“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。 G_dsrpI=N
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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》。 QZ?=M@|f
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以下是用不同语言写成的Hello World程序的几个例子: 4#'("#R
Ada *k1<:
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with Ada.Text_Io; use Ada.Text_Io; a !mf;m
procedure Hello is A;O~#Chvd
begin 1<<kA:d
Put_Line ("Hello, world!"); 7]%Ypv$
end Hello; %c1#lEC2xN
;_(PVo
F5 ]C{
汇编语言 Z-B%'/.
80$fG8
x86 CPU,DOS,TASM &BvZF
MODEL SMALL nWvuaQ0}
IDEAL .y&QqxiE
STACK 100H \G2B?>E;
/2m?15c+
DATASEG Hku!bJ
HW DB 'Hello, world!$' 6y5A"-
thqS*I'#g
CODESEG NKmoG\*
MOV AX, @data R+~cl;#G6
MOV DS, AX %,iIpYx
MOV DX, OFFSET HW 07/L}b`P
MOV AH, 09H >2?aZ`r+
INT 21H ZK'-U,Y.H7
MOV AX, 4C00H 0iZGPe~
INT 21H kpI{KISQu
END P N*JR
olW|$?
q,2]5'
x86 CPU,GNU/Linux,NASM .Xdj(_&
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). sncIqsZ
;Enter this into "hello.asm" then type: 4TwQO$C
;"nasm -f elf hello.asm" cFagz* !
;"ld hello.o -o hello" Y=
7%+WyD
;"./hello" P(>(K{v
T'fcc6D5p
section .data ;data section declaration Z.wA@ ~e
msg db 'Hello World!',0AH zLD|/`
len equ $-msg ;string length }N*>QR5K
L@^~N$G&u
section .text ;code section declaration =ORf%f5"'
global _start ;entry point (start of execution) "|m|E/Z-9
_start: mov edx,len ;string length lZQ/W:OE
mov ecx,msg ;string start $oLU; q%
mov ebx,1 ;file handle: stdout %ObD2)s6:^
mov eax,4 ;sys_write 3[XQR8o
int 80h ;kernel system call h)v^q: ='
^MmC$U^n
mov ebx,0 ;return value %Z8vdU# l
mov eax,1 ;sys_exit !%Y~~'5 h
int 80h ;kernel system call C`'W#xnp1
0q9>6?=i
|fHB[ W#
x86 CPU,Windows,MASM32 t+nRw?Z
.386 w18RA#Zo/
.model flat,stdcall b%t+,0s|
option casemap:none u7;~
;Include 文件定义 Y&2aO1
include windows.inc ba@=^Fa;
include user32.inc IOK}+C0e
includelib user32.lib p$k\m|t
include kernel32.inc x>~p;z#VX
includelib kernel32.lib ~B$b)`*
;数据段 !Do,>gO
.data B/"2.,
szCaption db 'A MessageBox!',0 MbXq`%
szText db 'Hello,world!',0 0
3~Ikll
;代码段 r
Db>&s3
.code 1IgHc.s
start: t?^9HP1b_
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK M_``'gw
invoke ExitProcess,NULL OSzjK7:
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 2BzqY`O
end start $cVi;2$p
'xFYUU]#T^
{[(pWd%J
AWK X;!D};;M
BEGIN { print "Hello, world!" } +@VYs*&&
y5m!*=`l`
:o"8MZp
BASIC dZGbC 9
传统版BASIC(例如GWBASIC): MF[z-7
jK8'T_Pah
10 PRINT "Hello, world!" P.sgRsL
20 END Vj;
vo`T
d \>2
或在提示符输入: *T4<&
NfE.N&vI_c
?"Hello, world!":END y7<&vIEC
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现代版BASIC(例如Quick BASIC): 2@vj!U 8
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Print "Hello, world!" v.W{x?5
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以下的语句在Quick BASIC中同样有效: :G)<}j"sM
83.E0@$
? "Hello,world!" w5]l1}rl
:k46S<RE
A2x;fgi
BCPL 3z{S}~
GET "LIBHDR" 9e<Zgr?N
l9{#sas
LET START () BE )Mzt3u
$( W'_/6_c$!
