“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。 #J2856bzS
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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》。 qf24l&}
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以下是用不同语言写成的Hello World程序的几个例子: zKfb
Ada rQisk8%
with Ada.Text_Io; use Ada.Text_Io; '|Q=J)
procedure Hello is 0C3Yina9
*
begin e5`{*g$i).
Put_Line ("Hello, world!"); A.WJ#1i}E
end Hello; cO(|>&tJ
J=4S\0Z*
f+<-Jc
汇编语言 1RRvNZW
)}WG`
x86 CPU,DOS,TASM wy) Frg
MODEL SMALL ,8$;|#d
IDEAL S'E6#
STACK 100H P.;B
V",
fVf.u'.8
DATASEG )%ja6Vg
HW DB 'Hello, world!$' jgEiemh&
[FyE{NfiJ%
CODESEG w`#lLl
B
MOV AX, @data >-)i_C2
MOV DS, AX z)|56
F7'
MOV DX, OFFSET HW r T*:1
MOV AH, 09H i"w$D{N
INT 21H a |z{Bb
MOV AX, 4C00H $:
Qi9N
INT 21H KsUsj3J
END % j^=
1L l@
ocE
9^
mrsj
x86 CPU,GNU/Linux,NASM u{>5
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). v`Sllv5bV
;Enter this into "hello.asm" then type: x]a>Q),
;"nasm -f elf hello.asm" \n<N>j@3
;"ld hello.o -o hello" gvy%`SSW
;"./hello" I9>1WT<Yy
5[/*UtB
section .data ;data section declaration Y=}b/[s6;
msg db 'Hello World!',0AH t}'Oh}CG
len equ $-msg ;string length <7TpC@"/g
pOH_ CXw
section .text ;code section declaration kk!}mbA_}
global _start ;entry point (start of execution) 2^qY,dL
_start: mov edx,len ;string length u:m]-'
mov ecx,msg ;string start Q3oVl^q
mov ebx,1 ;file handle: stdout ?'h@!F%R'
mov eax,4 ;sys_write 1L &_3}
int 80h ;kernel system call :1.$7Wt
)*s.AFu]7x
mov ebx,0 ;return value vNJ!i\bX
mov eax,1 ;sys_exit hsfVKlw-
int 80h ;kernel system call 1RcaE!\p
|(S=G'AtU
CiPD+I
x86 CPU,Windows,MASM32 /ebYk-c
.386 Xv:<sX
.model flat,stdcall UTs0=:+,t
option casemap:none Mw+]*
;Include 文件定义 YO-O-NEP
include windows.inc 39m#
include user32.inc bR;H@Fdg?
includelib user32.lib #;^.&2Lt
include kernel32.inc PeE'#&wn
includelib kernel32.lib ~Dkje
;数据段 >Y{.)QS
.data I S!B$
szCaption db 'A MessageBox!',0 T+2?u.{I
szText db 'Hello,world!',0 =AR'Pad
;代码段 *5|\if\
.code #Va@4<4r
start: mH}AVje{
`
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK @+xkd(RfN
invoke ExitProcess,NULL WVwNjQ2PM
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 0c:CA>F
end start EW]gG@w]5r
J@yy2AZnO
Q) FL|
AWK [#2= w
BEGIN { print "Hello, world!" } Wigm`A=,r
P5aHLNit
gQ/zk3?k
BASIC k (
R
传统版BASIC(例如GWBASIC): -M[5K/[
Qiw Zk<rb
10 PRINT "Hello, world!" V?5_J%
20 END J-I7K!B
y4envjl0
或在提示符输入: r}vI#;&
C(?lp
?"Hello, world!":END `9$?g|rB
M{z+=c&w
现代版BASIC(例如Quick BASIC): *M KVm)Iv
{d7KJmN
Print "Hello, world!" ,L_p"A
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以下的语句在Quick BASIC中同样有效: P7@qvg
+F67g00T|
? "Hello,world!" OjZ+gl}
qe\j$Cjy
Wxp^*._q3I
BCPL ^. Pn)J
GET "LIBHDR" ]HCt%5
]A'e+RD4k
LET START () BE BJlF@F#
$(
NU_VUd2
WRITES ("Hello, world!*N") o*dhks[
