“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。 ?'9IgT[*
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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》。 X["xC3 i
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以下是用不同语言写成的Hello World程序的几个例子: W%-XN
Ada mV$ebFco0
with Ada.Text_Io; use Ada.Text_Io; 4n@lrcq(
procedure Hello is m(6d3P
begin Es%f@$0uy
Put_Line ("Hello, world!"); qul#)HI
end Hello; .t5.(0Xk[A
;54NQB3L
%BP>,E/w
汇编语言 k[;)/LfhS
N}K
[Q=
x86 CPU,DOS,TASM ?YLq
iAA
MODEL SMALL ~<m^
IDEAL r~j
[Qm"CJ
STACK 100H c{BAQZVc
wG3b{0
DATASEG f7lj,GAZ
HW DB 'Hello, world!$' yXJ25Axb
MMs~f*
CODESEG .4)oZ
MOV AX, @data -HG.GA
MOV DS, AX :~vodh
MOV DX, OFFSET HW At4\D+J{Vs
MOV AH, 09H |JxVfX8^
INT 21H 9Yv:6@. F
MOV AX, 4C00H %
D
INT 21H O
{1" I
END iM)K:L7d
:_~.Nt
3k`Q]O=OU
x86 CPU,GNU/Linux,NASM LV^^Bd8Ct
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). d8wVhZKI"
;Enter this into "hello.asm" then type: &aLTy&8Fv
;"nasm -f elf hello.asm" ~Ld5WEp k3
;"ld hello.o -o hello" , ~O>8VbF
;"./hello" Yi*F;V
&>,;ye>A
section .data ;data section declaration ctZ,qg*N
msg db 'Hello World!',0AH ,,gMUpL7_8
len equ $-msg ;string length iZ-R%- }B
3ic /xy;}
section .text ;code section declaration >8e)V
;
global _start ;entry point (start of execution) Mw/9DrE7/
_start: mov edx,len ;string length A'DFY {
mov ecx,msg ;string start I)Xf4FS@
mov ebx,1 ;file handle: stdout ]P0%S@]
mov eax,4 ;sys_write &v{#yzM
int 80h ;kernel system call gEd A
hfx
e0zP LU}
mov ebx,0 ;return value olE(#}7V
mov eax,1 ;sys_exit u
]e-IYH
int 80h ;kernel system call OlOOg
i/x |c!E
)4L2&e`k)(
x86 CPU,Windows,MASM32 kGYpJg9=
.386 k&ci5MpN
.model flat,stdcall ES~b f
option casemap:none u}[ a
;Include 文件定义 d_yvG.#C
include windows.inc aDF@AS
include user32.inc P}v
;d]
includelib user32.lib :>0ywg
include kernel32.inc pAE
(i7
includelib kernel32.lib e= IdqkJ%
;数据段 ]F4QZV(
M
.data ,|:.0g[n
szCaption db 'A MessageBox!',0 gwoe1:F:J
szText db 'Hello,world!',0 *#T:
_
;代码段 k83K2>]
.code HAxLYun(3w
start: mr\,"S-`
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK |nefg0`rk
invoke ExitProcess,NULL (,U|H`
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 0)ohab
end start 3^7+fxYWo
oMQ4q{&|
An.
A1y
AWK xE:jcA
d$}
BEGIN { print "Hello, world!" } D$hQ-K
4=L >
L|CdTRgRCB
BASIC $ZM'dIk?
传统版BASIC(例如GWBASIC): #n>U7j9`O
4z0gyCAC A
10 PRINT "Hello, world!" .l1x~(
20 END NnLK!Q
[ohLG_9
或在提示符输入: $hhXsu=
0cS$S Mn{
?"Hello, world!":END sgfqIe1
%R0 Wq4}
现代版BASIC(例如Quick BASIC): GW,EyOE+~
:#YC_
id
Print "Hello, world!" {rc3`<%
q<&1,^A
以下的语句在Quick BASIC中同样有效: .4zzPD$1
jJ#D`iog5
? "Hello,world!" k&$ov
d&+]@ Ii
& FhJ%JK
BCPL t1w5U+z
GET "LIBHDR" ^Ps!
FK^xZ?G
LET START () BE ``l*;}
$( ${Un#]g
WRITES ("Hello, world!*N") LCorT-
$) ?Q"andf
u7< +)6-
D$}hoM1
Befunge gi!_Nz
"!dlrow olleH">v m_)-
, c]4X`3]
^_@ #X-C~*|>j
dc)%5fV\
7{m>W!
