“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。 .?YLD+\A
j7|r^
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》。 ?Rj)x%fN
ie!ik
以下是用不同语言写成的Hello World程序的几个例子: hC[MYAaF
Ada aa1^cw 5}
with Ada.Text_Io; use Ada.Text_Io; 420cJ{;A
procedure Hello is gUoTOA,
begin "3"9sIZ(
Put_Line ("Hello, world!"); M"eiKX
end Hello; ytX XZ`
`
qqUuFMM
C=6 Vd
汇编语言 |3?q L
O)qedy*&
x86 CPU,DOS,TASM 'K=n}}&:
MODEL SMALL \)?[1b&[_
IDEAL TrHz(no
STACK 100H H *gF>1
G:e9}
DATASEG %hzl3>().
HW DB 'Hello, world!$' x7=5 ;gf/X
rQ^$)%uP
CODESEG Ub8|x]ix
MOV AX, @data DV(^h$1_
MOV DS, AX Gmi w(T
MOV DX, OFFSET HW -$#'
MOV AH, 09H mRT`'fxK
INT 21H R30{/KK
MOV AX, 4C00H m
4VhR_
INT 21H ugtb`d{ Sl
END _-^Lr
/`G!
$~<);dYu0
at@B>Rb
x86 CPU,GNU/Linux,NASM 1YmB2h[Z
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 0^Vc,\P?
;Enter this into "hello.asm" then type: %Bo/vB'
;"nasm -f elf hello.asm" 6^pddGIG
;"ld hello.o -o hello" xG05OqKpE
;"./hello" 6Hz45
gQJ y"f
section .data ;data section declaration %.kJ@@_e
msg db 'Hello World!',0AH g_\U-pzr
len equ $-msg ;string length =X?jId{
s5X .(;+
section .text ;code section declaration \7QAk4I~
global _start ;entry point (start of execution) er Cl@sq
_start: mov edx,len ;string length !tkP!%w
mov ecx,msg ;string start 2G'Au} q0n
mov ebx,1 ;file handle: stdout 6e6~82t8/
mov eax,4 ;sys_write <6=kwV6
int 80h ;kernel system call ~G!>2 +L
*_puW
x
mov ebx,0 ;return value %,-oxeM1u
mov eax,1 ;sys_exit ^w eU\
int 80h ;kernel system call @tvAI2W
iEG`+h'
fdIk{o
x86 CPU,Windows,MASM32 )6# i>c-
.386 8'Eu6H&$G
.model flat,stdcall Farcd!}
option casemap:none /`YHPeXu
;Include 文件定义 #\kYGr-G)
include windows.inc %Y"@VcN
include user32.inc tl |Qw";I
includelib user32.lib Zk*/~f|\
include kernel32.inc Cf'O*RFD
includelib kernel32.lib 8-Ik .,}
;数据段 je6H}eWTC6
.data vDgf}
szCaption db 'A MessageBox!',0 :^+ aJ]
szText db 'Hello,world!',0 &[*F!=%8
;代码段 tkBp?Wl
.code 0p\cDrB?
