“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。 r+#! ]wNPe
|afzW=8'
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》。 8J5{}4s\f
CH`_4UAX%
以下是用不同语言写成的Hello World程序的几个例子: j/C.='?%
Ada hwon^?
with Ada.Text_Io; use Ada.Text_Io; /q3]AVV
procedure Hello is NHL -ll-R
begin QcXqMx
Put_Line ("Hello, world!"); KX|7mr90K
end Hello; SLj2/B0
f{[ ]m(X;
vv9=g*"j
汇编语言 wM2[i
3lZ5N@z69
x86 CPU,DOS,TASM Lwy9QZL
MODEL SMALL qMHI-h_A
IDEAL o1d ECLQa
STACK 100H e2P
ds`
@Yl&Jg2l'
DATASEG <c X\|dM
HW DB 'Hello, world!$' "1#piJ
2G(RQ\Ro*
CODESEG Ki8]+W37
MOV AX, @data i6.HR?n
MOV DS, AX 2v;F@fUB.
MOV DX, OFFSET HW gbl`_t/
MOV AH, 09H Bq20U:f
INT 21H V>Zw" #Q
MOV AX, 4C00H )J['0DUrZK
INT 21H t:SME'~.P
END WZ3GI
l
AW XBk+
h VQj$TA
x86 CPU,GNU/Linux,NASM Q&X#(3&'
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 1&wI*4
;Enter this into "hello.asm" then type: ]<zjD%Ez
;"nasm -f elf hello.asm" ]:6M!+?(
;"ld hello.o -o hello" N
N1(f
;"./hello" `u *:wJsv
{FrcpcrQa
section .data ;data section declaration )6k([u%;B
msg db 'Hello World!',0AH -q8R'?z[
len equ $-msg ;string length !n?8'eqWru
]{/1F:bcQ
section .text ;code section declaration (9_O||ee
global _start ;entry point (start of execution) C.& R,$
_start: mov edx,len ;string length "s6\l~+9l
mov ecx,msg ;string start =MsQ=:ZV
mov ebx,1 ;file handle: stdout "P@jr{zvMd
mov eax,4 ;sys_write j\uh]8N3<
int 80h ;kernel system call m"r=p
uE}A-\G
mov ebx,0 ;return value |_Tp:][mf
mov eax,1 ;sys_exit %+{[ %?xh
int 80h ;kernel system call Ow@}6&1
RTJ\|#w
s_p\
bl.
x86 CPU,Windows,MASM32 &.ilku/
.386 wUj#ACqB
.model flat,stdcall lDV}vuM<4
option casemap:none $r'PYGn
;Include 文件定义 kw gsf5[
include windows.inc bRhc8#kw)
include user32.inc EJz?GM
includelib user32.lib 0[O ."9
include kernel32.inc BKfkB[*F
includelib kernel32.lib 2j UEL=+Y
;数据段 8q5
`A Gl
.data I_k!'zR[N
szCaption db 'A MessageBox!',0 g9XAUZe
szText db 'Hello,world!',0 {wNNp't7
;代码段 t
5{Y'
.code Wt ,t5
start: _?YP0GpU
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK v"K #
invoke ExitProcess,NULL 3`mM0,fY
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> vRR(b!Lq
end start {j!jm5
6
#vc"5@M
43HZ)3!me
AWK {+SshT>J
BEGIN { print "Hello, world!" } #j?SdQ
yt@;yd:OEk
6HK
dBW$/
BASIC XP|qY1
传统版BASIC(例如GWBASIC): eM1=r:jgE
0YApaL+jt
10 PRINT "Hello, world!" O.HaEg/-
20 END 0]._|Ubn6)
5x}XiMM
或在提示符输入: `-J$7)d@
O9_S"\8]@
?"Hello, world!":END ku&m)'
VGPBD-6)
现代版BASIC(例如Quick BASIC): Tx|}ke~
uHNh|ew21
Print "Hello, world!" ?L'4*S]
WbP
wO
以下的语句在Quick BASIC中同样有效: #zL0P>P'a
2GB+st,
? "Hello,world!" *}n)KK7aT
YO3$I!(
wBb J
\
BCPL CB1AL]|3
GET "LIBHDR" |rhCQ"H
$h()%C7s
LET START () BE _Cd_i[K[
$( l|Z<pD
WRITES ("Hello, world!*N") Vjc*D]
$) M.loG4r!
-j<g}IG
G9_M~N%a
Befunge 4NN81~v 4
"!dlrow olleH">v >@T(^=Q
, R DAihq
^_@ +=qazE<:0
L
2Z9g`>
gEBwn2
Brainfuck *a2y
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<<
x|6#
/m
+++++++++++++++.>.+++.------.--------.>+.>. DOzJ-uww1
Du*O|
VHUOI64*
C !8#!P
#include <stdio.h> 6$l6>A
(_Ld^^|
int main(void) Ijs"KAW
?