Brainfuck ^*ZaqMA
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< :uCwWv
+++++++++++++++.>.+++.------.--------.>+.>. "\o#YC
.LDZqWr-
//7YtK6
C fd'kv
#include <stdio.h> +``vnC
]}L'jK
0
int main(void) T!c|O3m
{ #]}Ii{1?Y
printf("Hello, world!\n"); Kv@P Uzu
return 0; p1UloG\
} n41#
d5'Q1"{
syX?O'xJ
C++ DTezG':
#include <iostream> &|Gg46P7
H$I~Vz[\yb
int main() r2RJb6
{ +f/
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std::cout << "Hello, world!" << std::endl; b}qfOgd5
return 0; IBa0O|*6
} MLd;UHU
5M5Bm[X
|S8$NI2
C++/CLI wkp2A18n
int main() fI`Ez!w0
{ A%D'Z85
-
System::Console::WriteLine("Hello, world!"); !aT:0m$:9c
} %0Ur3
&~_F2]oM
u>
{aF{
C# (C Sharp) Qder8I
class HelloWorldApp D6VdgU|
{ SJiQg-+<Uf
public static void Main() &wQ;J)13
{ edL2ax
System.Console.WriteLine("Hello, world!"); !ZTghX}D
} PNm@mC_fh
} |+Wn5iT
|ke0G
-64lf-<
COBOL `3\aX|4@
IDENTIFICATION DIVISION. 2K:A4)jZ
PROGRAM-ID. HELLO-WORLD. AS;Sz/YP
N@|<3R!N*e
ENVIRONMENT DIVISION. [<XYU,{R
r?DCR\Jq
DATA DIVISION. 'l'3&.{Yfk
:ts3_-cr
PROCEDURE DIVISION. A+l(ew5Lw$
DISPLAY "Hello, world!". cSPQ
NYU:
STOP RUN. FJ0I&FyWs
KYiJXE[Q-
EDnNS
Common Lisp @r GY9%E
(format t "Hello world!~%") &2W"4SE]6
4Fp[94b
DdR0u0JH0
DOS批处理 e|k]te
@echo off QT c{7&
echo "Hello, world!" ]wid;<
kZ5#a)U<
\c\~k0u
Eiffel iy~h|YK;
class HELLO_WORLD v]SxZLa
)WoH>D
creation ST{Vi';}
make a_Xwi:e<
feature s*rR>D:
make is WOn53|GQK
local zQ+Mu^|u+
io:BASIC_IO {Zc8,jm
do 2Hd\>{*
!!io /l<(i+0
io.put_string("%N Hello, world!") N}#Rw2Vl
end -- make y`oj\
end -- class HELLO_WORLD (u tP@d^
+2iD9X{$MX
=][
)|n
Erlang RI*n]HNgy+
-module(hello). j
sPavY
-export([hello_world/0]). i8?oe%9l
gGP6"|tc4
hello_world() -> io:fwrite("Hello, World!\n"). ChK-L6
(xo`*Q,+
5Y+YN1
Forth yy3x]%KK
." Hello, world!" CR AFi_P\X
J$6WU z:?
1
*'
/B
Fortran g|Lbe4?
WRITE(*,10) bll[E}E|3
10 FORMAT('Hello, World!') *)RKU),3nL
STOP 6>]
END g**!'T4&o
OJu>#
@aQ:3/
HTML (GF}c\=T7
<HTML> _;3,
<HEAD> pFH.beY
<TITLE> Hello World! </TITLE> e%e.|+
</HEAD> OB.rETg
<BODY> yBy7d!@2
<p>Hello World!</p> {^1O
</BODY> {m*lt3$k
</HTML> [;wJM|Z J0
kTH""h{
jSpj6:@B
HQ9+ l,J>[Q`<
H s?HK2b^;D
vD8pVR+
%%K3J<5
INTERCAL Movm1*&=
PLEASE DO ,1 <- #13 P%:?"t+J`;
DO ,1 SUB #1 <- #238 ))AxU!*.
DO ,1 SUB #2 <- #112 l<1zLA~G
DO ,1 SUB #3 <- #112 ]$drBk86bh
DO ,1 SUB #4 <- #0 kSV(T'#x
DO ,1 SUB #5 <- #64 _".h(
DO ,1 SUB #6 <- #238 Z7bJ<TpZ
DO ,1 SUB #7 <- #26 `qJJ{<1&U
DO ,1 SUB #8 <- #248 QqQhQ GV
DO ,1 SUB #9 <- #168 f$FO 1B)
DO ,1 SUB #10 <- #24 ~R[ k^i.Y
DO ,1 SUB #11 <- #16 m]V#fRC
DO ,1 SUB #12 <- #158 *sldv
DO ,1 SUB #13 <- #52 ,Vq$>T@z
PLEASE READ OUT ,1 (eF[nfM
PLEASE GIVE UP QcrhgR
-Kg.w*\H7/
aB6/-T+u
Java f_)#
public class Hello -r,v3n
{ [s$x"Ex
public static void main(String[] args) ?;oJ=.T
{ `xx.,;S
System.out.println("Hello, world!"); pnuo;r s
} ~qZ6I)?
} :4AIYk=q
w)|9iL8
pfZ[YC-
JSP FdE?uw
<% '4M{Xn}@
out.print("Hello, world!"); m!KEK\5M?
