“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。 jQxPOl$-
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将Hello World程序作为第一个学写的程序,现在已经成为一种传统。该程序最早出现在由Brian Kernighan和Dennis Ritchie写的计算机程序设计教程《C语言程序设计》。 le^_6|ek
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以下是用不同语言写成的Hello World程序的几个例子: aEEz4,x_
Ada uVq5fT`B
with Ada.Text_Io; use Ada.Text_Io; V3 _b!
procedure Hello is Q3Z%a|3W
begin 9oje`Ay
Put_Line ("Hello, world!"); #7~tL23}]
end Hello; Cwsoz
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汇编语言 _<%\h?W$
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x86 CPU,DOS,TASM RQo$iISwy
MODEL SMALL KcmDF4C2
IDEAL }c35FM,
STACK 100H cVB|sYdf
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DATASEG 3b|7[7}&
HW DB 'Hello, world!$' j(Fa=pi
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e
CODESEG )RA\kZ "
MOV AX, @data 2Ft8dfdm`
MOV DS, AX k(-Z@
MOV DX, OFFSET HW CQBT::
MOV AH, 09H C7b
5%a!
INT 21H 95$pG/o
MOV AX, 4C00H @zr8%8n
INT 21H o<D3Y95b
END MK-a$~<
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x86 CPU,GNU/Linux,NASM UzU-eyA
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). q,;".3VQ
;Enter this into "hello.asm" then type: 5:*5j@/S
;"nasm -f elf hello.asm" :cXIO
;"ld hello.o -o hello" $ DDSN
;"./hello" } g3HoFC
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section .data ;data section declaration d7W%zg\T
msg db 'Hello World!',0AH FX|0R#4vm
len equ $-msg ;string length J0?$v6S
/'Quu)~
section .text ;code section declaration *=$[}!YG
global _start ;entry point (start of execution) CdBthOPX)
_start: mov edx,len ;string length Wj&<"Z6'm(
mov ecx,msg ;string start k_*XJ <S!Y
mov ebx,1 ;file handle: stdout _&; ZmNNhc
mov eax,4 ;sys_write b?Cmc
int 80h ;kernel system call 2!{_/@I\Y
'GV&]
mov ebx,0 ;return value >vD['XN,
mov eax,1 ;sys_exit "xD}6(NL(r
int 80h ;kernel system call DL'd&;6
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x86 CPU,Windows,MASM32 9,S,NvSq
.386 BGB,Gb
.model flat,stdcall lSn5=^]q
option casemap:none ~a'nHy1
;Include 文件定义 3E<aiGU
include windows.inc y\F`B0#$
include user32.inc 51o@b
includelib user32.lib \g~ws9'~
include kernel32.inc _L*f8e8
includelib kernel32.lib #joF{M{
;数据段 2UU2Vm_6
.data l9_m>X~
szCaption db 'A MessageBox!',0 NniX/fk
szText db 'Hello,world!',0 a);O3N/*I
;代码段 { A:LAAf[6
.code H/^~<U#p
start: _, \y2&KT
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK f*{M3"$E
invoke ExitProcess,NULL <)_:NRjBF&
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> X!U]`Qh
end start _wm~}_Q
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AWK "NxOOLL
BEGIN { print "Hello, world!" } J*}VV9H
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BASIC ?@_v,,|
传统版BASIC(例如GWBASIC): rumAo'T/%
- waX#UT=
10 PRINT "Hello, world!" tW:W&|q
20 END xh{mca>?G
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或在提示符输入: N1YgYL
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?"Hello, world!":END Vn)%C_-]A
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现代版BASIC(例如Quick BASIC): x
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Print "Hello, world!" &@=u+)^-{
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以下的语句在Quick BASIC中同样有效: h^['rmd
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? "Hello,world!" `!zQ
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vAi"$e
BCPL NV:>a
GET "LIBHDR" Mx^y>\X)v
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LET START () BE kclp}
$( XlRw Z/Wc
WRITES ("Hello, world!*N") P\.WXe#j
$) .H
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Befunge e%pu.q\gK
"!dlrow olleH">v %'$f ?y
, Z/xV\Ggx
^_@ MO[c0n%
