“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。 .VV!$;
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将Hello World程序作为第一个学写的程序,现在已经成为一种传统。该程序最早出现在由Brian Kernighan和Dennis Ritchie写的计算机程序设计教程《C语言程序设计》。 oU6g5
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以下是用不同语言写成的Hello World程序的几个例子: K%@SS8!oy
Ada f3&//h8
with Ada.Text_Io; use Ada.Text_Io; +f~3FXM
procedure Hello is ^]K)V
begin zL{@LHP
Put_Line ("Hello, world!"); g5'bUYsa
end Hello; ^IZ0M1&W;
AR2+W^aM3
WkmS
汇编语言 :Fk&2WsW:
90I3_[Ii
x86 CPU,DOS,TASM yUlQPrNX
MODEL SMALL t`D@bzLC%
IDEAL f}uCiV!?v
STACK 100H Bnc
tHo/uW_~I
DATASEG c8W=Is`
HW DB 'Hello, world!$' R-|]GqS}L
P"VLGa
CODESEG )y Y;%
MOV AX, @data a"N_zGf2$
MOV DS, AX 2UJ0%k
MOV DX, OFFSET HW : \`MrI^
MOV AH, 09H =l_"M
INT 21H Q)dns)_x
MOV AX, 4C00H CK#PxT?"
INT 21H AYerz
END 2}#PDhn
X28WQdP,7
sbIhg/:ok
x86 CPU,GNU/Linux,NASM ZU6a
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 4<HJD&@V
;Enter this into "hello.asm" then type: MM7gMAA.mz
;"nasm -f elf hello.asm" o8"xoXK5xf
;"ld hello.o -o hello" 4x>e7Kf
;"./hello" 3xY]Lqwv
_P+|tW1
section .data ;data section declaration W%:zvqg
v
msg db 'Hello World!',0AH f>PU# D@B
len equ $-msg ;string length '^AXUb
(J#3+I
section .text ;code section declaration 4 ETVyK|
global _start ;entry point (start of execution) Kj5f:{Ur
_start: mov edx,len ;string length *a@UV%u
mov ecx,msg ;string start )9,"~P2[R
mov ebx,1 ;file handle: stdout Hn.UJ4V
mov eax,4 ;sys_write `Nr7N#g+u
int 80h ;kernel system call Qgi:q
"+_0idpF
mov ebx,0 ;return value 6<6_W#
mov eax,1 ;sys_exit iDN,}:<V
int 80h ;kernel system call Grv|Wuli
m#p^'}]!;
[V~bo/n
x86 CPU,Windows,MASM32 |-<L :%
.386 ["9$HL
.model flat,stdcall ('oUcDOFTS
option casemap:none J ASn\z
;Include 文件定义 C I0^eaFs
include windows.inc Czn7,KE8X
include user32.inc 4v$AM8/o
includelib user32.lib i{0_}"B
include kernel32.inc :r=_\?
includelib kernel32.lib 'Mtu-\
;数据段 f{oWd]eAhb
.data =)LpMTz
szCaption db 'A MessageBox!',0 {5`?0+
szText db 'Hello,world!',0 =7>~u
;代码段 l{g(z!
.code st>t~a|T
start: =uTV\)
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK 4dAhJjhgD
invoke ExitProcess,NULL f|)t[,c
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ~Otf
" <
end start sjGZ
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7\lb+^$
HVpaVM
AWK 6h%(0=^
BEGIN { print "Hello, world!" }
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Yn/-m
Z
DEhA8.v
BASIC |Rc#Q<Vh|
传统版BASIC(例如GWBASIC): Tc:`TE=2
&2J|v#$F
10 PRINT "Hello, world!" '
r/1+.
20 END WDq3K/7\
-M}iDBJx>#
或在提示符输入: AH+J:8k
0Og =H79<
?"Hello, world!":END I6_+3}Hm{
C'#:}]@E
现代版BASIC(例如Quick BASIC): kLP^q+$u)!
