“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。 L[D+=
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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》。 6)?u8K5%r
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以下是用不同语言写成的Hello World程序的几个例子: FvPWS!H
Ada N[\J#x!U
with Ada.Text_Io; use Ada.Text_Io; czu9a"M>X
procedure Hello is SpU|Q1Q/h
begin N6u>V~i
Put_Line ("Hello, world!"); S2Ez}*plp
end Hello; ,.V<rDwN&
] dJ"_
tA< UkPT
汇编语言 kqj)&0|X
F:P2:s<d-
x86 CPU,DOS,TASM Fp@> (M#3
MODEL SMALL F7*)u-4Yn
IDEAL tN\I2wm
STACK 100H o@.{|j
w}OBp^V^
DATASEG cUG^^3!
HW DB 'Hello, world!$' l=l$9H,
5fiWo^s}
CODESEG %bF157X5An
MOV AX, @data Kx)PK
MOV DS, AX LS9,:!$
MOV DX, OFFSET HW I}|a7,8
MOV AH, 09H R6fkc^
INT 21H Nj2l>[L;
MOV AX, 4C00H /t7f5mA
INT 21H .AO-S)wHR
END Op]*wwI*h
n~\; +U
9{Et v w
x86 CPU,GNU/Linux,NASM RC1bTM
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 6.KEe^[-
;Enter this into "hello.asm" then type: ]
L#c
<0
;"nasm -f elf hello.asm" %PB{jo
;"ld hello.o -o hello" P/1YN
;"./hello" 1|xe'w{
B'(zhjV
section .data ;data section declaration =JfwHFHd#
msg db 'Hello World!',0AH RnRUJNlaG
len equ $-msg ;string length ak|
VnNa]
K/N{F\
section .text ;code section declaration =:w,wI.
global _start ;entry point (start of execution) F_R\
_start: mov edx,len ;string length i6n,N)%H
mov ecx,msg ;string start j|Vl\Z&o)
mov ebx,1 ;file handle: stdout "h[)5V{
mov eax,4 ;sys_write 1`L.$T,1!
int 80h ;kernel system call R59iuHQ[
m{RXt
mov ebx,0 ;return value aAGV\o{^
mov eax,1 ;sys_exit e<9 ^h)G
int 80h ;kernel system call I2i'
7* Y*_cH5
0wVM%Dng
x86 CPU,Windows,MASM32 tl!dRV92
.386 AQQa6Ce*
.model flat,stdcall PcT]
option casemap:none DMch88W
;Include 文件定义 \SQ4yc
include windows.inc g3[-[G^5
include user32.inc ([rn.b]
includelib user32.lib VPT?z
include kernel32.inc wS9V@
includelib kernel32.lib rYdNn0mhk
;数据段 fu~iF
.data :fL7"\
pf~
szCaption db 'A MessageBox!',0 K.wRz/M&g
szText db 'Hello,world!',0 1irSI,j%z
;代码段 >5kz#|@P
.code 57;0,k5Gy
start: 5,^DT15a4P
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK hLZfArq}
invoke ExitProcess,NULL A_U=`M=-
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 59j`Z^e
end start {p/Yz#
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D-C]0Jf3
AWK Km=
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BEGIN { print "Hello, world!" } )b]wpEFl
=,N"% }
g.`Ntsi$wI
BASIC sBI/`dGZV
传统版BASIC(例如GWBASIC): O-UA2?N@j
y_n4Y[4g
10 PRINT "Hello, world!" vI(LIfe;
20 END dz/@]a
E+XS7':I
或在提示符输入: &gS-.{w "
N.z2eo
?"Hello, world!":END _)= e`9%
mCg^Y)Q
现代版BASIC(例如Quick BASIC): 'bM=
aLm~.@Q
Print "Hello, world!" OwNM`xSa|\
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以下的语句在Quick BASIC中同样有效: YfT
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? "Hello,world!" b~tu;:
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~:Z|\a58j
BCPL NV/paoyx:*
GET "LIBHDR" )ADI[+KW
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LET START () BE W>+`e]z
$( :PN%'~}n
WRITES ("Hello, world!*N") Q~wS2f`)
$) QbHX.:C
iVeH\a
P~!,"rY
Befunge af@a /
"!dlrow olleH">v p>?(uGV
, JK!`uG+v
^_@
J?Y,3cc.