%> NxF:s,a6
W! $U{=
x:0swZ5Z
MIXAL AM=> P7
TERM EQU 19 the MIX console device number d;<'28A
ORIG 1000 start address F5X9)9S
START OUT MSG(TERM) output data at address MSG :
jkO
HLT halt execution C7F\Y1Wj
MSG ALF "MIXAL" OCu_v%G0
ALF " HELL" gbYM1guiD
ALF "O WOR" FS5iUH+5
ALF "LD " =~J VU
END START end of the program iDcTO}
Zj -#"Gm
r-YJ$/J
Nuva 7vXP|8j
<..直接输出..> ~~|Iw=:
Hello, world! O[= L#wi
y0Gblza
<..或者..> ~S<aIk0l
{96MfhkeBv
<. q]yw",muT
// 不带换行 !U:&8Le
? "Hello, world!" D}
B?~Lls
~ Rk.x
+
// 或者 sCw>J#@2>
UF^[?M =
// 带换行 EVLL,x.~:z
?? 'Hello, world!' w0;4O)H$O
.> ;`^_9
K
x2t&Wpvt
g%Tokl
OCaml S`YT"|~
let main () = I!?Xq
print_endline "Hello world!";; Csy$1;"A
HI{q#
xTuJ~$(
Pascal m-$}'mEO
program Hello; b-/QZvg
begin @;Jv/N6@
writeln('Hello, world!'); pYzop4
end. dhA~Yu
2]?=\_T
=PY{Elf
Perl T16gq-h'
#!/usr/local/bin/perl $b2~Wj*-nJ
print "Hello, world!\n"; ]e),#_M
bK!h{Rr
C_>XtcU
PHP N@tKgx
<?php ~tWh6-:|{J
print("Hello, world!"); c_ncx|dUs
?> IV!`~\@
a9;KS>~bq
OQfFS+6
Pike T8Mqu`$r
#!/usr/local/bin/pike c*7|>7C$i
int main() G=[<KtWa
{ )bih>>H
write("Hello, world!\n"); , d $"`W2
return 0; m
W>Iib|
} >v, si].
6\I^]\YO
$adZ|Q\
PL/I y>w;'QR&a
Test: procedure options(main); &~+QPnI>Pm
declare My_String char(20) varying initialize('Hello, world!'); VO eVS&}
put skip list(My_String); n"RV!{&
end Test; ?ckV 2
"P#1=
Dfzj/spFV
Prolog XX/s@C
goal 17?YN<
write("hello,world!"). UJh;Hp:
BVeMV4
`dcz9 *
Python _b%)
#!/usr/local/bin/python W;=Ae~
print "Hello, world!" /;(ji?wN
Ur]$@N
v.<mrI#?
REXX hT 1JEu
say "Hello, world!" 'I/_vqp@
MZ$uWm`/
5C1EdQ4S0
Ruby Wgh@X B
#!/usr/bin/ruby WtZI1`\qe
print "Hello, world!\n" 1N(1h
D
5z0VMt
G`n
$A/9Q
Scheme -O\i^?lD;
(display "Hello, world!") TyIjDG6tM
(newline) Rs5 lL-I
`K5*Fjx
% Q6
za'25
sed (需要至少一行输入) ?[Y(JO#
sed -ne '1s/.*/Hello, world!/p' m=l'9j"D
M\4`S&
K [DpH&
Smalltalk t?G6|3
Transcript show: 'Hello, world!' 0c`zg7|
$4xSI"+M%
y&
yf&p
SNOBOL jG7PT66>;
OUTPUT = "Hello, world!" i:aW
.QZ.
END Q
>/,QX
seEo)m`d
gm)Uyr$
SQL <$e|'}>A
create table MESSAGE (TEXT char(15)); <7Pp98si,u
insert into MESSAGE (TEXT) values ('Hello, world!'); \fTQNF
select TEXT from MESSAGE; !\4B.
drop table MESSAGE; ? nW>'z
T#-;>@a}
la+Cra&xL
Tcl h97#(_wV>
#!/usr/local/bin/tcl 6qZ\^ U
puts "Hello, world!" A811VL^
ErNYiYLi]
Oq.ss!/z
TScript t([}a~1}
? "Hello, world!" =^u;uS[IW
{ V6pC
G~<UP(G
Turing GAgTy
put "Hello, world!" * $f`ouJl
}?9&xVh?\
ZEI,9`t!
UNIX-style shell jj[6 oNKE1
程序中的/bin/sh可改为您使用的shell fYUV[Gm
l{Df{1b.
#!/bin/sh JnsJ]_<
echo 'Hello, world!' r+Ki`HD%
O<cP1TF
;`#R9\C=h
GUI ;Z{D@g+
ElQ?|HsQ6p
Delphi 7v%c.
program HelloWorld; P'U2hCif
uses @ye!? %
Dialogs; D8Fi{?A#FV
begin VQla.Y
ShowMessage('Hello, World!'); +>q#eUS)
end. g.Xk6"kO
n6%`
<R$ 2x_
Nuva N;|^C{uz
<. sWYnoRxu
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) } jj)
.> hX{,P:d=f
w2nReB z
\2s`mCY
Visual Basic =D/zC'l
MsgBox "Hello, world!" O6;"cUv
'或者 tON>wmN
Print "Hello, world!" sFFQ]ST2p
a<G&}|6
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