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Print "Hello, world!" ej `$-hBBV
t~Ax#H
以下的语句在Quick BASIC中同样有效: fz*6 B NJ
kCV OeXv
? "Hello,world!" $9/r*@bu8d
@,vSRns
T7`Jtqf
BCPL \T?O.
GET "LIBHDR" V'B 6C#jT
e9hQJ
1{)x
LET START () BE s#ykD{Z
$( *0@e_h
WRITES ("Hello, world!*N") /VQ<}S[k}-
$) ge|}'QKow
4kiu*T
eJ'ojc3
Befunge t@\0$V
\X
"!dlrow olleH">v p5\b&~
g
, NbdaP{{
^_@ p|%)uA3'/
qM)^]2_-
/+iaw~={"
Brainfuck SL*(ZEn"
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< OA;L^d
+++++++++++++++.>.+++.------.--------.>+.>. =0Mmxd&o=M
F`l1I=;
Nf1l{N
C VQyDd~Za
#include <stdio.h> uB
BE!w_
G+ToZ&f@
int main(void) e=U7w7(s9
{ %/7`G-a.B
printf("Hello, world!\n"); B^
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return 0; @({65 gJ*
} 1<*-,f
0(n/hJ
N^)OlH
C++ ZHT.+X:_
#include <iostream> &^Io\
H5n"!!
int main() Q["}U7j
{ 4D8q Gti
std::cout << "Hello, world!" << std::endl; f`Nu]#i
return 0; :Vg,[\I{
} J<2N~$
]du pU"VV
"-9YvB#
C++/CLI ^>>Naid
int main() ?Gb
18m
{ li'#< "R?'
System::Console::WriteLine("Hello, world!"); Z1&8U=pax
} \6o
~ i
M:A7=rO~
8p5u1 ;2
C# (C Sharp) <B)lV'!Bd
class HelloWorldApp I$YF55uB
{ n%Fa;!S
public static void Main() ,,?t>|3
{ a}yJ$6xi
System.Console.WriteLine("Hello, world!"); {x+jFj.
} %!@Dop/<
} 1.+MX(w
qhogcAvE
?D#Vh a
COBOL a 3HS!/
IDENTIFICATION DIVISION. 2`;
0y M
PROGRAM-ID. HELLO-WORLD. 1\1o65en
mesR)fTI
ENVIRONMENT DIVISION. 2a{eJ89f
>q`G?9d2
DATA DIVISION. f@yST z;u
RtSk;U1
PROCEDURE DIVISION. rHMsA|xz6
DISPLAY "Hello, world!". jYU#]
|k~
STOP RUN. VB Ce=<
`.n[G~*w~1
E@?jsN7
Common Lisp "`lRX
(format t "Hello world!~%") # H4dmnV
PS>k67sI
ex-`+cF
DOS批处理 2D
"mq~V
@echo off ^uYxeQY[
echo "Hello, world!" ~q<UE\H
[Ga9^e$Zv
_9<Ko.GVq
Eiffel 3]wV`mD
class HELLO_WORLD Od!j+.OY<
;yH/GN#O
creation ?R";EnD
make vsc&$r3!5{
feature C; ! )<(Vw
make is |XeuqZa
local zdr?1=
io:BASIC_IO 7.]ZD`"Bb
do gbF.Q7?$u
!!io 67d0JQTu
io.put_string("%N Hello, world!") -E.EI@"
end -- make sC/T)q2
end -- class HELLO_WORLD F$)Ki(mq
vQA: \!
tvP"t{C6,
Erlang &DgIykqN
-module(hello). 't
wMvm
-export([hello_world/0]). WO]dWO6Mm
m~#O
~)
hello_world() -> io:fwrite("Hello, World!\n"). <MY_{o8d
x}-r Ar
gCd9"n-e
Forth zc(-dMlK
." Hello, world!" CR t0/fF'GZD
N~SG=\rP;o
"xw2@jGpG
Fortran dq[CT
WRITE(*,10) VaH#~!
10 FORMAT('Hello, World!') Fe:0nr9;
STOP ,rQznE1e
END uRJLSt9m
f ^z7K
R7+k=DI
HTML !