WRITES ("Hello, world!*N") r@T| e
$) |Vx~fK S\
-O&"|
z^sST
Befunge ,m07p~,V
"!dlrow olleH">v !v!N>f4S$
, iUr xJh
^_@ b"8FlZ$
8U.$FMx :
i#,1iVSG
Brainfuck Q2C)tVK+
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< !Y;<:zx5
+++++++++++++++.>.+++.------.--------.>+.>. "+iAd.qd
>,h1N$A+
s?O&ZB2GM[
C =LZ>su
#include <stdio.h> 2/tb6' =
2H&{1f\Bf
int main(void) 1&|Dsrj
{ 2
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printf("Hello, world!\n"); 2ALj}
return 0; Xyv8LB
} K="I<bK
Kj*m r%IaU
4`mO+.za1
C++ wL<j:>Ke[3
#include <iostream> ~4s-S3YzaM
Um
;kd
int main() KR3-Hb4
{ :'w?ye[e
std::cout << "Hello, world!" << std::endl; K[?R[
return 0; KCXw n
} r`]7S_t5T
XUsy.l/
~eo^`4O{{
C++/CLI @
t@|q
int main() ZBj6KqfST%
{ Js}tZ\+P75
System::Console::WriteLine("Hello, world!"); `=!p$hg($
} J1-):3A
>=!AL,:
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C# (C Sharp) 6=>7M
b$
class HelloWorldApp k.Zll,s
{ 96W4c]NT
public static void Main() md6*c./Z
{ tL8't]M,
System.Console.WriteLine("Hello, world!"); g)M#{"H
} P$h;SK
} -fM1$/]
0^>E`/
v:P!(`sF
COBOL hCLk#_
IDENTIFICATION DIVISION. TczXHT}G
PROGRAM-ID. HELLO-WORLD. 3@X|Gs'_S
%)IrXz>Zh
ENVIRONMENT DIVISION. fI[dhd6
szn%wZW
DATA DIVISION. r"]Oe$[#
T` ;k!F46
PROCEDURE DIVISION. 3Vu8F"
DISPLAY "Hello, world!". JfKg_&hM
STOP RUN. jI#z/a!j:
t/Z!O
z6ZE
P7 8uq
Common Lisp >H?uuzi
(format t "Hello world!~%") w$% BlqN
xL&PJ /'
^%zNa6BL
DOS批处理 |Y4q+sDW
@echo off dKe@JQ+-z
echo "Hello, world!" K|~AA"I;
u.&|CF-
]xB6cPdLu
Eiffel {Vl"m2
class HELLO_WORLD SbJh(V-pr
)GCLK<,swu
creation Et0&E
make -$tCF >,
feature tnRJ#[Io
make is Ko-QR(
local tz8t9lb[
io:BASIC_IO MVuP
|&:n
do 3It8&x:
!!io ]84YvpfW
io.put_string("%N Hello, world!") 4`G=q^GL,
end -- make /^QFqM;
end -- class HELLO_WORLD iXnx1w
F$C+R&V_
/~"AG l.
Erlang q]?+By-0
-module(hello). [R$liN99z;
-export([hello_world/0]). }Y$VB%&Hy
W#Cq6N
hello_world() -> io:fwrite("Hello, World!\n"). }amE6
lzI/\%
=KW|#]RB^
Forth k^yy$^=<
." Hello, world!" CR tpz=}q
R_~F6O^EO
fcn_<Yh0W
Fortran bF7`] 83
WRITE(*,10) gTyW#verh$
10 FORMAT('Hello, World!') 'iDu0LX
STOP (T;1q^j
END SFOQM*H
'U*udkn 2]
nO%<;-=u\
HTML kz|[*%10
<HTML> t3M0La&
<HEAD> KD9Ca $-
<TITLE> Hello World! </TITLE> td`wNy\
</HEAD> cG5$lB
<BODY> ]:Wb1
<p>Hello World!</p> 9cbB[c_.
