“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。 Xl:.`{5L
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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》。 TKQ^D
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以下是用不同语言写成的Hello World程序的几个例子: "T*1C=
Ada #r/5!*3
with Ada.Text_Io; use Ada.Text_Io; KciN"g|X
procedure Hello is t37<<5A
begin N>CNgUyP
Put_Line ("Hello, world!"); `Tei
end Hello; *Nfotv
'S|7<<>4k
U }AIOtUw
汇编语言 IJVzF1vC
4)8e0L*[B?
x86 CPU,DOS,TASM G1\F7A
MODEL SMALL 10)RLh|+
IDEAL FmFjRYA W
STACK 100H "l hj1zZ
|>OBpb
DATASEG 9s*QHCB0
HW DB 'Hello, world!$' zXU
g( xu
@AM11v\:
CODESEG i]OEhB
Y
MOV AX, @data {pA&Q{ ^
MOV DS, AX PT
}J.Dwx
MOV DX, OFFSET HW q!W=U8`
MOV AH, 09H w!z*?k=Da
INT 21H c2Exga_
MOV AX, 4C00H /]U;7)
INT 21H ,FXc_BCx4
END V]GF53D
E-($Xc
3,K\ZUU.,
x86 CPU,GNU/Linux,NASM dPbn[*:
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). $7W5smW/
;Enter this into "hello.asm" then type: !v(^wqna\
;"nasm -f elf hello.asm" cGR) $:
;"ld hello.o -o hello" "LJV}L
;"./hello" \.}ZvM$
2W`WOBz
section .data ;data section declaration 4HR36=E6
msg db 'Hello World!',0AH k5J18S
len equ $-msg ;string length FJ4,|x3v[x
e!o\AB%d
section .text ;code section declaration \#WWJh"W
global _start ;entry point (start of execution) wy8Q=X:vP
_start: mov edx,len ;string length Z4c'1-lh
mov ecx,msg ;string start }2;iIw`
mov ebx,1 ;file handle: stdout aSu^
mov eax,4 ;sys_write /zb/am1#
int 80h ;kernel system call S,ea[$_
^,mN-.W
mov ebx,0 ;return value KO~KaN
mov eax,1 ;sys_exit 1G.?Y3DC<
int 80h ;kernel system call 09trFj$L
+/l@ou'
Dr(2@0P
x86 CPU,Windows,MASM32 vd(S&&]o1
.386 ?|/K(}
.model flat,stdcall JN4gH4ez)
option casemap:none I.G[|[. Do
;Include 文件定义 4hLk+ z<n
include windows.inc a/J Mg
include user32.inc M_Q`9
includelib user32.lib hc[J,yG
include kernel32.inc c*.
includelib kernel32.lib Q{?\qCrrYl
;数据段 LU+SuVm
.data 8Iu6r}k?~`
szCaption db 'A MessageBox!',0 o $W@@aM
szText db 'Hello,world!',0 2oV6#!{Z
;代码段 r~YBj>}
.code LAo$AiTUR{
start: f<iK%
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK |>.MH
invoke ExitProcess,NULL 9#:fQ!3`
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> @&`^#pok
end start pe0ax-Zv
ZS4dW_*[
Q~qM;l\i
AWK A[^#8evaK
BEGIN { print "Hello, world!" } R!QR@*N
dsx<ZwZN>
fS/:OnH
BASIC Zi+F IQ(
传统版BASIC(例如GWBASIC): }4!}vkVx
!-^oU"
10 PRINT "Hello, world!" JDZuT#
20 END 3@\/5I xn
d^nO&it
或在提示符输入: &V$cwB
8y<.yfgG
?"Hello, world!":END Zv!XNc!"$y
\%Y`>x.
