“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。 )@tHS-Jf
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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》。 Cd6th
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以下是用不同语言写成的Hello World程序的几个例子: 8NNs_~+x}
Ada ;V f{3
with Ada.Text_Io; use Ada.Text_Io; 5vS[{;<&
procedure Hello is tU!Yg"4Q
begin fb[lL7
Put_Line ("Hello, world!"); Z rgv*
end Hello; u2fp~.'P
W|sU[dxZ
>xF&>SDC
汇编语言 qq?o^_^4
aN,?a@B
x86 CPU,DOS,TASM `]l|YQz\
MODEL SMALL /m^G 99N
IDEAL zyP/'X_~:
STACK 100H zR/mz) 6_
U1rr=h
g
DATASEG )>"Ky
HW DB 'Hello, world!$' JnqP`kYbTE
'V <ZmJ2
CODESEG )1GJ^h$l
MOV AX, @data {utnbtmu
MOV DS, AX XJwgh y?(
MOV DX, OFFSET HW t56PzT'M
MOV AH, 09H uz20pun4B
INT 21H Z0XQ|gkH
MOV AX, 4C00H Yn?Xo_Y
INT 21H B
T
{cTj0W
END 7xWJw
?=-/5A4K
![]6| G&
x86 CPU,GNU/Linux,NASM C}L2'l,
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). yOP$~L#TWs
;Enter this into "hello.asm" then type: Znh;#%n|
;"nasm -f elf hello.asm" M[-/ &;`f@
;"ld hello.o -o hello" }6{00er
;"./hello" nT}i&t!q8@
J'WOqAnPZ
section .data ;data section declaration 9.#")%_p
msg db 'Hello World!',0AH ;l < amB
len equ $-msg ;string length g1l:k1\Ht
G_ ~qk/7mF
section .text ;code section declaration a6It1%a+
global _start ;entry point (start of execution) {FILt3f;
_start: mov edx,len ;string length BXz g33
mov ecx,msg ;string start xsS;<uCD
mov ebx,1 ;file handle: stdout %* gg6Q
mov eax,4 ;sys_write Bw[#,_
int 80h ;kernel system call "s t+2#{
{CTJX2&
mov ebx,0 ;return value V<PH5'^$j
mov eax,1 ;sys_exit h^14/L=|
int 80h ;kernel system call 'bg'^PN>z
23Q 88z
45jImCm
x86 CPU,Windows,MASM32 $_\x}`c~.
.386 #60gjHYaV
.model flat,stdcall hx:^xW@r4P
option casemap:none hC]:+.Q+
;Include 文件定义 %):pfM;b
include windows.inc G}}Lp~
include user32.inc V<ilv<
includelib user32.lib 3RFU
include kernel32.inc $uRi/%Q9
includelib kernel32.lib -<" ;|v4
;数据段 ;U y}(
.data #v6<9>%
szCaption db 'A MessageBox!',0
7$IR^
szText db 'Hello,world!',0 '0I>
;代码段 oMoco tQ;$
.code h1f 05
start: J5xZLv
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK VAqZ`y
invoke ExitProcess,NULL Q=#FvsF#z3
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> g!cW`B'
end start nm%7 e!{m
KYz@H#M
QDKY7"H
AWK Jq8v69fyQ
BEGIN { print "Hello, world!" } ;r.#|b
[N"=rY4G
mDuS-2G=D
BASIC 6k{gI.SG
传统版BASIC(例如GWBASIC): f=8{cK0j
vRDs~'f
10 PRINT "Hello, world!" =&DuQvN,
20 END PM&NY8|Zy
TS=U%)Ik
或在提示符输入: \pP1k.~UnC
nAX/u[
?"Hello, world!":END &(|Ot`el]v
4C*0MV
现代版BASIC(例如Quick BASIC): K=pG,[ChA
b8Hzl!zO
Print "Hello, world!" g*w}m>O
'rVB2
`z-
以下的语句在Quick BASIC中同样有效: x<.(fRv
#6pJw?[
? "Hello,world!" k$kxw_N5d
5Y@Hb!5D
yDj'')LOQg
BCPL 5s>>]
.%
GET "LIBHDR" b%0@nu4
Rv.IHSQUo
LET START () BE xP27j_*m>
$( u7 <VD
WRITES ("Hello, world!*N") p=|S%
$) u('`.dwkc
(.5Ft^3W
w?Cho</Xu
Befunge cxx8I
"!dlrow olleH">v B$S@xD $
, 46B'Ec
^_@ ]K%d
A-rj: k!
!\'HKk~V
Brainfuck CdtCxy5
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< Fzn!
