“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。 y3V47J2o
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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》。 5i3nz=~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: ?=Z0N&}[
Ada `p^xdj}
with Ada.Text_Io; use Ada.Text_Io; P}p6{
procedure Hello is ;}4e+`fF|
begin 0ipYXbC
Put_Line ("Hello, world!"); dI8y}EbE~
end Hello; g!;Hv
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汇编语言 ;V~~lcD&Y`
TH}+'m
x86 CPU,DOS,TASM o{QPW
MODEL SMALL G|]39/OO3{
IDEAL {5:V
hW}
STACK 100H 9o5_QnGE
N`rOlEk
DATASEG <wt9K2,
HW DB 'Hello, world!$' o[eIwGxZ
*(@[E
CODESEG J$<g"z3
MOV AX, @data TBqJ.a
MOV DS, AX QI2T G,
MOV DX, OFFSET HW ep"54o5=d
MOV AH, 09H 7_#i,|]58
INT 21H E
:Y
*;
MOV AX, 4C00H KEj-y+
INT 21H 5zBsu lRt
END nK9A=H'Hc
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x86 CPU,GNU/Linux,NASM ^Ru/7pw5
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ^^Tu/YC9x
;Enter this into "hello.asm" then type: U8KEg)Msk
;"nasm -f elf hello.asm" #zcnc$x\
;"ld hello.o -o hello" AiO29<
;"./hello" _,4f z(
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section .data ;data section declaration `cr.C|RT:
msg db 'Hello World!',0AH =p)Wxk
len equ $-msg ;string length pJ#R :#P
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section .text ;code section declaration UI 7JMeV
global _start ;entry point (start of execution) yVM
1W"Q
_start: mov edx,len ;string length 29#;;n}p
mov ecx,msg ;string start ewtoAru
mov ebx,1 ;file handle: stdout @GGPw9a
mov eax,4 ;sys_write ,Mwj`fgh
int 80h ;kernel system call $u9y
H Z
<3>Ou(F
mov ebx,0 ;return value xCV3HnZ
mov eax,1 ;sys_exit =ITMAC\
int 80h ;kernel system call <zK9J?ZQW>
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@BN cIJk9
x86 CPU,Windows,MASM32 q<b;xx
.386 (k..ll p~
.model flat,stdcall {^bs
}($J
option casemap:none +'x`rk
;Include 文件定义 xla9:*pPn
include windows.inc "rr,P0lgX
include user32.inc |!)3[<.
includelib user32.lib g9;}?h
include kernel32.inc }_L@CpG
includelib kernel32.lib v:<UbuJw
;数据段 KPUc+`cN%
.data &k?Mt#J
szCaption db 'A MessageBox!',0 <c{RY.1[
szText db 'Hello,world!',0 -_ [Z5%B
;代码段 #$Z|)i]w
.code 94F9f^ L
start: j%KLp4J/e
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK SA|f1R2uS
invoke ExitProcess,NULL -<i&`*zG
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ?'h<yxu]u0
end start Oav^BhUO
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swnov[0
AWK UGPD5wX?
BEGIN { print "Hello, world!" } ]v 6u
s"G6aM
@`?"#^jT
BASIC vGC^1AM
传统版BASIC(例如GWBASIC): 2`l$uEI3oJ
8KW}XG
10 PRINT "Hello, world!" (CH F=g
20 END 2|#3rF
g R(*lXm5w
或在提示符输入: 0%+T U4Xx
t.>vLzrU
?"Hello, world!":END ab'
f:
A[ ZJS
现代版BASIC(例如Quick BASIC): _#e='~;
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Print "Hello, world!" BRV /7ao="
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以下的语句在Quick BASIC中同样有效: ]`y4n=L.
