“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。 \,nhGh
T-s[na(/L
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》。 W^,p2
Ly`.~t(~l
以下是用不同语言写成的Hello World程序的几个例子: MnY}U",
Ada w2!5TKZ`
with Ada.Text_Io; use Ada.Text_Io; <gvgr4@^yR
procedure Hello is ~O/B
begin !_>/ r
Put_Line ("Hello, world!"); }*P;kV
end Hello; ucLh|}jJ5
R6GlQ G
bV)h\:oC
汇编语言 ey>tUmt6?
L?(1
[jB4G
x86 CPU,DOS,TASM 1X&scVw
MODEL SMALL "Q.C1#W}.
IDEAL ]K5j(1EN
STACK 100H 68qCY
V22Br#+
DATASEG f0{tBD!%
HW DB 'Hello, world!$' up?S (.*B
d$MewDWUN
CODESEG \rbvlO?}
MOV AX, @data i#U_g:~wC
MOV DS, AX 9M[
MOV DX, OFFSET HW ` gor
MOV AH, 09H bHs},i6
INT 21H NU7k2`bqAk
MOV AX, 4C00H gHvkr?Cg
INT 21H wD pL9 q
END XPi5E"
t.XuH#
,UT :wpc^i
x86 CPU,GNU/Linux,NASM i@YM{FycX
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). &xFs0Ri(
;Enter this into "hello.asm" then type:
OBM&N
;"nasm -f elf hello.asm" 8;,(D#p
;"ld hello.o -o hello" `C*psS
;"./hello" \xk8+= /A
3=lQZi<]%
section .data ;data section declaration cn$0^7?
msg db 'Hello World!',0AH p!LaR.8]
len equ $-msg ;string length 'yAHB* rQR
a/q8v P
section .text ;code section declaration +\B.3%\-
global _start ;entry point (start of execution) u9}LvQh_6,
_start: mov edx,len ;string length Uv:NY1(3!
mov ecx,msg ;string start G'_5UP!
mov ebx,1 ;file handle: stdout i"M$hXO
mov eax,4 ;sys_write =:^f6"p&Z
int 80h ;kernel system call 2cJ3b
0Xx
N!af1zj
mov ebx,0 ;return value HqA~q
mov eax,1 ;sys_exit ?trqe/
int 80h ;kernel system call W^9=z~-h
(=D^BXtH|
kkV*#IZ
x86 CPU,Windows,MASM32 K./L'Me
.386 .|J-(J<>[.
.model flat,stdcall >D$NEO^
option casemap:none ozG!OiRW
;Include 文件定义 lJ4&kF=t
include windows.inc B}ASZYpW>
include user32.inc 3%V VG~[
includelib user32.lib 1GgG9I
include kernel32.inc z]Mu8
includelib kernel32.lib 6Y=MW{=F
;数据段 p~t5PU*(
.data
sCRmLUD
szCaption db 'A MessageBox!',0 cD4H@!=a
szText db 'Hello,world!',0 bdyE9t
;代码段 HNL;s5gq
.code [JX=<a)U
start: mr#XN&e
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK 'y:+w{I2o
invoke ExitProcess,NULL /{\mV(F(
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ( |Xc_nC
end start pH!8vnoA
-*"Q-GO
q+Qrc]>-f
AWK JKYkS*.a}
BEGIN { print "Hello, world!" } $x1PU67
IWAp
F5EsaF'e4
BASIC 3ES3,uR
传统版BASIC(例如GWBASIC): zF=E5TL-,4
Ru^j~Cj5
10 PRINT "Hello, world!" [=KA5c<
20 END F$&{@hd
=5X(RGK
或在提示符输入: w}QU;rl8q
VZ$FTM^b8
?"Hello, world!":END w^aI1M50
Mhj.3nN
现代版BASIC(例如Quick BASIC): km#Rh^
ye1hcQ
Print "Hello, world!" "':u#UdS
tm280
以下的语句在Quick BASIC中同样有效: 6`hHx=L
o;Ma)/P
? "Hello,world!" srfM"Lb'
3eS
*U`_
0hx EI
BCPL niP/i
GET "LIBHDR" Sg}]5Mn`
p4'Qki8Hd
LET START () BE h;8^vB y
$( $P%b?Y/
WRITES ("Hello, world!*N") f^[:w1X$sM
$) OQm-BL
FYu=e?L
XDrNc!XN
Befunge 4^rO K
"!dlrow olleH">v } h0
)
, O
E56J-*}x
^_@ 7|eD}=jy
00)=3@D
H-aSLc
Brainfuck WAt | J2
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< /5c;,.hm1R
+++++++++++++++.>.+++.------.--------.>+.>. Y^W.gGM
Z39I*-6F9W
]@MBE1M
C C 9:5c@G
#include <stdio.h> qdeS*rp\
-P>f2It
int main(void) ;F!wyTF>}
{ 4TW>BA
printf("Hello, world!\n"); BJi
return 0; 2K1odqO#
} K1K3s<y+
OCVF+D :
.U:D uyT
C++ [J.-gN$X@
#include <iostream> zS##YR
m;"i4!
