“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。 zQ_[wM-
N!~NQ-Re'
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》。 U.0/r!po
v%Q7 \X(
以下是用不同语言写成的Hello World程序的几个例子: }}Uv0g8D
Ada ><7`$ 2Or
with Ada.Text_Io; use Ada.Text_Io; z1 px^#
procedure Hello is m?`Rl6!@8\
begin ea+rjv m
Put_Line ("Hello, world!"); QYGxr+D
end Hello; *s4!;2ZhsU
Ol0|)0
4!qDG+m
汇编语言 EKD>c$T^
M.Ik%nN#K0
x86 CPU,DOS,TASM (%!R
MODEL SMALL ?R} oXSVT
IDEAL PSE|4{'
STACK 100H rT) R*3
%Q~Lk]B?t
DATASEG ijYLf.R<
HW DB 'Hello, world!$' \ChcJth@o<
Q1[s{,
CODESEG [40 YoVlfM
MOV AX, @data /GaR&
MOV DS, AX _O<{H '4NO
MOV DX, OFFSET HW KJfyh=AD(
MOV AH, 09H 7A-rF U$
INT 21H t_Wn<)XA
MOV AX, 4C00H e{:qW'%
INT 21H N-]n>E
END
n9Yk;D2
N!,l4!M\N
0k 8SDRWU
x86 CPU,GNU/Linux,NASM -y(V-
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax).
KRe=n3 1
;Enter this into "hello.asm" then type: CcTJCuOS
;"nasm -f elf hello.asm" oJ+$&P(
;"ld hello.o -o hello" 5
S&>9l
;"./hello" <-pbLL 9
z wW9>Y
section .data ;data section declaration jGCW^#GE
msg db 'Hello World!',0AH L)5nb-qp
len equ $-msg ;string length urB.K<5ZA
AF-.Nwp
section .text ;code section declaration !@X#{
global _start ;entry point (start of execution) KWo)}m*6
_start: mov edx,len ;string length HPQ ,tlp6j
mov ecx,msg ;string start n6}1{\
mov ebx,1 ;file handle: stdout M~IiJ9{
mov eax,4 ;sys_write $7,dKC &
int 80h ;kernel system call 3a0C<hW
;xc
mov ebx,0 ;return value 6eD[)_?]y
mov eax,1 ;sys_exit 4$"Lf'sH6
int 80h ;kernel system call PhS"tOGtX
dEiX!k$#
{65X37W
x86 CPU,Windows,MASM32 o6R(BMwGa
.386 ^5+-7+-S
.model flat,stdcall d?mdw
?|
option casemap:none 2~)]E#9
;Include 文件定义 ,3j*D+
include windows.inc THJ+OnP
include user32.inc _xUXt)k
includelib user32.lib U PC& O
include kernel32.inc K&*FI (a
includelib kernel32.lib 1jyWP#M#
;数据段 r4s R5p]|
.data 8z-Td- R6
szCaption db 'A MessageBox!',0 83a
Rq&(R
szText db 'Hello,world!',0 9maw+ c!~
;代码段 gyK"#-/_d
.code ol\IT9Zb~
start: 3kMiC$
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK vIJdl2(^E
invoke ExitProcess,NULL ]Vsze4>Z[
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> c2nZd.SD|
end start >XF@=Jp
LHz{*`22q
L8fr
uwb
AWK i469<^A
BEGIN { print "Hello, world!" } f19
i
!
9`muk
;P_Zen
BASIC
P/Zo
传统版BASIC(例如GWBASIC): 6D OE6
BzZy s
10 PRINT "Hello, world!" *;m721#
20 END q)[gVL
9&tV#=s
或在提示符输入: J}x5Ko@
|z~?"F6 Y<
?"Hello, world!":END :97`IV%
T2dpn%I
现代版BASIC(例如Quick BASIC): gLH(Wr~(a
vcmS]$}
Print "Hello, world!" b6lL8KOu
sDiYm}W
以下的语句在Quick BASIC中同样有效: .UcS4JU
<3qbgn>}b
? "Hello,world!" ^\!p;R
e:l 6;
R3~&|>7/T
BCPL (F)zj<{f
GET "LIBHDR" ivm.ng[
A9#2.5
LET START () BE t*x;{{jL#(
$( %(E6ADB
WRITES ("Hello, world!*N") +[ F8>9o&
$) s{/nO)
{^qc`oF
g#AA.@/Z
Befunge 4q[r
KNl
"!dlrow olleH">v 'Zzm'pC
, \rJk[Kec
^_@ ZjcJYtD
S("bN{7nE
& mWq'h
Brainfuck YS]RG/'
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< DlP}Fp {
+++++++++++++++.>.+++.------.--------.>+.>. 4-m%[D
|W
3FdoADe{{
QZ6M,\
C 8_lD*bEt
#include <stdio.h> 4MIVlg9
x83XJFPWL
int main(void) (ZnA#%
{ |J\/U,nh
printf("Hello, world!\n"); jsR1jou6
return 0; \ Q6Ip@?