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? "Hello,world!" `yHV10
rsvZi1N4w$
/z,sM"d
BCPL z8mR< q%`
GET "LIBHDR" q0w5ADd
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LET START () BE abCcZ<=|b
$( ?4_^}B9
WRITES ("Hello, world!*N") |jaUVE_2[
$) l<{]%=Qg
^C@uP9g
L$@^EENS
Befunge HH2*12e
"!dlrow olleH">v >wM%|j'
, SA{A E9y
^_@ oyJ/Oe
{
Cfb/f]*M
t[F tIj6
Brainfuck vBQ5-00YY=
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 2,;+)
+++++++++++++++.>.+++.------.--------.>+.>. +*d,non6v
p H?VM&x
?Gj$$IAe
C 3b{8c8N^
#include <stdio.h> ^,b*.6t
f| 3`8JU
int main(void) WUdKj
{ *6q8kQsz^1
printf("Hello, world!\n"); \y:
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return 0; .F?yt5{5No
} `t: 7&$>T
T2}I,{U
<i~ (
8F\
C++ <h
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#include <iostream> 1p23&\\~
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int main() &m4
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{ M,t8<y4W/
std::cout << "Hello, world!" << std::endl; @"kA&=0;|J
return 0; i,S%:0c7)
} |VlAt#E
&.+[~2
M`KrB5a+6
C++/CLI ()(@Qcc
int main() C1|e1
{ _1dG!!L_
System::Console::WriteLine("Hello, world!"); Yiu)0\ o
} Q9 kKk
A`=ESz
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C# (C Sharp) p2!x8`IB*
class HelloWorldApp -deY,%
{ -d%bc?
public static void Main() H<%7aOwO2
{ 0[T!}F^%e
System.Console.WriteLine("Hello, world!"); FD#?pVyPn^
} Vs8os+
} X5qU>'?`
wv
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AT+|}B!
COBOL /zuU
IDENTIFICATION DIVISION. '7wI 2D
PROGRAM-ID. HELLO-WORLD. L,waQk / @
^gH.5L0]gH
ENVIRONMENT DIVISION. phl5E:fIKx
}^?dK3~q
DATA DIVISION. 68Wm=j.m
6H VS0
PROCEDURE DIVISION. W8yr06{]
DISPLAY "Hello, world!". 2[9hl@=%
STOP RUN. Trbgg
(Y,
@-V
11X-X
Common Lisp 27t:-O
(format t "Hello world!~%") z.]t_`KuF9
HG=!#-$9
VV?+q)
DOS批处理 ;{q7rsE
@echo off C
n\'sb{
echo "Hello, world!" Puily9#
uMPJ
9:fVHynr
Eiffel > g8;x#
class HELLO_WORLD z:RwCd1\
M)I&^mm39
creation \KLWOj%
make <R*.T)Z 1
feature ~Rk6@&ZS}
make is
HHWB_QaL
local ;'}1
io:BASIC_IO 4rwfY<G
do @ L% 3}
!!io
Cg}cD.
io.put_string("%N Hello, world!") (
y2%G=.j
end -- make ~e~4S~{
end -- class HELLO_WORLD 1-r1hZ-
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zJ3{!E}`v
Erlang &Zd{ElM
-module(hello). m,Q<4'
-export([hello_world/0]). H:,rNaz7D^
jp=^$rS6[
hello_world() -> io:fwrite("Hello, World!\n"). x?va26FV
RQ9fA1YP
JT[|l-\zo
Forth %Ni)^
." Hello, world!" CR i?qS8h{
9d#-;qV
HR\yJt
Fortran < I8hy$+6
WRITE(*,10) {/XzIOO;b
10 FORMAT('Hello, World!') p!|Wp
STOP >Ah [uM
END ="d}:Jl
)(PA:j
r$=iM:kERC
HTML P9G c)$6{p
<HTML> a&.8*|w3
<HEAD> |"5NI'X?
<TITLE> Hello World! </TITLE> eDX{}Dq(
</HEAD> 6n
<BODY> UXDd8OJL
<p>Hello World!</p> (t>BO`,
</BODY> jNaK]
</HTML> rVt6tx
db@i*Bf
h.sH:]Z
HQ9+ Pqo"~&Y|~
H c:>&Bg&,6T
u~bk~3.I
lyF~E
INTERCAL DN;g2R`f
PLEASE DO ,1 <- #13 vbmi_[,U
DO ,1 SUB #1 <- #238 <^
@1wg
DO ,1 SUB #2 <- #112 ~>k<I:BtrT
DO ,1 SUB #3 <- #112 9,`WQ+OI
DO ,1 SUB #4 <- #0 %%G2w63M
DO ,1 SUB #5 <- #64 A%k@75V@
DO ,1 SUB #6 <- #238 zy
DO ,1 SUB #7 <- #26 $FNj>1
DO ,1 SUB #8 <- #248 8}XtVF;
DO ,1 SUB #9 <- #168 g9<*+fV
2$
DO ,1 SUB #10 <- #24 U$# ?Lw
DO ,1 SUB #11 <- #16 U;`N:~|p#
DO ,1 SUB #12 <- #158 ^0pd- n@pn
DO ,1 SUB #13 <- #52 VI74{='=
PLEASE READ OUT ,1 *q=pv8&*s
PLEASE GIVE UP g&`e2|[7
}NMA($@A
*_!nil 3(i
Java pTprU)sa7
public class Hello [_G_Wl'#8
{ pBL,kqYNA>
public static void main(String[] args) -ce N}Cb3
{ .Quu_S_vH
System.out.println("Hello, world!"); i,8h
B(M!
