“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。 `u.t[
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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》。 sTOa
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以下是用不同语言写成的Hello World程序的几个例子: hzI|A~MFB
Ada ?%VI{[y#>
with Ada.Text_Io; use Ada.Text_Io; eeHP&1= 7
procedure Hello is $t5V=}m>
begin TLd `1Ac
Put_Line ("Hello, world!"); @"Z7nJX
end Hello; =1P6Vk
kPQtQh]y%
aA'|Rg,
汇编语言 %0 #XPc("
u7xDau(c
x86 CPU,DOS,TASM rJa$9B*^
MODEL SMALL uZZU{U9h
IDEAL @]qBF]6
STACK 100H *=fr8
k"g._|G
DATASEG 2 o#,kGd
HW DB 'Hello, world!$' K_
lVISBQ
A<\JQ
CODESEG ,+g&o^T
MOV AX, @data @:tj<\G]
MOV DS, AX 8vuCc=
MOV DX, OFFSET HW 7 Sa1;%R
MOV AH, 09H Sa"9^_.2#
INT 21H +fx8muz:y
MOV AX, 4C00H k|BHnj
INT 21H BYY RoE[P
END w_ {,<[#
<xJ/y|{
4d_s%n?C
x86 CPU,GNU/Linux,NASM Y%|@R3[Nk
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). =<@\,xN>C
;Enter this into "hello.asm" then type: }tPk@$
;"nasm -f elf hello.asm" =pA
IvU
;"ld hello.o -o hello" DMF
-Y-h
;"./hello" LkLN7|
SEl#FWR
section .data ;data section declaration YF:2>w<
msg db 'Hello World!',0AH OG3/-K 8R
len equ $-msg ;string length GHF_R,7
fbFX4?-
section .text ;code section declaration YpUp@/"
global _start ;entry point (start of execution) zq1mmFIO
_start: mov edx,len ;string length N~pIC2Woo
mov ecx,msg ;string start y<XlRTy[}
mov ebx,1 ;file handle: stdout Dml*T(WM>
mov eax,4 ;sys_write O[9-:,B{w
int 80h ;kernel system call T\VNqs@
=2y8CgLj
mov ebx,0 ;return value s7r9,8$
mov eax,1 ;sys_exit #a| L3zR5v
int 80h ;kernel system call m-T~fJ
0Q5 93F
bXYA5wG
x86 CPU,Windows,MASM32 qQxz(}REu9
.386 7@a 0$coP
.model flat,stdcall D\^WXY5e%y
option casemap:none 9Q W&$n^
;Include 文件定义 j%<}jw[2
include windows.inc o2-@o= F
include user32.inc gM>=%/.
includelib user32.lib rOD1_X-
include kernel32.inc i.iio-
includelib kernel32.lib +Ra3bj l
;数据段 -{|`H[nmD
.data 5/m$)wE
szCaption db 'A MessageBox!',0 |m,VTViv;i
szText db 'Hello,world!',0 :f'&z47
;代码段 [O-sVYB
.code ID1?PM
start: LF*Q!
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK y?30_#[dN
invoke ExitProcess,NULL AF4?IH
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> %u p}p/?
end start b'x$2K;E
2aNT#J"_
kvsA]tK.
AWK m:`@?n~..