start: Y4]USU!PA
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK zK`z*\
invoke ExitProcess,NULL \K+LKa)
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> }v[*V
end start %UuV^C
XOQj?Q7)U
+~Ni7Dp]
AWK Hf( d x\5
BEGIN { print "Hello, world!" } ?Xscc mN
#!d@;=[\
#M;Cw}pW
BASIC -I7"9}j3
传统版BASIC(例如GWBASIC): -,NiSh}A
Qo>VN`v
10 PRINT "Hello, world!" +;7Rz_.6f
20 END sM)n-Yy#9
E9_aNYD
或在提示符输入: xWX1P%`
jX5lwP
Q|F
?"Hello, world!":END nmlQ-V-
: [o0Va2 d
现代版BASIC(例如Quick BASIC): !BD+H/A.{
sfSM7f
Print "Hello, world!" VU7x w
kH
Y
以下的语句在Quick BASIC中同样有效: ]+O];*T
e;:~@cB,c
? "Hello,world!" P+!j[X^
&K@2kq,
%zx=rn(K
BCPL l?:!G7ie
GET "LIBHDR" XJl2_#
KlbL<9P>
LET START () BE h$)},% e
$( uc@f# (-
WRITES ("Hello, world!*N") 7(<6+q2~
$) -`FPR4;
M#II,z>q
9V*h:[6a(
Befunge ZSj^\JU
"!dlrow olleH">v Ky33h 0TX
, z}v6!u|iZu
^_@ F%!ZHE7
,>X
+tEgR
y>T:fu
Brainfuck ` z<k7ig
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< qiQS:0|_
+++++++++++++++.>.+++.------.--------.>+.>. qSh^|;2?R
Sns`/4S?6Z
W)^0~[`i
C Gj]*_"T
#include <stdio.h> hO3>Gl5<
z_vFf0
int main(void) %jKbRiz1u
{ FVOR~z
printf("Hello, world!\n"); c?;~Z
return 0; [!E pv<G
} k
9 Xi|Yj
ml$"C
zCxr]md
C++ {S4^;Va1
#include <iostream> |T: 'G
%;+Q0
e9
int main() MM8r*T4g/
{ }Z5#{Sd
std::cout << "Hello, world!" << std::endl; 0U'g2F>{
return 0; O(BAw
} u!TVvc
L=W8Q8hf
{Muw4DV
C++/CLI ng$`<~=)\
int main() 1:S75~b-`
{ QGE)Xn#_bN
System::Console::WriteLine("Hello, world!"); <4Z;a2l}U
} 5!Y51R^c
^Wk.D-
6j9P`#Lt
C# (C Sharp) i,jPULzyjk
class HelloWorldApp B\BxF6 y
{ ^W-03
public static void Main() ;2X/)sxWz
{ h^#K4/
System.Console.WriteLine("Hello, world!"); 5(kRFb'31F
} wmh[yYWc
} :|i jCg+
'(M8D5?N-
/ 0Z_$Q&e
COBOL bM`7>3
d7E
IDENTIFICATION DIVISION. 5nL,sFd
PROGRAM-ID. HELLO-WORLD. z.itVQs$I
X2PQL"`
ENVIRONMENT DIVISION. 86(8p_&zC
o)<c1\q
DATA DIVISION. _+z5~6>
3(|8gWQ
PROCEDURE DIVISION. z>HeM
Mei
DISPLAY "Hello, world!". N-
E)b
STOP RUN. S7SD$+fX
$agd9z,&m
T^9k,J(rM
Common Lisp @m14x}H
(format t "Hello world!~%") SenDJv00
8':^tMd
=sVB.P
DOS批处理 F6 ?4E"d
@echo off <=KtRE>$
echo "Hello, world!" 5N=QS1<$5
?ysC7((
FbRq h|
Eiffel =#qf0
class HELLO_WORLD Vm
NCknG
Z6G>j
creation "_Wv,CYmNr
make !o
A,^4(
feature 7I>@PVN
make is {MK.jw9/
local 4f+R}Ee7
io:BASIC_IO c=]z%+,b]
do ]AjDe]
!!io Ys |n9pW
io.put_string("%N Hello, world!") 6{/HNEI*1
end -- make a!ao{8#
end -- class HELLO_WORLD "?E>rWz
-A}U^-'a}
5AV5`<r.
Erlang P~Cx#`#(V
-module(hello). <C0~7]XO
-export([hello_world/0]). Zi$v- b*<
0zR4Kj7EE
hello_world() -> io:fwrite("Hello, World!\n"). hVPSW# .d
uH'n.d"WG
tY=sl_
Forth U#3Y3EdF<
." Hello, world!" CR jr$]kLY
~3YN;St-
:sD/IM",},
Fortran hiKgV|ZD
WRITE(*,10) A1`y_
Aj
10 FORMAT('Hello, World!') =<nx[J
STOP eq)8V x0
END A|!u`^p
$6~ J#;
KtWn08D!