{ vcsMU|GGh
printf("Hello, world!\n"); yQ3*~d~U|L
return 0; +EnJyli
} 3XeCaq'N
YnCWmlC
%NI'PXpI
C++ .-0;:>
#include <iostream> Ju~8C\Dd
v8<MAq
int main() aJ"Tt>Y[.~
{
r$7D;>*O{
std::cout << "Hello, world!" << std::endl; 7r_Y.
return 0; OSvv\3=
} g[W`4
ZUW~ZZ7Z:
}+_Z|>qv
C++/CLI tVf 1]3(_>
int main() TAbC-T.EV
{ ) $wX~k
System::Console::WriteLine("Hello, world!"); (S@H'G"
} m>@$T
x
u/@dWeY[]
Xu1tN9:oE
C# (C Sharp) .-:R mYGR
class HelloWorldApp ">? y\#OA
{ oXR%A7
public static void Main() W .c:Pulg
{ *d,u)l :S
System.Console.WriteLine("Hello, world!"); FL5tIfV+
} "~f=7
} \mt0mv;c
e3L<;MAt
Mb I';Mq
COBOL >D';i\2j&
IDENTIFICATION DIVISION. O?ZCX_R:L
PROGRAM-ID. HELLO-WORLD. |7jUf$Q\p
s-Mzl?o
ENVIRONMENT DIVISION. 6m$,t-f0b
j}=$2|}8{
DATA DIVISION. k++Os'hSEY
(i,TxjS'od
PROCEDURE DIVISION. D/CSR=b
DISPLAY "Hello, world!". /^E2BRI
STOP RUN. 6 ]@H .8+
W*hRYgaX3
Y%UfwbX!g
Common Lisp p5!=Ur&Ac
(format t "Hello world!~%") uC>X;<^
0ih=<@1 K
g`jO
DOS批处理 gE/O29Y
@echo off /x6,"M[97
echo "Hello, world!" 4Lx#5}P
-Fodqq@,
1{oq8LB
Eiffel bBkF,`/f$
class HELLO_WORLD RZ!-,|"cwL
h Znq\p~
creation o;XzJ#P
make -d+q +l>0
feature F/\w4T
make is v1yNVs\}
local M@rknq@
io:BASIC_IO (u81p
do ^D(N_va<
!!io k0{5)Su"xr
io.put_string("%N Hello, world!") ?|8H|LBIr
end -- make n|vIo)
end -- class HELLO_WORLD P1b5=/}:V
T`f6`1x
x8Rmap@L.
Erlang LYPjdp2>"o
-module(hello). m}] bP
-export([hello_world/0]). XV+s 5C
}vkrWy^
hello_world() -> io:fwrite("Hello, World!\n"). +53 Tf
q/Dc*Qn
m
~^QL"p:5|
Forth HTK79
+
." Hello, world!" CR agqB#,i
d/G`w{H}y
j?ihUNY!+
Fortran <N11$t&_
WRITE(*,10) 0wV!mC
10 FORMAT('Hello, World!') {O,D9 <
STOP $j*j {}K
END .
KJEA#
Z
55iq
3A%/H`
HTML m!3L/UZ
<HTML> `QV}je
<HEAD> p#W[he
<TITLE> Hello World! </TITLE> o0b}:`
</HEAD> $Scb8<
<BODY> $:kG>R@\t
<p>Hello World!</p> Jw'%[(q
Q
</BODY> beFVjVVHq
</HTML> 60P^aj$V
nj99!"_
n*G[ZW*Uc
HQ9+ 5K13
H Bi9b"*LN
#/zPAcV:
5;5;bBo~
INTERCAL 7q*L-Xe]k
PLEASE DO ,1 <- #13 5inmFT?9Z
DO ,1 SUB #1 <- #238 /Fej)WQp
DO ,1 SUB #2 <- #112 dg/OjiD[P
DO ,1 SUB #3 <- #112 [$)C(1zY
DO ,1 SUB #4 <- #0 r+fR^hv
DO ,1 SUB #5 <- #64 8jW{0&ox)
DO ,1 SUB #6 <- #238 lj$\2B
DO ,1 SUB #7 <- #26 1TbY,3W
DO ,1 SUB #8 <- #248 :IDD(<^9
DO ,1 SUB #9 <- #168 9\RSJGx6
DO ,1 SUB #10 <- #24 *(@(9]B~
DO ,1 SUB #11 <- #16 6r/NdI
DO ,1 SUB #12 <- #158 \D(6t!Ox
DO ,1 SUB #13 <- #52 >=-w2&
PLEASE READ OUT ,1 qy=4zOOD#
PLEASE GIVE UP ;Pik},
rH7|r\] r
'" LrGvkZ
Java Qrjo@_+w!
public class Hello |
Zx
{ Q':x i;?Kt
public static void main(String[] args) ~TwjcI*/
{ b[,J-/;JNL
System.out.println("Hello, world!"); hXdc5 ?i?