现代版BASIC(例如Quick BASIC): nRB3VsL
]r3/hDRDL@
Print "Hello, world!" YW6a?f^!
s|A[HQUtJ
以下的语句在Quick BASIC中同样有效: 1E
/G+pm
^pd7nr~Y
? "Hello,world!" }DM W,+3
}Vob)r{R@
]s0wJD=
BCPL ;lb
GET "LIBHDR" ;YY<KuT
<(@S;?ZEW
LET START () BE \ui'~n_t]
$( y3b"'-%
WRITES ("Hello, world!*N") 3{|~'5*
$) WwTl|wgvyI
(|Gwg \r
gAorb\iJ
Befunge _,60pr3D'
"!dlrow olleH">v u8KQV7E
, !KOa'Ic$V
^_@ IMbF]6%p(
Be@g|'r
rZpsC}C'
Brainfuck }=R0AKz!Cv
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< Mz(?_7
+++++++++++++++.>.+++.------.--------.>+.>. n.8870.BW
y*X.DS 1(w
.rO~a.kG
C C=r`\W
#include <stdio.h> }"WovU{*s
DoFe:+_U3
int main(void) mxF+Fp~
{ )@I] Rk?
printf("Hello, world!\n"); [<U=)!Swg
return 0; R[l`# I
} 4(P<'FK $
~A5NseWCK
o96c`a u
C++ eq%cRd]u
#include <iostream> :Ob^b3<t
qGV(p}$O
int main() 8g)$%Fy+N
{ CQ. C{
std::cout << "Hello, world!" << std::endl; M0lJyzJ
return 0; h_P[B
} oqh@(<%
bws}'#-*
am3.Dt2\
C++/CLI iOhX\@&
int main() 24 [cU
{ !ck~4~J
System::Console::WriteLine("Hello, world!"); f?=0Wzb
} n_]B5U
PR!0=E*}
h@*I(ND<
C# (C Sharp) G)NqIur*Z
class HelloWorldApp n(# yGzq
{ ltkARc3
public static void Main() YKU|D32
{ +RM!j9Rq
System.Console.WriteLine("Hello, world!"); X,G"#j^
} Z]{=Jy!F
} 2^`k6V!
vs+aUT C\
G#`
COBOL h {J io>
IDENTIFICATION DIVISION. 2 f%+1uU
PROGRAM-ID. HELLO-WORLD. p ]jLs|tat
6
F 39'
ENVIRONMENT DIVISION. <w*WL_P
0S>L0qp
DATA DIVISION. 0/|Ax-dK
(U$;0`
PROCEDURE DIVISION. gzvgXZ1q"
DISPLAY "Hello, world!". h,&{m*q&
STOP RUN. /3hY[#e
#b)`as?!1
l+&DBw[
Common Lisp bFL2NH5
(format t "Hello world!~%") +Tx_q1/f5X
P{%Urv{U
F/LMk8RgR
DOS批处理 -~JYfj@
@echo off b|E ZD3y
echo "Hello, world!" $.w$x1
3Ur_?PM+C
!fe_w5S^
Eiffel Fkpaou
class HELLO_WORLD 5wAKA`p"z
p{ZyC
creation 3'i(wI~<[
make ,H.5TQ#
feature 8Ed axeDq
make is b+arnKo1fk
local %;u"2L0@
io:BASIC_IO j+
L:Ao
do tEo-Mj5:
!!io :HrFbq
io.put_string("%N Hello, world!") ?tqJkL#
end -- make ~UeTV?)
end -- class HELLO_WORLD [.Fq
l+
W)T'?b'.
FZ]+(Q"]:
Erlang Eld[z{n"
-module(hello). #+U1QOsz
-export([hello_world/0]). gE^pOn
L{r 4hL [
hello_world() -> io:fwrite("Hello, World!\n"). / bH2Z
W4k$m2
t18j2P>`
Forth Os9EMU$
." Hello, world!" CR KDGrX[L:6
?mK&Slh.
[dFcxzM-N
Fortran -Edy ~;_
WRITE(*,10) kF,ME5%
10 FORMAT('Hello, World!') Oi^cs=}
STOP u=]*,,5<
END 0QfDg DX
Jn|i!
XSK<hr0m
HTML &hL2xx=
<HTML> 8>x'. 8
<HEAD> M&faa7
<TITLE> Hello World! </TITLE> 7
wEv`5
</HEAD> P3=#<Q.