} W1OGN4`C
wFvilF
V
>#ou8}0
C++ M3Z yf
#include <iostream> 6k[u0b`
NOx|
#
int main() TwH(47|?Nt
{ ,9rT|:N
std::cout << "Hello, world!" << std::endl; 1/i|
return 0; TnG"_VK9R
} 2/~v
i ]_fh C
a'\`Mi@rb
C++/CLI i~2>kxf;K1
int main() t@ Jo ?0s
{ ``SjALf
System::Console::WriteLine("Hello, world!"); 7Ct m({I-
} E,r PM
)#Id2b~
UJZa1p@L
C# (C Sharp) {R#nGsrt;
class HelloWorldApp IP >An8+
{ :!/}*B
public static void Main() <Z&gAqj 2
{ BoXCc"q[
System.Console.WriteLine("Hello, world!"); %*uqtw8
} uJWX7UGuz
} KDhHp^IXQ
=19]a
i2*nYd`K
COBOL wOsr#t7
IDENTIFICATION DIVISION. Ne[O9D
7
PROGRAM-ID. HELLO-WORLD. Q.fBuF
^_oLhNoez2
ENVIRONMENT DIVISION. ;A C] *
Ue%0.G|<W
DATA DIVISION. BgRiJFa.d[
cmI8Xf]"P-
PROCEDURE DIVISION. Ik,w3 }*P*
DISPLAY "Hello, world!". @bPJ}C
STOP RUN. wD<G+Y}
o ).pF">jh
*rbayH
Common Lisp N\0Sq-.
(format t "Hello world!~%") OS,$}I[`8
t
_W |`
52~k:"c
DOS批处理 jPd<h{js
@echo off pQ>V]M
echo "Hello, world!" m/ukH{H1%
c{<3\
|joGrWv4
Eiffel :Cuae?O,
class HELLO_WORLD =SdWU}xn2
XyI w5
9
creation A(uN=r@O
make <L`R!}
feature OJK/>
make is +VeLd+Q}
local crT[;w
io:BASIC_IO qm '$R3g
do p?`N<ykF<
!!io ,Q:dAe[ZsX
io.put_string("%N Hello, world!") _#+9)*A
end -- make .{}t[U
end -- class HELLO_WORLD 2 rH6ap
{> }U>V
ANNL7Z3C
Erlang 51&T`i
-module(hello). f8j^a?d|
-export([hello_world/0]). Glwpu-@X
{Xp.}c
hello_world() -> io:fwrite("Hello, World!\n"). ?-VN+
d7
&a:aW;^A7
N+tS:$V
Forth {/Cd ^CK
." Hello, world!" CR
~)Z`Q
g %Am[fb
M}vPWWcl
Fortran 4 A<c@g2
WRITE(*,10) CuGk?i
10 FORMAT('Hello, World!') zknD(%a
STOP cnsGP*w
END =_86{wlk
Xnh1pwDhe<
w5;EnI
HTML Z`%;bP:
<HTML> l{R)yTO
<HEAD> Xu$*ZJ5w
<TITLE> Hello World! </TITLE> aZ^lI
6@+4
</HEAD> ^>"?!lv
<BODY> aJF`rLm
<p>Hello World!</p> |WX4L7yrhK
</BODY> ob;oxJ@[c
</HTML> %(]rc%ry0
<(^pHv7Q
,i|f8pZ
HQ9+ e,BJD>N ?
H G pd:k
;CW$/^QNr5
)Ga6O2:
INTERCAL M]'AA
Uo8
PLEASE DO ,1 <- #13 o i?ak
DO ,1 SUB #1 <- #238 M~6I-HexT|
DO ,1 SUB #2 <- #112 /<C=9?Ok
DO ,1 SUB #3 <- #112 IlrmXSr
DO ,1 SUB #4 <- #0 ' 4"L;){:L
DO ,1 SUB #5 <- #64 O^GX Fz^
DO ,1 SUB #6 <- #238 7'I7
DO ,1 SUB #7 <- #26 7jPmI
DO ,1 SUB #8 <- #248 5Zov<+kE
DO ,1 SUB #9 <- #168 E=E<l?ob
DO ,1 SUB #10 <- #24 AM[:Og S
DO ,1 SUB #11 <- #16 Ef!F;D e)A
DO ,1 SUB #12 <- #158 ]'G7(Y\)f
DO ,1 SUB #13 <- #52 v\Hyu1;8
PLEASE READ OUT ,1 }pA4#{)
PLEASE GIVE UP twn@~$
tFwlx3
*}J_STM
Java w&{J9'~
public class Hello _=] FJhO
{ cMg/T.O
public static void main(String[] args) q
mB@kbt
{ j7d;1 zB+G
System.out.println("Hello, world!"); B_S3}g<~
} !8g
y)2
} sF$m?/Kt
,&-[$,
UQFuEI<1-
JSP pr"flRQr#
<% { SfU!
out.print("Hello, world!"); J\V(MN,
%> ,b4&$W].
