“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。 U11rj,7
BXZ( %tnY
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》。 D<5gdIw
/U N%P2>^1
以下是用不同语言写成的Hello World程序的几个例子: *yiJw\DRN
Ada L)y }
with Ada.Text_Io; use Ada.Text_Io; ~Xh(JK]
procedure Hello is TG{=~2
begin Tk|0
scjE^
Put_Line ("Hello, world!"); {|%5}\%
end Hello; [|ky~sRr
'=\]4?S
#U"\v7C{n
汇编语言 Hu1w/PLq
A;SRm<,
x86 CPU,DOS,TASM j MW|B
MODEL SMALL 87YT;Z;U&
IDEAL &EE6<-B-
STACK 100H 8ENAif
XxB*lX
DATASEG xDRK^nmC
HW DB 'Hello, world!$' >J.a,!
E+JGqk
CODESEG Y0&w;P
MOV AX, @data ^%IKlj-E
MOV DS, AX qf4|!UR{
MOV DX, OFFSET HW Pkc4=i,`A
MOV AH, 09H _~HGMC)
INT 21H `zZ=#p/
MOV AX, 4C00H e%wbUr]c2
INT 21H h*_r='
E
END o'>jO.|
<2}"Y(zwKl
&X}9D)\UJ
x86 CPU,GNU/Linux,NASM Wq&TbWR
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 3j]La
;Enter this into "hello.asm" then type: P)(Ly5$*
;"nasm -f elf hello.asm" D;BFl(l
;"ld hello.o -o hello" kki]6_/n
;"./hello" CU lANd"
T/-PSfbkj
section .data ;data section declaration o"7,CQye
msg db 'Hello World!',0AH w?oIKj
len equ $-msg ;string length {D1=TTr^
B 8C3LP}?
section .text ;code section declaration {7Dc(gNS
global _start ;entry point (start of execution) iT
4H@
_start: mov edx,len ;string length ndF
Kw
mov ecx,msg ;string start 2>ce(4Gky
mov ebx,1 ;file handle: stdout 5C#&vYnq
mov eax,4 ;sys_write FRs5 Pb1
int 80h ;kernel system call xV}|G
{3_M&$jN
mov ebx,0 ;return value @zsr.d6Q
mov eax,1 ;sys_exit #/\FB'zC
int 80h ;kernel system call x*Z"~'DI
4&$hBn=!
>]ZojdOl)
x86 CPU,Windows,MASM32 3zs~Y3M?i
.386 0Zk A.p
.model flat,stdcall M?)>,
!Z)
option casemap:none vJl4.nk
;Include 文件定义 eHPGzNXb
include windows.inc B<8Z?:3YS
include user32.inc [#lPT'l
includelib user32.lib DFE?H
include kernel32.inc @@SG0YxZ
includelib kernel32.lib A' dt
WD
;数据段 WdunI~&.
.data rh$%*l
szCaption db 'A MessageBox!',0 dYfVox;
szText db 'Hello,world!',0 ]7h&ZF
;代码段 An/)|B4
.code Pg*ZQE[ME8
start: AD*+?%hj
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK ~|l>bf
invoke ExitProcess,NULL lYQcQ*-
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> > {fX;l
end start ]E[Mv}
=
#
?}WQP!
3o"~_l$z
AWK R%7k<1d'`
BEGIN { print "Hello, world!" } -qid.
'hU&$lgMF
a l#yc
BASIC *(D_g!a
传统版BASIC(例如GWBASIC): >qcir~ &
iCc@N|~
10 PRINT "Hello, world!" PS(LD4mD
20 END xU67ztS'E'
@-!w,$F)%d
或在提示符输入: 2)4{
q SCt=eQ
?"Hello, world!":END JK[7&C-O
t?YGGu^
现代版BASIC(例如Quick BASIC): a)y8MGx?
/oe="/y6
Print "Hello, world!" b*?="%eE(
sNS!/
以下的语句在Quick BASIC中同样有效: !{Y$5)Xh`]
|_!xA/_U'T
? "Hello,world!" "}Ya.
h r* KDT^!
e:NzpzI"v
BCPL XXxX;xz$
GET "LIBHDR" (MJu3t
@
=_.Zv
LET START () BE iwrdZLE
$( l ^\5Jr03
WRITES ("Hello, world!*N") - Npl x
$) }tc,3>/
pX6OhwkTK
auL?Hb
Befunge tao3Xr^?
