“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。 _5LlL#)
BVNh>^W5B
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》。 6kuSkd$.
x+TNF>%'D
以下是用不同语言写成的Hello World程序的几个例子: !aEp88u
Ada u ?Xku8 1l
with Ada.Text_Io; use Ada.Text_Io; zn~m;0Xi
procedure Hello is r#}Sy\
begin 8say"Qz
Put_Line ("Hello, world!"); Q8~pIv
end Hello; M1M]]fT0ME
-)I _+N
K/,lw~>
汇编语言 Le'\x`B
j&mL]'Zy
x86 CPU,DOS,TASM ,RHHNTB("
MODEL SMALL -oo=IUk
IDEAL o_N02l4J)
STACK 100H (os7Q?
r/T DU[`&
DATASEG E{ ,O}
HW DB 'Hello, world!$' 7@"X~C
XHg%X
CODESEG z} \9/`
MOV AX, @data rN~`4mZ
MOV DS, AX By_Ui6:D
MOV DX, OFFSET HW QaO`:wJj
MOV AH, 09H DRIv<=Bt
INT 21H R`&ioRWj
MOV AX, 4C00H YBO53S]=
INT 21H ]O\W<'+V
END L' pZ
({9!P30:
7| T:TbY>
x86 CPU,GNU/Linux,NASM ^Bb_NcU
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). HW G~m:km
;Enter this into "hello.asm" then type: `+o.w#cl
;"nasm -f elf hello.asm" YC_^jRB8n
;"ld hello.o -o hello" FTfA\/tl(;
;"./hello" u@EM,o
{EUH#':
section .data ;data section declaration IXN4?=)I
msg db 'Hello World!',0AH xVyUUzXs
len equ $-msg ;string length |<*(`\'w
kt#W~n
section .text ;code section declaration |Q;o538
global _start ;entry point (start of execution) z>:7}=H0
_start: mov edx,len ;string length <X |h*
mov ecx,msg ;string start t_rDXhM
mov ebx,1 ;file handle: stdout [s2V-'2
mov eax,4 ;sys_write 4Dia#1$:J
int 80h ;kernel system call }BrE|'.j'
,')bO*Ng
mov ebx,0 ;return value -!cAr
<
mov eax,1 ;sys_exit b9N4Gr
int 80h ;kernel system call o%%fO
|7$h@KF=S
TH!8G,(w
x86 CPU,Windows,MASM32 \G@6jn1G(
.386 SA1/U
.model flat,stdcall "/?qT;<$)
option casemap:none 0d ->$gb
;Include 文件定义 sriz
b
include windows.inc VWv0\:,G
include user32.inc ? ^CGJ1
includelib user32.lib /8>/"Z2S
include kernel32.inc ^gyp-
!
includelib kernel32.lib y^\#bpq&\
;数据段 F/SsiUBS
.data Cpcd`y=IN
szCaption db 'A MessageBox!',0 rk |(BA
szText db 'Hello,world!',0 b2e a0
;代码段 =.hDf<U
.code u&XkbPZ%4c
start: |q2lTbJ
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK zYdtQjv
invoke ExitProcess,NULL %},G(>
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> h.;CL#s
end start J\'5CG
rb'Gve W[
jSYg\Z5!
AWK O97bgj]
BEGIN { print "Hello, world!" } 1>VS/H`
p8d n-4
>}{-!
BASIC Td1ba ^J
传统版BASIC(例如GWBASIC): t1{}-JlA
v|(b,J3
10 PRINT "Hello, world!" "D(8]EG=
20 END -3tBN*0+
xPup?oP >
或在提示符输入: !<zzP LC
oB
R(7U~0
?"Hello, world!":END MK"
\_AEuz3
F
现代版BASIC(例如Quick BASIC): &AcFa<U
#L:P
R>
Print "Hello, world!" }@%ahRGx%9
F^t?*
以下的语句在Quick BASIC中同样有效: ,l .U^d6>
N%A`rY}u
? "Hello,world!" BemkCj2
K]!u@I* K"
'Q>z**
BCPL B8AzN9v&"N
GET "LIBHDR" SM+fG: 4d
#pQ"+X
LET START () BE Df~p'N-$
$( (Q8?)
