“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。 p;._HJ(
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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》。 [onGNq?#
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以下是用不同语言写成的Hello World程序的几个例子: vV[eWd.o6M
Ada lLp^Gt^}w(
with Ada.Text_Io; use Ada.Text_Io; q[HTnx
procedure Hello is lL{5SH<Q
begin qR(\5}
Put_Line ("Hello, world!"); (IC]?n}
end Hello; <<(wa
j
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o=21|z
汇编语言 qp/v^$EA
zN!ZyI$nqP
x86 CPU,DOS,TASM Q,p}:e
MODEL SMALL Db)?i?o}t
IDEAL ?0)&U
STACK 100H F">Qpgt
oX0 D
DATASEG q8s0AN'@t'
HW DB 'Hello, world!$' OJ/,pLYu
IqC]! H0
CODESEG }D7I3]2>
MOV AX, @data b+@JY2dvj
MOV DS, AX Gs9:6
MOV DX, OFFSET HW odPL{XFj
MOV AH, 09H VG,u7A*Z#
INT 21H zoOaVV&1
MOV AX, 4C00H > ?6&c
INT 21H Fe]B&n
END x*?x=^I{
Rn{iaM2Y<
: y5<go8e
x86 CPU,GNU/Linux,NASM kBYNf =
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). Hj:r[/
;Enter this into "hello.asm" then type: ;k7xMZs
;"nasm -f elf hello.asm" L1ieaKw
;"ld hello.o -o hello" lmfi
;"./hello" {.QEc0-
@$LWWTr;
section .data ;data section declaration AI,(z;{P
msg db 'Hello World!',0AH Sg6"WV{<
len equ $-msg ;string length V#cqRE3XNi
x/;bu W-
section .text ;code section declaration Uc_'(IyO
global _start ;entry point (start of execution) Z7_m)@%;kk
_start: mov edx,len ;string length JS*m65e
mov ecx,msg ;string start tcLnN:
mov ebx,1 ;file handle: stdout LXEfPLS
mov eax,4 ;sys_write &K/ya7
int 80h ;kernel system call qjf[zF
mH Ic f{RG
mov ebx,0 ;return value ix(=3/Dgz
mov eax,1 ;sys_exit HuwU0:*
int 80h ;kernel system call O9EKRt
fcNL$U&-,i
.2>p3|F
x86 CPU,Windows,MASM32 >p.O0G
gg
.386 5]HS^II"
.model flat,stdcall tZ^Ou89:rG
option casemap:none qQ"Fv|]~>
;Include 文件定义 NR -!VJQ
include windows.inc y($%;l
include user32.inc E}sO[wNPf
includelib user32.lib q)Fq
i
include kernel32.inc ?pn}s]*/
includelib kernel32.lib Md0sK
;数据段 EmODBTu+
.data hjIT_{mk
szCaption db 'A MessageBox!',0 #a`a$A
szText db 'Hello,world!',0 0KGY\,ae:;
;代码段 Xlb0/T<g!
.code qEpi] =|
start: 1jc,
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invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK yqi^>Ce0
invoke ExitProcess,NULL WHjUR0NZ
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> R}lsnX<
end start [P 06lIO
w9,iq@
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b
AWK z)9wXo#~
BEGIN { print "Hello, world!" }
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p
;PjQt=4K
&2 `F n!m
BASIC O2BW6Wc
传统版BASIC(例如GWBASIC): |b*?
qf
^4,a 8`
10 PRINT "Hello, world!" Sqo
:-
20 END tI7:5Cm
G3rj`Sg^c
或在提示符输入: JaK}|
L+CyQq
?"Hello, world!":END TZ2=O<Kj
:'*DPB-
现代版BASIC(例如Quick BASIC): 7vABq(
`67[O4$<
Print "Hello, world!" 6IWxPt~
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以下的语句在Quick BASIC中同样有效: r=6v`)Qr
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? "Hello,world!" |\U5),m
)l!3(
Sp}tD<V
BCPL
u$-U*r
GET "LIBHDR" 1qf!DMcdZ
(iRide
LET START () BE I =1+h
$( Clh!gpB c
WRITES ("Hello, world!*N") <<i3r|}
$) BQ @huns3
T'LIrf
7c~u=U"
Befunge +reor@h
"!dlrow olleH">v
~i21%$
, i:u1s"3~
^_@ [+OnV&
D<V~f B
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Brainfuck qQ0cJIISb\
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< \mV'mZ9>
+++++++++++++++.>.+++.------.--------.>+.>. 4E+hRKuo,
KyzFnVH3)
~_s{0g]B
C HW7; {QMg
#include <stdio.h> zkO<-w
] Puy!Q
int main(void) bd<m%OM""
{ q+[SbG&
printf("Hello, world!\n"); H)>@/"j;
return 0; #(1j#\
} ZeEWp3vW
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z^GDJddG
C++ vmLxkjUm#
#include <iostream> UQ[B?jc
jaa"~5TO8
int main() me'd6!O9-
{ x3u4v~ "-
std::cout << "Hello, world!" << std::endl; XXh6^@H=
return 0; 6<' 21
} 8P"_#M?!