int main() =9ISsI\Y6
{ D.\s mk
std::cout << "Hello, world!" << std::endl; :{Crc
return 0; J3B]JttU
} ;0f?-W?1
'YcoF;&[C
gqf*;Z eU
C++/CLI T] tG,W1>i
int main() Gf{FFIe(
{ U0kEhMIIf
System::Console::WriteLine("Hello, world!"); ZiS<vWa3R
} TZ,kmk#
aN5 w
b8@gv OB
C# (C Sharp) Iv5agh%
class HelloWorldApp hh!^^emo
{ C4jqT
public static void Main() aI6fPQe
{ P`K?k<
System.Console.WriteLine("Hello, world!"); &91U(Go
} +EWfsKz
} aT %A<'O!
.l->O-=
:>K=kZ=k
COBOL _lE0_X|d
IDENTIFICATION DIVISION. $0MP*TFWa
PROGRAM-ID. HELLO-WORLD. dm&vLQVS
7]~65@%R-&
ENVIRONMENT DIVISION. .WR+)^&zz
5)MVkJ=R
DATA DIVISION. k-b0Eogp]
T*%Q s&x;
PROCEDURE DIVISION. A:3:Cr
DISPLAY "Hello, world!". .7*3V6h =F
STOP RUN. rU/V~;#%
kR0d]"dr
,
LP |M:
Common Lisp *$ihNX]YG
(format t "Hello world!~%") %y/8i%@6
#*[G,s#t^
5mD]uB9
DOS批处理 vbeYe2;(
@echo off Cku&s
echo "Hello, world!" X~O2!F
xsq+RBJi
3UIR^Rh+
Eiffel gt9{u"o
class HELLO_WORLD ^uu)|
Olg@ Ri
creation :Qg3B ';
make 52$7vYMto
feature g$\Z-!(
make is ,rB"ag !
local R~$W
io:BASIC_IO fJ3*'(
do :n:Gr?
!!io <MlRy%3Z
io.put_string("%N Hello, world!") Q]Fm4
end -- make 'Lw4jq
end -- class HELLO_WORLD /=zzym~<>
S?bG U8R5
]8|cVGMa
Erlang eUyQS I4A
-module(hello). EPQ~V
-export([hello_world/0]). l;I)$=={=
d85\GEF9i
hello_world() -> io:fwrite("Hello, World!\n"). ?t&sT
8\BCC1K
`3Gjj&c
Forth ,1"w2, =
." Hello, world!" CR H*DWDJxmV
:RsO$@0G
tH_e?6]
Fortran X`d d"8%
WRITE(*,10) HeagT(rN'
10 FORMAT('Hello, World!') @Fp-6J
STOP !vU$^>zo~
END MX%D%}N
b5hJaXJN
,7mRb-*p
HTML (Yzy;"iAu
<HTML> %E95R8SL
<HEAD> :GU6v4u
<TITLE> Hello World! </TITLE> I<q=lK
</HEAD> *RQkL'tRf
<BODY> sbZ$h
<
<p>Hello World!</p> 7a@%^G @!
</BODY> 17Q1Xa
</HTML> }U=|{@%
q$$:<*Uy
'1lr "}"Q+
HQ9+ 5} 9}4e
H L~yu
G:f\wK[
"#H@d+u
INTERCAL (o/HLmr@Y
PLEASE DO ,1 <- #13 S~QL
x
DO ,1 SUB #1 <- #238 x~Egax
DO ,1 SUB #2 <- #112 m@hmu}qz-
DO ,1 SUB #3 <- #112 Th&*
d;
DO ,1 SUB #4 <- #0 '/^bO# G:
DO ,1 SUB #5 <- #64 l[EnFbD6
DO ,1 SUB #6 <- #238 =qY!<DB[L
DO ,1 SUB #7 <- #26 ?*}^xXI/
DO ,1 SUB #8 <- #248 /P*mF^Y
DO ,1 SUB #9 <- #168 U!E
DO ,1 SUB #10 <- #24 SMr
]Gf.
DO ,1 SUB #11 <- #16 B/S~Jn
DO ,1 SUB #12 <- #158 -9XB.)\#
DO ,1 SUB #13 <- #52 r7z8ICX'q
PLEASE READ OUT ,1 ,~
D_T
PLEASE GIVE UP ,?"cKdiZ
pKf]&?FX
1]HEwTT/1_
Java [C
PgfVz
public class Hello H[ 6L!