HTML 5(F @KeH>
<HTML> e$krA!zN
<HEAD> :_R[@?c
<TITLE> Hello World! </TITLE> X.)caF^j
</HEAD> fh rS7f'Zd
<BODY> |q&&"SpA
<p>Hello World!</p> 59eq"08
</BODY> P{qi>FJqe
</HTML> 4RgEN!d?H
i@7b
mx`C6G5
HQ9+ +r0ItqkM
H Z]H`s{3
(7 i@@
,'~8{,h5
INTERCAL }%z {tn
PLEASE DO ,1 <- #13 px!lJtvgo
DO ,1 SUB #1 <- #238 yHS=8!
DO ,1 SUB #2 <- #112 tBSHMz
DO ,1 SUB #3 <- #112 9H$$Og
DO ,1 SUB #4 <- #0 k"-2OT
DO ,1 SUB #5 <- #64 YcJZG|[
DO ,1 SUB #6 <- #238 |TCHPKN
DO ,1 SUB #7 <- #26 4{!7T
DO ,1 SUB #8 <- #248 -8;@NAUa
DO ,1 SUB #9 <- #168 r q2]u
DO ,1 SUB #10 <- #24 Rlvb@aXgy
DO ,1 SUB #11 <- #16 g8<Ja (J
DO ,1 SUB #12 <- #158 2, bo
DO ,1 SUB #13 <- #52 7s#,.(s
PLEASE READ OUT ,1
WW5AD$P*
PLEASE GIVE UP * !4r}h`
6$#p}nE
<3aiS?i.h
Java f=0U&~
public class Hello wvH=4TT=w"
{ nt$VH
public static void main(String[] args) }A@op+0E
{ k@HV
wK'y
System.out.println("Hello, world!"); DIx!Sw7EC
} i"eUacBz/-
} k+8K[?K-
6.X| .N
xO2e>[W
JSP :by EXe;3
<% ySyA!Z
out.print("Hello, world!"); @=@7Uu-
%> !`j}%!K!
U&DD+4+28:
yb)!jLnH
MIXAL +6cOL48"
TERM EQU 19 the MIX console device number ZH]n&%@j
ORIG 1000 start address u=epnz:<
START OUT MSG(TERM) output data at address MSG n}NO"eF>-s
HLT halt execution FjUf|
MSG ALF "MIXAL" v(uYso_
ALF " HELL" 0Q\6GCzN\
ALF "O WOR" \[m{ &%^G
ALF "LD " bUR;d78
END START end of the program O3Jp:.ps
\UKr|[P
Jzqv6A3G
Nuva "u#T0
<..直接输出..> x8L$T (^
Hello, world! LQy`,-&
FT0HU<." 1
<..或者..> mIJYe&t7)
AF-4b*oB
<. x.d;7
// 不带换行 |UA)s3Uhxb
? "Hello, world!" .nXOv]
1: cD\
// 或者 .2y2Qm
& ,KxE(C
// 带换行 njO5 YYOu
?? 'Hello, world!' !3Xu#^Xxj
.> AQCU\E
xx^7
ZM:!LkK
OCaml 37:\X5)z/
let main () = gQXB=ywF
print_endline "Hello world!";; #=>t6B4af
-ti
nL(?3
Aqi9@BH
Pascal {5<3./5O
program Hello; s,KE,$5F
begin x3dP`<
writeln('Hello, world!'); 9?4EM^-
end. Tyc`U&
V\C$/8v
y]dA<d?u
Perl lRIS&9vA3
#!/usr/local/bin/perl 6rBXC <Z
print "Hello, world!\n"; |2oCEb1
3zV{cm0
Ygwej2
PHP <$#;J>{WV
<?php e -sZ_<GH
print("Hello, world!"); Wn p\yx`
?> V/
a!&_""
hrLPyV:
7od6`k
Pike RgF5w<Vd.