h68]=KyK
.58qL-iC
C++/CLI 4WE6fJ2X
int main() m\ddp_l
{ ;L,mBQB?0b
System::Console::WriteLine("Hello, world!"); fPrLM'
} [p2H=
{&"L~>/o
(I@rLvZr{
C# (C Sharp) tOOchu?=
class HelloWorldApp iC*F
{ [xT:]Pw}
public static void Main() Vur bW=~g
{ P)uDLFp]
System.Console.WriteLine("Hello, world!"); 8o/}}=m$
} o}<4*qlI
}
!xwG%{_
]XTu+T.aT
1Jj Y!
COBOL lhi_6&&[8
IDENTIFICATION DIVISION. e#B#B
PROGRAM-ID. HELLO-WORLD. nwN@DqO
/"?HZ% W
ENVIRONMENT DIVISION. oX4q`rt
~`D|IWMDq
DATA DIVISION. Gdg)9
HXoX
PROCEDURE DIVISION. b]7GmRekl
DISPLAY "Hello, world!". %J8|zKT5t
STOP RUN. @?[1_g_'P
!=y]Sv~h
^+
wD43
Common Lisp r)T:7zy
(format t "Hello world!~%") W;1|+6x
4pln5v=
Qjnd6uv{I
DOS批处理 ;P;((2_X9
@echo off *#TYqCc+g
echo "Hello, world!" {VP$J"\e
k64."*X
TI !a )X
Eiffel
|TE}`?y[g
class HELLO_WORLD gh>>Ibf
8`b`QtGf
creation IQ!\w-
make *c)uGz'cD
feature /1 RAAa
make is \V>?Do7
local +`sv91c
io:BASIC_IO !J=sk4T
do )I\=BPo|B
!!io ||zb6|7I4
io.put_string("%N Hello, world!") :iiw3#]
end -- make >I<r)w]
end -- class HELLO_WORLD )?2e
HK~xOAF
,KJw|x4}\
Erlang UYA_jpI P
-module(hello). e;GU
T:
-export([hello_world/0]). @Eb2k!T
~Xlrvb}LP
hello_world() -> io:fwrite("Hello, World!\n"). x'zBK0i
)XfzLF7
HAYMX:%
Forth f""`cdqAOh
." Hello, world!" CR ms_ VM>l
]?h`:,]
[Px'\nVf
Fortran }P3tn
WRITE(*,10) O,<IGO
10 FORMAT('Hello, World!') O'GG Ti]e
STOP vfB2XVc
END +f0~D(d!_
+x]9+D&
lc6iKFyG
HTML h8G5GRD
<HTML> /j"sS2$U
<HEAD> Uu 7dSU
<TITLE> Hello World! </TITLE> i-U4RZE
</HEAD> za'6Y*CGgX
<BODY> 1 ^g
t1o
<p>Hello World!</p> |+U<S~
</BODY> HP.E3yYK
</HTML> ]MtFf6&
gq"k<C0
iU+nqY'
HQ9+ h7X_S4p/Mg
H 1ZJQs6
|xoF49
XCsiEKZ_i
INTERCAL (]*H[)F/
PLEASE DO ,1 <- #13 q4UA]+-*
DO ,1 SUB #1 <- #238 =N);v\ Q$!
DO ,1 SUB #2 <- #112 0lM{l?
DO ,1 SUB #3 <- #112 jxgj,h"}9`
DO ,1 SUB #4 <- #0 8wH.et25k
DO ,1 SUB #5 <- #64 NDO\B,7
DO ,1 SUB #6 <- #238 ?8,%LIQ?