XA07O[@
<HTML> \ B<(9
<HEAD> lepgmQ|oY
<TITLE> Hello World! </TITLE> <jfi"SJu
</HEAD> 2Ui)'0
<BODY> A2]N :=
<p>Hello World!</p> "#(]{MY
</BODY> .I[uXd
</HTML> 7x`uGmp1
'H:lR1(,
H=EvT'g
HQ9+ BB9Z?}
H HnrT;!C~
B2VUH..am
#AE'arT<
INTERCAL tFXG4+$D
PLEASE DO ,1 <- #13 Ot5
$~o
DO ,1 SUB #1 <- #238 jPhOk>m
DO ,1 SUB #2 <- #112 9J*m!-hOY
DO ,1 SUB #3 <- #112 (m})V0/`
DO ,1 SUB #4 <- #0 3.
fIp5g
DO ,1 SUB #5 <- #64 zkB_$=sbn#
DO ,1 SUB #6 <- #238 SxNs
DO ,1 SUB #7 <- #26 ^qGH77#z
DO ,1 SUB #8 <- #248 cvi+AZ=
DO ,1 SUB #9 <- #168 C^]bXIb
DO ,1 SUB #10 <- #24 ,Epg&)wC]
DO ,1 SUB #11 <- #16 I
91`~0L*
DO ,1 SUB #12 <- #158 "@DCQ
DO ,1 SUB #13 <- #52 W.{#Pg1Da
PLEASE READ OUT ,1 XswEAz0=
PLEASE GIVE UP (q*Za
,:j^EDCsaJ
Gb\}e}TB[
Java S-g`rTx
public class Hello uG~%/7Qt{
{ 'Q?nU^:F#
public static void main(String[] args) IKH#[jW'IB
{ d'J))-*#UO
System.out.println("Hello, world!"); $D1Pk
} *[k7KG2_U
} ,@8>=rT
5,k&^CK}
U5%EQc-"P
JSP lhKd<Y"
<% 9["yL{IPe
out.print("Hello, world!"); 3@_je)s
%> Jcy
UII R$,XB
3L/>=I{5
MIXAL XQ.JzzY$
TERM EQU 19 the MIX console device number j8YMod=
ORIG 1000 start address %
=br-c
START OUT MSG(TERM) output data at address MSG Hi|'
HLT halt execution %BC*h}KGH
MSG ALF "MIXAL" +kmPQdO;*/
ALF " HELL" x/R|i%u-s
ALF "O WOR" +(QGlRd
ALF "LD " -%NT)o
END START end of the program A7 E*w
P10`X&
!zVuO*+
Nuva Ay22-/C|@
<..直接输出..> 7?dB&m6W
Hello, world! n@Y`g{{e~
JY~s-jxa
<..或者..> /)e&4.6
\M'b%
<. J+kxb"#d
// 不带换行 \ 2*<Pq
? "Hello, world!" VrrCW/o
!i2=zlpb[
// 或者
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NyFa2Ihd
// 带换行 pg ;agtI
?? 'Hello, world!' S2@[F\|r
.> TY],H=
Nj@k|_1
Q_x/e|sd
OCaml ke!)C[^7z
let main () = ,g;~:
print_endline "Hello world!";; ;Z%ysLA
AM#VRRTU
fr4#<6,
Pascal }b\e2ZK
program Hello; D
N GNc
begin kzMCI)>"
writeln('Hello, world!'); |.0/~Xy-
end. >t20GmmN
Ky[/7S5E
-yy&q9
Perl (&=-o(
#!/usr/local/bin/perl SL?
!
RQ
print "Hello, world!\n"; D: NBb!
K, WNM S
4w}\2&=
PHP m1heU3BUWU
<?php !-m(1
print("Hello, world!"); I QS|
?>
lc,{0$
1<
Hl8-1M$&
!vHnMY~AG
Pike ;oH17
#!/usr/local/bin/pike }3!83~Qbx
int main() s*>s;S?{|
{ *!ZU"q}i
write("Hello, world!\n"); T2AyQ~5~
return 0; $pyM<:*L&<
} <!v^Df
y+)][Wa0
3?|Fn8dQR.