#!/usr/local/bin/pike xPuuG{Sm
int main() ]{mz %\
{ w 0V=49
write("Hello, world!\n"); y$JM=f$
return 0; W$E!}~Ro
} =LP,+z
c:%ll&Xtn
BQ\o?={
PL/I P, (#'
W
Test: procedure options(main); L.5 /wg
declare My_String char(20) varying initialize('Hello, world!'); 8SJi~gV
put skip list(My_String); j?5s/
end Test; K'Gv+UC*6
!N, Oe<
-+#QZ7b
Prolog Vh%=JL
sK
goal Lm-yTMNPn
write("hello,world!"). FZUN*5`
WfnBWSA2T
5*Wo/%#q
Python d nZA+Pa
#!/usr/local/bin/python y.pwj~s
print "Hello, world!" ]<9KX} B
,qo"i7c{:
Wmm'j&hI
REXX w=ZSyT-i
say "Hello, world!" Q
db~I#}m'
-Fl;;jeX
?b}d"QsmU
Ruby zcn> 4E)
#!/usr/bin/ruby a{oG[e
print "Hello, world!\n" ^e<"`e
Pz=x$aY
Xup"gYTZQ
Scheme "r:i
(display "Hello, world!") D^R=
(newline) X4- _l$j
**].d;~[l
YlF<S49loC
sed (需要至少一行输入) YPq4VX,
sed -ne '1s/.*/Hello, world!/p' >?pWbL
BqF%2{
5x([fG
Smalltalk m1](f[$
Transcript show: 'Hello, world!' st|;]q9?
nUgZ]ag=G
9>@@W#TK~
SNOBOL J\WUBt-M
OUTPUT = "Hello, world!" @|N'V"*MT
END qUZm6)p6[a
I UMt^z
^rHG#^hA
SQL `|{6U"n
create table MESSAGE (TEXT char(15)); X =sC8E dx
insert into MESSAGE (TEXT) values ('Hello, world!'); zc}qAy'<
select TEXT from MESSAGE; \.@fAgv
drop table MESSAGE; 7K*\F}2)q
, Ww\C
VE
<p,IO
Tcl W.B>"u
#!/usr/local/bin/tcl 47GL[ofY
puts "Hello, world!" {~Q9jg(A
RB\0o,mw4
iyj,0T
TScript ?Re6oLm<B
? "Hello, world!" J ejDF*Q
?u*gKI
U',.'"m
Turing j@j%)CCM
put "Hello, world!" E[z8;A^:0
F5*NK!U
F"#8`Ps>
UNIX-style shell efK3{
程序中的/bin/sh可改为您使用的shell C(ay7
{*X8!P7C
#!/bin/sh T)!$-qdz/
echo 'Hello, world!' $?Et sf#*'
YY&3M
13:yaRo
GUI \Mi] !b|8
+PCsp'D
d
Delphi Usa
program HelloWorld; =LFrV9
uses Z#2AK63/T
Dialogs; W7j-siWJ
begin -T
s8y
ShowMessage('Hello, World!'); 9PU9BYBG
end. ]m>N!Iu
zW,Nv>Ac5
zoj3w|G
Nuva T:/68b*H\:
<. _cWz9 ;
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) ^m3[mY [a
.> #Cwzk{p(
<`'^rCWI?
AK#`&)0i
Visual Basic .7BB*!CP
MsgBox "Hello, world!" [P,/J$v^~
'或者 Ap{2*o
Print "Hello, world!" RpAtd^I
P3due|4M
#4?(A[]>H
Visual FoxPro ndsu}:my
? "Hello, world!" |5ifgSZ
UUzu`>upB
|o:[*2-
X11 .^?^QH3
用一个程序 #rE#lHo
DeMF<)#
xmessage 'Hello, world!' <])w@QOA#
f/FK>oUh
用C++和gtkmm 2 r N"P
IH
L$ nFRl&
#include <iostream> "8bxb
#include <gtkmm/main.h> l&