“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。 ,?3G;-
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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》。 @ P|y{e6
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以下是用不同语言写成的Hello World程序的几个例子: 40/Y\
Ada ..qCPlK;
with Ada.Text_Io; use Ada.Text_Io; G?ZXWu.
procedure Hello is /NlGFO*Z
begin 2?5>o!C
Put_Line ("Hello, world!");
$k?>DP4
end Hello; ]q.0!lh+WL
s>en
/B3i C#?
汇编语言 rZF*q2?
KP"+e:a%
x86 CPU,DOS,TASM S:Hl/:iV
MODEL SMALL Si7*& dw=
IDEAL JLYi]nZ
STACK 100H Nl/dX-I
\lY_~*J
DATASEG *Ly6`HZ9
HW DB 'Hello, world!$' F{wzB
l}h!B_P'
CODESEG "tZe>>I
MOV AX, @data =D(j)<9$A
MOV DS, AX 0J|3kY-n>
MOV DX, OFFSET HW "4Nt\WQ
MOV AH, 09H \wZe] G%S
INT 21H YUb_y^B^
MOV AX, 4C00H Y2TtY;
INT 21H u
+hX
END b>W%t
hPh-+Hb
r%_djUd
x86 CPU,GNU/Linux,NASM =I<R! ZSN
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ~o(
;Enter this into "hello.asm" then type: ?< />Z)
;"nasm -f elf hello.asm" l}
/F*
;"ld hello.o -o hello" :/#rZPPF
;"./hello" 7v kL1IA
dG{A~Z z
section .data ;data section declaration 0@(&eH=
msg db 'Hello World!',0AH \RiP
len equ $-msg ;string length j.Hf/vi`z
osRy e3
section .text ;code section declaration p ?!/+
global _start ;entry point (start of execution) -"`=1l
_start: mov edx,len ;string length 7r!x1
mov ecx,msg ;string start %4H%?4
mov ebx,1 ;file handle: stdout QY/w
mov eax,4 ;sys_write r"
y.KD^
int 80h ;kernel system call O?2DQY?jT
uYN`:b8
mov ebx,0 ;return value l;Wj]
mov eax,1 ;sys_exit sT)CxOV
int 80h ;kernel system call 3$ pX
?9/G[[(
)0`C@um
x86 CPU,Windows,MASM32 OUnA;_
.386 :OT&
.model flat,stdcall E.h*g8bXe
option casemap:none 5xiEPh
;Include 文件定义 KNl$3nX
include windows.inc W?&%x(6M
include user32.inc iZmcI;?u
includelib user32.lib 4g/dP^
include kernel32.inc C!gZN9-
includelib kernel32.lib V`5O{Gg
;数据段 )J |6 -C
.data rv;3~'V
szCaption db 'A MessageBox!',0 P?<y%c<
szText db 'Hello,world!',0 _1^'(5f$
;代码段 \V:^h[ad
.code >_}
I.\X
start: qs6aB0ln
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK KvSG;
invoke ExitProcess,NULL buC{r,
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> x-c"%Z|
end start =1!
'QUc
HDKbF/
ddo#P%sH'
AWK 8Y3I0S
BEGIN { print "Hello, world!" } +RXoi2"-q@
/bEAK-
U&xUfBDt
BASIC Bwvc@(3v
传统版BASIC(例如GWBASIC): wEn&zZjx
u+T, n
10 PRINT "Hello, world!" xef7mx
20 END HAdm,
^(B*AE.
或在提示符输入: 5qko`r@#
c *no H[
?"Hello, world!":END o%7yhCY
a-=apD1RvG
现代版BASIC(例如Quick BASIC): |U0@(H
)QT+;P.
Print "Hello, world!" S?<Qa;
&*-2k-16
以下的语句在Quick BASIC中同样有效: [Xg"B|FD0
-OxHQ
? "Hello,world!" XjNu|H/
> kT~X ,o
6h%(0=^
BCPL 4{pa`o3
GET "LIBHDR" lB-7.
/jAs`"U
LET START () BE !T)>q%@ai
$( O&uOm:/(
WRITES ("Hello, world!*N") J^cDa|j
$) QkbN2mFv%
WP9=@X Z
V
Euv
Befunge *k -UQLJ
"!dlrow olleH">v 3 a`-_<
, K"61i:F
^_@ =*I9qjla[?
J4<*KL~a
3E#acnqn*
Brainfuck u{si
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< =T1i(M#
+++++++++++++++.>.+++.------.--------.>+.>. {2,V3*NF
M$w^g8F27H
`zQ2i}Uju
C x+? P/Ckg
#include <stdio.h> N3J T[7
z[zURj-*]
int main(void) R07 7eX
{ ]r]= Q"/5
printf("Hello, world!\n"); :Nry |
return 0; yeI((2L@E2
} O,$
?Pj6
@m#1[n;
#3fS_;G
C++ %Z:07|57I[
#include <iostream> $y2"Q,n+
vk^ /[eha
int main() ;z>?-
j
{ oo+nqc`,O
std::cout << "Hello, world!" << std::endl; PkqOBU*|=
return 0; +nLsiC{&
} Pc{0Js5VzE
`S&$y4|Vs
<`rl[C{
C++/CLI xs'vd:l.Pp
int main() !yfQ^a_O
{ KRL9dD,&
System::Console::WriteLine("Hello, world!"); Y[\ZN
} v ?9
*irYSTA$
Ah|,`0dw
C# (C Sharp) _NkVi_UX
class HelloWorldApp qYwEPGa\
{ L#\!0YW/@
public static void Main() b }^ylm
{ oD@~wcMIT0
System.Console.WriteLine("Hello, world!"); vz~QR i*
} 0Ud.u
} m\XgvpvrP
byyzXRO;
$_u9Y!