<BODY> >35w"a7S
<p>Hello World!</p> ZPb30M0
</BODY> >!']w{G
</HTML> @^-Y&N!b=
w3>11bE
7D:rq 8$\
HQ9+ L'aB/5_%
H lic-68T
kMnG1K
^_P?EJ,)`
INTERCAL TKsP#Dt/
PLEASE DO ,1 <- #13 g:y4C6b
DO ,1 SUB #1 <- #238 h qjjd-S0
DO ,1 SUB #2 <- #112 {}Is&^3Z
DO ,1 SUB #3 <- #112 q<z8P;oP^
DO ,1 SUB #4 <- #0 c@}t@k
DO ,1 SUB #5 <- #64 zYY]+)k?
DO ,1 SUB #6 <- #238 6hYz^}2g
DO ,1 SUB #7 <- #26 6g"h}p\{S
DO ,1 SUB #8 <- #248 >.K%W*t
DO ,1 SUB #9 <- #168 ?fq!BV
DO ,1 SUB #10 <- #24 g%[:wjV;
DO ,1 SUB #11 <- #16 &<uLr
*+*
DO ,1 SUB #12 <- #158 hf2bM
`d
DO ,1 SUB #13 <- #52 CZeZk
PLEASE READ OUT ,1 o}/|"(K
PLEASE GIVE UP 7t<MHdw
GQ@mQ=i
L)F4)VL
Java ^5TVm>F@3
public class Hello .o/uA
{ - PSgBH[
public static void main(String[] args) pXN'vP
{ qA`@~\qh"
System.out.println("Hello, world!"); ysIhUpd
} "uIaKb
} 1kL8EPT%o
{xov8M
(y.N-I,
JSP T9Juq6|
<% { ,c*OR
out.print("Hello, world!"); h
ka_Fo
%> kln)7SzPuk
>&S}u\/
Q]N&^ E
MIXAL _\tv ${
TERM EQU 19 the MIX console device number EUcD[Rv
ORIG 1000 start address kV?fie<\)
START OUT MSG(TERM) output data at address MSG [*zg? ur
HLT halt execution }a~hd*-#
MSG ALF "MIXAL" 2 Kjd!~Z$
ALF " HELL" pUqC88*j
ALF "O WOR" +8N6tw/&
ALF "LD " 1a{r1([)
END START end of the program 9+N%Io?!
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-2J37
Nuva OmBz'sp:
<..直接输出..> o|z@h][(l(
Hello, world! U6@c)_* <
' :B;!3a0d
<..或者..> jUA~}DVD
MU
a[}?
<. }p2iF2g9`
// 不带换行 ~d]v{<3
? "Hello, world!" }5oI` 9VT
4{zy)GE|W
// 或者 >rEZ$h
3_XLx{["'
// 带换行 7mMGH(
?? 'Hello, world!' (wZ!OLY%}
.> <nbklo
pz['o
e
c]kt'
OCaml 70 R6:
let main () = <L qJg
print_endline "Hello world!";; Ei @
{j>a_]dTVX
9Tt%~m^
Pascal sS}:O d
program Hello; NLL"~
begin g-d{"ZXd J
writeln('Hello, world!'); d%'#-w'
end. T@yQOD7
JnBc@qnP6
<<MpeMi
Perl IXa~,a H71
#!/usr/local/bin/perl d0I s|Gs
print "Hello, world!\n"; Ex
p?x
(cLK hn@
Y%"$v0D
PHP F:ycV~bE
<?php =figat
print("Hello, world!"); wCLniCt
?> $oQOOa@;i)
:wIA.1bK}
o[!o+M
Pike o-RZwufZ`
#!/usr/local/bin/pike w ea
int main() F-|DZ?)k5
{ .2JZ7
write("Hello, world!\n"); >]~581fYf
return 0; G^)]FwTs
} }5vKQf
~wW]ntZm
hTLf$_|P
PL/I )?[7}(4jI
Test: procedure options(main); f<bB= 9J
declare My_String char(20) varying initialize('Hello, world!'); fW2NYQP$:
put skip list(My_String); ek]JzD~w$
end Test; ]}g\te
lot`6]
)4uWB2ZRoi
Prolog EX{%CPp7}
goal cF15Mm2
write("hello,world!"). - nNKUt.I
<Y"RsW9
OoA!N-Q
Python /W,hOv
#!/usr/local/bin/python
