“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。 nX8ulGG s
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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》。 2?:'p[z"]
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以下是用不同语言写成的Hello World程序的几个例子: ,s/laZ)V
Ada v>_83P`
with Ada.Text_Io; use Ada.Text_Io; 8~3I^I_v
procedure Hello is G+<id1
begin `>
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Put_Line ("Hello, world!"); Q=Liy@/+!
end Hello; m]c1DvQb
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03"FK"2S
汇编语言 .@$A~/ YU
ay]l\d2!3
x86 CPU,DOS,TASM 5..YC=_20
MODEL SMALL tl`x/
IDEAL zR)/h
STACK 100H D;[%*q*
/4|_A {m{m
DATASEG
\UZ7_\
HW DB 'Hello, world!$' @76I8r5l
^fmuBe}d{
CODESEG $i1:--~2\
MOV AX, @data G!o6Y:1!
MOV DS, AX I@TH^8(
MOV DX, OFFSET HW \["I.gQ
MOV AH, 09H Wl}J=
INT 21H ;te( {u+
MOV AX, 4C00H 0[ (kFe
INT 21H D[)_
f
END F<Xtp8
bz.sWBugR
59i2*<k
x86 CPU,GNU/Linux,NASM PcjeuJZ
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). `U&'71B^
;Enter this into "hello.asm" then type: 1L?d/j
;"nasm -f elf hello.asm" 3#y`6e=5
;"ld hello.o -o hello" ,aIkiT
;"./hello" `G%h=rr^c
%evtIU<h
section .data ;data section declaration *X^C+F
msg db 'Hello World!',0AH A5Q4wy`
len equ $-msg ;string length x,|fblQz
{
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section .text ;code section declaration C_yNSD
global _start ;entry point (start of execution) oDayfyy4y)
_start: mov edx,len ;string length |9X2AS Qu
mov ecx,msg ;string start `?SC.KT
mov ebx,1 ;file handle: stdout tH#t8Tq5x
mov eax,4 ;sys_write HMDuP2Y
int 80h ;kernel system call ^# 4e_&4
^f9@=I
mov ebx,0 ;return value /:"^,i\t
mov eax,1 ;sys_exit AGKT* l.-
int 80h ;kernel system call g:@4/+TSt
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;aD?BD__Z
x86 CPU,Windows,MASM32 .{|SKhXk
.386 FR>[g`1
.model flat,stdcall /U-+ClZi@
option casemap:none ?FwHqyFVlQ
;Include 文件定义 L
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include windows.inc mA"[x_
include user32.inc piqh7u3~
includelib user32.lib Y#6LNI
include kernel32.inc {?"X\5n0
includelib kernel32.lib XVb9)a
;数据段 L-9;"]d~|
.data i0*Cs#(=h
szCaption db 'A MessageBox!',0 T Qx<lw
szText db 'Hello,world!',0 57O|e/2
;代码段 T3LVn<Lm\
.code *`LrvE@t
start: 0d1!Q!PH3
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK S!b?pl
invoke ExitProcess,NULL
p.b#RY
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 2
/*z5
end start sB$" mJ
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m(D-?mhL
AWK sH'0utD#Y
BEGIN { print "Hello, world!" } IiJ$Ng
$&1D l
3to!C"~\K-
BASIC wG6Oz2(
传统版BASIC(例如GWBASIC): pred{HEye
h:sf?X[
10 PRINT "Hello, world!" ,H8M.hbsQ
20 END b80&${v
/I{K_G@
或在提示符输入: 8&3&^!I
f(5;Rf(
?"Hello, world!":END esq~Ehr=
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现代版BASIC(例如Quick BASIC): 3\{\ al
IO]tO[P#
Print "Hello, world!" Qwve-[
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以下的语句在Quick BASIC中同样有效: X*w;6 V
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? "Hello,world!" `Q#)N0
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Ye$;
d ~
BCPL -$Kc"rX
GET "LIBHDR" g9NE>n(3
s@GE(Pu7
LET START () BE yeBfzKI{b
$( XsDZ<j%x89
WRITES ("Hello, world!*N") Ts3!mjn
$) "5'eiYms
O*!f%}
27,c}OS5o
Befunge 7I@df.rf6J
"!dlrow olleH">v {v|ib112;
, F! Cn'*
^_@ og~a*my3
3x7fa^umR
5rc3jIXc{|
Brainfuck _n{_\/A6f
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< UEt78eN
+++++++++++++++.>.+++.------.--------.>+.>. -#R`n'/
`T{CB) ?9
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C _[i.)8$7
#include <stdio.h> dw!Xt@,[g{
' o*\N%
int main(void) q/Ji}NGm
{ >j*0fb!:]
printf("Hello, world!\n"); s{{8!Q
return 0; 'tcve2Tt
} ~66v.`K!