$) |/r@z[t
];Z_S`JR
y)(@
Befunge (cA=~Bw[=
"!dlrow olleH">v S liF$}J
, y8,es$
^_@ kuUH2:L
][0HJG{{g
[!aHP?-
Brainfuck )ns;S
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< o.j;dsZ
+++++++++++++++.>.+++.------.--------.>+.>. (S(=W G
Vxk0oIk`
R?]>8o,
C *W i(%
#include <stdio.h> 3btciR!N]
lz # inC|
int main(void) !0zM@p
{ @zPWu}&m
printf("Hello, world!\n"); n287@Y4Ru
return 0; &f!!UZMt)
} ~[,E
i k
~%sDQt\S
OGae]O<
C++ ^(6.P)$
#include <iostream> T>LtN
Q0M8}
int main() -|ee=BV
{ `d8$OC
std::cout << "Hello, world!" << std::endl; tU?lfU[7
return 0; r5F#q
} y6G[-?"/Q
R4qS,2E
=8<SKY&\X
C++/CLI V:IoeQ]-
int main() E7j]"\~ i
{ =>BT]WK>
System::Console::WriteLine("Hello, world!"); |NM.-@1
} }*+ca>K
z{AfR2L
6:h!gY
C# (C Sharp) KL -8Aj~
class HelloWorldApp gE8>5_R|
{ vO"AJ`_
public static void Main() AoTL)',
{ O-: ~6A
System.Console.WriteLine("Hello, world!"); /S|Pq!4<
} f5`exfdHE
} s<^UAdLnl
)b5MP1H
a0.)zgWr
COBOL BeplS
IDENTIFICATION DIVISION. 1L^\TC
PROGRAM-ID. HELLO-WORLD. +n%WmRf6!
9BHl2<&V
ENVIRONMENT DIVISION. @3b0hi4
i;Gl-b\_h
DATA DIVISION. mEE/Olh W
jIuE1ve
PROCEDURE DIVISION. k deJB-
DISPLAY "Hello, world!". "$m3xO
STOP RUN. 7(wY4T
H# Vs3*VK
0R*!o\y
Common Lisp 1k
"*@Z<
(format t "Hello world!~%") ukhI'alS,
KqB(W,$
)8P<ZtEU
DOS批处理 Ee4oTU5Mb
@echo off od-N7lp#
echo "Hello, world!" ~sk 4v:-
];(w8l
[j:%O|h
Eiffel =SLJkw&w6
class HELLO_WORLD *y.KD4@{
q
\0>SG
creation KS%xo6k.
make Is%-r.i
feature u,/PJg-(!
make is Q%KS$nP9
local {AQ3y,sh
io:BASIC_IO 1uS
_]59=
do 4xg%OH
!!io _.\p^ HM
io.put_string("%N Hello, world!") NlWIb2,
end -- make Riu0;U( \
end -- class HELLO_WORLD V=1Y&y
^bS&[+9E
3<?(1kSo>>
Erlang ;Wb
W\,P'
-module(hello). {fk'g(E8([
-export([hello_world/0]). C2bN<K
E+[K?W5
hello_world() -> io:fwrite("Hello, World!\n"). L# (o(4g2
G9^!=
v@
p6I@o7f
Forth [
tmJ6^s
." Hello, world!" CR V"\t
.y[=0K:
QiB:K Pz[
Fortran Z\`uI+`
WRITE(*,10) 6(X(f;MEl
10 FORMAT('Hello, World!') 'KM@$2tK^q
STOP QBDi;Xzb+
END yg/.=M
9G 9!=J
qI KVu_
HTML }J"}poB:
<HTML> NcFHvK
<HEAD> ]6FpUF#<D
<TITLE> Hello World! </TITLE> bIwt#:v
</HEAD> P(qUx9
<BODY> LXfDXXF
<p>Hello World!</p> u9sffX5x[J
</BODY> xUzfBn
</HTML> -*+7-9A I
mWCY%o@
/ey}#SHm,
HQ9+ 8 w^i
H ;/
WtO2
o{nBtxZ"
62a{Ggs{
INTERCAL iv:[]o
PLEASE DO ,1 <- #13 B-'Xk{
DO ,1 SUB #1 <- #238 57rc|]C
DO ,1 SUB #2 <- #112 2;U(r:]
DO ,1 SUB #3 <- #112 yj"+!g
DO ,1 SUB #4 <- #0 8@Y]dzgjj
DO ,1 SUB #5 <- #64 jD'\\jAUdm
DO ,1 SUB #6 <- #238 *|ubH?71%Y
DO ,1 SUB #7 <- #26 I}$Y[Jve
DO ,1 SUB #8 <- #248 B0nkHm.Sj
DO ,1 SUB #9 <- #168 Ws.F=kS>h
DO ,1 SUB #10 <- #24 dk-Y!RfNx
DO ,1 SUB #11 <- #16 &F)P3=
DO ,1 SUB #12 <- #158 WXaLKiA*(
DO ,1 SUB #13 <- #52 ')+'m1N
PLEASE READ OUT ,1 B]0`b1t
PLEASE GIVE UP zc\e$MO
c9r, <TR9
3Sf<oYF
Java )>C,y`,
public class Hello FdzsWm
{ G-9]z[\#
