“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。 H}r]j\
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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》。 4vL\t
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以下是用不同语言写成的Hello World程序的几个例子: MX]#|hEeQ
Ada p^Ey6,!8]D
with Ada.Text_Io; use Ada.Text_Io; 3YLK?X8
procedure Hello is yr+QV:oVA
begin :WWHEZK
Put_Line ("Hello, world!"); 'ij+MU1
end Hello; M;XU"8
eM!Oc$C8[
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汇编语言 <,DMD
OF*E1BM
x86 CPU,DOS,TASM 7a_8007$l
MODEL SMALL $zOV*O2
IDEAL #*:1C h]B
STACK 100H dUB;ZB7
;L:UYhDbUx
DATASEG 8o:h/F
HW DB 'Hello, world!$' 1;m?:|6K{
hD#Mhy5h
CODESEG k@fxs]Y_L
MOV AX, @data roZn{+f
MOV DS, AX @B0fRG y
MOV DX, OFFSET HW V+y|C[A
F
MOV AH, 09H Ew]&~:$Ki
INT 21H KOR*y(* 8
MOV AX, 4C00H T=w0T-[f
INT 21H J_+2]X7n
END nEUH; z
,^CG\);
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x86 CPU,GNU/Linux,NASM }qGd*k0F0
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). t(UBs-t
;Enter this into "hello.asm" then type: :
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;"nasm -f elf hello.asm" @ebY_*
;"ld hello.o -o hello" _$A?
;"./hello" YO.ddy*59
w?_'sP{pd
section .data ;data section declaration KY2z)#/
msg db 'Hello World!',0AH "w 4^i!\
len equ $-msg ;string length "WY5Pzsi:
~d<&OL
section .text ;code section declaration [#aJ- Uu
global _start ;entry point (start of execution) `E;xI v|
_start: mov edx,len ;string length L8E4|F}
mov ecx,msg ;string start j7Zv"Vq@
mov ebx,1 ;file handle: stdout Wt5pK[JV
mov eax,4 ;sys_write 18~jUYMV
int 80h ;kernel system call Cw!tB1D
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h#*
mov ebx,0 ;return value ~mHrgxQ-
mov eax,1 ;sys_exit asQ^33g z
int 80h ;kernel system call d8Cd4qIXX
Z @DDuVr
c=-qbG0`
x86 CPU,Windows,MASM32 {Gh9(0,B?
.386 mxH63$R
.model flat,stdcall lP4s"8E`h
option casemap:none a$iDn_{
;Include 文件定义 "J&WH~8+N
include windows.inc
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include user32.inc Z6So5r%wZ
includelib user32.lib )yz)Fw|&
include kernel32.inc L;Yn q<x
includelib kernel32.lib wU/fGg*M2
;数据段 wqjR-$c
.data $PlMyLu7jc
szCaption db 'A MessageBox!',0 <Pf4[q&wM
szText db 'Hello,world!',0 -:!Wds
;代码段 .|P
:n'
.code >,Zn~8&Z
start: }YiFiGf,
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK 19[.&-u"
invoke ExitProcess,NULL {QN 5QGvK
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> SEWdhthP
end start F *U.cJ%
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rNm_w>bq
AWK hq&9S{Ep
BEGIN { print "Hello, world!" } Q4L7{^[X
EIpz-"S
x*X{*?5@
BASIC 5+b73R3r
传统版BASIC(例如GWBASIC): |g!$TUS.
Vvv;m 5.