/^d. &@*
y= 2=DU
Brainfuck 5RW@_%C
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< s5Pq$<
+++++++++++++++.>.+++.------.--------.>+.>. b([:,T7
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v,n);
C S<V-ZV&_:U
#include <stdio.h> R_maNfS]Z
<[bQo&B2 E
int main(void) JK[T]|G
{ YFG-U-t3
printf("Hello, world!\n"); T]^?l
return 0; N"S3N)wgd
} dFzYOG1
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C++ >Q&CgGpW$
#include <iostream> b~1iPaIh
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int main() I[@ts!YD
{ `q^(SM
std::cout << "Hello, world!" << std::endl; %yeu"
return 0; { AFf:[G
} Ocyb c%
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C++/CLI dQ,Q+ON>
int main() ebzzzmwo
{ 1y7y0V
System::Console::WriteLine("Hello, world!"); Qy/uB$q{A
} #kj~G]QA
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U4=]#=R~o
C# (C Sharp) ]7*kWc2
class HelloWorldApp ;3mL^
{ >8%M*-=p
public static void Main() Ha?G=X
{ lHcA j{6
System.Console.WriteLine("Hello, world!"); C(}^fJ6r
} WXLK89ev\
} E!uJ6\
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COBOL 7aV$YuL)X~
IDENTIFICATION DIVISION. $_wo6/J5+D
PROGRAM-ID. HELLO-WORLD. {aoMJJq
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ENVIRONMENT DIVISION. k; ;viT
grc:Y
DATA DIVISION. >}CEN
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PROCEDURE DIVISION. GKCM|Y
DISPLAY "Hello, world!". @$oZ|ZkZ
STOP RUN. 0iF -}o
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Common Lisp )Z("O[
(format t "Hello world!~%") p=H3Q?HJ}
s"q=2i
d @m\f
DOS批处理 Gy9
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@echo off a#$N% =j
echo "Hello, world!" qIz}$%!A
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g
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Eiffel CG.,/]_
class HELLO_WORLD &~'S)Nun
i *'Z3Z)
creation ;?zF6zvQ
make 07FT)QTE
feature fCg@FHS&^
make is ';Nu&D#Ph
local St+ "ih%
io:BASIC_IO :G#KB'
do ?,>5[Ha^?
!!io S@Iw;V
io.put_string("%N Hello, world!") oPsK:GC`U
end -- make NCn`}QP
end -- class HELLO_WORLD "H$@b`)
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Erlang #jm@N7OZ
-module(hello). =DC3a3&%
-export([hello_world/0]). ~;8I5Sge
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hello_world() -> io:fwrite("Hello, World!\n"). FfG%C>E6~
V9Hl1\j^
.;g}%C
Forth b)`pZiQP
." Hello, world!" CR SB/3jH
t!:)L+$3
T)~!mifX
Fortran -=a[J;'q
WRITE(*,10) #|?8~c;RWG
10 FORMAT('Hello, World!') (0R2T"/
STOP Im+7<3Z
END Yz\
N&0"
X8Fzs!L`
BPewc9RxV
HTML P$OUi!"
<HTML> v%nP*i9
<HEAD> $''UlWK
<TITLE> Hello World! </TITLE> 1x{kl01m%
</HEAD> G|*G9nQ
<BODY> XXm'6xD-
<p>Hello World!</p> bcn7,ht
</BODY> #A )Ab%r8"
</HTML> 7]Rk+q2:
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VE$t%QT
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(v^Z BM_
"mA1H]r3
INTERCAL +>}o;`hPe
PLEASE DO ,1 <- #13 Oyan9~
DO ,1 SUB #1 <- #238 |IN[uQ
DO ,1 SUB #2 <- #112 d@ (vg
DO ,1 SUB #3 <- #112 QD4:W"i
DO ,1 SUB #4 <- #0 o0mJy'
DO ,1 SUB #5 <- #64 yLqF ,pvO
DO ,1 SUB #6 <- #238 b
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DO ,1 SUB #7 <- #26 R5kH0{zM
DO ,1 SUB #8 <- #248 2M&$Wuu.q
DO ,1 SUB #9 <- #168 Y{+3}drJE
DO ,1 SUB #10 <- #24 9`Vc
DO ,1 SUB #11 <- #16 jT-<IJh!o
DO ,1 SUB #12 <- #158 V{ |[oIp
DO ,1 SUB #13 <- #52 Y[um|M315
PLEASE READ OUT ,1 fEwifSp.
PLEASE GIVE UP RG}}Oh="v
,H{={aln
d}+W"j;
Java QNpuTZn#Q
public class Hello J|5Ay1eF-
{ dB7ZT0L\
public static void main(String[] args) Z0\Iyc G
{ t^U^Tr
System.out.println("Hello, world!"); AY88h$a
} R6P\T\~E
} QC7k~I8
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7\k%
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JSP oKa>.e7.