+++++++++++++++.>.+++.------.--------.>+.>. lwjA07i
H. o3d/8:
~(=5`9
C '?LqVzZI
#include <stdio.h> _94R8?\_V7
90ov[|MkM
int main(void) yQ&C]{>TS
{ _x$\E
printf("Hello, world!\n"); R 0G!5>1i
return 0; [jGE{<Je
} b'vIX<
g
-MORd{GF
Xo6zeLHO
C++ V?-2FK]
#include <iostream> NceK>::56
Cm0K-~
U
int main() k ,ezB+
{ Digx#'#jf
std::cout << "Hello, world!" << std::endl; p}Bh
return 0; kovJ9
} p[;@9!t
*Xn6yL9
#T8PgmR
C++/CLI r[#*..Y
int main() 6=*n$l#}
{ Dv4 H^
System::Console::WriteLine("Hello, world!"); L D%SLJ:
} ke)<E98DC
`1#Z9&bO
AXv-%k};
C# (C Sharp) w8#ji 1gX
class HelloWorldApp *@WBaN+
{ R'oGsaPB2
public static void Main() j9BcoEl:;
{ 0%yPuY>
System.Console.WriteLine("Hello, world!"); oq,*@5xV2
} v9Lf|FXo&
} V}FH5z
|
Fu[GQ6{f
/PG%Y]l0b
COBOL 29&F_
IDENTIFICATION DIVISION. +=*ND<$n/E
PROGRAM-ID. HELLO-WORLD. M[e^Z}w.V
gb}ov**
ENVIRONMENT DIVISION. *9`k$'
bzZ7L-yD
DATA DIVISION. DW)X3A(^
MFipXE!
PROCEDURE DIVISION. H)Z$j&S{
DISPLAY "Hello, world!". f{|n/j;n=C
STOP RUN. g+xcKfN{
7lr;S(C
J~N!. i
Common Lisp r]S"i$
(format t "Hello world!~%") %xC}#RDf
H<qz
rO
qR4-~p8
DOS批处理 lEw!H^O4
@echo off &-Q_%eM^
echo "Hello, world!" LDDt=HEY4
E:P_CDSd]
D$`$4mX@hP
Eiffel ?O9|
class HELLO_WORLD Z/OERO
g c<Y?a-
creation l?HC-_Pbh
make `mquGk|)
feature /5?tXH"
make is :GM3n$
local 6-\M }xq?
io:BASIC_IO ?~oc4J*>(
do v5W-f0Jo
!!io {$C"yksr
io.put_string("%N Hello, world!") 9CZEP0i7
end -- make mzf^`/NO
end -- class HELLO_WORLD [] R8VC>Ah
8(H!iKHe
NHhKEx0Gtu
Erlang f;bfR&v
-module(hello). Mp@dts/|
-export([hello_world/0]). Yr>7c1FZi
+,eF(VS!
hello_world() -> io:fwrite("Hello, World!\n"). ?%b#FXA
|
g,f
AVM
Forth )t$-/8
." Hello, world!" CR B06W(y,3Q>
1:q`KkJx
nDz.61$[
Fortran ,
ksr%gR+
WRITE(*,10) W'v
o?
10 FORMAT('Hello, World!') RVr5^l;"
STOP :79u2wSh
END 7<LCX{Uw
K>#QC
tl=e!
HTML D+Z2y1
<HTML> t*Z4&Sy^
<HEAD> .F0Q<s9
<TITLE> Hello World! </TITLE> h<g2aL21?F
</HEAD> VD+v\X_
<BODY> |[$TT$Fb
<p>Hello World!</p> OS=~<ba
</BODY> +]e) :J
</HTML> caL\ d
$]J<^{v
s=<65
HQ9+ a@C}0IP)
H 0*KL*Gn
QH k jxj
Yd<9Y\W%?
INTERCAL ~8)l/I=`);
PLEASE DO ,1 <- #13 I-W,C&J>
DO ,1 SUB #1 <- #238 D*g
K, `
DO ,1 SUB #2 <- #112 w$jSlgUHy)
DO ,1 SUB #3 <- #112 k:z)Sw
DO ,1 SUB #4 <- #0 "XU)(<p
DO ,1 SUB #5 <- #64 cEGR?4z
DO ,1 SUB #6 <- #238 XM`&/)
DO ,1 SUB #7 <- #26 B3E}fQm )
DO ,1 SUB #8 <- #248 zOYG`:/'
DO ,1 SUB #9 <- #168 $ou/ Fn
DO ,1 SUB #10 <- #24 9r 5(
DO ,1 SUB #11 <- #16 $NBQv6#:
DO ,1 SUB #12 <- #158 !_-Uwg
DO ,1 SUB #13 <- #52 ##s:Ww
PLEASE READ OUT ,1 *1*i5c
PLEASE GIVE UP sl)]yCD|5
1 ;Uc-<
(XV+aQ \A
Java qU ,{jD$
public class Hello p & i+i
{ MSe>1L2=
public static void main(String[] args) AH^ud*3F
{ IB^vEY!`6_
System.out.println("Hello, world!"); jM>;l6l
} .qCI!%fg
} "71Y{WQ
7s0pH+
"7w=LhzV[$
JSP 'T]Ok\
<% %<MI]D
out.print("Hello, world!"); HE+D]7^
%> PVrNS7 Rk/
q,=YKw)*
/mK]O7O7
MIXAL )!'7!" $
TERM EQU 19 the MIX console device number 8(* ze+8
ORIG 1000 start address eyos6Qi
START OUT MSG(TERM) output data at address MSG 8o466m6/
HLT halt execution %Ybr5 $_
MSG ALF "MIXAL" rE?B9BF3O
ALF " HELL" r>t|.=!