DO ,1 SUB #7 <- #26 rC_*sx
r^
DO ,1 SUB #8 <- #248 <P%}|@
DO ,1 SUB #9 <- #168 a4gi,pz$]
DO ,1 SUB #10 <- #24 pbHsR^
DO ,1 SUB #11 <- #16 to"'By{9
DO ,1 SUB #12 <- #158 QHBtWQgS
DO ,1 SUB #13 <- #52 7{oe ->r
PLEASE READ OUT ,1 fWGOP~0
PLEASE GIVE UP 3E^M?N2oc
o$.e^XL
x\s,= n3z
Java pWE `x|J
public class Hello I1 U7.CT
{ utlpY1#q/
public static void main(String[] args) R)Mt(gFZT_
{ Lh$dzHq
System.out.println("Hello, world!"); ~Z$bf>[(R7
} rSP_:}
} ?RFg$Z'^
02AI%OOH
:RxHw;!
JSP >cL{Ya}Rz
<% DZ
^1s~
out.print("Hello, world!"); s]27l3)B
%> fR-C0"c
W</n=D<,I
t j Vh^
MIXAL %ICglF R
TERM EQU 19 the MIX console device number )<4_:
ORIG 1000 start address f!t69nd%L
START OUT MSG(TERM) output data at address MSG \
u+xa{b|
HLT halt execution aaWJ*
>rJ
MSG ALF "MIXAL" V_U'P>_I
ALF " HELL" M~6@20$oW
ALF "O WOR" O$!*%TL
ALF "LD " ]r]k-GZ$
END START end of the program S\NL+V?7h
e yw'7
d6 _C"r
Nuva h7_)%U<J2
<..直接输出..> %1McD{
Hello, world! ts9pM~_~
+UWU|:
<..或者..> BRG|Asg(
Ek.&Sf$cd'
<. *j)M]
// 不带换行 -dTLunv
? "Hello, world!" ET^ |z
\[wCp*;1}
// 或者 mZ0J!QYk
pF=g||gS
// 带换行 cm>E[SHr
?? 'Hello, world!' K=u0nrG*
.> oholt/gb+0
1@sM1WMX
eo#^L}
OCaml #$'"cfRxc
let main () = BZ+-p5]-
print_endline "Hello world!";; w3*-^: ?j
\X}8q
:_dICxaLZT
Pascal K3$`
Kv>I
program Hello; DhKr;e
begin rE!1wc>L
writeln('Hello, world!'); MXAEX2xmme
end. &w~Xa( uu
0??Yr
[!*xO?yCJ
Perl EH9Hpo
#!/usr/local/bin/perl %I4zQiJ%
print "Hello, world!\n"; q@#BPu"\l
L0h
G
f_r0})
PHP \x\.
<?php u"VS* hSH
print("Hello, world!"); K!8zwb=fq
?> Aa(<L$e!`
Ns~&sE:
(RF>s.B<
Pike !)H*r|*[
#!/usr/local/bin/pike (7q^FtjA#
int main() ,I*X)(
{ m^Lj+=Z"
write("Hello, world!\n"); I
,FqN}
return 0; M?6;|-HH
} x(r+P9f\<
99ASIC!
KjR4=9MD
PL/I Uxl(9 6
Test: procedure options(main); L=1~ f-
declare My_String char(20) varying initialize('Hello, world!'); $-pbw@7
put skip list(My_String); b6W#SpCF
end Test; {K.rl%_|N
{gkwOMW
2)LX^?7R
Prolog z&'f/w8
goal f~gSJ<t4
write("hello,world!"). Z$2L~j"=!
w6,*9(;$Pk
6&!l'[hU
Python (.^8^uc7X
#!/usr/local/bin/python -Ds|qzrN%
print "Hello, world!" LF=c^9t
wL
eHQ]
7!d$M{0"
REXX ckwF|:e7*
say "Hello, world!" W8/(;K`/
i-13~Dk
!UNNjBBP7
Ruby dK# h<q1
#!/usr/bin/ruby Y1r,2 k
print "Hello, world!\n" (Pz8iz
zO2{.4
G1_Nd2w
Scheme cF.mb*$K
(display "Hello, world!") Qb@eK$wo}
(newline) K\sbt7~
gX/NtO%
{[3YJkrM
sed (需要至少一行输入) bXl8v
sed -ne '1s/.*/Hello, world!/p' lP0k:
iSd?N}2,I
,C!n}+27
Smalltalk kMS5h~D[
Transcript show: 'Hello, world!' 0eA5zFU7
|!b9b(_j9
{})y^L
SNOBOL ZlM_m
>,o
OUTPUT = "Hello, world!" UX}*X`{
END YC)hX'A\
a!u3HS-i
zz3 r<?#5
SQL [:pl-_.C
create table MESSAGE (TEXT char(15)); DcU C,
insert into MESSAGE (TEXT) values ('Hello, world!'); 1~EO+
select TEXT from MESSAGE; <JH9StGGc?
drop table MESSAGE; %c0z)R~
C9Wojo.