</BODY> 0YHYx n
</HTML> &,Uc>L%m
RDJ82{
IBF.&[[S
HQ9+ $&NbLjeS
H [ y$j9
=1_j aDp
OC`QD5
INTERCAL H.f9d.<W%
PLEASE DO ,1 <- #13 g')?J<z
DO ,1 SUB #1 <- #238 8Y]u:v
DO ,1 SUB #2 <- #112 mURX I'JkX
DO ,1 SUB #3 <- #112 OHQ3+WJ
DO ,1 SUB #4 <- #0 'fXer!L}
DO ,1 SUB #5 <- #64 F}\[eFf[
DO ,1 SUB #6 <- #238 d!FONi
DO ,1 SUB #7 <- #26 79y'Ja+`j
DO ,1 SUB #8 <- #248 I *1#
DO ,1 SUB #9 <- #168 !fif8kf
DO ,1 SUB #10 <- #24 Yr Preuh
DO ,1 SUB #11 <- #16 R2 'C s
DO ,1 SUB #12 <- #158 s@R3#"I
DO ,1 SUB #13 <- #52 F'fM?!(
PLEASE READ OUT ,1 mfUKHX5
PLEASE GIVE UP %Ud.SJ3
>l6XZQ
>
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WA]cAL
Java C3^X1F0
public class Hello fdvi}SS8
{ ((n5';|N
public static void main(String[] args)
; \Y-
{ o(vZ*^\
System.out.println("Hello, world!"); X/K| WOO6
} -_:JQ
} (d1V1t2r6
5Xla_@WLW
oM m/!Dc
JSP zX006{vig
<% Ebmqq#SHjX
out.print("Hello, world!"); InTKdr^ P
%> +*]SP@|IYI
R?i-"JhW
8'>.#vyMGv
MIXAL xy2eJJq
TERM EQU 19 the MIX console device number u_$6LEp-
ORIG 1000 start address t%ou1&SO
START OUT MSG(TERM) output data at address MSG tVK?VNW
HLT halt execution !hpTyO+%
MSG ALF "MIXAL" c|8KT
ALF " HELL" P1vF{e
ALF "O WOR" ~0:$G?fz
ALF "LD " *NKC\aV`0
END START end of the program Y>c5:F;
0`zm>fh}
JB: mbH
Nuva
9QO!vx
<..直接输出..> a?f5(qW3
Hello, world! mk$Yoz
X*D5y8<
<..或者..> ZfF`kD\
D<$j`r
<. aa'0EU:
// 不带换行 :X]lXock0
? "Hello, world!" 9.]Cy8
ZnxOa
// 或者 |O #w dnYW
!)=#p9
// 带换行 \ltE rd-
?? 'Hello, world!' L.R\]+$U2
.> C[HE4xF6
VbY>l' rY
(W{ rv6cq
OCaml j8F~j?%!
let main () = Fb$5&~d
print_endline "Hello world!";; ?.|wfBI
:$u{
8=b{'s^^F
Pascal A@lhm`Aa
program Hello; zYNM<W;
begin ` Mv5!H5l
writeln('Hello, world!'); Ynt&cdK9
end. +$an*k9
~gcst;
Qg86XU%l
Perl I NFzX
#!/usr/local/bin/perl ph5xW<VNP
print "Hello, world!\n"; {jCu9 ]c!
B_6v'=7]
vf/$`IJ
PHP 6='_+{
<?php tleK(^
print("Hello, world!"); 7m@^=w
?> Z"PDOwj5
K{7S
)x5$io
Pike "m\UqQGX
#!/usr/local/bin/pike 3IRRFIiO
int main() cC(ubUR
{ FK/ro91L
write("Hello, world!\n"); E|6Z]6[
return 0; kcZ;SYosj
} -qnXa
*X=f
\?Oly171
PL/I 'KIi!pA.
