hello, world!" << std::endl; ]
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return 0; J a,d3K
} [jx0-3s:X
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x$/
A!W0S
C++/CLI
05\dl
int main() Z*{]
,
{ :y]Omp
System::Console::WriteLine("Hello, world!"); [ANuBNF
} vP!GJX&n5
7;`o(
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pI`?(5iK6|
C# (C Sharp) !SOrCMHx
class HelloWorldApp |Q~cX!;
{ AS!6XT
public static void Main() &Y P#M|
{ igf)Hb;5
System.Console.WriteLine("Hello, world!"); QA!_} N4n
} I 1d0iU
} UQCo}vM
%9C@ Xl
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COBOL iItcN;;7
IDENTIFICATION DIVISION. )-rW&"{U
PROGRAM-ID. HELLO-WORLD. BI[JATZG
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ENVIRONMENT DIVISION. PrQ?PvA<L
Y>."3*^
DATA DIVISION. F7m?xy
:!&;p
PROCEDURE DIVISION. .@ C{3$,VG
DISPLAY "Hello, world!". ]36sZ
*
STOP RUN. 0Y=![tO8
wbyE;W
?C0l~:j7D
Common Lisp @*N)i?>
(format t "Hello world!~%") EUYCcL'G
oz'\q0
ivgpS5 M`Y
DOS批处理 o;"OSp
@echo off @xsP5je]
echo "Hello, world!" :m=m}3/:
{@}?k s5
:yT-9Ze%q
Eiffel ExSe=4q#
class HELLO_WORLD /T^ JS
r9 y.i(j
creation Vpfp}pL
make PHg48Y"Nd
feature I7 QCYB|
make is t HD
local @(``:)Z<b
io:BASIC_IO ;Lw{XqT
do "yziXT@V
!!io 0rk]/--FGJ
io.put_string("%N Hello, world!") D*5hrkV9
end -- make ~cAZB9Fa
end -- class HELLO_WORLD e)nimq
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WE}kTq
Erlang FFhtj(hVgc
-module(hello). q+SD6qM
-export([hello_world/0]). HWns.[
{eJt,[Y *
hello_world() -> io:fwrite("Hello, World!\n"). 6Q4X6U:WB
3T\l]? z
JN/UUfj
Forth wo2@hav
." Hello, world!" CR Z!d7&T}
v4Zb?
Yb
MOn,Db$
Fortran S&O3HC
WRITE(*,10) 6q<YJ.,
10 FORMAT('Hello, World!') S-+"@>{HJ
STOP 05Fz@31~
END rr`;W}3
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09KcKhFB
HTML JG`Q;K
<HTML> v7
<HEAD> =-cwXo{Q.O
<TITLE> Hello World! </TITLE> gC%G;-gm
</HEAD> p Y)5bSA
<BODY> QB!~Wh
<p>Hello World!</p> :pX`?Ew`g
</BODY> .%BT,$1K
</HTML> h/eR
ql{(Lf$
#qU-j/Qf
HQ9+ yfQ5:X
H KAA-G2%M
Kr'f- {
p=GWq(S6
INTERCAL 0Q,g7K<d
PLEASE DO ,1 <- #13 nL@KX>
DO ,1 SUB #1 <- #238 -hcS]~F
DO ,1 SUB #2 <- #112 nZ1zJpBmI
DO ,1 SUB #3 <- #112 e<7.y#L
DO ,1 SUB #4 <- #0 l5%G'1w#,j
DO ,1 SUB #5 <- #64 @[<nQZw:
DO ,1 SUB #6 <- #238 K`&oC8p
DO ,1 SUB #7 <- #26 CQ7{1,?2
DO ,1 SUB #8 <- #248 {%)s.5Pfw
DO ,1 SUB #9 <- #168 +:=(#Y
DO ,1 SUB #10 <- #24 "]'?a$\ky:
DO ,1 SUB #11 <- #16 ~0$NJrUy
DO ,1 SUB #12 <- #158 :a8 YV!X
DO ,1 SUB #13 <- #52
`0H g y=
PLEASE READ OUT ,1 pA.J@,>`}
PLEASE GIVE UP mE O\r|A
2n><RZ/9
~"pKe~h
Java Xdi:1wW@p
public class Hello j.~!dh$mg
{ ^2d!*W|
public static void main(String[] args) 'ckQg=zPR
{ !g~1&Uw1
System.out.println("Hello, world!"); :(dHY
} $p!yhn7
} &uP~rEJl+
[=O/1T
sAo&
uZ
JSP =U[3PC-N@
<% =/<LSeLxH
out.print("Hello, world!"); ~pa!w?/bQ
%> `k(yZtb
i'd2[A.7I
A,i75kd
MIXAL 4?N8R$
TERM EQU 19 the MIX console device number %6Q4yk
ORIG 1000 start address ,1'4o3
START OUT MSG(TERM) output data at address MSG &aM7T_h8
HLT halt execution 5tQ1fJze
MSG ALF "MIXAL" NmK8<9`u
ALF " HELL"
F4=}}kU
ALF "O WOR" EM>}0V
ALF "LD " 'c\iK=fl
END START end of the program
IUR<.Y`
R1&unm0
\xg]oKbn
Nuva Z*G(5SqUh"
<..直接输出..> fEB7j-t
Hello, world! Cg*H.f%Mr
Gm*X'[\DD
<..或者..> sLE#q+W
oJ#,XMKga
<. zMIT}$L
// 不带换行 m*e{\)rd#
? "Hello, world!" I ZQHu h
kw2T>
// 或者 }68i[v9Njk
>#ZUfm{k$
// 带换行 *<1r3!