<aaT,J8%[
9fbbJ"I+
Brainfuck ALF21e*n
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< '#=n>
+++++++++++++++.>.+++.------.--------.>+.>. U%@C<o
"
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C c9jS
!uDMK
#include <stdio.h> p JF
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int main(void) @,,G]4zZ!
{ xWY\,'+Q
printf("Hello, world!\n"); ;Q vQ fV4
return 0; q#8\BOTP |
} SOsz=bVx
(m!kg
I*>q7Hsu
C++ ]CcRI|g}
#include <iostream> _\k?uUo&,^
;!
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int main() 85dC6wI4K
{ J"E _i]
std::cout << "Hello, world!" << std::endl; ^.@%n1I"5y
return 0; MRo_An+
} j`@`M*)GB
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=|_
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C++/CLI kUGFg{"
int main() v]Pyz<+
{ a"O;DYh
System::Console::WriteLine("Hello, world!"); hfbu+w):
} {0,6-dd5
sx7zRw
>X
T3=h7a %=
C# (C Sharp) [x,
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class HelloWorldApp H2[0@|<<
{ fH9"sBiO
public static void Main() Ex]Ku
{ :'q$emtY
System.Console.WriteLine("Hello, world!"); 4/*@cW
} |%XcI3@*
} |[#Qk 4Ttf
%o\+R0K
~-H3]
COBOL 9vDOSwU*
IDENTIFICATION DIVISION. m0.g}N-w
PROGRAM-ID. HELLO-WORLD. rrgOp5aV"
fXnewPr=#
ENVIRONMENT DIVISION. ps` j>vX*
:,qvqh][
DATA DIVISION. /L(}VJg-
4|cRYZj5
PROCEDURE DIVISION. g#6R(
DISPLAY "Hello, world!". *6u2c%^
STOP RUN. znWB.H
K7{B!kX4k
\BfMCA/
Common Lisp ct,;V/Dx
(format t "Hello world!~%") F}[!OYyg
B9
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x_-V{
k
DOS批处理 )@Y<
<9'2
@echo off mb3aUFxA;
echo "Hello, world!" 2PeMt^
!^NZp%Yd
&F7_0iAP(
Eiffel =)jo}MB
class HELLO_WORLD d+]= l+&
QH7 GEj]
creation @U?&1.\
make %52x:qGa
feature qW4\t
make is >Sw?F&
local (s|WmSQ
io:BASIC_IO oy[ px9Wx
do 16@<G
!!io WQ:Y NmQ1p
io.put_string("%N Hello, world!") GZx*A S]+
end -- make UNv!G/i-5
end -- class HELLO_WORLD /7+b.h])^
!L9]nO 'BL
c}),yQ|!:
Erlang |-*50j l
-module(hello). Us#/#-hJ
-export([hello_world/0]). U%BtBPL
E|RC|Sz=u
hello_world() -> io:fwrite("Hello, World!\n"). ?0sTx6x@
GCr]x '
ld|GY>rH
Forth 6,~1^g*
." Hello, world!" CR X$Q.A^9
Vep41\g^
726UO#*
Fortran 3PLA*n+%
WRITE(*,10) WLVkrTvX
10 FORMAT('Hello, World!') 8a8D0}'
STOP <RC %<
END rhaq!s38:
P&[&Dj
#E\6:UnT
HTML %8Y+Df;ax
<HTML> 5{DwD{Q
<HEAD> -U_,RMw~
<TITLE> Hello World! </TITLE> X6w+L?A
</HEAD>
- 3PLP$P
<BODY> d9jD?HgM(
<p>Hello World!</p> sy4Nm0m
</BODY> pz/W#VN
</HTML> !v%>W< 3Q
!.pcldx
}C/+zF6q
HQ9+ l(F\5Ys
H }|M:MJ`
\3K7)o^
GA[bo)"
INTERCAL C+`V?rp=s
PLEASE DO ,1 <- #13 H{9P=l
DO ,1 SUB #1 <- #238 g6.I~oQj
DO ,1 SUB #2 <- #112 ;:R2 P@6f