A f!`7l-
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C++ ]YfG`0eK<
#include <iostream> .IVKgQ
B
*uP;rUY
int main() x]?V*Jz
{ <eP,/H
std::cout << "Hello, world!" << std::endl; Uovna:"
return 0; 1zw,;m n
} tFX<"cAvK
=<)/lz] H
(l9jczi
C++/CLI >Q ^ mR
int main() <P&X0S`O
{ [eBt Dc*w
System::Console::WriteLine("Hello, world!"); Evqy e;
} xj&~>&U){;
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2PUB@B'
+
C# (C Sharp) [;4ak)!
class HelloWorldApp I9rQX9#B
{ Z#[%JUYp'
public static void Main() +ZGH
{ yx6^ mis4
System.Console.WriteLine("Hello, world!"); `[XH=-p
} n "^rS}Y]
} 1vCp<D9<
0(9gTxdB
w@O)b-b|w
COBOL ;`kOFg#`)c
IDENTIFICATION DIVISION. S4_ZG>\VT
PROGRAM-ID. HELLO-WORLD.
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zV;NRf)
9.
ENVIRONMENT DIVISION. p]?eIovi
Dq9f Fe
DATA DIVISION. hkV*UH{
W<[7LdAB
PROCEDURE DIVISION. o8IqO'
DISPLAY "Hello, world!". 5p:2gsk
STOP RUN. 'O9Yu{M
~k?t
dl |$pm@x
Common Lisp h.Sbds
(format t "Hello world!~%") s|Vs#o.P)
dVGcth;
Z=%u:K}[
DOS批处理 K|6}g7&X
@echo off e8egxm
echo "Hello, world!" bNtOqhi
kkj@!1q(wO
>yqEXx5{
Eiffel Wf%)::G*uR
class HELLO_WORLD (Ia:>ocE0
QfM^J5j.M?
creation z&um9rXR
make a8%T*mk(
feature +|K,\
{'U
make is 8{{^pW?x
local aO9\8\^
io:BASIC_IO N[O_}_
do Do^yer~
!!io -xJ\/"A
io.put_string("%N Hello, world!") upJy,|5
end -- make 7)Tix7:9S;
end -- class HELLO_WORLD #^ .G^d(=
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j.+,c#hFo
Erlang Et}%sdS
-module(hello). #.Ly
-export([hello_world/0]). 4"{g{8
>qGWDCKr
hello_world() -> io:fwrite("Hello, World!\n"). 20` XklV
~{kA;uw
>SYOtzg%
Forth je>gT`8
." Hello, world!" CR @wP.Rd
;;U&mhz`
ZX{eggXl
Fortran FgPmQ
WRITE(*,10) C)9-{Yp
10 FORMAT('Hello, World!') a"1LF`
STOP miCY?=N`
END F0r5$Pl*
@e7_&EGR?