Test: procedure options(main); 4jZi62
declare My_String char(20) varying initialize('Hello, world!'); jd*%.FDi{
put skip list(My_String); ?yd(er<_f
end Test; 9_CA5?y$:
Ozh^Q$>u
|rms[1<_
Prolog #uDBF
goal uk>/Il
write("hello,world!"). k%4A::=
x4 A TK
yz&q2
Python Qe=Q8cT
#!/usr/local/bin/python O( sFs1
print "Hello, world!" (B~V:Yt
VHY<(4@
vGMOXbq4&
REXX OYRR'X.E
say "Hello, world!" vN6]6nUOiT
."#jN><t
h0EGhJs
Ruby `peJ s~V
#!/usr/bin/ruby IUBps0.T\
print "Hello, world!\n" r~BQy'
a[{QlD^D
?p/kuv{\o#
Scheme |@n{tog+-
(display "Hello, world!") [HZCnO|N
(newline) ch2e#Jf8
(nP*
dXcMysRc%&
sed (需要至少一行输入) 3B_} :
sed -ne '1s/.*/Hello, world!/p' 4Hd@U&E
2|_Jup
T`2fPxM:cZ
Smalltalk 1Mhc1MU
Transcript show: 'Hello, world!' &Bdt+OQ ;
YF[!Hpzq
b<H6D}
SNOBOL NbK?Dg8WJG
OUTPUT = "Hello, world!" A#07Ly8kXn
END GLcZ=6)"'
3U.B[7fOM
mWFZg.#?
SQL N?<@o2{
create table MESSAGE (TEXT char(15)); ^OcfM_4pN
insert into MESSAGE (TEXT) values ('Hello, world!'); 01d26`G$i~
select TEXT from MESSAGE; `?|]: 7'<
drop table MESSAGE; mUY:S
|
,Vn]Ft?n
"5DAGMU
Tcl LB ^^e"
#!/usr/local/bin/tcl 71m-W#zyA
puts "Hello, world!" !Z2n;.w
V6!73 iY
~q%9zO'
TScript #RIfR7`T
? "Hello, world!" <{).x6
Z*Hxrw\!0
7JwWM2N?V
Turing c(=O`%B{
put "Hello, world!" >wm$,%zk
HyYQQ
i3WmD@
UNIX-style shell u2\qg;dP
程序中的/bin/sh可改为您使用的shell Fea\ eB
KI QBY!N+
#!/bin/sh
x$b[m20
echo 'Hello, world!' nR'EuI~(}
\6
0WP-s
Tb6x@MorP
GUI xla^A}{
*b l{F\
Delphi I; }%k;v6
program HelloWorld; "RX5] eJc\
uses iOXP\:mPo
Dialogs; $ u.T1v
begin |g^W @.P
ShowMessage('Hello, World!'); s!!t
end. 9i[2z:4HJ
/lok3J:
`A{~}6jw
Nuva ;p"XCLHl
<. 9i)mv/i
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) p00Bgo
.> ]4~D;mv
5BO!K$6
U)1qsUDF
Visual Basic 2EcYO$R!
MsgBox "Hello, world!" ~\IDg/9Cj
'或者 toZI.cSg4
Print "Hello, world!" d7zE8)D U7
&rWJg6/
EUS]Se2
Visual FoxPro Y9ce"*b
? "Hello, world!" sO-R+G/^7
3n)iTSU3
E1v<-UPbA
X11 =w?cp}HW
用一个程序 g]Ny?61
)_.H #|r
xmessage 'Hello, world!' O5*uL{pvT{
=YsTF T
用C++和gtkmm 2 7B2Og{P
iDxgAV f*
#include <iostream> .7rsbZzs
#include <gtkmm/main.h> GV[BpH
#include <gtkmm/button.h> s'=]a-l~
#include <gtkmm/window.h> .Vjpkt:H
using namespace std; gbZ X'D
$iJ
#%&D
class HelloWorld : public Gtk::Window r+Cha%&D
{ CfnCi_=[ `
public: ne*aC_)bT
HelloWorld(); sb5kexGxkc
virtual ~HelloWorld(); PS]XLz
protected: X0=-{<W
Gtk::Button m_button; XArLL5_L
virtual void on_button_clicked(); <Y6>L};
}; \Rt
41D[[Gh
HelloWorld::HelloWorld() : m_button("Hello, world!") nu-wQr
{ NVPYv#uK
set_border_width(10); y>18)8
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); ;BvWU\!
add(m_button); /qze
m_button.show(); .}>[Kr
} >Cc$ P
jzp%.4/j
HelloWorld::~HelloWorld() {} ;<