DO ,1 SUB #3 <- #112 /yx)_x{
DO ,1 SUB #4 <- #0 &e*@:5Z:k
DO ,1 SUB #5 <- #64 ywyg(8>zE
DO ,1 SUB #6 <- #238 Mty[)+se
DO ,1 SUB #7 <- #26 fTK84v"7_
DO ,1 SUB #8 <- #248 %`lJA W[
DO ,1 SUB #9 <- #168 b"trg {e
DO ,1 SUB #10 <- #24 *6=9 8C4I
DO ,1 SUB #11 <- #16 )xz_}6b]
DO ,1 SUB #12 <- #158 NZ!I >
DO ,1 SUB #13 <- #52 1#+|RL4o
PLEASE READ OUT ,1 ./'d^9{
PLEASE GIVE UP eMV8`&c'
"j8=%J{
rHOhi|+
Java `e3$jy@
public class Hello N6+^}2'*)
{ Y8lZ]IB
public static void main(String[] args) kou7_4oS
{ 8s[1-l
System.out.println("Hello, world!"); -lv(@7o~
} &?xmu204
} /yY} .S
){eQ.yW
L=HnVgBs
JSP Tj<B;f!u
<% }ksp(.}G
out.print("Hello, world!"); MujEjD "|
%> rb'mFqg*u
0fUsERr1*
&U}8@;
MIXAL 0sme0"Sl
TERM EQU 19 the MIX console device number 5.yiNWh
ORIG 1000 start address II~91IEk
START OUT MSG(TERM) output data at address MSG : vgn0IQ
HLT halt execution aiE\r/k8s
MSG ALF "MIXAL" `2x. -
ALF " HELL" KPjAk
ALF "O WOR" /PR4ILed
ALF "LD " oj'YDQ^uj
END START end of the program O?A%
^si[L52BZ
!V/7q'&t=
Nuva 2:nI4S
<..直接输出..> w5/6+@}
Hello, world! [>3dhj[;
b9-3
<..或者..> Y}Y~?kE>M|
L?&&4%%
<. L=C#E0{i
// 不带换行 :!?Fq/!
? "Hello, world!" El
:%\hGy
#mK?:O\-1
// 或者 %4YSuZg
X*5N&AJ
// 带换行 UVgSO|Tg
?? 'Hello, world!' R>;&4Sjr
.> e:.?T\
pm:- E(3#
E_Y!in
70
OCaml Bm%|WQK
let main () = ZB/1I;l`c
print_endline "Hello world!";; %Lh+W<;
UK,sMKbl1
XAtRA1.
Pascal '^[+]
program Hello; w8J8III\~
begin Zt=P 0
writeln('Hello, world!'); y+{)4ptg$<
end. )ZrB-(u~k
p
Tz]8[^
fy|I3
Perl m@w469&<(q
#!/usr/local/bin/perl RQ^
\|+_
print "Hello, world!\n"; W@'*G*f
a69e^;,>q
$MfRw
PHP ?<8c
<?php \ n^[!e"`
print("Hello, world!"); pFwJ:
?> /<(-lbq,
KHJ wCv
C=cn.CX
Pike ]?oJxW.
#!/usr/local/bin/pike pQC|_T#u
int main() s| Q1;%Tj
{ *n[B Bz
write("Hello, world!\n"); }_^ vvu
return 0; 3#>%_@<
} Qc PU{#6
NPM2qL9&J
,\aLv
PL/I eQn[
Test: procedure options(main); ?cKTeGrS
declare My_String char(20) varying initialize('Hello, world!'); ,IE.8h)H
put skip list(My_String); WpnP^gmX
end Test; %f1IV(3Qc
Hr!$mf)h
ux|
QGT2LY
Prolog G#6Z@|kVw
goal KT >Y^
write("hello,world!"). ?d{O'&|:
%^nNt:N0
\+l_H4\`K
Python iDhC_F|
#!/usr/local/bin/python DQc\[Gq&
print "Hello, world!" kp}[nehF
s@y;b0$gk
oGl<i
REXX .c0u##/0
say "Hello, world!" 6iF&!Fd>J
#Er"i
(uhE'IQ{(
Ruby X7`-dSVE
#!/usr/bin/ruby vH1,As
print "Hello, world!\n" y'>JT/Q5
o8hE.pf&
@EyB^T/
Scheme `NEi/jB
(display "Hello, world!") ?K:.Pa
(newline) c=9A d
&1&OXm$
^yq}>_
sed (需要至少一行输入) bX(/2_l
sed -ne '1s/.*/Hello, world!/p' zH9*w:"4<_
.cw)Y#;IG
M* Ej*#
Smalltalk "+wkruC
Transcript show: 'Hello, world!' S?C.:
/ #rH18
h{$k%YJ?