$h]NXC6J
Tcl LhKY}R
#!/usr/local/bin/tcl 51/sTx<Z}
puts "Hello, world!" z@`@I
Y UZKle
| XLFV
TScript ?d,M.o{0]
? "Hello, world!" R9E6uz.j
Gbx";Y8
jNqVdP]d\
Turing $O]^Xm3{@
put "Hello, world!" ReqE?CeV
a(!3Afi
5%qH7[dx
UNIX-style shell .' IeHh
程序中的/bin/sh可改为您使用的shell %xh?!s|G(
R}.3|0
#!/bin/sh TRCI\
echo 'Hello, world!' |P~q/Wff
m|`VJ0
&$Ci}{{n#
GUI 2moIgJ
JQH7ZaN
Delphi \086O9
program HelloWorld; 1::LN(`<
uses (6o:4|xl0
Dialogs; @oA0{&G{
begin ,aYU$~o#
ShowMessage('Hello, World!'); d{l{P]nr
end. Jbkt'Z(&J
W\a!Q]pV
Ba<#1p7_
Nuva x36NL^
<. fYs?D+U;PF
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) p&m
^IWD
.> _Z0\`kba+
K~$ 35c3M
YVJ+'
A=|
Visual Basic `TkbF9N+
MsgBox "Hello, world!" KDX$.$#
'或者 fvO;lA>`
Print "Hello, world!" !&\meS{
^} tLnF
wyNC|P;j$g
Visual FoxPro H[Cj7{V
? "Hello, world!" 3 ^pYCK%
=J`gGDhGY-
s v6INe:
X11 .dt#2a_5q
用一个程序 d~3GV(M
XS3{R
xmessage 'Hello, world!' V15q01bE#
# UjEY9"M
用C++和gtkmm 2 2S'AIuIew
~U/8 @gR
#include <iostream> va@Xb UC
#include <gtkmm/main.h> ?${V{=)*X'
#include <gtkmm/button.h> W.z$a.<(rF
#include <gtkmm/window.h> e{:86C!d)
using namespace std; '}@e5^oL
&Q<EfB
class HelloWorld : public Gtk::Window Rnz8 f}
{ f8R+7Ykx
public: sN;(/O
HelloWorld(); 9A(n_Rs7?
virtual ~HelloWorld(); G]at{(^Vz
protected: EgFl="0
Gtk::Button m_button; ?{?Vy9'B
virtual void on_button_clicked(); d8D yv#gT
}; /(y4V
_d/GdeLs
HelloWorld::HelloWorld() : m_button("Hello, world!") rtcJ=`)0`
{ uF+);ig
set_border_width(10); m\l51}xz
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); %C6|-?TAd
add(m_button); 8TUF w@H%
m_button.show(); )_X;9%L7
} 4(m/D>6:
Zp^)_ 0
HelloWorld::~HelloWorld() {} LH bZjZ2
%f_FGh
void HelloWorld::on_button_clicked() tP&{ J^G
{ 7 FEzak'
cout << "Hello, world!" << endl; )iT.A
} )~1.<((<
nR(#F 9
int main (int argc, char *argv[]) D`1I;Tb#
{ Ml'bZLwq
Gtk::Main kit(argc, argv); loml.e=87
HelloWorld helloworld; rve7YS'
Gtk::Main::run(helloworld); jM{qRfOrg
} \MfR #k0
|:~("rA+v
*QMF
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Java Ma% E&.ed
import java.awt.*; D%6ir*%T
import java.awt.event.*; YCtIeq%
`MN&(!&C*
public class HelloFrame extends Frame .%|OGl ?
{ { +i; e]c
HelloFrame(String title) ^H
f+du
{ @ARAX\F
super(title); "K9vm^xP
} UDhwnGTq(l
public void paint(Graphics g) _HSTiJVr
{ 8 h55$j
super.paint(g); y.L|rRe@P
java.awt.Insets ins = this.getInsets(); Wh#os,U$
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); ,| $|kO/
} KteZK.+#:
public static void main(String args []) L&