} ;
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} =;l.<{<VH
A Ns.`S
4fT,/[k?
JSP plh.-"
<% I
^?TabL
out.print("Hello, world!"); Z[)t34EY"
%> Rf^$?D&^
|j^^*z@
~-.}]N+([
MIXAL $.a<b^.Xi
TERM EQU 19 the MIX console device number o:.={)rX
ORIG 1000 start address 5@%$M$E
START OUT MSG(TERM) output data at address MSG P%8
Gaa=
HLT halt execution sG=D(n1
MSG ALF "MIXAL" ?w#V<3=
ALF " HELL" ^vn8s~#
ALF "O WOR" aqQ
YU5l4~
ALF "LD " 6y)TXp
END START end of the program 47|Lk]+O
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s )POtJ<
Nuva +0{m(%i
<..直接输出..> 6NPCp/
Hello, world! MCZTeYnx
!g
#
<..或者..> <1YINkRz
:1^
R$0d
<. $A;jl`ng
// 不带换行 r{!]`
'8
? "Hello, world!" 3k.{gAZKh
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// 或者 qjFz}6
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// 带换行 q_bE?j{
?? 'Hello, world!' I<`K;El'
.> P^&%T?Y6z
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fU
9t:F![rg
OCaml ]v(8i3P84
let main () = 0x7F~%%2
print_endline "Hello world!";; V(I!HT5.W
[=7=zV;}4
2BZYC5jy
Pascal sD H^l)4h
program Hello; VG0Ty;bV
begin O-J;iX }
writeln('Hello, world!'); GvSSi'q~B
end. <o@&I "
o
ajC'C!"^Ty
W/!M
eTU&E
Perl
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#!/usr/local/bin/perl 6i|5`ZO
print "Hello, world!\n"; *oopdGue
m?'H7cFR
U_i%@{
PHP 'n4Ro|kA
<?php sL" h
print("Hello, world!"); 3#N'nhUzA
?> ]L+YnZ?6
3*)<Y}Tc
XtY!fo*
Pike Uc%n{
a-a
#!/usr/local/bin/pike Fa<>2KkOr
int main() zx` %)r
{ ,)/gy)~#
write("Hello, world!\n"); vUm#^/#I
return 0; Z6s-n$dSm
} EQ
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I@Cq<:+(3
1 aWzd[i
PL/I MDV<[${
Test: procedure options(main); !%MI9Ok
declare My_String char(20) varying initialize('Hello, world!'); W>f q 9
put skip list(My_String); f@S n1c,Mk
end Test; 3y^PKIIrt
[v47_ 5O
Pq\
`0/4_
Prolog 0lpkG
="&r
goal `+DH@ce
write("hello,world!"). {
0\Ez}
J]&^A$
5OEo(&
Python :ohGG ,`Dh
#!/usr/local/bin/python
Lk%`hsv
print "Hello, world!" grD[7;1~:)
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l5h+:^#M5c
REXX /my5s\;s|z
say "Hello, world!" k+9*7y8w
SEf RU`
BF^dNgn+%K
Ruby ),{v
#!/usr/bin/ruby q+iG:B /Z
print "Hello, world!\n" 8y:/!rRN
CdBpz/
{F!/\2a
Scheme Eep~3U
(display "Hello, world!") 1`hmD1d
(newline) LTZ8Eu
_+!@c6k)ra
2[!3!@.