Jj " {r{
UU/|s>F
MIXAL )B_h"5X4\y
TERM EQU 19 the MIX console device number J$;)TI
ORIG 1000 start address 8'_Y=7b0Nw
START OUT MSG(TERM) output data at address MSG zCrcCr
HLT halt execution tpN}9N
MSG ALF "MIXAL" @jHio\/_
ALF " HELL" brWt
ALF "O WOR" r.^&%D
ALF "LD " GLyh1qNX
END START end of the program 2e"}5b5
%u}sVRJ
R.N*G]K5
Nuva *$VurqLn
<..直接输出..> %a `dOEO
Hello, world! B*IDx`^Y
R{vPn8X6g
<..或者..> 639k&"V
YqgW8EM
<. "=.|QKC1`
// 不带换行 D,a%Je-r,
? "Hello, world!" z7C1&bGe
lQ"i]};<D
// 或者 &v,p_'k
Y=Qf!Cq]
// 带换行 ;kBies>V
?? 'Hello, world!' s jm79/
.> \<**SSN
+ctv]'P_
`x)bw
OCaml #LJ-IDuF!
let main () = mNoqs&UB
print_endline "Hello world!";; 8
-A7
0h4}RmS
-QDgr`%5
Pascal \DK*>
k
program Hello; D|9fHMg%
begin !`o:+Gg@
writeln('Hello, world!'); VY@hhr1s~
end. [t{#@X
C}_:K)5q
C)s1'
=TZ
Perl tY'QQN||
#!/usr/local/bin/perl =hIT?Z6A
print "Hello, world!\n"; .+}o'rU
[nIG_j>D-f
389.&`Q%Ut
PHP a] =\h'S
<?php 9t.yP;j\Y
print("Hello, world!"); 8p{
?> U^BXCu1km
2 _n*u^X:_
3Lki7QW`
Pike ok%!o+nk.
#!/usr/local/bin/pike ;<@6f @
int main() rq["O/2
{ lFGxW 5
write("Hello, world!\n"); tkqBCKpDa
return 0; ZM`P~N1?)g
} a9zph2o-
x9A
ZS#e)[
zN/~a)
PL/I (!5}" fj
Test: procedure options(main); % W',c u
declare My_String char(20) varying initialize('Hello, world!'); YzW7;U
S
put skip list(My_String); \Rqh|T<D
end Test; sJK:xk.6!
y6jmn1K
DPQGh`J
Prolog *M<BPxh0w]
goal H9Q7({v
write("hello,world!"). a {$k<@Ww
wU)5Evp[
[=ak>>8
Python [2 w<F[
#!/usr/local/bin/python I=
h4s(
print "Hello, world!" agm5D/H]:
NwlRPyt
w[7.@ %^[
REXX gq_7_Y/
say "Hello, world!" >l< ~Z;
(<R\
:Mu8W_
Ruby +bc#GzVF
#!/usr/bin/ruby D7WI(j\
print "Hello, world!\n" {&}/p-S
+>:_kE]?nX
"K+N f
Scheme X]pWvQ Q]
(display "Hello, world!") oz0n$`O$/
(newline) a}qse5Fr
*JY`.t
J"Y
sed (需要至少一行输入) t>6x)2,TC
sed -ne '1s/.*/Hello, world!/p' 2VV[*QI
a j@C0
#S53u?JV8
Smalltalk @>#{WI:"~
Transcript show: 'Hello, world!' Ld}(*-1i
n:*_uc^C
XAU_SPAjiw
SNOBOL uVq5fT`B
OUTPUT = "Hello, world!" uH
ny ]
END Ck3QrfM
UR/qVO?