ALF "O WOR" :#=BwdC
ALF "LD " m[hHaX
END START end of the program I:YE6${k!
-9R.mG
e+y%M
Nuva 5IbCE.>iU
<..直接输出..> wif1|!aL
Hello, world! Sre:l'.
Li\b,_C
<..或者..> jOL=vG
lN_b&92
<. gj82qy\:
// 不带换行 -'Z-8
? "Hello, world!" J5}?<Dd:
Z*.rv t
// 或者 Q>TNzh
jV#1d8qm
// 带换行 WP PDvB
?? 'Hello, world!' /`7G 7pQ+
.> 0"iQHi
1vCVTuRF
Z.N9e
OCaml k-sBf Jy\
let main () = CH $*=3M
print_endline "Hello world!";; 0bjZwC4J
q'%!qa+
a4",BDx
Pascal G'Uq595'-
program Hello; wYh]3
begin o)H|
#9h5
writeln('Hello, world!'); w}
r mYQ
end. J,k.*t:
#,OiZQJC
;ih;8
Perl ~$YasFEz
#!/usr/local/bin/perl 5Z13s
print "Hello, world!\n"; H`7T;`Yb
^j<2s"S
H:o=gP60]
PHP /km0[M
<?php LtK,_j
print("Hello, world!"); 7+rroCr"
?> $^W|@et{
]
>skl-f
+l<;?yk:;
Pike |C7=$DgwY
#!/usr/local/bin/pike %
xBQX
int main() }1NNXxQ
{ ;s5JYR
write("Hello, world!\n"); \3O1o#=(
return 0; ,N8SP
'R
} N^jr
9dp1NjOtAc
IC-W[~
PL/I Jv~^hN2
Test: procedure options(main); 8[oZ>7LMzC
declare My_String char(20) varying initialize('Hello, world!'); *+ +}ll6
put skip list(My_String); 8>(/:u_x
end Test; `bZgw
8aW<lu
SI7r`'7A'
Prolog l$C
Y
gm
goal ne=CN!=
write("hello,world!"). =an0PN
}zrapL"9X
ubl)$jZ:Q
Python \Z-Fu=8J8^
#!/usr/local/bin/python m5cRHo<9Y
print "Hello, world!" LVJn2t^
\
F)}brPc
P3TM5
REXX <BK?@Xy
say "Hello, world!"
g hW
eqqnR.0
ME*A6/h
Ruby kk}_AZ0eK
#!/usr/bin/ruby ~g*5."-i
print "Hello, world!\n" ;G*)7fi
]qiX"<s>~C
F:LrQu
Scheme [$Jsel<T=
(display "Hello, world!") euET)Ccq
(newline) c;88Wb<|W
C9eisUM
V2$M`|E
sed (需要至少一行输入) '|G8yojz
sed -ne '1s/.*/Hello, world!/p' [x
-<O:r=P
{N@Pk[!
G}@a]EGm
Smalltalk Xi!e=5&Pa
Transcript show: 'Hello, world!' ~Sx\>wBlc
ix5<h }
]6,D9^{;
SNOBOL *C.Kdf3w
OUTPUT = "Hello, world!" gq~"Z[T
END 5i%\m
.d+zF,02Z
SA?1*dw)
SQL =tl~@~pqI
create table MESSAGE (TEXT char(15)); Pxgul7
insert into MESSAGE (TEXT) values ('Hello, world!'); y8dOx=c
select TEXT from MESSAGE; wqgKs=y
drop table MESSAGE; hbs /S
hd)WdGJp
otQ
G6
Tcl P[jh^!<j
#!/usr/local/bin/tcl
=)J<R;
puts "Hello, world!" q&^H"
fF
~w}=Oby'y
$ SZIJe"K
TScript <Ik5S1<h$H
? "Hello, world!" ulfs Z:
#p-\Y7f
m",G;VN
Turing N[N4!k )!$
put "Hello, world!" ."`||@|
:0Fc E,1
h7AO5"6
UNIX-style shell k;r[m,$
程序中的/bin/sh可改为您使用的shell u/FC\xJc
(iht
LFp
#!/bin/sh ..=lM:13|
echo 'Hello, world!' E CPSE{
,Qj\_vr@
8#HQ05q>
GUI 0f9U:)1z
<}F(G-kV6
Delphi !p_l(@f
program HelloWorld; }sp?@C,Z
uses AnpO?+\HF
Dialogs; ,_K:DSiB
begin Uh'W d_?