10 PRINT "Hello, world!" N]ebKe
20 END 9B>P Qbs
E
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或在提示符输入: cUw$F{|W
zlkW-rRkR
?"Hello, world!":END 5]kv1nQ
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现代版BASIC(例如Quick BASIC): Xe\v6gbD
! P$[$W
Print "Hello, world!" VTX6_&Hc1g
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以下的语句在Quick BASIC中同样有效: ssH[\i
s?Gv/&
? "Hello,world!" s=K?-O
S*7 6V"")
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BCPL 4)XB3$<
GET "LIBHDR" Zx: h)I
3".#nN
LET START () BE ^8dCFw.rU
$( rodqa
WRITES ("Hello, world!*N") r&F
6ZCw
$) 93,7yZ5#
nYBa+>3BDf
\zDs3Hp
Befunge Q^xk]~G$(
"!dlrow olleH">v d*U<Ww^q
, XBcbLF
^_@ ,.|/B^jV
mwZ)PySm)
m !i`|]m
Brainfuck &xt
GabNk
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< >V\^oh)t]t
+++++++++++++++.>.+++.------.--------.>+.>. f)r6F JLU
*|@386\
Qte%<POx+
C Qf'g2
\
#include <stdio.h> l<7SB5
Zdfh*MHMg
int main(void) );n/G
{ #]gmM
printf("Hello, world!\n"); NQvI=R-g
return 0; YJ~mcaw
} +NiCt S
J`{o`>
vF[ 4kDHk
C++ <jM
{ <8-
#include <iostream> {:Kr't<XzF
3od16{YH
int main() 1i)3!fH0:
{ Oi-%6&}J
std::cout << "Hello, world!" << std::endl; GY^;$ ?
return 0; <num!@2D
} ~_g{P3
R-wz+j#
#5{BxX&\
C++/CLI k*Aee7
int main() 1083p9Uh
{ rI6+St
System::Console::WriteLine("Hello, world!"); H/={RuU
} $q.}eb0
(Fq:G) $
~03MH'
C# (C Sharp) 1xh7KBr,
class HelloWorldApp eg1F[~YL/
{ t`>Z#=cl\
public static void Main() @~UQU)-(
{ m
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System.Console.WriteLine("Hello, world!"); 9jM7z/Ff
} fc[_~I'
} )OVa7[-T
,H^!G\
}d;6.~Gw
COBOL y*v|q=
IDENTIFICATION DIVISION. ^Xu4N"@
PROGRAM-ID. HELLO-WORLD. !]RSG^%s{
f*9O39&|
ENVIRONMENT DIVISION. Fop +xR,Z
P|]r*1^5
DATA DIVISION. bX`Gv+
Uqy/~n-v<
PROCEDURE DIVISION. XD't)B(q
DISPLAY "Hello, world!". i"
)_Xb_1
STOP RUN. *c&|2EsZ
5C^@w
\xv(&94U
Common Lisp +%u3% }
(format t "Hello world!~%") e?*Teb?R
9cU9'r# h
R^P>yk8
DOS批处理 `Pc<0*`a
@echo off 5Z5x\CcC3
echo "Hello, world!" BMu Efa^
t8rFn
qMA-#
Eiffel cC+2%q B
class HELLO_WORLD _L$a[zH
={V@Y-5T
creation ,sL%Ykr
make ' VKD$q
feature Q~VM.G
make is ~(kqq#=s
local 8&|
o
io:BASIC_IO +}a(jO
do +@?'dw
!!io isQOt *
i
io.put_string("%N Hello, world!") y$SUYG'v
end -- make }2Euz.0
end -- class HELLO_WORLD &} `a"tYr
}(|gC,
wWiYxBeN
Erlang DL1nD5
-module(hello). L\E>5G;
-export([hello_world/0]). T,1qR:58
q!@!eC[b
hello_world() -> io:fwrite("Hello, World!\n"). >7%T%2N
b \ln XN
f17E2^(I(}
Forth qqf*g=f
." Hello, world!" CR M(LIF^'U:m
%xOxMK@
.hR
<{P
Fortran }X^MB
WRITE(*,10) NR1M W^R
10 FORMAT('Hello, World!') c {%mi
STOP H@?} !@
END XGH:'^o_
h\w;SDwOk
jYRSV7d
HTML ~ILv*v@m
<HTML> jS##zC
<HEAD> UGy3B)
<TITLE> Hello World! </TITLE> 1ruI++P
</HEAD> C9sU^]#F
<BODY> )Ak#1w&q
<p>Hello World!</p> /}8Au$nA
</BODY> GyN|beou
</HTML> <TtPwUX
": M]3.
tJrGRlB>
HQ9+ ]B=*p0~j^n
H xw
43P.
`@],J
EHm*~Sd
INTERCAL |<,qnf| -
PLEASE DO ,1 <- #13 4J_HcatOB
DO ,1 SUB #1 <- #238 @Xl(A]w%!