public static void main(String[] args) l<! ?`V6}
{ 7WKb|
/#;
System.out.println("Hello, world!"); _}{C?611c
} .$L'Jt2X
} h@@2vs2
D3|y|Dr
d1vC-n
N
JSP {!Jw+LPv$$
<% ,o*x\jrGw
out.print("Hello, world!"); Z2j
M.[hq
%> [*]&U6\j
9<G-uF
&0+;E-_
MIXAL k7'B5zVd
TERM EQU 19 the MIX console device number ;| )&aTdH
ORIG 1000 start address nsuK{8}@
START OUT MSG(TERM) output data at address MSG M')f,5i&$
HLT halt execution rp{q.fy'U
MSG ALF "MIXAL" }&bO;o&>
ALF " HELL" Y Dq5%N`
ALF "O WOR" I?EtU/AD
ALF "LD " cxp>4[gH
END START end of the program <`+U B<K
/*B-y$WQk
edx-R-Dc-1
Nuva `og 3P:y
<..直接输出..> CcG{+-=H)
Hello, world! "+~La{POc
'K"V{
<..或者..> DUFfk6#X}
{OXKXRCa
<. =hjff/
X
// 不带换行 )C|[j@MD
? "Hello, world!" Fr`"XH
PsjSL8]
// 或者 T/X[q7O~~4
Q~MV0<{
// 带换行 x4r\cL1!
?? 'Hello, world!' [>U'P1@ql
.> pIXbr($
")q
LK-2e$1
OCaml G\@uj>Z
let main () = <]2X~+v
print_endline "Hello world!";; 96fbMP+7R
6F(;=iY8
)! Jo7SR
Pascal :*4b,P
program Hello; om@GH0o+
begin Z@4BTA
writeln('Hello, world!'); 'avzESe~'
end. ...|S]a
|:7O
IlJ!jq
Perl nYhI0q
#!/usr/local/bin/perl (&H-v'a}3
print "Hello, world!\n"; H$bu*o-Z
8E`A`z
outAZy=R;
PHP Q`j!$r
<?php b1>zGC^|
print("Hello, world!"); F%Oy4*4
?> yr8
b?m.x
]q~_
G6]W'Kk
Pike pN|BtrN{
#!/usr/local/bin/pike X,DG2HT
int main() 7jPPN
{ f*)8bZDD
write("Hello, world!\n"); >rJ9^rS
return 0; mwU|Hh)N]
} !6{; z/Hy
5 YjqN
%#kml{I
PL/I %Bn"/0,
Test: procedure options(main); (1Q G]1q
declare My_String char(20) varying initialize('Hello, world!'); Osz:23(p
put skip list(My_String); $o2 H#"
end Test; 6b`3AAGU"
X`
r~cc
.K%1{`.|
Prolog Wwo'pke
goal *i3\`;^=
write("hello,world!"). xvn@zi
*|n-Hr
!:"$1kh1("
Python pbc<326X"
#!/usr/local/bin/python T rK-XTev
print "Hello, world!" wyWe2d
jiw5>RNt
moz*=a
REXX `#J0@ -
say "Hello, world!" sa6/$
#2
Gy=GvV
7-S?\:J
Ruby %+gK5aVab
#!/usr/bin/ruby %QYW0lE
print "Hello, world!\n" 2E7vuFH4c
gkkT<hEV=
-|_#6-9
Scheme "]H_;:{f
(display "Hello, world!") xb8S)zO]Q
(newline) ]c/k%]o~
1j4tR#L
f0Wbc\L[
sed (需要至少一行输入) SlK6KnX
sed -ne '1s/.*/Hello, world!/p' m^?a /
*DBm"{q%&k
F{,<6/ayRz
Smalltalk r2!\Ts 5v
Transcript show: 'Hello, world!' X0\O3l*j
LKC^Y)6o
olLVT<
SNOBOL q%&JAX=
OUTPUT = "Hello, world!" 'tyblj C
END q)N]*~
~|CWy
LeP;HP|
SQL =Pj+^+UM
create table MESSAGE (TEXT char(15)); |-+ IF,j
insert into MESSAGE (TEXT) values ('Hello, world!'); 9pF@#A9p
select TEXT from MESSAGE; <?8aM7W7
drop table MESSAGE; z.d1>w
kz30! L
};/;L[,G
Tcl 4{zz-4=
#!/usr/local/bin/tcl NAg9EaWja{
puts "Hello, world!" FUTD/y]Lu
u([|^~H]
[T}Lq~
TScript *h([ai"1-
? "Hello, world!" 9Ub##5$[,
~9ZW~z'
_EEOBaZ
Turing O%m\
Q1
put "Hello, world!" "39\@Ow
AT{rg/oSf
>v?&&FhHK<
UNIX-style shell "O (N=|b
程序中的/bin/sh可改为您使用的shell sd
m4zV]&
),!1B%
#!/bin/sh H\vd0DD;
echo 'Hello, world!' [uLwr$N<%L
NP#6'eH\
Q%T[&A}3B
GUI #OMFv.