"!dlrow olleH">v /c3DltOdr
, ~~'XY( \L@
^_@ xJc'tT6@
rpDH>Hzq
D&Ngg)_Mq
Brainfuck F?5kl/("
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 3smcCQA%
+++++++++++++++.>.+++.------.--------.>+.>. Z#"6&kv
.`xcR]PQ
>q[Elz=dI
C X$PT-~!a
#include <stdio.h> u8-)LOf(
<t]i'D(K
int main(void) 7&m*:
J
{ >UR-37g{p
printf("Hello, world!\n"); "qQU ^FW
return 0; aViJ?*
} h1JG^w$ 5
r(i<H%"Z
:^J(%zy
C++ '<4OA!,^)
#include <iostream> O{SU,"!y
F!^ Y!Y@H
int main() j G{xFz>x
{ pwU]r
std::cout << "Hello, world!" << std::endl; Y @pkfH
return 0; 7m@pdq5Ub
} "+Xwc+v^
YR~g&E#U^
%Cb8vYz~
C++/CLI :jB(!XH
int main() s+Ln>c'|o
{ B>AIec\jG
System::Console::WriteLine("Hello, world!"); ?ew^%1!W.
} f,`FbT
3cQTl5,
CaZEU(i
C# (C Sharp) C+-~Gmrb(7
class HelloWorldApp H-7*)D
{ lE=Q(QUr
public static void Main() v_)cp9d]
{ 6mMJ$FY+
System.Console.WriteLine("Hello, world!"); &e3z)h
} oaRPYgh4
} KJcdX9x
B'atwgI0
9r\8 !R
COBOL ^ /:]HG
IDENTIFICATION DIVISION. q0DoR@
PROGRAM-ID. HELLO-WORLD. w?<:`
&AOw(?2
ENVIRONMENT DIVISION. P%B1dRa
r`wL_>"{n
DATA DIVISION. 5\EHu8
'HW(RC0dR
PROCEDURE DIVISION. e`#Gq0}8
DISPLAY "Hello, world!". >2>xr"
STOP RUN.
w&:h^u
>\(Ma3S
p*NC nD*
Common Lisp *.voN[$~
(format t "Hello world!~%") q`9~F4\
B:+}^=
}u:^ Mz
DOS批处理 dpE\eXoa,
@echo off {&w%3
echo "Hello, world!" }wj*^>*
)k29mqa`
kD MS7y<s
Eiffel ( 9dV%#G\
class HELLO_WORLD v`x~O+
^/Gjk
creation Mk,8v],-Tj
make kDO6:sjR7
feature fbo64$!hZ
make is `acorfpi
local :qgdn,Me
io:BASIC_IO 6TPcG d Z
do ,FS iE\
!!io SuGlNp>#qm
io.put_string("%N Hello, world!") A(;J
end -- make d'Gv \i&e
end -- class HELLO_WORLD z?1GJ8
|byB7f
Wu.od|t0
Erlang If!0w
;h
-module(hello). z-$?.?d
-export([hello_world/0]). Er{[83
CdTmL{Y1
hello_world() -> io:fwrite("Hello, World!\n"). `2r21rVntf
t$Irr*
?xUz{O0/
Forth .7E-
." Hello, world!" CR >{Lfrc1
#J^p,6
D|9B1>A,m
Fortran ub4(mS
WRITE(*,10) Y5ebpw+B-
10 FORMAT('Hello, World!') pok,`yW\
STOP *;"^b\f5_
END K"-N:OV
v6f$N+4c
iF61J%3-
HTML ,ISq7*%F
<HTML> )S8q.h
<HEAD> >KGQ#hnH
<TITLE> Hello World! </TITLE> @$+l ^"#-]
</HEAD> d5^ipu
<BODY> =7Tbu'O;
<p>Hello World!</p> HT1bsY
0t
</BODY> U@Aq@d+n
</HTML> +zL=UEBN
X<-]./
H,3$TNXy
HQ9+ z{!wQ~
j
H tEP^w
{6/%w,{,
nV']^3b
INTERCAL a[9;Okm#
PLEASE DO ,1 <- #13 /_jApZz
DO ,1 SUB #1 <- #238 T("Fh}
DO ,1 SUB #2 <- #112 NG5H?hVN=
DO ,1 SUB #3 <- #112 ?]h+En5z8
DO ,1 SUB #4 <- #0 2$1rS}}
DO ,1 SUB #5 <- #64 G*J(4~Yw}
DO ,1 SUB #6 <- #238
QW6k!ms$
DO ,1 SUB #7 <- #26 jN5Sc0|b
DO ,1 SUB #8 <- #248 3t%uUkXl
DO ,1 SUB #9 <- #168 P?]q*KViM
DO ,1 SUB #10 <- #24
kAy.o
DO ,1 SUB #11 <- #16 8eOQRC33
DO ,1 SUB #12 <- #158 *bv
Iqa
DO ,1 SUB #13 <- #52 [ ddEt
PLEASE READ OUT ,1 ,FBF;zED
PLEASE GIVE UP w2$HP/90j
?kS5=&<
hb?
|fi
Java JZP2NB_xt
public class Hello -*yj[?6
{ Iun!rv
public static void main(String[] args) *q8W;WaL
{ +[~\\X
System.out.println("Hello, world!"); 4S"K%2'O
} 2sittP
} DO(
/,A<{8
;iS}<TA
zh50]tX
JSP R
8Iac[N
<% V TEyqo2
out.print("Hello, world!"); ,LzS"lmmo
%> |h6@hB\
gVq{g,yi
L{gFk{@W
MIXAL eh)J'G]G
TERM EQU 19 the MIX console device number ,&)XhO?