TLVfu4
HTML xcJvXp
<HTML> [ei5QSL |
<HEAD> I9U
8@e!X
<TITLE> Hello World! </TITLE> q zo)\,
</HEAD> `<Hc,D; p
<BODY> x0TE+rf5
<p>Hello World!</p> Gt !Hm(
</BODY> a{?>F&vnU
</HTML> o+R(ux"
ypfjF@OT
W>P :EI1
HQ9+ 3z8zZ1uzU
H l|9'l[}&
+,D82V7S
WCp[6g&%O
INTERCAL >S?7-2X
PLEASE DO ,1 <- #13 kaDn=
={YM
DO ,1 SUB #1 <- #238 jd
8g0^
DO ,1 SUB #2 <- #112 &N%-.&t'
DO ,1 SUB #3 <- #112 eMH\]A~v"
DO ,1 SUB #4 <- #0 C{ Z*5)
DO ,1 SUB #5 <- #64 (hv}K*c{
DO ,1 SUB #6 <- #238 kQ)2DCbdn
DO ,1 SUB #7 <- #26 ^4saB+qm
DO ,1 SUB #8 <- #248 pcm1IwR`
DO ,1 SUB #9 <- #168 qEkhgJqk
DO ,1 SUB #10 <- #24 O9{A)b!HB
DO ,1 SUB #11 <- #16 8R;E+B{
DO ,1 SUB #12 <- #158 FOcDBCrOe
DO ,1 SUB #13 <- #52 Ew9MWlk
PLEASE READ OUT ,1 >v%UV:7ap
PLEASE GIVE UP Yt4v}{+
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*I9G"R8
Java VC!g,LU|-
public class Hello b1ZHfe:
{ qEjsAL
public static void main(String[] args) 6|%HCxWO
{ Ax!fvcsN
System.out.println("Hello, world!"); 2L 1Azx
} 8}^ym^H|j
} hDEZq>&
]08~bL1Q
"xD5>(|^+Q
JSP !|Y&h0e
<% ?
5hwz
out.print("Hello, world!"); bHHR^*B
%> WS$~o*Z8
m(WVxVB
=E8Kacu%
MIXAL \<y#$:4r<8
TERM EQU 19 the MIX console device number z&[[4[
ORIG 1000 start address .:, 9Tf
START OUT MSG(TERM) output data at address MSG I]ol[
X0S
HLT halt execution s|"4!{It
MSG ALF "MIXAL" $I/RN
ALF " HELL" v/wR)9
ALF "O WOR" 061 f
ALF "LD " I,lzyxRP
END START end of the program An
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@
/bqJ6$
Nuva "S&1J8D|
<..直接输出..> }HZ'i;~r|9
Hello, world! nSU7,K`PM
W@FGU
<..或者..> ?T_hK
^#2Y4[@
<. WJ]g7!Ks
// 不带换行 :#W>lq@H
? "Hello, world!" 83"C~xe?p4
hM`*-+Zb
// 或者 /s`xPxvt
3-2?mV>5
// 带换行 hzX&BI
?? 'Hello, world!' B&H
[z
.> m^,3jssdA
wijY]$
%w6lNl
OCaml e9?y0vT//
let main () = UX<0/"0h
print_endline "Hello world!";; T}A{Xu*:+H
(%;D&
~%o
gJBk&SDgtP
Pascal cK+)MFOu+
program Hello; CB?H`R pC.
begin (fWQ?6[
writeln('Hello, world!'); g/soop\:
end. px_%5^zRQ
BRMR>
~k(
*r]#jY4qx
Perl ~w RozV
#!/usr/local/bin/perl [x|{VJ(h
print "Hello, world!\n"; &,`P%a&k
r.zJ/Tk
OAz-w
PHP \t@|-`
<?php T?FR@.