WRITES ("Hello, world!*N") uQ]]]Z(H'
$) 36x:(-GFq
!5%5]9'n@*
asN
}
Befunge }FiN 7#
"!dlrow olleH">v ,i?!3oLT
, #2R%H.*t
^_@ w<e;rKr
=l4\4td9p
K6{bYho
Brainfuck 4ylDD|) rO
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< AY'?Xt
+++++++++++++++.>.+++.------.--------.>+.>. `m3QT3B
+^ DRto=
R:OU>HsdX
C } .3]
#include <stdio.h> QrckTO
Dbdzb m7
int main(void) )6:]o&bZ
{ )ko{S[gG
printf("Hello, world!\n"); @" 0tW:
return 0; pl x/}ah8
} ~8xh0TSi
)d(0Y<e@
gMBQtPNM
C++ 2K rqY
#include <iostream> 4m~7 ~- h
4:Xj-l^D
int main() 25a#eDbqi
{ PIEW \i
std::cout << "Hello, world!" << std::endl; 'uf2
nUo
return 0; [j}7 @Mr`\
} 9c^skNbS
,3]?%t0xe
noh|/sPMD
C++/CLI .D,?u"fk|
int main() hK39_A-
{ W`u$7k]$
System::Console::WriteLine("Hello, world!"); =Etwa
} _TOi
[GT
y,v0-o~q
<L/M`(:=k
C# (C Sharp) Vv]$\`d#
class HelloWorldApp Q5y
q"/=[a
{ te;Ox!B&
public static void Main() @0ov!9]Rw-
{ &cu] vw
System.Console.WriteLine("Hello, world!"); *hZ~i{c,7
} N$%61GiulT
} >{ECyh;
&7($kj
y
Tw',N{
COBOL w.D4dv_H
IDENTIFICATION DIVISION. 1]>$5 1Q
PROGRAM-ID. HELLO-WORLD. eyf4M;goz}
/~Zc}o,J
ENVIRONMENT DIVISION. OgKWgvy
<+\k&W&Y|y
DATA DIVISION. pymx\Hd,
$!F&>=o
PROCEDURE DIVISION. 7}d$*C
DISPLAY "Hello, world!". K=tx5{V
STOP RUN. 8Da(tS
18.Y/nZAgQ
gp$EXJ=
Common Lisp W1?!iE~tO
(format t "Hello world!~%") 3q#"i&
z [qdmx^
Mr=}B6`
DOS批处理 K5!";V
@echo off KP=D! l&q
echo "Hello, world!" t&R!5^R
C|4U78f{
&@4.;u
Eiffel E 4='m
class HELLO_WORLD p*pn@z
qSEB}1
creation 66~e~F}z
make %Lp2jyv.
feature $/[Gys3"
make is 3`&VRF8
local e{fZ}`=7y
io:BASIC_IO W>Mse[6`c
do k;;nE o~6
!!io N<aB)</
io.put_string("%N Hello, world!") d&aBs++T
end -- make +R
"AA_A?
end -- class HELLO_WORLD *CeQY M
#Rin*HL##
/B,B4JI)/
Erlang 7szls71/=
-module(hello). j`2B}@ 2
-export([hello_world/0]). K08 iPIkQ
Cq?',QU6j
hello_world() -> io:fwrite("Hello, World!\n"). d[Rb:Yw
|h^K M
2f3=?YqD
Forth b
A)b`1lI
." Hello, world!" CR >.J'L5
x$
W[R]^2QAG
CgVh\4,a
Fortran <\, &:<
WRITE(*,10) *nYB o\@g
10 FORMAT('Hello, World!') K4j@j}zK9I
STOP +jq
2pFQ
END gI)w^7Gi
<K.Bq]
I:F'S#
HTML iD%qy /I/
<HTML> cy1\u2x_`
<HEAD> MxY50^}(
<TITLE> Hello World! </TITLE> tCZpfZ@+=
</HEAD> 4)c+t"h
<BODY> IIq"e~"Vs
<p>Hello World!</p> T@(6hEmP,
</BODY> PSW#^o
</HTML> R'G'&H{N
0fnZR$PB
} c{Fa&
HQ9+ + jp|Y?6Z
H gWFL
u=vh
Z%A]
8W-]t1O%!
INTERCAL 5{')GTdX>
PLEASE DO ,1 <- #13 "w*@R8v
DO ,1 SUB #1 <- #238 TkA9tFi
DO ,1 SUB #2 <- #112 \4OK!6LkI
DO ,1 SUB #3 <- #112 B^Xy0fq
DO ,1 SUB #4 <- #0 R `;o!B}[
DO ,1 SUB #5 <- #64 H \r `7
DO ,1 SUB #6 <- #238 -&trk
DO ,1 SUB #7 <- #26 azvDvEWCQZ
DO ,1 SUB #8 <- #248 |xq}'.C
DO ,1 SUB #9 <- #168 M|U';2hZN:
DO ,1 SUB #10 <- #24 "YuZ fL`bb
DO ,1 SUB #11 <- #16 dO+kPC
DO ,1 SUB #12 <- #158 Tv`_n2J`2
DO ,1 SUB #13 <- #52 f4R1$(<
PLEASE READ OUT ,1 N%O[
PLEASE GIVE UP 2[.5o z`
R @"`~#$$
>[K0=nA
Java mDZ=Due1
public class Hello BApa^j\?