COBOL }uCC~ <^
IDENTIFICATION DIVISION. %GY U$aA
PROGRAM-ID. HELLO-WORLD. M?3Nh;
A-8[8J
ENVIRONMENT DIVISION. T&/ ]| 4
;QiSz=DyA
DATA DIVISION. 4"=(kC~~
#y?iUv
PROCEDURE DIVISION. sNF[-,a
DISPLAY "Hello, world!". G<8d=}
STOP RUN. oaK&!$S]
+ROwk
JIA'3"C
Common Lisp mfI>1W(
(format t "Hello world!~%") q#mw#Uw-
??7c9l5,
^1b/Y8&8A
DOS批处理 '0\v[f{K3G
@echo off da,Bnze0
echo "Hello, world!" y9#r
SA*
E76#xsyhF
6^'BhHP
Eiffel :O~*}7G
class HELLO_WORLD )Gu:eYp+`
5g$]ou
creation 8}^R jMgI
make FthrI
feature HKr6h?Si^
make is 9bDxml1
local N8Mq0Ck{$
io:BASIC_IO x7s75
do m>@$T
x
!!io u/D=&"tL
io.put_string("%N Hello, world!") p:,(r{*?
end -- make -9 AI@^q
end -- class HELLO_WORLD d45JT?qg&
Mb I';Mq
IEB|Y
Erlang k^pf)*p
-module(hello). 7[l
"=
-export([hello_world/0]). ~6nq$( #
>Ic)RPO9
hello_world() -> io:fwrite("Hello, World!\n"). pvJsSX
m|O7@N
@x>J-Owd]J
Forth i%+p\eeq*
." Hello, world!" CR p5!=Ur&Ac
3N) bJ
Og`6>?>97
Fortran xQ
`>\f
WRITE(*,10) Tn+6:<OFdO
10 FORMAT('Hello, World!') i#t)tM"
STOP /?%zNkcxu
END JkazB1h
0x Vue[ep
1&~u:RUXe
HTML (
w(GJ/g
<HTML> i0ax`37
<HEAD> @Y'BqDFlZ
<TITLE> Hello World! </TITLE> >A#wvQl7
</HEAD> ST3aiyG
<BODY> 7z'l}*FRD
<p>Hello World!</p> ?Gc9^bB I
</BODY> =dD<[Iz6
</HTML> @Iz vObK
kAbRXID
Ycypd\q/
HQ9+ *ktM<N58
H 'v.i' 6
6D,xs}j1
Qi',[Xmf
INTERCAL nS0K&MH6B
PLEASE DO ,1 <- #13 .L[WvAo
DO ,1 SUB #1 <- #238 ^'Wkb7L
DO ,1 SUB #2 <- #112 !> T.*8
DO ,1 SUB #3 <- #112 w*[i!i
DO ,1 SUB #4 <- #0 `f`\j
-Lu
DO ,1 SUB #5 <- #64 !4cR&@[
DO ,1 SUB #6 <- #238 z5-vx `
DO ,1 SUB #7 <- #26 jPg 8>Z&D
DO ,1 SUB #8 <- #248 |LA./%U
DO ,1 SUB #9 <- #168 _7>$'V{
DO ,1 SUB #10 <- #24 \D(6t!Ox
DO ,1 SUB #11 <- #16 vwDnz/-
DO ,1 SUB #12 <- #158 ;Pik},
DO ,1 SUB #13 <- #52 ?ihkV?;)
PLEASE READ OUT ,1
=,&PD(.
PLEASE GIVE UP &gxRw l
y?j#;n 0
VqqI%[!Aw
Java ve[` 0
public class Hello s^+h>
{ I\E`xkbBu
public static void main(String[] args) Q!8AFLff4
{ U 2am1}
System.out.println("Hello, world!"); xo2PxUO
} 4b]/2H
} -(9>{!",J
m UY+v>F
+-YMW;5
JSP -Yx'qz@
<% N"SFVc_2
out.print("Hello, world!"); 0o~? ]C
%> |}s)Wo
.lnyn|MVb
SyFw
MIXAL ;sd[Q01
TERM EQU 19 the MIX console device number h>\T1PM
ORIG 1000 start address _N!L?b83P
START OUT MSG(TERM) output data at address MSG " &2Kvsz
HLT halt execution {I'8+~|pZL
MSG ALF "MIXAL" -7E)u
ALF " HELL" KMC]<
ALF "O WOR" 6;s.%W
ALF "LD " ~ 8L]!OQ9=
END START end of the program lId}sf
<q@/Yy32
fA"N5qQI(
Nuva ;e,_F/@`
<..直接输出..> v2=Iqo
Hello, world! o[=h=&@5p
6.#5Ra
<..或者..> I*h%e,yIO
]QM{aSvXA
<. `D
*U@iJ
// 不带换行 2;8I0BH*'
? "Hello, world!" GJTKqr|1O
$MW-c*5a
// 或者 #B_Em$
.T!R]n
// 带换行 {B;<R1
?? 'Hello, world!' h\qQ%|X
.> sd(Yr6~..