BEGIN { print "Hello, world!" } c\cZ]RZ
xPmN},i'R$
X`zC^z}
BASIC 5 HV)[us
传统版BASIC(例如GWBASIC): IGj`_a
KA]*ox6j;
10 PRINT "Hello, world!" ]!YtH]}
20 END e[Xq
]Ql 0v"` F
或在提示符输入: (7$$;
N:+
taz-
?"Hello, world!":END 7CvD'QW /
8zQfY^/{M
现代版BASIC(例如Quick BASIC): s<T?pH
cep$_Ja
Print "Hello, world!" o96:4j4
9\O(n>
以下的语句在Quick BASIC中同样有效: >kY p%r6
e (\I_
? "Hello,world!" u@ N~1@RT|
T|'&K:[TJ
OOy}]uYF`
BCPL CyM}Hc&w
GET "LIBHDR" vahoSc;sw
2M6dMvS
LET START () BE v"1Po_`
$( mVH,HqsXa
WRITES ("Hello, world!*N") setLdEi
$) W"(u^}
8:g!w:$x
jMpa?Jp 1
Befunge DvT+`X?R
"!dlrow olleH">v VQ
|^
,
C B}BQd
^_@ G!-J$@P
{sc[RRN~C
`bP?o
Brainfuck `^8*<+
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< f]_mzF=&
+++++++++++++++.>.+++.------.--------.>+.>. >BiRk%x
!=zx
~$aTM_4
C c4] u&tvjJ
#include <stdio.h> pC^[ [5A
.hz2&9Ow
int main(void) |`]oc,1h@
{ ePA;:8)_j
printf("Hello, world!\n"); nm):SEkC
return 0; CIQwl 6H9
} 5+L8\V9;
k=uZ=tUft*
ba&o;BLUy
C++ +i)AS0?d
#include <iostream> .Ty,_3+{#p
@36S}5Oa
int main() l{EU_|q
{ BI/y<6#rR
std::cout << "Hello, world!" << std::endl; &>=#w"skb6
return 0; B)a@fmp"a
} "?H+
u/8$
iwo$\
jsWX 6(=
C++/CLI -3k;u
int main() BTs0o&}e
{ r<_2qICgP
System::Console::WriteLine("Hello, world!"); d
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} 41'EA\V
,wTg$g-$
3ZN>9`
C# (C Sharp) pzSqbgfrQ
class HelloWorldApp G+C}<S}
{ |Mlh;
public static void Main() DPeVKyjU
{ @LC~*_y
System.Console.WriteLine("Hello, world!"); GC?S];PL
} E0jUewG
} L]>4Nd
J!<#Nc
||f vKyKW>
COBOL j J-d/"(
IDENTIFICATION DIVISION. T^NJ4L4#
PROGRAM-ID. HELLO-WORLD. TU-c9"7M~
j`Nh7+qs
ENVIRONMENT DIVISION. fp-m.d:|
,4yG(O$)
DATA DIVISION. "cQvd(kug
N1s.3`
PROCEDURE DIVISION. 19w_tSg
DISPLAY "Hello, world!". PC0HH
STOP RUN. LV\ieM
3B -NYJa
S|) J{~QH
Common Lisp 6d};|#}
(format t "Hello world!~%") IadK@?X6j
IO6MK&R
;x16shH
DOS批处理 :r-.r"[m-
@echo off h-,?a_
echo "Hello, world!" c+wuC,
bZK+9IR
)5'rw<:="
Eiffel {9Xm<}%u]]
class HELLO_WORLD 3Mxz_~
Tfr`?:yF
creation $)l2G;&
make niQ+EAD
feature >^;(c4C
make is Jxf}b}^T
local ,,Jjr[A_j
io:BASIC_IO 4 *H(sq
do 7^&lbzVbm(
!!io YK7 \D:
io.put_string("%N Hello, world!") ),MU+*`
end -- make gh'kUZG
a
end -- class HELLO_WORLD 'Z59<Y a&x
,T/GW,?
cB_pyX9Z
Erlang "wC0eDf
-module(hello). CH55K[{<
-export([hello_world/0]). F:M/z#:~
8 NxUx+]
hello_world() -> io:fwrite("Hello, World!\n"). h)7v1,;w'
48H5_9>:
\)p4okpR
Forth Tw}@+-
." Hello, world!" CR 0
-!?W
"k/;`eAP
H]VsOr
Fortran AL(n*,
WRITE(*,10) @;g`+:=
10 FORMAT('Hello, World!') $ 9S>I'
STOP KBd7|,j
END 0BT;"B1
$xLEA\s
BN_!Y)Fl
HTML ;_>s0rUV
<HTML> t) ;
<HEAD> RA#\x.
<TITLE> Hello World! </TITLE> +[>yO _}
</HEAD> UIO6|*ka
<BODY> "9)1K!tH
<p>Hello World!</p> +dDJes!]
</BODY> k,a,h^{}j
</HTML> JqL<$mSep
"ugX
/r$_
zC<'fT/rG
HQ9+ l0eANB%Y=@
H s'R~r
>&*6Fqd
w g$D@E7
INTERCAL z~GVvgd
PLEASE DO ,1 <- #13 Kh>?!`lL
DO ,1 SUB #1 <- #238
=~,$V<+c
DO ,1 SUB #2 <- #112 #k"1wSx16
DO ,1 SUB #3 <- #112 zfk'>_'
DO ,1 SUB #4 <- #0 nwZ[Ygl|
DO ,1 SUB #5 <- #64 R
tXF
DO ,1 SUB #6 <- #238 3N(8|wh
DO ,1 SUB #7 <- #26 p=:7 atE
DO ,1 SUB #8 <- #248 *5ka.=Qs
DO ,1 SUB #9 <- #168 bx+(.F
DO ,1 SUB #10 <- #24 n,CD4Nv
DO ,1 SUB #11 <- #16 ]hCWe0F
DO ,1 SUB #12 <- #158 X7'h@>R
DO ,1 SUB #13 <- #52 >qSO,$
PLEASE READ OUT ,1 g_3rEvf"4
PLEASE GIVE UP 3MS3O.0]/
ui s:\Uc
yVbg,q'?