} mw%do&e
} p@] \ N
W(ITs}O
d)F~)}TFM
JSP T8E=}!68w}
<% XL>v$7`#
out.print("Hello, world!"); (3YCe {
%> |SC^H56+
FI++A`
%cMX]U
MIXAL 4d3]L`
f
TERM EQU 19 the MIX console device number E>f+ E8?
ORIG 1000 start address |f1 S&b.
START OUT MSG(TERM) output data at address MSG d;O16xcM/
HLT halt execution hI*gw3V
MSG ALF "MIXAL" y?j#;n 0
ALF " HELL"
|D<J9+
ALF "O WOR" R=P=?U.
ALF "LD " hN*,]Z{
END START end of the program %Cbqi.iuQ
/tI8JXcUK
!Kr|04Qp#x
Nuva .g71?^?(
<..直接输出..> U 2am1}
Hello, world! oLK-~[p
O?e38(
<..或者..> eS(\E0%QI
;Z|X` <6g
<. _<pSCR0
// 不带换行 h`n,:Y^++P
? "Hello, world!" $qG;^1$
8A/"ia
// 或者 |Qo`K%8
0o~? ]C
// 带换行 FrBoE#
?? 'Hello, world!' %suSZw`
.> .%;`:dtj
o))z8n?b
("-Co,4ey
OCaml ^`>,~$Q
let main () = A\p'\@f
print_endline "Hello world!";; uFQ;}k;}
tY~gn|M
h>\T1PM
Pascal pw|f4c7AH
program Hello; ?'ID7mL
begin Sy|fX_i
writeln('Hello, world!'); ~L\KMB/9e=
end. ^o&3 +s}M
qv\n]M_&
&Omo\Oq&W>
Perl nmIos]B
#!/usr/local/bin/perl nvY3$ Ty
print "Hello, world!\n"; xgoG>~F
" B`k
~D# -i >Z
PHP fA"N5qQI(
<?php O[%"zO"S
print("Hello, world!"); q.sErr[zc
?> )!SA]>-
Ze+p;v
OsI>gX>
Pike SOE5`
#!/usr/local/bin/pike [7x,&
int main() }AfX0[!O
{ 2ZTz{|y
write("Hello, world!\n"); wEd+Ds]$
return 0; e4:,W+g,9
} L#U-dzy\
qe. Qjq
hr@c7/L
PL/I "^M/iv(
Test: procedure options(main); 2J?ON|2M
declare My_String char(20) varying initialize('Hello, world!'); BK>3rjXi>a
put skip list(My_String); K1y]
end Test; D{'>G@nLQ
',Y`XP"Q
p;8I@~dh
Prolog ivTx6-]
goal w:[1,rRvT
write("hello,world!"). 3=YK" 5J
X}j WNN
}
@r|o:I
Python 2rxZN\gyL
#!/usr/local/bin/python ;B Lw?kf
print "Hello, world!" jnF-kia
/hrVnki*
wWq(|"
REXX #B_Em$
say "Hello, world!" +
t%[$"$
vP k\b 3E
:A2{
Ruby S"-q*!AhK
#!/usr/bin/ruby d}d1]@Y\
print "Hello, world!\n" K;uOtbdOK
5a8[0&hA 2
pTzwyj!SD
Scheme p~v
rr 5
(display "Hello, world!") SynL%Y9)|,
(newline) A(Tqf.,G
VIIBw
<H; z4
sed (需要至少一行输入) rN$U%\.I
sed -ne '1s/.*/Hello, world!/p' vw.rkAGY
B7'rbc'
U3UKu/Z
Smalltalk R=7,F6.
Transcript show: 'Hello, world!' G`;YB
!'
}
cA,`!dG2,
SNOBOL 62-,!N 1-
OUTPUT = "Hello, world!" @%FLT6MY
END T
O]wD^`
i>*|k]
<bvbfS
SQL $Gy&
create table MESSAGE (TEXT char(15)); ~]w|ULNa3|
insert into MESSAGE (TEXT) values ('Hello, world!'); K3Sa6"U
select TEXT from MESSAGE; o$4i{BL
drop table MESSAGE; MbT;]Bo
"r+ v^
yG v7^d
Tcl !^Ly#$-X
#!/usr/local/bin/tcl B@+&?%ub:
puts "Hello, world!" l-v(~u7
#7*{ $v
eb` !
TScript ~[N"Q|D3Y
? "Hello, world!" }CM</
w7#9t
7A,lQh
Turing H{d;,KfX
put "Hello, world!" }G/#Nb)
w;OvZo|
u4KP;_,m
UNIX-style shell gs:V4$(p4
程序中的/bin/sh可改为您使用的shell mVs<XnA47
o9XT_!Cwg
#!/bin/sh _\ &