“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。 3[aCy4O
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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》。 D_(xhM
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以下是用不同语言写成的Hello World程序的几个例子: S1*n4w.H
Ada :!'aP\uE
with Ada.Text_Io; use Ada.Text_Io; X^r HugQ
procedure Hello is r9z/hm}E
begin bgL`FW i3
Put_Line ("Hello, world!"); ~z%K9YcyU
end Hello; IWsB$T
`A$yF38!
mEr*n
汇编语言 ub0]nov
buG0#:
x86 CPU,DOS,TASM ~'=s?\I
MODEL SMALL ko$bCG%
IDEAL 9bq#&~+
STACK 100H F=$2Gz
'RT
={YW*1Xw
DATASEG 9Clddjf?c
HW DB 'Hello, world!$' <eI7xifD
f-tjMa /_
CODESEG thl{IU
MOV AX, @data # ]&=]K1V
MOV DS, AX <Y9((QSM4
MOV DX, OFFSET HW _:?)2 NV
MOV AH, 09H ]aXCi"fMs
INT 21H 8'@pX<
MOV AX, 4C00H W2qW`Ujo{
INT 21H =>n:\_*M
END xaAJ>0IM
?)'j;1_=E3
#ZeZs 31
x86 CPU,GNU/Linux,NASM DNq=|?qn]
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). o5@
l!NQ
;Enter this into "hello.asm" then type: Q!zg=_z-
;"nasm -f elf hello.asm" |wQ|h$|
;"ld hello.o -o hello" w91{''sK
;"./hello" `BdZqXKG
mc~d4<$`!
section .data ;data section declaration VfAIx]Fa
msg db 'Hello World!',0AH vZq7U]RW
len equ $-msg ;string length &d[&8V5S
u&9|9+"N
section .text ;code section declaration i/NY86A
global _start ;entry point (start of execution) cRDjpc]
_start: mov edx,len ;string length ,AhQA
mov ecx,msg ;string start c<r`E
mov ebx,1 ;file handle: stdout ''s]6Jjw
mov eax,4 ;sys_write )PVX)2P_C
int 80h ;kernel system call 593D/^}D
`7LN?-
T
mov ebx,0 ;return value 4?jXbC k~x
mov eax,1 ;sys_exit r8pTtf#Q
int 80h ;kernel system call ?9i
7w1`
sX^m1v~N|
M%/ML=eLi
x86 CPU,Windows,MASM32 /<\>j+SC
.386 w*e O9k
.model flat,stdcall K%Vl:2#F
option casemap:none ICTl{|i ]
;Include 文件定义 TWK(vEDM
include windows.inc ZUVk~X3
include user32.inc L*6Tz'Qp
includelib user32.lib bP`yLz
include kernel32.inc .fk!~8b[Q+
includelib kernel32.lib Ha)eeE$
;数据段 6(f[<V!r
.data UW8b(b[-6b
szCaption db 'A MessageBox!',0 9mIq9rQ|*
szText db 'Hello,world!',0 V)^nVD)e
;代码段 ;Bd0 =C
.code r%}wPN(?D
start: sV@kQ:
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK q%]0%S?
invoke ExitProcess,NULL ,/BBG\mJ
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> \Se>u4~L
end start BXiuVx
#6[FGM
=mxmJFA
AWK ,ic.b
@u1
BEGIN { print "Hello, world!" } )wQR2$x~
s_yY,Z:
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BASIC }b~;x6
传统版BASIC(例如GWBASIC): MW=2GhD=
\(R(S!xr_
10 PRINT "Hello, world!" Z,.*!S=?h
20 END Vf`n>
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或在提示符输入: BI?M/pIm
]d&6 ?7 !>
?"Hello, world!":END X<9jBj/t
cfyN)#9
现代版BASIC(例如Quick BASIC): M;ac U~J
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Print "Hello, world!" Q+*o-
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以下的语句在Quick BASIC中同样有效: 2VyLt=mdh
f*04=R?w7>
? "Hello,world!" w8:~LX.n
1tHTjEG4^3
8QV+DDZx
BCPL RcitW;{|Kg
GET "LIBHDR" ;]3Tuq
,YX[6eZr
LET START () BE N9 3
ZI|T
$( kep.+t[
WRITES ("Hello, world!*N") ~v$gk
$) m/r4f279
8
C @iD%
^|5bK_Z&
Befunge )s4#)E1
"!dlrow olleH">v ,kfUlv=
, eVL'Ao&Ho
^_@ M]oO1GM
`So*\#\T
`{s:lf
Brainfuck t5G@M&d4Eo
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 3N|,c]|
+++++++++++++++.>.+++.------.--------.>+.>. /!rH DcR
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C J'`,];su
#include <stdio.h> /KFCq|;7s,
*aT3L#0(
int main(void) zpx
{ ^P
>; %
printf("Hello, world!\n"); fn>MOD!l
return 0; 6":=p:PT.