R1,.H92
o 8fB
OCaml [K 5#4k
let main () = MxXf.iX&
print_endline "Hello world!";; XSfl'Fll D
FJI%+$]
(w1M\yodV
Pascal ,Z3 (`ftC
program Hello; dSdP]50M
begin l g0 'qH8
writeln('Hello, world!'); s)dL^lj;
end. B|fh 4FNy
J&hzr t
M53{e;.kN
Perl T
O]wD^`
#!/usr/local/bin/perl ^<$$h
print "Hello, world!\n"; >]ghme
s%cfJe_k
K3Sa6"U
PHP rT#2'-f
<?php k vuSE
print("Hello, world!"); G5l?c@o
?> w4AA4u
jV|j]m&t
s^&Oh*SP*
Pike eb#yCDIC
#!/usr/local/bin/pike 4uX|2nJ2!;
int main() }CM</
{ -J6G=+s/
write("Hello, world!\n"); RV=Z$
return 0; V7gv@<1<y
} &s{" Vc9]
fO UW{s
TXWYQ~]3w
PL/I S-
N
[
Test: procedure options(main); 8mc0(Z@
declare My_String char(20) varying initialize('Hello, world!'); h>a/3a$g
put skip list(My_String); <i$ud&D
end Test; m~f J_
SDbR(oV
yQ03&{#
Prolog C$x
r)_
goal b%TLvV 9F
write("hello,world!"). c $fYK
2R`dyg
[-p?gyl
Python IQ]tcSQl
#!/usr/local/bin/python DkA@KS1Dq
print "Hello, world!" n#
4e1n+I
C[JGt9{Y
S)\Yc=~h
REXX h?-*SLT
say "Hello, world!" 84f~.45
&a9Y4~e::
t,IQ|B&0
Ruby Q13>z%Rge
#!/usr/bin/ruby w7e+~8|
print "Hello, world!\n" $v\o14v
_0Z8V[
&57s//PrX
Scheme ;56mkP
(display "Hello, world!") %SC%#_7
(newline) :YUQKy
Z[%vO?,
_!C M
sed (需要至少一行输入) ,b'QL6>`
sed -ne '1s/.*/Hello, world!/p' %|o2d&i
LEJn
1
O!ngQrI
Smalltalk "8*5!anu-
Transcript show: 'Hello, world!' |HfN<4NL
zcCGREe=
-P>up)p
SNOBOL v[!ZRwk4w3
OUTPUT = "Hello, world!" p;P
cD
END Scz/2vNi`
586lN22xM
}WM!e"
SQL >pj)va[Q
create table MESSAGE (TEXT char(15)); =&x
u"V
insert into MESSAGE (TEXT) values ('Hello, world!'); b3^d!#KVM
select TEXT from MESSAGE; "3e1 7dsY
drop table MESSAGE; IRY/0v
p`T,VU&.
CU_8
`}
Tcl K['Gp>l
#!/usr/local/bin/tcl GSa U:A
puts "Hello, world!" CMviR<.
@z<IsAE
x!;;;iS
TScript `#y?:s]e
? "Hello, world!" [`_-;/Gx2
7Ug^aA
du_TiI
Turing )Bpvi4O
put "Hello, world!" $ i;_yTht
+~f5dJyk`
E)]RQ~jY?
UNIX-style shell B0$.oavC
程序中的/bin/sh可改为您使用的shell Kl]LnN%A{
O~&j}WN
#!/bin/sh `VD7VX,rp*
echo 'Hello, world!' f3"sKL4|
JxLSQ-"
Mv7=ZAm
GUI B(qwTz 51
?i5=sK\
Delphi Zg/
],/ `
program HelloWorld; thrv_^A
uses @@} ]qT*
Dialogs; @r9[&
begin DE!P[$J
ShowMessage('Hello, World!'); ql(~3/kA_
end. b_>x;5k
z-G*:DfgH
Ys+NIV#Q
Nuva #[yZP9
<. !<= ^&\A
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) ~~h@(2/Q>x
.> Isa]5>
>P7|-bV
iV8j(HV
Visual Basic -5 -X[`cF
MsgBox "Hello, world!" ZqaCe>
'或者 p4k*vuu>
Print "Hello, world!" ]AlRu(
tOn_S@/r
ps:|YR
Visual FoxPro pVTx#rY
? "Hello, world!" ]V!q"|
`>^2MHF3LT
!"\UT&