SNOBOL 6-)WXJ@V
OUTPUT = "Hello, world!" TJZ~Rpq
END %N`_g' r!
z9g6%RbwX
fiD,HGx
i
SQL SBs! 52
create table MESSAGE (TEXT char(15)); S_OtY]gF
insert into MESSAGE (TEXT) values ('Hello, world!'); M6^
\LtFt
select TEXT from MESSAGE; cL;%2TMk
drop table MESSAGE; HX}B#T
/93z3o7D>
A*81}P_
Tcl 748:*
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#!/usr/local/bin/tcl HpfZgkC+
puts "Hello, world!" 'd&d"E[
yg*
#~,
W83PMiN"T-
TScript z/f._Z(
? "Hello, world!" Ak kF6d+
H^@Hco>|
H-v[ShE
Turing %Q &']
put "Hello, world!" F'|e:h
QJrXn6`
Q@>1z*'I
UNIX-style shell a7F_{Mm
程序中的/bin/sh可改为您使用的shell $;Iz7:#jN
Jvsy
6R
#!/bin/sh xU0iz{9
echo 'Hello, world!' ^"54Q^SH
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Fw{@RQf8
GUI .35~+aqC
fR'!p: ~
Delphi ~OPBZ#
program HelloWorld; z5(5\j]
uses &B[*L+-E
Dialogs; h-;> v.
begin <jF&+[*iT
ShowMessage('Hello, World!'); ort*Ux)
end. YI"!&a'yj
X';qcn_^
V6HZvuXV!
Nuva ,Ww}xmq1H
<. <PuY"-`/Oc
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) Q<;EQb#
.> U:n~S
CLVT5pj='
_|0#
Visual Basic &dmIv[LU
MsgBox "Hello, world!" :.]EM*p?GV
'或者 b+J|yM<`
Print "Hello, world!" z _\L@b
Q[K$f %>
1+N'cB!y
Visual FoxPro i7r)9^y
? "Hello, world!" @-\=`#C**
xZ;eV76
<Z 3C&BM
X11 ~K3Lbd|
r
用一个程序 /}>8|#U3y
xt pY*
xmessage 'Hello, world!' GQY"
+xa8]
jLI1Ed
用C++和gtkmm 2 y] D\i5Xv
&&P9T/Zks
#include <iostream> uj.$GAtO)
#include <gtkmm/main.h> Q5Nbu90
#include <gtkmm/button.h> 3!gz^[!?EN
#include <gtkmm/window.h> #t(/wa4
using namespace std; { >[ ]iX
V61oK
class HelloWorld : public Gtk::Window .[]S!@+%
{ P[q>;Fx*
public: ArAe=m!u
HelloWorld(); JvW7h(u7g
virtual ~HelloWorld(); ~(XaXu
protected: \EoE/2"<
Gtk::Button m_button; V'W*'wo
virtual void on_button_clicked(); ro<w8V9.a
}; p.g> +7
IO"P /Q
HelloWorld::HelloWorld() : m_button("Hello, world!") ciml:"nQ
{ c|9g=DjK
set_border_width(10); a]V8F&)g#
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); <@ ts[p.
add(m_button); l:eC+[_;>
m_button.show(); ~zac.:a8
} f['lY1#V1
8\'tfHL
HelloWorld::~HelloWorld() {} hOZTD0
Eze w@*(
void HelloWorld::on_button_clicked() >"<s7$g
{ [u K,.G
cout << "Hello, world!" << endl; UV}:3c6 ZX
} :M{
)&{D
)z74,n7-
int main (int argc, char *argv[]) 4vG-d)"M2
{ O4oN)
Gtk::Main kit(argc, argv); T$2A2gb`
HelloWorld helloworld; y< dBF[
Gtk::Main::run(helloworld); x
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} YB4
ZI
1z&"V}y
YQ?hAAJ
Java 2(3Q#3V
import java.awt.*; YB 7A5
import java.awt.event.*; urx?p^c
Khi6z&