PL/I T2P0(rEz
Test: procedure options(main); !k)}p_e
declare My_String char(20) varying initialize('Hello, world!'); ;XMbjWc
put skip list(My_String); >JkQU e
end Test; ;e_dk4_
vRpMZ)e
vQ#$.*Cvn
Prolog ; =ai]AYW
goal nU- .a5
write("hello,world!"). H[wJ; l
Qx1ZxJz #
:bkACuaEn
Python WZ"NG|
#!/usr/local/bin/python I,(m\NalK
print "Hello, world!" Ek~Qp9B
s4<[f%^
Am'5|
REXX 5)+(McJC
say "Hello, world!" AyB-+oTf(
;nyV)+t+a
2
:u4~E3
Ruby 0?qXD O&~
#!/usr/bin/ruby gbL99MZ@~
print "Hello, world!\n" v`A^6)U#M
o7i/~JkTP
OB)Vk
Scheme S7N3L."
(display "Hello, world!") ,%w_E[2
(newline) @C k6s
OkGg4X|9
8 k9(iS
sed (需要至少一行输入) G(~d1%(
sed -ne '1s/.*/Hello, world!/p' {a.{x+!5I-
d8`^;T
;}d
[cwc}f^
Smalltalk Q#wASd.
Transcript show: 'Hello, world!' _iLXs
uc<XdFcu
VT96ph
SNOBOL Q.7Rv
XNw8
OUTPUT = "Hello, world!" Tw/kD)u{
END PX65Z|~>_
dd>|1'-]
:{pvA;f
SQL L MC-1
create table MESSAGE (TEXT char(15)); Dq/[g,(
insert into MESSAGE (TEXT) values ('Hello, world!'); >d!w&0z>
select TEXT from MESSAGE; O+%Y1=S[WQ
drop table MESSAGE; &F1h3q)L
8W)3rD>
}00mJ]H(
Tcl 7Te`#"
#!/usr/local/bin/tcl C(Ujx=G+3
puts "Hello, world!" "(PJh\S>S
3Q*K+(`{
[wG?&l$.KB
TScript !f-mC,d
? "Hello, world!" 5\8Ig f>
m8,P-m
JM!rop^
Turing 3P 3x^NI
put "Hello, world!" 1dh_"/
d|k6#f-E
BoYWx^VHx^
UNIX-style shell Q%KH^<
程序中的/bin/sh可改为您使用的shell rVd (H
W -<E p<7{
#!/bin/sh }@=m[Zx#
echo 'Hello, world!' Un@B D}@\
x^^;/%p
yS p]+
GUI .",E}3zn
an={h,
Delphi 1v!Xx+}
program HelloWorld; +6@".<
uses )` -b\8uw
Dialogs; ^Crl~~Gk`
begin ,uqSq
ShowMessage('Hello, World!'); AX}l~
sv
end. zk=5uKcPE
XmXp0b7
,u^i0uOg
Nuva zD}dvI}
<. H>AQlO+ J
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) CT+pkNC
.> jJdw\`
7].tt
a97A{7I&
Visual Basic \g< M\3f
MsgBox "Hello, world!" PeEf=3
'或者 ,+<NP}Yg#G
Print "Hello, world!" pm$,B7Q`oO
KGdL1~
@;2,TY>Di
Visual FoxPro 8`XpcK-0
? "Hello, world!" zRN_`U
0^nnR7
Z7%
|'E R
X11 W=41jw
用一个程序 \_}Y4
YbB8D-
xmessage 'Hello, world!' ]n1@!qa48
.9{Sr[P
用C++和gtkmm 2 [U@#whE O
unKTa*U^q
#include <iostream> G/>upnA{w
#include <gtkmm/main.h> 5VdF^.:u
#include <gtkmm/button.h> :\9E%/aAD
#include <gtkmm/window.h> sYM3&ikyHI
using namespace std; DcaVT]"
O`5PX(J1&
class HelloWorld : public Gtk::Window Sx?IpcPSm
{ W}#eQ|oCV
public: }D/0&