“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。 Eqp?cKrji
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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》。 MukPY2[Am
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以下是用不同语言写成的Hello World程序的几个例子: |WXu;uf$.u
Ada >5/dmHPc
with Ada.Text_Io; use Ada.Text_Io; o[+1O
procedure Hello is v :6`(5
begin $'L(}gNv5
Put_Line ("Hello, world!"); $aE%W? \
end Hello; lk6mu
<~"q z*_
T-fW[][&$
汇编语言 4{CVBowi
hAG++<H{
x86 CPU,DOS,TASM 6by5VESx
MODEL SMALL lCWk)m8
IDEAL w gATfygr
STACK 100H dMeDQ`c`W
*/nb%QV
DATASEG iP|h] ;a+@
HW DB 'Hello, world!$' Va(R*38k
B*Hp
CODESEG k/?+jb
MOV AX, @data ghbxRnU}
MOV DS, AX n$5,B*
MOV DX, OFFSET HW a3HT1!M)
MOV AH, 09H g@MTKqs
INT 21H NjYpNd?g
MOV AX, 4C00H KSh<_`j
INT 21H 3z\:{yl
END ,_u8y&<|I
ThJLaNS
4xtbP\=
x86 CPU,GNU/Linux,NASM }k \a~<'X
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). U>:CX
XHRt
;Enter this into "hello.asm" then type: `U2Z(9le
;"nasm -f elf hello.asm" ^B?{X|U37
;"ld hello.o -o hello" ,GVHwTZ0`
;"./hello" kSB)}q6a
L)8;96
section .data ;data section declaration ?*[t'D9f-
msg db 'Hello World!',0AH wd..{j0&
len equ $-msg ;string length 9Hlu%R
hd/5*C{s
section .text ;code section declaration qIA!m
.GC
global _start ;entry point (start of execution) f
IQ$a>
_start: mov edx,len ;string length !?O:%QG
mov ecx,msg ;string start z[ z'.{;D
mov ebx,1 ;file handle: stdout p*#SSR9<
mov eax,4 ;sys_write [7|}h/
int 80h ;kernel system call ;op+~@*!
c!{.BgGN
mov ebx,0 ;return value pR`.8MMc8
mov eax,1 ;sys_exit F~W*"i+EZ
int 80h ;kernel system call ,dzbI{@6
78dmXOZ'_h
.Pxb9mW
x86 CPU,Windows,MASM32
EvTdwX.H
.386 e/#4)@]
.model flat,stdcall 1i bQ'bZ
option casemap:none *bmk(%g
;Include 文件定义 .LnXKRd{
include windows.inc *% Vd2jW/
include user32.inc s)
V7$D
includelib user32.lib KM< M^l_Q
include kernel32.inc si3i#l&.b_
includelib kernel32.lib qi7dcn@d
;数据段 ?#pL\1"E
.data u"X8(\pOn
szCaption db 'A MessageBox!',0 >@h0@N
szText db 'Hello,world!',0 (;~[}"
;代码段 s8@f Z4
.code Be8Gx
start: @8n0GCv
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK Tk.MtIs)V}
invoke ExitProcess,NULL Q}\,7l
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 7 &GhJ^Ku
end start
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=*"Amd,
AWK o=;.RYi
BEGIN { print "Hello, world!" } ik7#Og~3
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BASIC N4)&K[
传统版BASIC(例如GWBASIC): YA{Kgc^
[OH>NpL
10 PRINT "Hello, world!" T_v
20 END ou,W|<%
nHyWb6
或在提示符输入: G\jr^d\
5XFhjVmEL
?"Hello, world!":END (Clf]\_II
k(%RX_]C
现代版BASIC(例如Quick BASIC): 8ru@ 8|r
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Print "Hello, world!" rAP+nh ans
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以下的语句在Quick BASIC中同样有效:
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? "Hello,world!" /~gM,*
<pK;D
gJvc<]W8!
BCPL 2kCJqyWy
GET "LIBHDR" 6K?+ad Klc
&/=xtO/Z{
LET START () BE zx#d_SVi
$( <XCH{Te1
WRITES ("Hello, world!*N") 47$JN}qI0
$) >s[}f6*2@
c{||l+B
mc!3FJ
Befunge YwB5Zqr
"!dlrow olleH">v yMX4 f
, %4n=qK9T5
^_@ 'Nfg%)-N
bgYM
$Cc4Sggq
Brainfuck ;h/Y9uYn
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< _IT,>#ba
+++++++++++++++.>.+++.------.--------.>+.>. 8b6:n1<fn
F^`sIrZvs
P5] cEZ n
C *$ ^ME
#include <stdio.h> nU`vj`K
"thfd"-
int main(void) szmjp{g0
{ Br-y`s~cP
printf("Hello, world!\n"); #cjB <APY
return 0; #BT=
K
} {Z-5
tC|5;'m.2
Fo~C,@/Qt
C++ G@,qO#5&
#include <iostream> Lc<Gny^
F!zZIaB]
int main() , aawtdt/
{ Ix1ec^?f
std::cout << "Hello, world!" << std::endl; .JQR5R |Q
return 0; W%vh7>.