} r 'wam]1Z
R_eKKi@VH
l 3bo
C++ BFc=GiPnQ
#include <iostream> # kl?ww U
%|bqL3)a_
int main() U@x5cw:
{ ^\Gaf5{
std::cout << "Hello, world!" << std::endl; 48nZ
H=(Eh
return 0; ^5x\cR
} A6YkoYgC
Wg9q_Ql
v>CAA"LH
C++/CLI 4zX@TI>j
int main() zL$$G,
{ z)I.^
System::Console::WriteLine("Hello, world!"); T|`nw_0
} A I}29L3C
fT9$0:eO
PB*mD7"
C# (C Sharp) /co^swz
class HelloWorldApp CKeT%3
{ gF,9Kv~
public static void Main() Xn^gxOPM
{ ZG+8kt!w
System.Console.WriteLine("Hello, world!"); eS{lr4-]
} E8j>Toz
} {{w5F2b((%
c,-3+b
o Mk6ZzZ,>
COBOL c L}}^
IDENTIFICATION DIVISION. MgyV{`
PROGRAM-ID. HELLO-WORLD. ZE863M@.
T+7-6y+ d
ENVIRONMENT DIVISION. 6 Ty;m>j
9;KQ3.Fa}q
DATA DIVISION. wGD*25M7$
bII pJQ1.[
PROCEDURE DIVISION. XgE\q
DISPLAY "Hello, world!". *o <S{
STOP RUN. ' ^L|}e
.6z8fjttOC
~{lSc/SP|
Common Lisp feSd%
(format t "Hello world!~%") KvW{M
C)66^l!x
P Llad\
DOS批处理 Y3^UJe7E
@echo off p(o"K@I
echo "Hello, world!" #InuN8sI
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}xXUCU<
Eiffel |#G.2hMFr
class HELLO_WORLD _dCdyf
>qkZn7C
creation CR3<9=Lv>
make YQGVQ[P
feature [vCZoG8+>
make is k'Is]=3
local 91'i7&~xdG
io:BASIC_IO KG7 ~)g
do %i[G6+-
!!io d^AXhQjQN-
io.put_string("%N Hello, world!") \>,[5|GU
end -- make *9Eep~ 6
end -- class HELLO_WORLD
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2H+!78
_M[@a6?