6NV592
print "Hello, world!" Lf%3-P
W'vek uM
jq)Bj#'7
REXX H[KX xNYZ_
say "Hello, world!" 4Y59^
eWv:wNouk
QO;Dyef7b
Ruby 1<m`38'
#!/usr/bin/ruby (k!7`<k!Y
print "Hello, world!\n" H1U$ApD
[&99#7B
OlyW/hd
Scheme >A{Dpsi\
(display "Hello, world!") D1y`J&A>Q
(newline) ?X|q
_0Ea 3K
|Yw k
sed (需要至少一行输入) O
MQ?*^eA
sed -ne '1s/.*/Hello, world!/p' ^9,^BHlC0
Zm*d)</>
Ti)Me-g
Smalltalk )e0kr46
Transcript show: 'Hello, world!' ]
hK}ASC
)I*(yUj
&mtt,]6C_
SNOBOL 6ZE`'pk<
OUTPUT = "Hello, world!" J(}PvkA
END A^).i_
!aUYidd
AmIW$(Ce
SQL yH"i5L9
create table MESSAGE (TEXT char(15)); KS(H_&j
insert into MESSAGE (TEXT) values ('Hello, world!'); }y*D(`
select TEXT from MESSAGE; A{\?]]/
drop table MESSAGE; pqO0M]}
!{+CzUo@
dz+!yE\f$
Tcl AH n!>w,
#!/usr/local/bin/tcl GFLat
puts "Hello, world!" ?l%4
P5
9NwUXh(:(
nxhlTf>3
TScript P]n0L4c
? "Hello, world!" 8>WA5:]v
IH=$
wc
BAXu\a-C_
Turing hO[_ _j8
put "Hello, world!" {Ni]S$7
;SI (5rS?
swZi
O_85
UNIX-style shell uz+WVmb
程序中的/bin/sh可改为您使用的shell V~*>/2+
L}{3_/t
#!/bin/sh )B
$Q
echo 'Hello, world!' #z >I =gl
=&08s(A
!0hyp |F:>
GUI U -OD
F%a&|X
Delphi !;8Y?c-D
program HelloWorld; RuYIG?J=/
uses
)nf%S+KV
Dialogs; 6bUP]^d
begin _+9i
ShowMessage('Hello, World!'); ^_3Ey
end. Gr\jjf`
`},:dDHI
hd'fWFWN
Nuva V0{#q/q
<. Drtg7v{@\
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) %T>@Ldt
.> ?jfh'mCA
]Xa]a}[uE
Epp>L.?r
Visual Basic oQh;lb
MsgBox "Hello, world!" kwUUvF7w
'或者 7.VP7;jys
Print "Hello, world!" `:7r5}(^
n:40T1:q
\?v&JmEU
Visual FoxPro ~SBW`=aP}
? "Hello, world!"
Txo{6nd/
{J1rjrPo
KB~1]cYMp
X11 :_i1gY)
用一个程序 )|v du
mY"Dw^)
xmessage 'Hello, world!' yx`@f8Kr
*0,*F ~n
用C++和gtkmm 2 4w%hvJ
=>PX~/o
#include <iostream> SE(<(w
#include <gtkmm/main.h> z^gz kXx7
#include <gtkmm/button.h> P\WHM(
#include <gtkmm/window.h> .T8^>z1/\F
using namespace std; M6MxY\uM
*g}==o`
class HelloWorld : public Gtk::Window bny@AP(CY+
{ hU(
public: < q(i(%
HelloWorld(); bZWR.</
virtual ~HelloWorld(); jS3@Z?x?*
protected: B> i^ w1
Gtk::Button m_button; O<!^^7/h0
virtual void on_button_clicked(); Z{(Gib~{N
}; ( AA@sN
UE_>@_T
HelloWorld::HelloWorld() : m_button("Hello, world!") zB y%$5~Fw
{ `,pBOh|'
set_border_width(10); (.oDxs()I
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); ~qb?#IY]`
add(m_button); 0j;|IU\
m_button.show(); W{ozZuo
} `$ bQ8$+Ci
)r A\+XT7
HelloWorld::~HelloWorld() {} |'i ?o
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