?? 'Hello, world!' q2HYiH^L
.> QMv@:Eo
R^{)D3
W0I#\b18
OCaml R_=6GZH$G
let main () = o1nURJ!
print_endline "Hello world!";; Z{'i F
r1RG TEkD
H@]MXP[_
Pascal <nEi<iAY>U
program Hello; (sWLhUgRX
begin HR}bbsqxVf
writeln('Hello, world!');
Ov<NsNX]
end. r'gOVi4t1*
dz Zb
1}~(Yj@f%
Perl vloF::1
#!/usr/local/bin/perl YKQr,
Now
print "Hello, world!\n";
}-~l!
EJ2yO@5O
1;VHM'
PHP K\|FQ^#UYm
<?php 1?Z4K/
print("Hello, world!"); eYx Kp!f
?> (p%>j0<
F2X0%te
(h:Rh
Pike Mw9 \EhA
#!/usr/local/bin/pike vTn}*d.K=
int main() Y`?-VaY
{ V^;jJ']
write("Hello, world!\n"); qP<Lr)nUH
return 0; ']+Uu'a
} @B}aN@!/
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{z|;Xi::"
PL/I >t7x>_~
Test: procedure options(main); AlJ} >u
declare My_String char(20) varying initialize('Hello, world!'); i~r l o^
put skip list(My_String); NIw\}[-Z0E
end Test; ,i@X'<;y
@V!r"Bkg.
g:EVhuK
Prolog 08*v~(T
goal c*~]zR>s!
write("hello,world!"). qgrg CJ
9?k_y ZV
#KO,~]k5|e
Python NF?
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#!/usr/local/bin/python ]kboG%Dl?9
print "Hello, world!" vhhC>
7
aM;W$1h
Q$fmD
REXX -
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say "Hello, world!" YID4w7|
4ni3kmvX
A=
w9V
Ruby edPUG
N
#!/usr/bin/ruby :<|<|qJWo
print "Hello, world!\n" M>/Zbnq
h\'n**f_x
VJS8)oI~
Scheme LcE+GC
(display "Hello, world!") twx[s$O'b
(newline) (IPY^>h
XO'l Nb.
FJd]D[h
sed (需要至少一行输入) FLY
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sed -ne '1s/.*/Hello, world!/p' J4\ qEO
!* OJ.W&
8}(]]ayl
Smalltalk d \35a4l
Transcript show: 'Hello, world!' }m-FGk
!3ctB3eJ
C/-63O_
SNOBOL Zcc9e03
OUTPUT = "Hello, world!" y
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END /g4f`$a
=ha{Ziryo
b2FO$Os
SQL +U3m#Y )k
create table MESSAGE (TEXT char(15)); NhYLtw^u
insert into MESSAGE (TEXT) values ('Hello, world!'); Kx%Sku<F'
select TEXT from MESSAGE; NrJKbk^4u/
drop table MESSAGE; d0,s"K7@
_x5 3g
A
T'b_W,m~,u
Tcl 7!N2-6GV
#!/usr/local/bin/tcl z+>}RT]
puts "Hello, world!" EEW_gFn
k Zq!&
-bU oCF0
TScript @W9x$
? "Hello, world!" BGu?<bET
*~x/=.}
mOlI#5H
Turing Kc^;vT>3
put "Hello, world!" J`^I./
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TU
1I} ,
UNIX-style shell I2nhqJy^
程序中的/bin/sh可改为您使用的shell _> *jH'
~7Tc$
"I
#!/bin/sh Mwr"~?\\
echo 'Hello, world!' G"XVn~]
<|Pun8j
PxS8 n?y
GUI I=NZokfS
+@/"%9w
Delphi n .RhxgC<
program HelloWorld; #*(td<Cp
uses :B:"NyPA
Dialogs; =Fr(9(
begin 9b*nLyYVz
ShowMessage('Hello, World!'); M%0C_=zg
end. gE?|_x#
\9g+^vQg
;hjwD
Nuva y)@[Sl>
<. `u&Zrdr,
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) V:c;-)(
.> %GS(:]{n
<>aw
1WM+
7F{3*`/6
Visual Basic =^5Alba/
MsgBox "Hello, world!" m-*hygkcDu
'或者 eXf22;Lz
Print "Hello, world!" p ObX42
ikSt"}/hd
d >t<_}
Visual FoxPro t?'!$6
? "Hello, world!" !_cg\KU#
#Ibp(
E}nH1
X11 pxh"B\"4*
用一个程序 \hEN4V[
0p!>JQ]m
xmessage 'Hello, world!' 7*Ej. HK
"pRtczxOgR
用C++和gtkmm 2 YS *9t
Q{
Nqa&_5"
#include <iostream> 5X:*/FuS@
#include <gtkmm/main.h> ?3.b{Cq{-
#include <gtkmm/button.h> ^8AXxE
#include <gtkmm/window.h> *=I}Qh(1
using namespace std; zp%Cr.)$
6U R2IxbE
class HelloWorld : public Gtk::Window `6]%P(#a
{ r 0iK
public: VYk!k3qS
HelloWorld(); .G#8a1#
virtual ~HelloWorld(); .jk@IL
protected:
`yH<E+
Gtk::Button m_button; 9|gr0~j
virtual void on_button_clicked(); E{Ov>osq
}; \Yc'~2n
r'HtZo$^R
HelloWorld::HelloWorld() : m_button("Hello, world!") ^!<BQP7
{ m0;CH/D0
set_border_width(10); 6&