DO ,1 SUB #2 <- #112 8:V,>PH
DO ,1 SUB #3 <- #112 z}u`45W+
DO ,1 SUB #4 <- #0 vHcl7=)Q
DO ,1 SUB #5 <- #64 S*h^7?Bu
DO ,1 SUB #6 <- #238 x,25ROaHY
DO ,1 SUB #7 <- #26 }_zN%Tf~
DO ,1 SUB #8 <- #248 u0&R*YV
DO ,1 SUB #9 <- #168 =JzzrM|V*
DO ,1 SUB #10 <- #24 w+
!c9
DO ,1 SUB #11 <- #16 xOj#%;
DO ,1 SUB #12 <- #158 "gM!/<~
DO ,1 SUB #13 <- #52 v9:J 55x
PLEASE READ OUT ,1 MLHCBRi
PLEASE GIVE UP ;QXg*GNAv$
81{8F
C`i#7zsH
Java hHJvLs>^
public class Hello @u9L+*F
{ 5S!#^>_
public static void main(String[] args) !?JZ^/u
{ 0q"4\#4l
System.out.println("Hello, world!"); qP#LJPaS
} D r(0w{5
} JT0j2_*Rr
&@oI/i&0B
by
@q g:
JSP 'fU #v`i
<% -#f.}H'
out.print("Hello, world!"); /e>%yq<9B
%> #U`AK9rP_g
#17 &rizl
.>R`#@+I
MIXAL -z`FKej
TERM EQU 19 the MIX console device number ,M3hE/rb/
ORIG 1000 start address gdf0
START OUT MSG(TERM) output data at address MSG }jCO@v;
HLT halt execution q1:dcxR[
MSG ALF "MIXAL" S2'a i
ALF " HELL" yR>P
ALF "O WOR" HC$%"peN1b
ALF "LD " K{DC{yLu
END START end of the program #9|&;C5',!
C5dM`_3L
0QZT<Zs
Nuva rt*x[5<
<..直接输出..>
aO<7a
6
Hello, world! iuY,E
GO"|^W
<..或者..> )v;O2z
C7{VByxJ
<. S~aWun
// 不带换行 h<%$?h+}
? "Hello, world!" ulsU~WW7r
2QaE&8vW
// 或者 I9qZE=i
6a,8t
// 带换行 (%L/|F_
?? 'Hello, world!' h}SZ+G/L
.> >S:(BJMo
pCIS82L
`qhT
OCaml %9>w|%+;U+
let main () = 7!AyL w
print_endline "Hello world!";; F&wAre<
kMVr[q,MEq
o C|oh
Pascal 6m?<"y8]
program Hello; v>`Fo[c
begin _"
9 q(1
writeln('Hello, world!'); }lp37,
end. o.!o4&WH
As46:<!2
q3#[6!
Perl H};1>G4
#!/usr/local/bin/perl .hx(9
print "Hello, world!\n"; 8B*(P>
rB".!b
oH=?1~e
PHP 2ul8]=
<?php aC}\`.Kb
print("Hello, world!"); ."ZG0Zg
?> d?X,od6
[voZ=+/
$(D>v!dp
Pike F62 uDyY
#!/usr/local/bin/pike k( 0; >)<i
int main() _R ]s1
{ 5 I_ :7$8
write("Hello, world!\n"); Dazm8_x
return 0; p[P#!
} 9jI muSZ
n}a`|Nbk
-*mbalU,J
PL/I m"~ddqSMT
Test: procedure options(main); 7T[$BrO\
declare My_String char(20) varying initialize('Hello, world!'); GU>j8.
put skip list(My_String); 8D)1ZUx7`
end Test; 8:& !F`o
3H!]X M
}o:LwxNO
Prolog AI3x,rk#
goal FUL3@Gb$UV
write("hello,world!"). 8i[TeW"
DRm`y>.
%WU=Vy 4
Python WS[Z[O
#!/usr/local/bin/python O=bkq}
print "Hello, world!" yJ!26
GY?u+|Q
8WV5'cX
REXX 05H:ZrUV
say "Hello, world!" pv0|6X?J"
;MGm,F,o
2 %fcDEG/
Ruby -KC@M
#!/usr/bin/ruby yn!;Z._
print "Hello, world!\n" "=DQ { (L
/#T {0GBXe
;O)*!yA(GG
Scheme (.=Y_g.