ORIG 1000 start address =
b)q.2'#
START OUT MSG(TERM) output data at address MSG U*a!Gn7l
HLT halt execution ={feN L
MSG ALF "MIXAL" luC',QJB
ALF " HELL" 8,kbGlSD
ALF "O WOR" #+_OyZ*
ALF "LD " OQ[>s(`*{
END START end of the program (<%i8xu2
SAo"+%
%
)|/s%W
Nuva [;I.aT}R!;
<..直接输出..> Bpk%,*$*)
Hello, world! 8q tNK>D
MX9q
)(:
<..或者..> *=;=VUu5
OpH9sBnA
<. Pv/P<i^
// 不带换行 AKAAb~{
? "Hello, world!" 0/] @#G2
AHZ6
// 或者 Q g"{F},4
W/?D}#e<4
// 带换行 L<Lu;KnY6
?? 'Hello, world!' %LVk%kz
.> v3]q2*`G#
Ir}&|"~H
Nw|Lrn*h!
OCaml j83p[qR7o
let main () = G_AAE#r`
print_endline "Hello world!";; Ogjjjy84vM
&"^A
)Ba^Igb}
Pascal /!%P7F
program Hello; MGmtA(
begin c~C :"g.y
writeln('Hello, world!'); vDBnWA
end. ~CM{?{z;
ff:&MsA|,
J v)]7u
Perl (.n"
J2qj
#!/usr/local/bin/perl 9Z+@i:_}
print "Hello, world!\n"; m9PcDhv
"[#jq5>
:
F48`1+
PHP N!Y'W)i16
<?php /pyKTZ|
print("Hello, world!"); Y[x ^59
?> crhck'?0
xaeY^"L
8^4X/n
Pike ;UWdT]>!?
#!/usr/local/bin/pike nt5 ~"8
int main() BO{J{
{ L;z-,U$;%R
write("Hello, world!\n"); _<3:vyfdC
return 0; N?pD"re)6
} oW/&X5
xH'H!
8
s lPFDBx
PL/I Pq_Il9
Test: procedure options(main); 4Y)3<=kDG
declare My_String char(20) varying initialize('Hello, world!'); k|
jCc
put skip list(My_String); :+R||qi
end Test; :*oI"U*f
A: @=?(lI3
>?$Ze @
Prolog @u$oqjK
goal <B`=oO%o
write("hello,world!"). n%?g+@y,^
O~t5qnu/}
0{B5C[PTG
Python L50`,,WF
#!/usr/local/bin/python [tBIABr
print "Hello, world!" b(XhwkGVq
GN~:rdd
H}}t)H
REXX #Xn#e
say "Hello, world!" $*@mxwMQ}
,g6.d#c
[J*)r8ys
Ruby v=`VDQWq
#!/usr/bin/ruby f0^s*V+
print "Hello, world!\n" Ot,sMRk'
riBT5
YTGup]d
Scheme cAiIbh>c
(display "Hello, world!") bMv9f
J
(newline) 6l> G>)
4wBCs0NIm
0`S!+d
sed (需要至少一行输入) =1esUO[nx
sed -ne '1s/.*/Hello, world!/p' Ri-I+7(n!
o0<T|zgF5,
d[o =
Smalltalk _zpn+XVdQ
Transcript show: 'Hello, world!' IC{>q3
kv'n W
{QhvHV
SNOBOL rzO:9# d
OUTPUT = "Hello, world!" Gpgi@
Uf
END x[>A'.m@)
eEU:
Aa1 |{^$:L
SQL RL&*.r&
create table MESSAGE (TEXT char(15)); KlrKGmy,)
insert into MESSAGE (TEXT) values ('Hello, world!'); Ne#nSx5,
select TEXT from MESSAGE; S>*T&K
drop table MESSAGE; iYnw?4Y
Y&&Y:+
V
!
4s$93
Tcl \XpPb{:>
#!/usr/local/bin/tcl D&oC1
puts "Hello, world!" @RnG K 5
3s|tS2^4
-({\eL$n
TScript L~yy;)]W
? "Hello, world!" gZPJZN/cpz
f?{Y<M~]
", |wG7N
K
Turing V)0bLR
put "Hello, world!" DL~LSh
4$|G$h
@*_K#3
UNIX-style shell
g`Rs;
程序中的/bin/sh可改为您使用的shell Xpa;F$VI
3^fZUldf
#!/bin/sh !~mN"+u&
echo 'Hello, world!' F`ihw[
Wn
dyx4_!fO
Q \{\uJ x
GUI =T\pq8
_ WSJg1
Delphi X0U6:
program HelloWorld; L@2H>Lh35
uses s@q54
Dialogs; ec3('}X
begin ):\pD]e
ShowMessage('Hello, World!'); [XQNgSy?z
end. m?m,w$K
U^,ld`
A] F K\
Nuva 2dq{n.cgs
<. T&S<