} \?g)jY
H26j]kY
"* 'rzd
C++/CLI l9P~,Ec4''
int main() ]Ms~;MXlx5
{ $t}L|"=8X
System::Console::WriteLine("Hello, world!"); Dk]Y\:
} 63:ZDQ
\% ^<Ll
&w/aQs~
C# (C Sharp) #n~/~*:i92
class HelloWorldApp d*q_DV
{ $Fd9iJ!k
public static void Main() 7sHtJr
{ U%w-/!p
System.Console.WriteLine("Hello, world!"); I&>R]DV
} 3=;iC6
`
} 1*>a
0 B3*\ H}5
v]_{oj_(-
COBOL /xf%Rp4}
IDENTIFICATION DIVISION. ''f
PROGRAM-ID. HELLO-WORLD. ,YH^jc
Ev$?c9*>
ENVIRONMENT DIVISION. TioI$?l>W(
`"-)ObOj}
DATA DIVISION. ShGR!r<
/6L\`\g
PROCEDURE DIVISION. 7/aJ?:gX
DISPLAY "Hello, world!". nM}X1^PiK"
STOP RUN. #C!8a
#kma)_X
m"+9[d_u
Common Lisp xx9qi^
(format t "Hello world!~%") 9"MC<
yt_?4Hc"
o{zo-:>Jp
DOS批处理 {I(Euk>lR
@echo off K6|*-Wo.
echo "Hello, world!" 'lIT7MK
:/Sx\Nz78
M[TgNWl/[
Eiffel eJJvEvZ,
class HELLO_WORLD }tj@*n_
a*%>H(x
creation <=jE,6_|
make Z;??j+`Eo
feature :LcR<>LZ
make is i~l0XjQbs
local $?;aW^E
io:BASIC_IO OZk(VMuI
do 8$3 Tu"+;
!!io ^pZ(^
io.put_string("%N Hello, world!") C/
;f)k<
end -- make wl5!f|
end -- class HELLO_WORLD t^u X9yvx
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=I7#Vtd^K<
Erlang M;3uG/E\
-module(hello). O'$:wc#
-export([hello_world/0]). pD`7N<F 3
Ng+k{vAj
hello_world() -> io:fwrite("Hello, World!\n"). bU_9GGG|
HjV83S;
:K2N7?shA
Forth Q1s`d?P/`
." Hello, world!" CR &t%ICz&3
|\N[EM%.@
.c~;/@{
Fortran 5O*.qp?
WRITE(*,10) c%i/ '<Afr
10 FORMAT('Hello, World!') 2r[Q$GPM<
STOP fqvA0"tv
END N}\$i&Vi
3go!P])
rq2XFSXn
HTML o.Q|%&1
<HTML> E: XzX Fxx
<HEAD> #7gOtP#{
<TITLE> Hello World! </TITLE> 7nIg3s%
</HEAD> h}+,]^
<BODY> J/RUKhs/
<p>Hello World!</p> ^qV*W1|0
</BODY> w*Kw#m'U
</HTML> cWh Aj>?_Q
$K;4=zN>t:
IVEvu3
HQ9+
`db++Z'C
H OL=IUg"
$@Hw DRP
p?8>9
INTERCAL :
<m0
GG
PLEASE DO ,1 <- #13 AO/J:`
DO ,1 SUB #1 <- #238 i3#]_ p{
DO ,1 SUB #2 <- #112 yUNl)E
DO ,1 SUB #3 <- #112 vxbO>c
DO ,1 SUB #4 <- #0 V-J\!CHX
DO ,1 SUB #5 <- #64 B.{0,bW?