{ ]X*YAPv
public static void main(String[] args) 9^oo-,Su_
{ GL/ KB
System.out.println("Hello, world!"); /a%*u6z@
} =]T|h
} [d0%.+U
b 1cd&e
V{KjRSVf=
JSP FnY$)o;
<% ?3[tJreVj
out.print("Hello, world!"); b<\$d4Qy
%> {&uT3*V1
9 >%+bA(
o1U}/y+R\
MIXAL Pfm*<,'x"[
TERM EQU 19 the MIX console device number BjYOfu'~z
ORIG 1000 start address B-$+UE>%
START OUT MSG(TERM) output data at address MSG VW {,:Ya
HLT halt execution }bp.OV-+
MSG ALF "MIXAL" 3a%xn4P
ALF " HELL" `%uK0qw"
ALF "O WOR" S:#e8H_7m]
ALF "LD " (JWv *p
END START end of the program Q2q|*EL
D{>\-]\
N50fL
Nuva sqT^t!
<..直接输出..> 6Hda]y
Hello, world! RXM}hqeG
am2a#4`
<..或者..> A&NqQ
V,
>ZX|4U[$P
<. jSB'>m]
// 不带换行 q=njKC
? "Hello, world!" ;:U<ce=
|IAW{_9)U
// 或者 +Jdm#n?_
+uELTHH=
// 带换行 /0
_zXQyV
?? 'Hello, world!' ^eobp.U
.> |Hfl&3
C*a,<`
`T=1<Tw c
OCaml GJvp{U}y9I
let main () = n_J5zQJ
print_endline "Hello world!";; ?;_H{/)m
<z',]hy
b )Tl*
Pascal VxkEe z'|
program Hello; |e:rYLxm:
begin +|9f%f6vp
writeln('Hello, world!'); AO $Wy@
end. hl**zF
/,X7.t_-
9l#gMFknI
Perl } #qQ2NCH
#!/usr/local/bin/perl $.9 +{mz
print "Hello, world!\n"; 4j^bpfb,
l:)S 3
%;tJQ%6-.S
PHP w]F!2b!
<?php /w0w*nH
print("Hello, world!"); ,aWCiu}
?> T~h.=5
QhsVIta
}YRO'Q{
Pike rfc|`*m}0
#!/usr/local/bin/pike K>$qun?5
int main() /eb-'m
{ !O 8.#+
write("Hello, world!\n"); pu#[pa
return 0; HJ",Sle
} nn'Af,ko/
~{$L9;x
.+HcA x{/2
PL/I L/%Y#
Test: procedure options(main); )O&z5n7t4s
declare My_String char(20) varying initialize('Hello, world!'); 3[.3dy7,Z
put skip list(My_String); UG # X/%p
end Test; nSHNis
\WX@PfL
_CL{IY
Prolog 1LX)4TCC
goal i\ "{#
write("hello,world!"). EWO /u.z
@%:E }
kf'=%]9#_T
Python @+E7w6>%
#!/usr/local/bin/python >9MS"t
print "Hello, world!" KJX>DL 9\
\f<z*!,D$
&Q~)]|t
REXX cf\&No?-p
say "Hello, world!" ,WGc7NN`
%0zS
'gCZ'edM
Ruby 9$wAm89
#!/usr/bin/ruby <S&]$?`{Wi
print "Hello, world!\n" 5e8xKL
p(?g-
)'t&q/Wn
Scheme 5D
L,U(Y
(display "Hello, world!") ;Gh>44UM[
(newline) {:$NfW
=W<[Fe3
tH,sql)
sed (需要至少一行输入) 7gr^z)${J
sed -ne '1s/.*/Hello, world!/p' GL`tOD:P"
8jNOEM(0Y+
Z0W0uP;J
Smalltalk 2LC
w*eT{)
Transcript show: 'Hello, world!' N8QH*FX/F1
TaWaHf
d#8e~
SNOBOL .:N:p We
OUTPUT = "Hello, world!" _JA:.V^3gm
END 6bUl>4
bS%C?8
j76%UG\Ga
SQL K[]K53Nk
create table MESSAGE (TEXT char(15)); v^TkDf(Oz
insert into MESSAGE (TEXT) values ('Hello, world!'); e[8UH =`|
select TEXT from MESSAGE; <]'|$8&jY
drop table MESSAGE; V)h
y0_
~
aA;<#
t#~XLCE
Tcl _*n)mlLln
#!/usr/local/bin/tcl 7@3sUA_Go
puts "Hello, world!" \XDmK
[8z&-'J=
H?{MRe
TScript a'A s
? "Hello, world!" JnHNkCaU
]'UgZsJ
~of,,&
Turing m1V- %kUI
put "Hello, world!" ^)<