k.5(d.*(
Delphi I,8f{T!O@"
program HelloWorld; vw
uses w ag^Sk
Dialogs; MJ?fMR@
begin _-+xzdGvX
ShowMessage('Hello, World!'); ovXU +8
end. ; <NK
'((pW
{3LAK[C
Nuva [C-4*qOaa2
<. .91@T.
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) =tS#t+2S
.> V$?@
z>7
D\H;_k8
chC= $(5t
Visual Basic _uf,7R-
MsgBox "Hello, world!" DWwPid}
"
'或者 'W_u1l/
Print "Hello, world!" fHV%.25
Mil+> X0
3QF/{$65!
Visual FoxPro Ip_deP@
? "Hello, world!" G(;hJ'LT
?:AD&Dn
m+!T
$$W
X11 ASU.VY
用一个程序 7TU(~]Z
a\l?7Jr
xmessage 'Hello, world!' umo<9Y
cF V[k'F
用C++和gtkmm 2 [C^&iLX/F*
DQI
b57j
#include <iostream> Jk=_8Xvr`
#include <gtkmm/main.h> ^:cc3wt'3[
#include <gtkmm/button.h> nRHxbE}::
#include <gtkmm/window.h> VV+gPC
using namespace std; p6c&vEsNj
1DRih>+#
class HelloWorld : public Gtk::Window kMx^L;:n
{ @>Bgld&vl
public:
eQU~A9
HelloWorld(); SNOML7pd
virtual ~HelloWorld(); DJJd_
protected: MXa(Oi2Gg
Gtk::Button m_button; -]. a0
virtual void on_button_clicked(); Dbg,|UH
}; V'^E'[Dd{
/UG]hJ-wn
HelloWorld::HelloWorld() : m_button("Hello, world!") vrq5 +K&||
{ +l27y0>t
set_border_width(10); w!|jL
$5L
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); /g)(
add(m_button); +R2+?v6
m_button.show(); <N(r-
} >[0t@Tu,D
*8Kx y@
HelloWorld::~HelloWorld() {} vdaG?+_o
s9rKXY',:l
void HelloWorld::on_button_clicked() up!54}qy
{ -T=sY/O
cout << "Hello, world!" << endl; 91\Sb:>
} oJ.5! Kg
#ZyY(S1.
int main (int argc, char *argv[]) Zg&o][T
{ 6Z#$(oC
Gtk::Main kit(argc, argv); G0Y]-*1
HelloWorld helloworld; f\vMdY
Gtk::Main::run(helloworld); b*)F7{/Z
} 3EV?=R
9<Ks2W.N
~J![Nx/
Java qYP;`L}o#
import java.awt.*; J{U
171
import java.awt.event.*; ]o?r(1
+5x{|!Pn
public class HelloFrame extends Frame Y(&rlL(sPK
{ eq(1'?7]`G
HelloFrame(String title) uGpLh0
{ 8 RA
super(title); -2B3 xIZJ
} QV[#^1
public void paint(Graphics g) eb>jT:
{ Vji:,k=3\
super.paint(g); |)*9BN
java.awt.Insets ins = this.getInsets(); {,B.OM)J
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); -&E