“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。 8Ac:_Zg
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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》。 AF%@VLf
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以下是用不同语言写成的Hello World程序的几个例子: l'eyq}&
Ada Jkek-m
with Ada.Text_Io; use Ada.Text_Io; #_u~/jhX
procedure Hello is ,{mCf^
begin s~Te
Put_Line ("Hello, world!"); MNV%
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end Hello; (P$H<FtH
' MxrQ;|S
)+6MK(<"
汇编语言 4F{70"a
E@b(1@
x86 CPU,DOS,TASM 5s].
@C8
MODEL SMALL |)*fRL,
IDEAL )>Yu!8i
STACK 100H $b mLu=9
X93!bB
DATASEG SBS3?hw
HW DB 'Hello, world!$' pS7w' H
- RU=z!{
CODESEG 7yh/BZ1
MOV AX, @data s']Bx=
MOV DS, AX >o=-$gz`
MOV DX, OFFSET HW (R("H/6xs
MOV AH, 09H #%h-[/
INT 21H (:>,u*x%
MOV AX, 4C00H L}pt)w*V1j
INT 21H 4v{o
END ZG&>:Si;
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ys kO
x86 CPU,GNU/Linux,NASM K42K!8$
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). }|8_9Rx0*
;Enter this into "hello.asm" then type: Y<%@s}zc
;"nasm -f elf hello.asm" /x
p|
;"ld hello.o -o hello" *(T:,PY
;"./hello" i=oU;7~zK
t!_<~
section .data ;data section declaration t,+nQ9
msg db 'Hello World!',0AH NdD`Hn-
len equ $-msg ;string length HK0!P*
'$ t
section .text ;code section declaration lSVp%0jR
global _start ;entry point (start of execution) )x=1]T>v"'
_start: mov edx,len ;string length GE%Z9#E
mov ecx,msg ;string start "ozr+:#\
mov ebx,1 ;file handle: stdout DrY:9[LP
mov eax,4 ;sys_write e9U9Uu[
int 80h ;kernel system call Xx0hc 8qd
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t'jk6
mov ebx,0 ;return value @a0DT=>dT
mov eax,1 ;sys_exit sl`s_$J
int 80h ;kernel system call ?FpWvyz|
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l:,'j@%
x86 CPU,Windows,MASM32 {CGUL|y
.386 tne ST.
.model flat,stdcall 8"8t-E#?
option casemap:none p;3O#n-_
;Include 文件定义 f$Fhf?'
include windows.inc #Oc]
@
include user32.inc DN-+osPi
includelib user32.lib gv-xm
include kernel32.inc c]n1':FT"
includelib kernel32.lib p'*>vk
;数据段 Eg#K.5hJ
.data irFMmI b
szCaption db 'A MessageBox!',0 /v1Q4mq
szText db 'Hello,world!',0 =S+wCN
;代码段 mD$A4Y-'p
.code N~goI#4
start: }Qn&^[[miL
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK mS$j?>m
invoke ExitProcess,NULL .f%fHj
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> :8=i kwQ
end start Ln')QN
Tc>
8dZSi
AWK >z{d0{\
BEGIN { print "Hello, world!" } JQ8fdP A
AS'R?aX|C
Wuc S:8#|
BASIC lYVz3p
传统版BASIC(例如GWBASIC): jnK WZ/R
~dgDO:)
10 PRINT "Hello, world!" ,Ys %:>?
20 END NO "xL,
`#F{Waww'
或在提示符输入: ;f0I
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y~AVei&
?"Hello, world!":END c}Ft^Il
a
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现代版BASIC(例如Quick BASIC): p4.wh|n
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Print "Hello, world!" Cc+t}"^
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以下的语句在Quick BASIC中同样有效: .zA^)qgL
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? "Hello,world!" dA@]!