<% }#/lN
out.print("Hello, world!");
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%> F#|Z# Mu
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hB>^'6h+
MIXAL YtYy zX5u7
TERM EQU 19 the MIX console device number P=gJAE5
ORIG 1000 start address b-%l-u
START OUT MSG(TERM) output data at address MSG f^e&hyC
HLT halt execution 8,*3zVk-
MSG ALF "MIXAL" ;;Tq$#vd
ALF " HELL" -?fR|[\[U
ALF "O WOR" `D2Mss$!
ALF "LD " ArXl=s';s4
END START end of the program t9` Ed>a
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Nuva vD26;S.y[a
<..直接输出..> x{hn2]6+eB
Hello, world! l1r_b68
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<..或者..> Mudrg[@`
JA6";fl;
<. -;Uj|^
// 不带换行 eaAPKx
? "Hello, world!" _#pnjo
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// 或者 <\aU"_D
;?~
9hN!
// 带换行 5[R?iSGL1
?? 'Hello, world!' l$M +.GB<
.> u)~s4tP4
ab4LTF|
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OCaml 6fGK(r
let main () = .NnGVxc5*
print_endline "Hello world!";; 1;&T^Gdj
nk/vGa4
D=&K&6rr
Pascal ?,XC=}
program Hello; S#2[%o
begin 2w4MJ,Uw
writeln('Hello, world!'); Dbz]{_Y;
end. 0roCP=;
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Perl !^v\^Fc
#!/usr/local/bin/perl LNiS`o\
print "Hello, world!\n"; a.,_4;'UE1
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PHP `{}@@]
<?php xZ+]QDKC
print("Hello, world!"); @O/,a7Tt
?> =bL{i&&
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"&-C$J5
Id
Pike uvv.WbZ
#!/usr/local/bin/pike (.Xr#;\(
int main() t)r1"oA
{ PAoX$q
write("Hello, world!\n"); o,
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return 0; KY+]RxX
} <'2u
a
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x+:zq<0|
PL/I Kv?;cu!
Test: procedure options(main); #U@| J}a
declare My_String char(20) varying initialize('Hello, world!'); asz?p\k:bC
put skip list(My_String); }\Z5{OA
end Test; aYVDp{_
eq hAus?)
p(?3
V
Prolog ps+:</;Z
goal @q)E=G1<o0
write("hello,world!"). JIV8q HC
XKSX#cia
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Python xR}of"
#!/usr/local/bin/python 'vlrc[|/
print "Hello, world!" tcOnM w
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REXX 6LM9e0oxy
say "Hello, world!" 9v~5qv;
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oMc1:=EG
Ruby |-61(X.
#!/usr/bin/ruby %nQmFIt
print "Hello, world!\n" %3G;r\|r]
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sX'nn
Scheme *#h;c1aP
(display "Hello, world!") ]^'ZiyJX
(newline) Q52bh'cuU
C #aFc01B
SRWg[H
sed (需要至少一行输入) o4~kX
sed -ne '1s/.*/Hello, world!/p' or.\)(m#(
B_&^ER5j
rzT{-DZB[4
Smalltalk OX3Xy7
Transcript show: 'Hello, world!' %?dE{ir
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,
)X%oXc&C|
SNOBOL 0jTMZ<&zZ
OUTPUT = "Hello, world!" j_c+.iET
END +WLD
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SQL ^c'f<<z|7r
create table MESSAGE (TEXT char(15)); $W, zO|-
insert into MESSAGE (TEXT) values ('Hello, world!'); -'ZxN'*%
select TEXT from MESSAGE; Z =
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drop table MESSAGE; f4
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PbN3;c3
Tcl {AgBwBCE
#!/usr/local/bin/tcl ^A#x<J+
puts "Hello, world!" !gJzg*{u@
T#r=<YH[C
{(0Id !