(display "Hello, world!") KH#z =_
(newline) ;N.dzH2yA
`r1j>F7Xb
uT=r*p(v
sed (需要至少一行输入) kO}%Y?9d
sed -ne '1s/.*/Hello, world!/p' ZgEV-.>P
pBe1:
fUf1G{4
Smalltalk 95IP_1}?
Transcript show: 'Hello, world!' 5)Z=FUupA~
I*%3E.Z@g
<m \Y$Wv
SNOBOL %0y-f
OUTPUT = "Hello, world!" rPy,PQG2w
END +mBS&FK
HgW!Q(*
O1jiD_Y!9
SQL O9N!SQs80
create table MESSAGE (TEXT char(15)); K?,?.!ev
insert into MESSAGE (TEXT) values ('Hello, world!'); 4 ;_g9]
select TEXT from MESSAGE; *J^FV^E``
drop table MESSAGE; ~6t<`&f
Qa/1*Mb
KsIHJr7-
Tcl f{2UL ?y
#!/usr/local/bin/tcl tH; 6Mp;f
puts "Hello, world!" h{"SV*Xpk/
o% Q7 el$f
A?04,l]y
TScript >a*dI_XE
? "Hello, world!" LkHH7Pd@
.s"Og;g
i{N?Y0YQs0
Turing LsI@_,XW<
put "Hello, world!" "
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XBX`L"0
WYRC_U7
UNIX-style shell @?J7=}bzz
程序中的/bin/sh可改为您使用的shell A-m IWTa
Z2*?a|3
#!/bin/sh %VB4/~ "
echo 'Hello, world!' A#']e 8
19[o XyFI
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GUI *ze/$vz-
"D>/#cY1/
Delphi _~tF2`,Y_p
program HelloWorld; f
uU"
uses \kKd:C{
Dialogs; 8[,R4@
begin Rf)|p;
ShowMessage('Hello, World!'); q;QasAQS`p
end. #X``^
s^6,"C
' xaPahx;
Nuva L Y4bn)Qf
<. @N[<<k7g
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 4W2.K0Ca
.> % &H^UxC
6b2h\+AP
dg*xo9Xi`
Visual Basic /g%RIzgW
MsgBox "Hello, world!" jR:\D_:
'或者 5cM%PYU4:v
Print "Hello, world!" ;B2kot7
3NZK$d=4
-;6uN\gq
Visual FoxPro \I6F;G6
? "Hello, world!" "ivVIq2
ldU ><xc2
uk WL3
X11 .i?{h/9y
用一个程序 ~ [/jk !G
('uUf!h?\
xmessage 'Hello, world!' W:j9 KhvT
kuLur)^
用C++和gtkmm 2 }9B},
T^+K`U
#include <iostream> vd^Z^cpip
#include <gtkmm/main.h> E*tT^x)
#include <gtkmm/button.h> %RwWyzm#\
#include <gtkmm/window.h> pcOKC 0b.
using namespace std; &.yX41R
afaQb
class HelloWorld : public Gtk::Window (}T},ygQ
{ MYxuQ |w
public: =<#++;!I
HelloWorld(); d'Dd66
virtual ~HelloWorld(); T8*;?j*@
protected: pFu!$.Fr
Gtk::Button m_button; 4u0?[v[Hu
virtual void on_button_clicked(); r-WX("Vvh
}; #U3q
+d+^
@3b @]l5
HelloWorld::HelloWorld() : m_button("Hello, world!") )VG>6x
{ EN}4-P/5
set_border_width(10); y'oH>l+n
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); 48;b
add(m_button); lFA-T I&
m_button.show(); 8OS^3JS3"
} 8/P!i2o
5[*8CY
HelloWorld::~HelloWorld() {} Z;R/!Py.
+>Y]1IlI
void HelloWorld::on_button_clicked() V=>]&95-f
{ 7;6'=0(
cout << "Hello, world!" << endl; l8%BRG
} gCL}Ba
t!FC) iY
int main (int argc, char *argv[]) BG4TUt
{ I&^hG\D
Gtk::Main kit(argc, argv); Kj?hcGl[
HelloWorld helloworld; ZRr.kN+F
Gtk::Main::run(helloworld); 8{&.[SC7
} g>b{hkIXg
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