.YjrV+om1
SQL 9QOr,~~s
create table MESSAGE (TEXT char(15)); bQXc IIa{
insert into MESSAGE (TEXT) values ('Hello, world!'); l~fh_IV1
select TEXT from MESSAGE; 8!uL-_ Bn
drop table MESSAGE; S)\JWXi~:J
$#G6m`V
O$"bd~X
Tcl O>SuZ>g+7
#!/usr/local/bin/tcl sP6 ):h
puts "Hello, world!" Wkg*J3O
'0CXHjZN
VBbUl|X\
TScript ;w+:8<mM}a
? "Hello, world!" W>}Qer4
#aitESbT
Th7wP:iDP
Turing ~+pg^en
put "Hello, world!" H5AK n*'7
Avs7(-L+s
[}A_uOGEP
UNIX-style shell P1)* q0
程序中的/bin/sh可改为您使用的shell x1m8~F
u}-d7-=
#!/bin/sh FylWbQU9
echo 'Hello, world!' /'Quu)~
*=$[}!YG
/'&.aGW4%
GUI *Nvy+V
I" 8d5a}
Delphi ^i{,z*vi
program HelloWorld; Y]+e
Df
uses 0NL :z1N-h
Dialogs; >vD['XN,
begin E6'8Zb
ShowMessage('Hello, World!'); F* 3G_V
end. TnN^2:cU
(j8GiJ]{L,
Ud>`@2
Nuva @@xO+$6
<. Fa sI'Ulk
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) U;';"9C2>
.> jo,6Aog|u
d3EjI6R*z
tSEA999
Visual Basic (@%XWg
MsgBox "Hello, world!" "C:rTIH
'或者 8lU;y)Z
Print "Hello, world!" -d|BO[4j
5wzQ?07T_
F3r S6_
Visual FoxPro W$z#ssr
? "Hello, world!" =gW"#ZjL){
YHETI~'j.
" 2ZI oa!^
X11 u{g]gA8s
用一个程序 ?JuX~{{.L
~8jThi
U
xmessage 'Hello, world!' KH>Sc3p
`xISkW4 %
用C++和gtkmm 2 2-8YSHlh
.HyjL5r-
#include <iostream> }Q`/K;yq
#include <gtkmm/main.h> pGY [f@_x-
#include <gtkmm/button.h> Y[f,ia
#include <gtkmm/window.h> b%3Q$wIJ6
using namespace std; ,]f) ,;=
?@_v,,|
class HelloWorld : public Gtk::Window rumAo'T/%
{ >:.w7LQy/
public: !aQIh
HelloWorld(); d>^~9X
virtual ~HelloWorld(); 5>'?:jY
protected: hX0RET
Gtk::Button m_button; G+ :bL S#:
virtual void on_button_clicked(); 2#'rk'X,K
}; |d~B]65t
d>YmKTk"
HelloWorld::HelloWorld() : m_button("Hello, world!") OF-E6b c
{ w>v5oy8s-
set_border_width(10); D35m5+=I
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); M]J[6EW
add(m_button); v]66.-
m_button.show(); '/Cg*o/
} W=~id"XtJ
"w;08TX8
HelloWorld::~HelloWorld() {} M_tj7Q3
W
vAi"$e
void HelloWorld::on_button_clicked() vz6SCGg,
{ JR/W9i
cout << "Hello, world!" << endl; kXigX-
} b+W)2rFO
$b4*/vMr
int main (int argc, char *argv[]) buRhQ"
{ n49;Z,[~
Gtk::Main kit(argc, argv); ?x:m;z/
HelloWorld helloworld; _i-\mR_~
Gtk::Main::run(helloworld); k&O C&
} D`V6&_.p
o(:{InpV%A
!{$qMhT
Java mRwXN*Izw
import java.awt.*; )r=9]0=
import java.awt.event.*; "PMO
'-`O.
4u
public class HelloFrame extends Frame |drf"lX<{
{ R'Sa?6xS4
HelloFrame(String title) R_maNfS]Z
{ 1d`cTaQ-
super(title); K-Re"zsz
} 8098y,mQe
public void paint(Graphics g) =ntftSH
{ j(&GVy^;?
super.paint(g); HB%K|&!+
java.awt.Insets ins = this.getInsets(); QQ*gFP.Ao
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); 6j_ 678
} B
i'd5B5
public static void main(String args []) {&E?<D2_&
{ wc"9A~
HelloFrame fr = new HelloFrame("Hello"); "";=DH
%yeu"
fr.addWindowListener( { AFf:[G
new WindowAdapter() [Uswf3
{ S[Vtq^lU
public void windowClosing(WindowEvent e) |0lLl^zp
{ kPW BDpzN
System.exit( 0 ); :RHm*vt
} p*Xix%#6
} K6-6{vt
); 5Wo5n7o
fr.setResizable(true); YDW|-HIF
fr.setSize(500, 100); jg?bf/$s
fr.setVisible(true);
%W(^6p!
} nkTYWw
} ^s=*J=k
lHcA j{6
<&`:&