TScript \(bj(any
? "Hello, world!" LG6I_[
]}~4J.Yn
EL +,jrU~
Turing |^!Vo&T
put "Hello, world!" /.@x
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. s-5N\
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UNIX-style shell e5L1er;6
程序中的/bin/sh可改为您使用的shell -XW8 LaQB
2@*<9-9
#!/bin/sh Tzf$*Uje3
echo 'Hello, world!' 8_X.c
xT=ySa$|>
TrQm]9 @
GUI ^'YHJEK
rkIMM,
Delphi |0]YA
program HelloWorld; 1tyNRoET
uses $eMK{:$O
Dialogs; eI?HwP{m
begin K1-+A2snhV
ShowMessage('Hello, World!'); #G~wE*VR$
end. k.Gl4
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wt\m+!u`
Nuva UOJ*a1BM
<. !mae^A1
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) B,MQ.|s[
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Visual Basic W1`Dx(g
MsgBox "Hello, world!" B'#4;R!8P=
'或者 iLQSa7
Print "Hello, world!" )*W=GY*
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Visual FoxPro *?p
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? "Hello, world!" Cy6%S).c
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bw020@O*
X11 7?,7TR2Ny
用一个程序 (H2ylMpQt
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xmessage 'Hello, world!' EoKo
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用C++和gtkmm 2 1]Lhk?4t
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#include <iostream> $8Ig&k|~8
#include <gtkmm/main.h> d~sJ=)
#include <gtkmm/button.h> M6&~LI.We=
#include <gtkmm/window.h> Yfe'#MKfL
using namespace std; P*7S3Td
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class HelloWorld : public Gtk::Window X0!Bs-WFp
{ Enu!u~1]F
public: F$[)Bd /"
HelloWorld(); v`
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virtual ~HelloWorld(); W oWBs)E
protected: HmW=t}!
Gtk::Button m_button; <c(&T<$
virtual void on_button_clicked(); _TrZ'iL}T
}; N6WPTUQ1mF
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HelloWorld::HelloWorld() : m_button("Hello, world!") %pH)paRAP
{ lS#7xh
set_border_width(10); X:U=MWc>
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); p1kl LX
add(m_button); 3Fgz)*Gu]
m_button.show(); )U]:9)
} qg|Ox*_od"
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HelloWorld::~HelloWorld() {} 4`$5
_}
j!
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void HelloWorld::on_button_clicked() k{_1r;
{ 0u>yT?jP
cout << "Hello, world!" << endl; KM 5jl9Vv
} 28ja-1dB
~m!#FTc*
int main (int argc, char *argv[]) :MK:TJV
{ hN[X 1*
Gtk::Main kit(argc, argv); t?KUK>>w
HelloWorld helloworld; ::v;)VdX+*
Gtk::Main::run(helloworld); Z>X9J(=
} uW )
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Java zaH
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import java.awt.*; :,jPNuOA
import java.awt.event.*; 9U&~(;
=[ s8q2V
public class HelloFrame extends Frame ix:2Z-
{ 33*^($bE&
HelloFrame(String title) XMomFW_@
{ KuIkul9^%
super(title); 93 [rL+l.Y
} h>~jQ&\M
public void paint(Graphics g) Fs?( UM
{ nT_*EC<.
super.paint(g); EK^JLvyT
java.awt.Insets ins = this.getInsets(); s;anP0-O
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); O5ucI$s
} u$ap H{
public static void main(String args []) %B[YtWqm`/
{ Tc9&mKVE%(
HelloFrame fr = new HelloFrame("Hello"); ,?Ok[G!cm
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fr.addWindowListener( j[_t6Z
new WindowAdapter() +d.u##$
{ _L8Mpx*E
public void windowClosing(WindowEvent e) C(f$!~M4b
{ >9 q]>fJ
System.exit( 0 ); G!nl'5|y
} mp!YNI
} 3Wjq >\
); km9Gwg/zT
fr.setResizable(true); SRP5P,- y
fr.setSize(500, 100); nWKO8C>
fr.setVisible(true); "(Mvl1^BT
} >s;oOo+5
} izXbp02
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k&WUv0
Java Applet (irk$d %
Java Applet用于HTML文件。 Dq{:R
~&t!$
HTML代码: DxE(9j
&/ \O2Aw8
<HTML> h1n*WQ-
<HEAD> k}- "0>
<TITLE>Hello World</TITLE> mfj4`3:NV
</HEAD> \El|U#$u'
<BODY> YI L'YNH
N<p5p0
HelloWorld Program says: AmP#'U5
ue,#,3{m
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> <l*agH-.3
</APPLET> rd XCWK$E
n;e."^5
</BODY> ;7;zhJs1t
</HTML> n/ui<&(
,lrYl!,
Java代码: Tm(Q@
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import java.applet.*; K%98;e9
import java.awt.*; pGO|~:E/L
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public class HelloWorld extends Applet l R:Ok8e
{ t.3Ct@wK
public void paint(Graphics g) s]$HkSH
{ 1_N~1Ik
g.drawString("Hello, world!", 100, 50); JQ~y- lt
} OAmES;Ck$(
} }@3Ud'
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L4MxU 2
xnJjCEZ
java script aQz|!8Is
java script是一种用于HTML文件的脚本语言。要查看以下程序的运行结果,只要将其复制到任何HTML文本即可。 59&T