DO ,1 SUB #6 <- #238 )"j_NlO
DO ,1 SUB #7 <- #26 TKj9s'/
DO ,1 SUB #8 <- #248 % J+'7'g
DO ,1 SUB #9 <- #168 ^R K[-tVV
DO ,1 SUB #10 <- #24 "$
u"Py
DO ,1 SUB #11 <- #16 +J.^JXyp0
DO ,1 SUB #12 <- #158 5l{_E:.1
DO ,1 SUB #13 <- #52 51&wH
PLEASE READ OUT ,1 1v,4[;{
PLEASE GIVE UP N"HN]Y@w
~_^nWT*BV
b/
~&M+)
Java ]iPTB
public class Hello R,6?1Z:J
{ EeL~`$f
public static void main(String[] args) !~>u\h
{ :Wb+&|dU
System.out.println("Hello, world!"); EY> %#0
} kiqq_`66
} @8V8gV?zm
Z>Sv[Ec
2+y4Gd 7
JSP RZDZ3W(;h
<% 8FbBv"LI,g
out.print("Hello, world!"); J*$ !^\s
%> *B@<{x r
+a;:7[%&
Qv']*C[!z
MIXAL /R
F#B#9
TERM EQU 19 the MIX console device number -+O8v;aC'
ORIG 1000 start address P]!eM(
START OUT MSG(TERM) output data at address MSG |A5]hL
HLT halt execution gqGl>=.m
MSG ALF "MIXAL" 9) mJo(
ALF " HELL" AL,|%yup
ALF "O WOR" 7j._3'M=Kc
ALF "LD " K$f~Fft
END START end of the program ob-be2EysH
1/j}VC
~e'FPVDn
Nuva <3ovCqa
<..直接输出..> YzEa?F*$
Hello, world! 0 ,Bd,<3
& ({X9
<..或者..> ihs@
'jh
6VCw>x
<. vgsu~(L;
// 不带换行 IvH0sS`F
? "Hello, world!" MPNBA1s
bha_bj
// 或者 ~Dgui/r9J
Sh{odrMj*
// 带换行 ^Z2%b>
?? 'Hello, world!' cl14FrpYu
.> ?XW+&!ar
3}Uae#oy
HLTz|P0JZ
OCaml 2Ni2Gkf@
let main () = =}_c=z?UY
print_endline "Hello world!";; *i)GoQoB
0(
/eSmet
[,G]#<G?q
Pascal `Mp]iD{
program Hello; 8 rnr>Ee@
begin "f5u2=7 }
writeln('Hello, world!'); VZw( "a*TB
end. >;0z-;k6
4[rD|
9u"im+=:
Perl @Q TG
#!/usr/local/bin/perl Z#^2F8,]
print "Hello, world!\n"; &W|'rA'r
S@Jl_`<
,!bOzth2>K
PHP iTxn
<?php =:9n+7~$
print("Hello, world!"); ;jI\MZ~l\
?> jS|(g##4
`^|mNh
$]Y' [pE@
Pike a08B8
#!/usr/local/bin/pike 7r*>?]y+
int main() AF **@iG
{ ];j8vts&
write("Hello, world!\n"); A\k-OP]
return 0; lzl4pnj
} n |.- :Zy
AE^&hH0^
m,]Tl;f
PL/I *)u_m h
Test: procedure options(main); @{XN}tWDOp
declare My_String char(20) varying initialize('Hello, world!'); (7-K4j`
put skip list(My_String); QAcvv 0Hv
end Test; #`}g?6VHo
P,tN;c
$?I^Dk
Prolog 9$S2:2(G
goal 0*q~(.>a
write("hello,world!"). @AVx4,!>[
VJuPC
;2%3~L8?V
Python [y>Q3UqN
#!/usr/local/bin/python /rJvw
print "Hello, world!" 9.PY49|
;41s&~eR
mQ' ]0D S
REXX rPr#V1}1a
say "Hello, world!" rA{h/T"
28Q`O$=v
4 #4kfGoT
Ruby OM2|c}]ZQ
#!/usr/bin/ruby uyAhN
print "Hello, world!\n" cS{ l2}E
iHQFieZ.E
I%{U~
Scheme KAEf4/
(display "Hello, world!") cF,u)+2b|6
(newline) D {>,2hC
0Wv9K~F
Tz%l9aC
sed (需要至少一行输入) ,3N8
sed -ne '1s/.*/Hello, world!/p' ZFrK'BvbR
2Uu,Vv
"B)DX*-\?
Smalltalk C|z`hNp
Transcript show: 'Hello, world!' ~oSLWA9
cDE?X o'!
_FAwW<S4B
SNOBOL >+1^X eeS
OUTPUT = "Hello, world!" `1pri0!
END VO++(G)
zA-?x1th&
ls#O0
SQL '[Nu;(>a
create table MESSAGE (TEXT char(15)); .%~
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insert into MESSAGE (TEXT) values ('Hello, world!'); dbnH#0i
select TEXT from MESSAGE; S,Tm=} wj
drop table MESSAGE; I|iI
,l/9
swlxV@NQ
f
( UcJx
Tcl x2|DI)J1'
#!/usr/local/bin/tcl !.3
MtXr
puts "Hello, world!" S2j7(T;~YB
tDIzn`$z
B-M|}T
TScript hhYo9jTHW
? "Hello, world!" +R#*eo;o7
Nnv&~D>
,0#OA*0B
Turing ?nUV3#6{
put "Hello, world!" 7"8HlOHA
jzzVZ%t
7B7I'{d
UNIX-style shell Gg,,qJO
程序中的/bin/sh可改为您使用的shell vi lNl|
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3
#!/bin/sh xB9^DURr\
echo 'Hello, world!' 7g(rJGjtg
5O)Z}
P[gk9{sv
GUI QC
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p'xj:bB
Delphi VFG)|Z
program HelloWorld; .@=d I
uses
:i:Zc~%
Dialogs; wl(}F^:/`
begin =PO/Q|-v?