Java 9'L1KQ
public class Hello Vvxc8v:
{ GE/IaLo
public static void main(String[] args) V Z4nAG
{ (H|%?F;{l
System.out.println("Hello, world!"); o+)m}'T8
} z|t.y.JX
} $i1>?pb3
O3slabE#
'=@-aVp
JSP \t&n
jMWpZ
<% b;&Yw-\nZ;
out.print("Hello, world!"); LH?gJ8`
%> Z_eqM4{
`Z;B^Y0
YyX^lL_
MIXAL ~|$) 1
TERM EQU 19 the MIX console device number A;/Xt
ORIG 1000 start address ^^j|0qshL
START OUT MSG(TERM) output data at address MSG J.CZR[XF#
HLT halt execution ThT.iD[
MSG ALF "MIXAL" .{-iq(3
ALF " HELL" ,=XS%g}l4
ALF "O WOR" }[hDg6i
ALF "LD " bOnukbJ
END START end of the program o$qFa9|Ec?
]ci|$@V
%>x0*T$$
Nuva ]% ZjD
<..直接输出..> _3FMQY(
Hello, world! s525`Q;
u:{.
Hn`
<..或者..> T8M[eSbZ
`gA5P %
<. /ab K/8ZQ
// 不带换行 CM@"lV_
? "Hello, world!" l#J>It\
lzQ&)7`
// 或者 c+\Gd}IJq
=^".{h'-
// 带换行
M\$<g
?? 'Hello, world!' H~1?MAX
.> E!(`275s
+MZ2e^\F
N]<~NG:6b
OCaml S+E3;' H
let main () = y|2g"J
print_endline "Hello world!";; lfI7&d*
5Dh&ez`oR'
r:S5x. P2
Pascal EzY
scX.[
program Hello;
=}1~~
begin 4tN~UMw?
writeln('Hello, world!'); <P
Z\qE*+y
end. GQc%OQc\
9DocId.
BRQ5
Perl =*O9)$b
#!/usr/local/bin/perl F\$}8,9
print "Hello, world!\n"; )-6[Bw
N'1 [t
Yv|bUZ@
PHP DW;.R<8
<?php 39^uLob
print("Hello, world!"); )-7(Hv1
?> zJym`NF
A UO0
TuT=
Pike m]b.P,~v
#!/usr/local/bin/pike ~o\]K
int main() b9!J}hto,
{ Wug ?CFX+T
write("Hello, world!\n"); Tr+Y@]"
return 0; X$Qi[=L
} L``mF(R^
1</t #r
N_~Wu
PL/I E9NGdp&-Ah
Test: procedure options(main); 8*X
L19N
declare My_String char(20) varying initialize('Hello, world!'); OjL"0imN6
put skip list(My_String); kKTED1MW&W
end Test; ny;)+v?mN\
ZJ'H y5?
O#ajoE
Prolog zK]%qv]
goal l=G#gKE
write("hello,world!"). F_
lj>;}a5
oz7udY=]0
5nlyb,"^g
Python 2T?1X{g
#!/usr/local/bin/python +/ d8d
print "Hello, world!" o ML
K!]a
a[OLS+zf!P
]0nC;|]@Lx
REXX uTFEI.N
say "Hello, world!" 6O?S r,
9U%}"uE
jF2GHyB
Ruby [ Sa
C
#!/usr/bin/ruby %y~]3XWik
print "Hello, world!\n" <.]& FPJ
*`/@[S2,cu
\% Ih 6
Scheme [UrS%]OSR
(display "Hello, world!") s%re>)=|
(newline) $XzlW=3y
"pJEzC
JN|#
sed (需要至少一行输入) B~?Q. <M
sed -ne '1s/.*/Hello, world!/p' Fd=`9N9
Hm[!R:HW,S
QRix_2+
Smalltalk #8HXR3L5=!
Transcript show: 'Hello, world!' Nv#, s_hG
6>^k9cJp
Q/SC7R&"t
SNOBOL 4E94W,1%,Y
OUTPUT = "Hello, world!" "+C\f)
END sX?7`n1U
HBYpjxh
WM7/|.HQ
SQL d|HM
create table MESSAGE (TEXT char(15)); "+Yn;9
insert into MESSAGE (TEXT) values ('Hello, world!'); ;'+cT.cmH
select TEXT from MESSAGE;
K8we*
drop table MESSAGE; \d`Sz
*
?Gu>!7
y6yseR!