sed (需要至少一行输入) 9Lus,l\
sed -ne '1s/.*/Hello, world!/p' 6a*?m{
-L-#-dK'
$-D}y:
Smalltalk 3Pu8IXW
Transcript show: 'Hello, world!' V0)bPcS/
Fqt,VED
r'J="^k{
SNOBOL jKh:}yl4
OUTPUT = "Hello, world!" xzi_u.iOP
END 1Clid\T,o
= K)[3mXX
LC1WVK/
SQL i)iK0g"2
create table MESSAGE (TEXT char(15)); 0g2?
insert into MESSAGE (TEXT) values ('Hello, world!'); @T"-%L8PL
select TEXT from MESSAGE; z*a-=w0
drop table MESSAGE; ^h$^j
XE>w&
u^O!5 'D%
Tcl `@q\R-`
#!/usr/local/bin/tcl 0BwxPD#6bv
puts "Hello, world!" hW!2C6
tk)JE^'
o%b6"_~%3
TScript {q/;G!ON.S
? "Hello, world!" S$O5jX 0
o;9 G{Xj3@
"S]G+/I|iw
Turing 9u6VN]divB
put "Hello, world!" Gx7bV}&PN
M}!
qH.W
;^TSla+t+
UNIX-style shell lak,lDt]
程序中的/bin/sh可改为您使用的shell *@ {
ur:8`+"
(
#!/bin/sh P BVF'~f@j
echo 'Hello, world!' )Q 5 x%
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p,V%wGM
GUI $bDaZGy
}[{9u#@#
Delphi O14\_eAu6
program HelloWorld; A<]
$[2qPj
uses ?y]R /?
Dialogs; i[?VF\Y(
begin nC%<BatQ
ShowMessage('Hello, World!'); ]v/pMg#-
end. NQGa=kXeJ
4ClSl#X#i
C2aA])7D
Nuva **\?-*c=U
<. TI}a$I*
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) dVPY07P
.> K.=5p/^a
=van<l4b#n
y"Pd>61h
Visual Basic K5rra%a-7
MsgBox "Hello, world!" P5H_iH
'或者 m^\&v0
Print "Hello, world!" <-mhz`^
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fP[S.7F+No
Visual FoxPro 2FW"uYA;6
? "Hello, world!" 2z.~K&+x
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a)4%sX*I
X11 .EPv4[2%F8
用一个程序 Qqi?DW1)-
Z4X, D`s
xmessage 'Hello, world!' qqJghV$Oj
hH9~.4+*`g
用C++和gtkmm 2 eZ$M#I=o
Sgr. V)
#include <iostream> `rXb:P7m{j
#include <gtkmm/main.h> t 9t
'9
#include <gtkmm/button.h> #1C]ZV] B
#include <gtkmm/window.h> eIEL';N6
using namespace std; W':b6}?
,>01Cs=t8
class HelloWorld : public Gtk::Window x#5vdBf
{ "hQGk
public: cRMyYd J o
HelloWorld(); q`'"+` h
virtual ~HelloWorld(); t`'jr=e,~
protected: LXWI'nxV
Gtk::Button m_button; qcouZO
virtual void on_button_clicked(); %Oo
f/q
}; \4LTViY]
xFekSH7[F
HelloWorld::HelloWorld() : m_button("Hello, world!") (c&%1bJ
{ IBvn
q8\
set_border_width(10); e/_QS}OA
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); pGfGGY>i%
add(m_button); s_}6#;
m_button.show(); ZPY&q&R
} >&Oql9_
BzzZ.AH~
HelloWorld::~HelloWorld() {} Vhh=GJ
2X[oge0@
void HelloWorld::on_button_clicked() eX>*}pI
{ Gov.;hy
cout << "Hello, world!" << endl; ByuBZ!m
} &XdTY +
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tHa5`
int main (int argc, char *argv[]) ~#4FL<W
{ 9pPLOXr ,
Gtk::Main kit(argc, argv); xkw=os
HelloWorld helloworld; G@`ZDn
Gtk::Main::run(helloworld); -%]1q#C>@
} DRR)mQBb
jVLJqWP'!
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Java RjH68=n
import java.awt.*; (X
Oz0.W
import java.awt.event.*; \K~wsu/?`
UPP"-`t
public class HelloFrame extends Frame WR`NISSp
{ fN&uat