ShowMessage('Hello, World!'); :q6hT<f;
end. yfP&Q<|
QKHm OVh]
rZ0@GA
Nuva XUMCz7&j
<. b\^ Sz{
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) )OjbmU!7
.> UDp"+nS
K8e >sU.
. dM 0
Visual Basic /a9+R)Al
MsgBox "Hello, world!" zRf]SZ(tO
'或者 YK"({Z>U
Print "Hello, world!" ZO0_:T#Z
r2U2pAy#
?:H9xJ_^
Visual FoxPro sH+]lTSX6{
? "Hello, world!" Snh\Fgdz
eb( =V*
/B}]{bcp$
X11 Fb-NG.Z#
用一个程序 LM*9b
CR,
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xmessage 'Hello, world!' a?+) K
RsrZ1dhPvV
用C++和gtkmm 2 E}"&?oY
%M'"%Yn@(y
#include <iostream> X}p4yR7'
#include <gtkmm/main.h> N<:Ra~Ay
#include <gtkmm/button.h> &;%+Hduc
#include <gtkmm/window.h> ~ZvZk
using namespace std; ` qt4~rD
nz>A\H
class HelloWorld : public Gtk::Window $dwv1@M2
{ %iJ6;V4
public: r-[z!S
HelloWorld(); (<8T*Xo
virtual ~HelloWorld(); !4*@H
protected: ^z)lEO
Gtk::Button m_button; li; P,kg$
virtual void on_button_clicked(); )Hev-C"
}; >n` OLHg;
[a+?z6qI\}
HelloWorld::HelloWorld() : m_button("Hello, world!") j-A
S {w
{ b*p,s9k7
set_border_width(10); av`b8cGg
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); WpmypkJA#
add(m_button); "rAm6b-`
m_button.show(); J'B;
} w)!(@}vd
sav2 .w
HelloWorld::~HelloWorld() {} MfYe @;m
1noFXzeU3
void HelloWorld::on_button_clicked() `5!7Il
{ :mg#&MZj<
cout << "Hello, world!" << endl; Dvx"4EA{7{
} _@"Y3Lqi
=U,;/f
int main (int argc, char *argv[]) Z;%qpsq
{ yM#W,@
Gtk::Main kit(argc, argv);
ym${4
HelloWorld helloworld; qqkZbsN
Gtk::Main::run(helloworld); lgnF\)
} 59EAqz[:
o'H$g%
FWD9!M K
Java )hQ`l d7B
import java.awt.*; ]%mg(&p4
import java.awt.event.*; YY]LK%-
i]1[eGF
public class HelloFrame extends Frame )<3WVvB
{ +x+H(of.
HelloFrame(String title) "bw4{pa+
{ m6IZGl7%
super(title); 8PQ$X2)
} $@K+yOq+u
public void paint(Graphics g) Y-,#3%bT;;
{ f$H"|Mbe
super.paint(g); @j^qT-0M
java.awt.Insets ins = this.getInsets(); 1TbKnmTx
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); Xf#;GYO|2
} LW2Sko?Yo
public static void main(String args []) ,xR^8G8
{ 67n1s
HelloFrame fr = new HelloFrame("Hello"); c)$/Uu
C[x!Lf8'
fr.addWindowListener( qv,|7yw{
new WindowAdapter() OZISh?
{ tcRK\
public void windowClosing(WindowEvent e) y:v0&9L
{ sAnH\AFm
System.exit( 0 ); 3mBrnq]j>
} q=R=z$yr
} :b.#h7Qt<
); xE0+3@_>>
fr.setResizable(true); _$, .NK,6
fr.setSize(500, 100); G=b`w;oL:
fr.setVisible(true); AE<AEq
} hl# 9a?
} nbOMtK
&Nec(q<
\(;5YCCE
Java Applet E^|b3G6T
Java Applet用于HTML文件。 h,\_F#hi
c[j3_fn1]
HTML代码: WOg_Pn9HI
@c{Z?>dUc#
<HTML> 31bKgU{
<HEAD> "@Te!.~A.
<TITLE>Hello World</TITLE> k_y@vW3
</HEAD> {&2$1p/9'
<BODY> ETtK%%F0
ls/:/x(5d
HelloWorld Program says: 35c9c(A
g0iV#i
<APPLET CODE="HelloWorld.class" WIDTH=600 HEIGHT=100> }7&;YAt
</APPLET> pR~PB
i#Wl?(-i
</BODY> VW'e&v1 .
</HTML> 9@:&