Erlang !0i6:2nw
-module(hello). t&m8 V$Q
-export([hello_world/0]). 3[`/rg,
KU:RS+,e;
hello_world() -> io:fwrite("Hello, World!\n"). mN+
w,
TKJs'%Q7F6
IqEE.XhaK
Forth zpi
Q ;P
." Hello, world!" CR x -CTMKX
fL-lx-~
pK/r{/>r
Fortran oihn`DY{
WRITE(*,10) iF0x>pvJ@
10 FORMAT('Hello, World!') PX!$w*q
STOP gt]k#(S
END ZbBz@1O
]=Im0s
SLI(;, s
HTML ,6N|?<26O
<HTML> .T;:6/??1
<HEAD> $#2zxpr,
<TITLE> Hello World! </TITLE> Jc8^m0_
</HEAD> ^!a4!DGVT
<BODY> l;F\s&^
<p>Hello World!</p> m/M=.\]
</BODY> ~@Yiwp\"
</HTML> +r8:t5:/I
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&|6 A
8,
HQ9+ 'F-;uN
H #GoZH?MAF
7S^ba
s0EF{2<F
INTERCAL OGA_3|[S
PLEASE DO ,1 <- #13 @-B)a Z
DO ,1 SUB #1 <- #238 al#BfcZW
DO ,1 SUB #2 <- #112 =17d7#-
DO ,1 SUB #3 <- #112 R9+0ZoS
DO ,1 SUB #4 <- #0 K+WbxovXU
DO ,1 SUB #5 <- #64 w8(8n&5
DO ,1 SUB #6 <- #238 vMD%.tk
DO ,1 SUB #7 <- #26 9x4%M&<Z9a
DO ,1 SUB #8 <- #248 F"|OcKAA}h
DO ,1 SUB #9 <- #168 0[\sz>@
DO ,1 SUB #10 <- #24 >]/RlW[
DO ,1 SUB #11 <- #16 0Wd2Z-I
DO ,1 SUB #12 <- #158 C_5o&O8Bc
DO ,1 SUB #13 <- #52 Ufw_GYxan
PLEASE READ OUT ,1 kh7RQbNY<I
PLEASE GIVE UP ([g[\c,H
kJP`C\4}f
E}qW'
Java d1[;~)
public class Hello U!y GZEU"[
{ ;,WI_iP(w
public static void main(String[] args) /-FvC^Fj
{ MP
LgE.n
System.out.println("Hello, world!"); ?**9hu\BG
} Jam&Rj,
} ^Kbq.4
u)X]]6YJ
:ebu8H9f%
JSP #aHJ|[[(n
<% $V/Hr/0
out.print("Hello, world!"); 4`X]$.
%> b7uxCH]Z
Cf~vT"
;xXD2{q
MIXAL ffH]`N
TERM EQU 19 the MIX console device number P*
Z1Rs_
ORIG 1000 start address JKjVrx>
@
START OUT MSG(TERM) output data at address MSG *#y9 Pve
HLT halt execution FN+x<VXo(
MSG ALF "MIXAL" z<I@SI^>
ALF " HELL" r$Tu``z \
ALF "O WOR" $*\GZ$y>
ALF "LD " /s~(? =qYH
END START end of the program u-/5&Endb
c'!+]'Lr
Vb57B.I
Nuva )i^+=TZ q
<..直接输出..> vB?(|
Hello, world! v?@=WG
t3l-]
<..或者..> S Boi|
0F5QAR
O
<. a#pM9n~a
// 不带换行 -J&
b~t@
? "Hello, world!" W Te1E, M
AqZ()p*z
// 或者 )x<oRHx]
)k~{p;Ke
// 带换行 n/ CP2A
?? 'Hello, world!' SHA6;y+U/~
.> 6uu49x_^L4
p=T6Ix'_2e
BD_"w]bqD
OCaml IW>\\&pJ
let main () = 8ioxb`U
print_endline "Hello world!";; Hw\hTTK
IM(=j
D:56>%y@
Pascal M> rertUR
program Hello; cT.8&EEW
begin IxU#x*
writeln('Hello, world!'); 6j6P&[
end. @xkI?vK6
m\"X%Y#
na`8ulN_
Perl Aq*,cOF+
#!/usr/local/bin/perl FdE9k\E#/)
print "Hello, world!\n"; G0mvrc-(
m`!Vryf
D>6vI
PHP *7`amF-
<?php @|;XDO`k;
print("Hello, world!"); hmES@^n!_
?> NGp^/PZX0
}nt,DG!r
!#TM%w
Pike k:0nj!^4w>
#!/usr/local/bin/pike J,_IHzO~Z
int main() @"vTz8oY@
{ q6T>y%|FZ
write("Hello, world!\n"); C%QC^,KL
return 0; eFz!`a^dX
} 52v@zDY
[E:-$R
rXF=/
PL/I |QO)xEn~
Test: procedure options(main); r34 GO1d
declare My_String char(20) varying initialize('Hello, world!'); J]gtgt^
put skip list(My_String); Rap =&
end Test; j=V2~
xA6
V5up/ 6b,1
HI!bq%TZ4
Prolog dx)v`.%V
goal
3F\UEpQ
write("hello,world!"). :}+m[g
`XK+Y
&?0hj@kd~
Python wrEYbb
#!/usr/local/bin/python `\Hs{t]
print "Hello, world!" x-Fl|kwX.5
|n %<p
*OR(8;
REXX e=4k|8 G
say "Hello, world!" _Z3_I_lW
V?C_PMa
?{KC@c*c
Ruby W<OO:B.ty
#!/usr/bin/ruby {3kI~s
print "Hello, world!\n" ECf
$
i=s>a;*#
JNSH'9!n6
Scheme H\RuYCn2G
(display "Hello, world!") F^}n7h=qk
(newline) $-R9J6NN
1Jn:huV2
Xb5$ijH
sed (需要至少一行输入) ;h#nal>w@S
sed -ne '1s/.*/Hello, world!/p' ((E5w:=?