{ }QszOi\fV1
public static void main(String[] args) Yx21~:9}
{ o2
=UUD&
System.out.println("Hello, world!"); 'iM;e K
}
~Qzb<^9]
} W+[XNIg5
|=C&JA
O2|[g8(_F
JSP @add'>)
<% Ju""i4
out.print("Hello, world!"); ecK{+Z'G
%> `T H0*:aI
Wq_#46P-
S^,1N4
MIXAL I#0WN
TERM EQU 19 the MIX console device number W+3ZuAP\n
ORIG 1000 start address ,Vz
1l_7
START OUT MSG(TERM) output data at address MSG MHN?ZHC)
HLT halt execution 74VN3m
MSG ALF "MIXAL" 3[kY:5-
ALF " HELL" k}-@N;zq
ALF "O WOR" p@H]F<
ALF "LD " c+PT"/3
END START end of the program +@]b}W
t:tT Zh
k r0PL)$
Nuva #hEN4c[Ex
<..直接输出..> +.N3kH
Hello, world! 0MK|spc
!xs.[&u8
<..或者..> rixP[`!]x
Hl"qLrb4
<. dmHpF\P5f
// 不带换行 r<]Db&k
? "Hello, world!" M)Iu'
aRBTuLa)fo
// 或者 ^dB~#A1
6"^Yn.
// 带换行 wB6ILTu1
?? 'Hello, world!' 2Yd0:$a
.> t+'|&b][Qi
,3_;JT"5
R:zPU
OCaml lv_|ws
let main () = K!/"&RjW.
print_endline "Hello world!";; Z:3N*YkL
+I$c+WfU
Z%3]
Pascal Ekx3GM_]
program Hello; J /3qJst
begin ZMmaM "9
writeln('Hello, world!'); csg:#-gE
end. K31G>k@
0-H! \IB
_3UH"9g{
Perl LG6VeYe|\X
#!/usr/local/bin/perl 6QsH?!bu
print "Hello, world!\n"; ^06f\7A
("{JNA/
<vx/pH)f
PHP rrK&XP&
<?php aC0[ OmbG
print("Hello, world!"); s`*
'JM<
?> k9j_#\E[
%Gp%l
Jz D
Mx?
Pike ,-PzUR4_Kj
#!/usr/local/bin/pike gakmg#ki
int main() Qmxe*@{`
{ 70,V>=aJ
write("Hello, world!\n"); `oP<mLxle
return 0; ^|^ek
} :34#z.O
6AeX$>k+
"0o1M\6Z
PL/I fj
X~"U
Test: procedure options(main); >jEn>H?
declare My_String char(20) varying initialize('Hello, world!'); Xz)UH<
put skip list(My_String); fMe "r*SU
end Test; ugexkdgM
|FZ)5
74YMFI
Prolog Q3MG+@) S
goal D"o}X TH
write("hello,world!"). y=i_:d0M
Bw-<xwD
T'9I&h%\
Python NNZ%jJy?=,
#!/usr/local/bin/python ":E^&yQ
print "Hello, world!" m+p}Qi8i)
\u@4eBAV
[(v?Z`cX\
REXX jf0D
say "Hello, world!" OjxaA[$
~ZeF5
(9:MIP
Ruby ' uvTOgP,
#!/usr/bin/ruby J2cqnwUV
print "Hello, world!\n" &7* |rshZ
O]{3aMs!Y
%bo0-lnp
Scheme } ).rD
(display "Hello, world!") ^'EeJN
(newline) n<
UuVu
Ed[ tmaEuV
6^U8Utx
sed (需要至少一行输入) g_lj/u]P
sed -ne '1s/.*/Hello, world!/p' Oo'IeXQ9(
l` 9<mL
"Y(stRa
Smalltalk ConXP\M-
Transcript show: 'Hello, world!' )cA#2mlS'1
C
Z8Fe$F
?E1<>4S8
SNOBOL P" +!mSe^~
OUTPUT = "Hello, world!" 61|uvTX
END om%L>zfB
);T0n
C^ngdba\
SQL ,|hM`<"?
create table MESSAGE (TEXT char(15)); ,lK=m~
insert into MESSAGE (TEXT) values ('Hello, world!'); z3!j>X_w
select TEXT from MESSAGE; U ObI&*2
drop table MESSAGE; `"CIy_m
^):m^w.
$hexJzX
Tcl ~B!O
X
#!/usr/local/bin/tcl W}&[p=PAS
puts "Hello, world!" r0ml|PX
FEqs4<}E
*a_U2}N
TScript z%xWP&3%"
? "Hello, world!" IS *-MLi
^(<Ecdz(
e~#;ux
Turing &R