Tcl smS0Rk
#!/usr/local/bin/tcl T`G"2|ISS
puts "Hello, world!" M- A}(r +J
.DsYR/
Z*B(L@H
TScript vG} oo
? "Hello, world!" |a\TUzq
%P6!vx:&^b
\5_^P{p7<
Turing ':dHYvP/UX
put "Hello, world!" eF\C?4
S?tLIi/
!d)i6W?
UNIX-style shell ^%^0x'"
程序中的/bin/sh可改为您使用的shell ZJm^znpw6
xb;mm9H
#!/bin/sh e@By@r&nql
echo 'Hello, world!' 1i2O]e!
y?hW#l~#X
M] *pBc(o0
GUI Puh&F< B
4Fq}*QJ-
Delphi _
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program HelloWorld; 0&~u0B{
uses \]El%j4
Dialogs; ';F][x 5j
begin +.cv,1Vx
ShowMessage('Hello, World!'); :Aw VeX@
end. Y6a|\K|
p-k qX
>AJ|F)
Nuva 7L"/4w
<. g7-K62bb
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) :P~Owz
.> 7m:, -xp
iI7~9SCE
AJu.
Visual Basic m6D4J=59
MsgBox "Hello, world!" k"$V O+}m
'或者 *Yw6UCO
Print "Hello, world!" 2hP8ZfvIR
WTx;,TNG
>wwEa4
Visual FoxPro VXS9E383
? "Hello, world!" `R RORzXoS
,d#4Ib
;U&VPIX$
X11 \\JXY*DA:+
用一个程序 4NIfQYC.
TF>F7v(,45
xmessage 'Hello, world!' \BW(c)Q
Pl4d(2
7
用C++和gtkmm 2 zAewE@N#_
}: e9\r)
#include <iostream> g,nE iL
#include <gtkmm/main.h> ?$Pj[O^hl
#include <gtkmm/button.h> LJD"N#c
#include <gtkmm/window.h> q`hg@uwA{`
using namespace std; Qsa2iw{
}- Sr@bE
class HelloWorld : public Gtk::Window Alz#zBGb
{ 4~4Hst#^
public: *6L^A`_1]
HelloWorld(); %~~Q XH\
virtual ~HelloWorld(); _ sd?l
protected: K4"as9oFP
Gtk::Button m_button; SW7%SX,xM
virtual void on_button_clicked(); @p;4g_F
}; Tb^9J7]
y06 2/$*$
HelloWorld::HelloWorld() : m_button("Hello, world!") j*"s~8u4
{ CJ_B.
set_border_width(10); 6C:Lq%}
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); @,]v'l!u
add(m_button); j^gF~Wz^
m_button.show(); _[x(p6Xp
} l< Y x
<qBPN{'a"
HelloWorld::~HelloWorld() {} MEu-lM7v
aozk,{9-
void HelloWorld::on_button_clicked() vzL>ZBeZ
{ !E%!,
cout << "Hello, world!" << endl; Po5}Vh
} 0*q:p`OLw*
x;+,lP
int main (int argc, char *argv[]) QO8/?^d
{ m +gVGK
Gtk::Main kit(argc, argv); hRP0Djc
HelloWorld helloworld; SNQ+ XtoO
Gtk::Main::run(helloworld); 9} vWTt0
} ]n{2cPx5d
U5Y*xm<
PSRGlxdO
Java V1ug.Jv^
import java.awt.*; +"<f22cS1
import java.awt.event.*; <,m}TTq
:!%oQQO
public class HelloFrame extends Frame ]SQ_*$`
{ _7Z$"
HelloFrame(String title) Ct B>
s7
{ ;,viE~n
super(title); /fX]Yu
} rJAY7/u
public void paint(Graphics g) w:qwU\U>x
{ Qwb@3{
super.paint(g); hJ|z8Sy@1
java.awt.Insets ins = this.getInsets(); 4EOu)#
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); L9x,G!
} zIQ\_>
public static void main(String args []) 0Vg8o @
{ u",
[ulP
HelloFrame fr = new HelloFrame("Hello"); =/zQJzN
D,NjDIG8
fr.addWindowListener( U8moVj8w1
new WindowAdapter()
"dA"N$
{ +'[iyHBJ
public void windowClosing(WindowEvent e) 1f}Dza9
{ cM55
vVd
System.exit( 0 ); 5bgx;z9
} il:+O08_
} n.XT-X^
); o<x2,uT
fr.setResizable(true); M,l
Ib9
fr.setSize(500, 100); " I:j a7
fr.setVisible(true); \wTWhr0
} HbCM{A9
} `LNRl'Zm
<}|+2f233+
:
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