}ej-Lu,b3
OJ4-p&1
Smalltalk 5c+7c@.
Transcript show: 'Hello, world!' 1`I#4f
Oo`b#!L
^
^R4%C
SNOBOL n 7m!
OUTPUT = "Hello, world!" gA~faje
END liG3
G[[NDK
K)n0?Q_>
SQL pgU4>tyD
create table MESSAGE (TEXT char(15)); 9KLhAYaq
insert into MESSAGE (TEXT) values ('Hello, world!'); lL6qK&;
select TEXT from MESSAGE; J"O#w BM9
drop table MESSAGE; j,CMcP7A -
gKay3}w
`@r#o&
Tcl y1zep\-D
#!/usr/local/bin/tcl Ea2&7
puts "Hello, world!" dL!K''24{
p!w}hB598
k.CHMl]
TScript > [|SF%
? "Hello, world!" k%v/&ojI
D$[/|%3
kzcD}?mSS
Turing M"$TXXe
put "Hello, world!" ;r
XhK$
%D:5 S?{
4uUR2J
UNIX-style shell q{t"=@lX01
程序中的/bin/sh可改为您使用的shell `O/RNMaC
m
K@a7fF?
#!/bin/sh v__;oqN0
echo 'Hello, world!' dj0`Q:VZ
/@\3#2;
v^_<K4N`
GUI 5 cE!'3Y
)iG+pP@.@
Delphi K\GIh8L
program HelloWorld; 5"JnJH
uses MB,P#7|
Dialogs; f3]u-e'b
begin oNV(C'A
ShowMessage('Hello, World!'); @5# RGM)5^
end. ]\:FFg_O6t
{\HE'C/?
,As78^E{
Nuva !%2aw0Yv
<. +6*
.lRA
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) AH(O"v`
.> N#`aVW'{v2
.iL_3:6f
K{00 V#
Visual Basic x{|n>3l`b9
MsgBox "Hello, world!" uPpRzp
'或者 dsxaxbVj%
Print "Hello, world!" D|D1`CIM
8c'0"G@S
%KmB>9
Visual FoxPro _(\\>'1q!
? "Hello, world!" |KFWW
\'L6m1UZ%
D{,B[5
X11 " lf_`4
用一个程序 ]41G!'E=
uhLg2G^h
xmessage 'Hello, world!' ab 1\nzpd
&xqe8!FeA
用C++和gtkmm 2 : |c,.uO
:l>T~&/98
#include <iostream> cF[[_
#include <gtkmm/main.h> B|O/h!H.
#include <gtkmm/button.h> qt}[M|Q^r
#include <gtkmm/window.h> qpl "j-
using namespace std; s geP`O%
<>JDA(F"
class HelloWorld : public Gtk::Window !P!|U/|c
{ [VPqI~u5)
public: ytmlG%
HelloWorld(); 1*r{%6
virtual ~HelloWorld(); FK#>E[[
protected: lm&C!{K
Gtk::Button m_button; G<