Rm
print("Hello, world!"); Rd*/J~TK
?> 3836Di:{
Cqk6I gw
Mxe
Pike %5H>tG`]
#!/usr/local/bin/pike YY<e]CriU
int main() Q /\Hc
{ b; 4;WtBO
write("Hello, world!\n"); 'GcZxF0
return 0; aG\B?pn-
} U
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mCx6$jz
Ok~\
PL/I zHCz[jlrMq
Test: procedure options(main); U=bZy,FT$
declare My_String char(20) varying initialize('Hello, world!'); 7e&%R4{b
put skip list(My_String); v<Ux+-
end Test; [t`QV2um
[VP~~*b
3^zOG2
Prolog %@FTg$
goal VIxcyp0X
write("hello,world!"). #65Uei|F`+
D}Lx9cL
RA+k/2]y!
Python /fc@=CO
#!/usr/local/bin/python 0qV!-i
print "Hello, world!" {GiR-q{t
Wc$1Re{z
Ie?C<(8Ul
REXX Z`b{r;`m8
say "Hello, world!" ^T|~L<A3
p( Q5!3C0q
_\LAWQ|M4[
Ruby vH#^ |u
#!/usr/bin/ruby r 6STc,%5
print "Hello, world!\n" +d736lLe%
Sc*O_c3D
Rj=xn(@d
Scheme pJ5Sxgv{;
(display "Hello, world!") &u_f:Pog
(newline) 6]^}GyM!
,tL<?6_
L[*Xrp;/&
sed (需要至少一行输入) I.\fhNxHY
sed -ne '1s/.*/Hello, world!/p' /^\6q"'
'DQKpk'
(v8jVbg
Smalltalk ]f q.r
Transcript show: 'Hello, world!' j{9sn,<:
xAD: Z"
nV%1/e"5
SNOBOL v7/qJ9l
OUTPUT = "Hello, world!" e? fFh,a
END K/jC>4/c/
wvA@\-.+
amIG9:-1'
SQL 7PZ0
create table MESSAGE (TEXT char(15)); rr#&0`]
insert into MESSAGE (TEXT) values ('Hello, world!'); Khxl'qj
select TEXT from MESSAGE; $R7n1
drop table MESSAGE; ?8n`4yO0
nrMm](Y45
DEL#MD!
Tcl *#,wV
#!/usr/local/bin/tcl aQaO.K2
puts "Hello, world!" u%S&EuX
yla&/K;|*
F%x8y
TScript j']m*aM1>
? "Hello, world!"
`'5(4j
(AdQ6eGM b
Q%(LMq4UG
Turing gYx|Na,+
put "Hello, world!" 0t1WvW
Y`3>i,S6\
wbzAX
UNIX-style shell
wEo/H
程序中的/bin/sh可改为您使用的shell %uyRpG3,
{|6(_SM|
#!/bin/sh l=ZhHON
echo 'Hello, world!' Dm[4`p@IY\
]w(i,iJ
A -G?@U
GUI >v`lsCGb
|b52JF
",
Delphi `Xnu("w)
program HelloWorld;
e@6<mir[4
uses Qj?FUxw
Dialogs; $z]gy]F
begin eqQA st#~
ShowMessage('Hello, World!'); m#mM2Guxe
end. !h{qO&ZH=
2`Xy}9N/Y
z)r)w?A
Nuva bH&Cbme90-
<. w3c[t~R8
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) DJ;G0*
.> TDdFuO'}
b}p 0&%I
}\B`tAN
Visual Basic hV/$6 8A_
MsgBox "Hello, world!" 7^h?<X\
'或者 *Y6BPFE*4
Print "Hello, world!" "*WzoRA={
`(?E-~#'
qIa|sV\w0
Visual FoxPro AxUj CerNf
? "Hello, world!" =u(. Y
EaG3:<>J
,Utp6X
X11 67Z|=B!7
用一个程序 .
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>z1RCQWju
xmessage 'Hello, world!' &)O X*y
H3}{]&a
用C++和gtkmm 2 0x'>}5`5
?ZDXT2b~~
#include <iostream> pm,&