ShowMessage('Hello, World!'); >2NsBS(
end. & d* bQv$
}d@;]cps
S`vw<u4t
Nuva aj-:JTf
<. .GWN~iR(
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) Hio+k^
.> M{p9b E[j
S(lqj6aa}
&LQfs4}a,
Visual Basic ,2P/[ :
MsgBox "Hello, world!" ^Zlbs
goZ
'或者 _B\87e
Print "Hello, world!" U\>k>|Jr{
".?y!VY
\U'*B}Sz
Visual FoxPro u(JuU/U
? "Hello, world!" o%K1!'
pE$*[IvQ'
y8]vl;88yY
X11 CS0q#?
用一个程序 jRxzZt4
jJ?G7Q5l
xmessage 'Hello, world!' }MtORqK
M`xI N~
用C++和gtkmm 2 4thPR}DH}
J~ wu*x
#include <iostream> ozA%u,\7k
#include <gtkmm/main.h> &09G9G snQ
#include <gtkmm/button.h> 7>-99o^W
#include <gtkmm/window.h> Gi&/`vm
using namespace std; (V"7H
1"T&B0G3l
class HelloWorld : public Gtk::Window B0^:nYko
{ w<Iq:3
public: o@YEd d
HelloWorld(); r$%,k*X^
k
virtual ~HelloWorld(); mOFp!(
protected: 2t7=GA+j
Gtk::Button m_button; k0xm-
virtual void on_button_clicked(); @"m+9ZY
}; 9xL`i-7]
2-^['R
HelloWorld::HelloWorld() : m_button("Hello, world!") w7~&Xxa/
{ _HkQv6fXpE
set_border_width(10); F0'8n6zj
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); ?l`|j*
add(m_button); \*c=bz&l
m_button.show(); s*vtCdrE.
} .C1g Dry]
pWKI^S
HelloWorld::~HelloWorld() {} #?~G\Ux0/
,Uy~O(Ft
void HelloWorld::on_button_clicked() Po.izE!C
{ P+,YWp
cout << "Hello, world!" << endl; oM,UQ!x<
} p&HkR^.S
c32"$g
int main (int argc, char *argv[]) A \Z _br
{ G ahY+$L,
Gtk::Main kit(argc, argv); 6lwWFR+k
HelloWorld helloworld; VGOdJ|2]Wr
Gtk::Main::run(helloworld); 8,:lw3x1
} Gn<e&|4>i}
pzU:AUW
oB+@05m8
Java ]Yf8
import java.awt.*; mQ\oR|
import java.awt.event.*; TaZlfe5z
r6kQMFA
public class HelloFrame extends Frame N
Q}5'
{ +sXnC\
HelloFrame(String title) 07Oagq(
{ ]jV1/vJ-!
super(title); u<HJFGLzI
} [LS s|f
public void paint(Graphics g) qtp-w\#S$
{ C(}Kfi@6N
super.paint(g); n'@XgUI,
java.awt.Insets ins = this.getInsets(); Ky{C;7X
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); ~P9^4
} x8&~
public static void main(String args []) ~bfjP2
g
{ 1["IT.,f.
HelloFrame fr = new HelloFrame("Hello"); [O6JVXO>
"mcuF]7F
fr.addWindowListener( _61tE
new WindowAdapter() [V;Q#r&+
{ I5g!c|#y
public void windowClosing(WindowEvent e) &I/C^/F&
{ Tg v]30F)
System.exit( 0 ); wA6<BujD
} jDW$}^
6
} #F+b^WTR
); !3o]mBH8
fr.setResizable(true); Y+3r{OI
fr.setSize(500, 100); wodff_l
fr.setVisible(true); 9RY}m7
} `_M&zN
} kk
aS&r>
J(`(PYo\i
QC+BEN$
Java Applet 1VG7[#Zy
Java Applet用于HTML文件。 do@BJWo
@FuX^Q.[
HTML代码: _?9|,
J8hH#7WMS
<HTML> 1@Rl^ey
<HEAD> =z2g}X
<TITLE>Hello World</TITLE> ]ov"&,J
</HEAD> RaB%N$.9s
<BODY> n^rzl6dy
$p.0[A(N
HelloWorld Program says: Fh ^Ax3P(
q7zHT=@$
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> PL*kjrLu7
</APPLET> vrXNa8,L
d~O)mJ
J
</BODY> m[&