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GY6`JWk
BCPL f=(?JT
GET "LIBHDR" /\ y?Y
tvkb~
LET START () BE \8)U!9,$nn
$( *xx'@e|<;
WRITES ("Hello, world!*N") 1tEgl\u\
$) *W4m3Lq
/[a~3^Gs^
J`peX0Stl
Befunge A>vBQN
"!dlrow olleH">v 4x{0iav
, _GXk0Ia3`
^_@ rXmn7;B}g
nHnK)9\ N
Pu7_
v
Brainfuck *rM^;4Zt
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 1Ce@*XBU
+++++++++++++++.>.+++.------.--------.>+.>. 6LOnU~l,
!POl;%\
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C `>7;!
#include <stdio.h> AsQ)q
o1-m1 <ft
int main(void) y~Bh
{ h%o%fH&F!
printf("Hello, world!\n"); 8qk?E6
return 0; Pj#<K%Bz
} $h2){*5E{
8|):`u
:Ux?,
C++ "W=AB&
#include <iostream> -|J"s$yO4
bV(Y`g
int main() G<At_YS
{ @E;=*9ek{u
std::cout << "Hello, world!" << std::endl; Y#!UPhg<
return 0; x*![fK
} na#CpS;pc
]p _L)
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C++/CLI 33o9Yg|J~
int main() t|H^`Cv6
{ Ov};e
System::Console::WriteLine("Hello, world!"); 9*2[B"5
} =@m &s^R
c2h{6;bfY
$&y%=-] |
C# (C Sharp) 7R`M,u~f2^
class HelloWorldApp GS0;bI4ay
{ a;rdQ>
public static void Main() b1^vd@(lx
{ KX!T8+Y
System.Console.WriteLine("Hello, world!"); NhfJ30~
} V `b2TS
} zAK+8{,
^$%S &W
8B7cBkl:
COBOL ]=.\-K
IDENTIFICATION DIVISION. *v;!-F&8>
PROGRAM-ID. HELLO-WORLD. /mXBvY
B\<Q ;RI2;
ENVIRONMENT DIVISION.
*-+&[P]m
3;)>Fs;
DATA DIVISION. d_AK`wR
x4g3rmp
PROCEDURE DIVISION. {FO;Yg'
DISPLAY "Hello, world!". 8MK>)P o)
STOP RUN. }XZ'v_Ti
~3UQ|j
6Se?sHC>
Common Lisp YCdS!&^UN
(format t "Hello world!~%") sJ#4(r`
ln$&``L
\qR7mI/*
DOS批处理 .clP#r{U
@echo off QZ4v/Ou
echo "Hello, world!" _6_IP0;
wQv'8A_}
DamCF
Eiffel UQ8M~x5$3%
class HELLO_WORLD ]Gpxhg
D5$wTI
creation E>&n.%
make |s)Rxq){"V
feature 3Th'p aMG
make is {xwm^p(f
local /4t j3B,
io:BASIC_IO cYFiJJLG]
do _Bj)r}~7#
!!io e.]K L('
io.put_string("%N Hello, world!") EzDk}uKY0R
end -- make e@c0WlWa
end -- class HELLO_WORLD J+[_Wd
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7Ok;Lt!x
Erlang =NOH:#iQ
-module(hello). pV.Av
-export([hello_world/0]). k:*S&$S!E
umD!2
w
hello_world() -> io:fwrite("Hello, World!\n"). km)zMoE{c{
z."a.>fPaO
, 3,gG"
Forth pcau}5 .
." Hello, world!" CR J%x6
RMX:9aQ3F
W`K7 QWV4
Fortran 0QPH}Vi5}
WRITE(*,10) dA@'b5N{"
10 FORMAT('Hello, World!') S?RN?1
STOP ~vs}.kb
END 5V5%/FUm
;w'D4p= P
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HTML 8d?g]DEN)6
<HTML> A6GE,FhsG
<HEAD> ~7Ts_:E-
<TITLE> Hello World! </TITLE> GN-mrQo
</HEAD> 7s"<
'cx_F
<BODY> ~2<7ZtV=
<p>Hello World!</p> w:s]$:MA8
</BODY> uvtF_P/
</HTML> i-bJS6
U"q/rcA
At flf2 K
HQ9+ 8CnRi
H 8#(Q_
=:D aS`~V
M%1}/!J3
INTERCAL H2Z1TIh
PLEASE DO ,1 <- #13 I?"q/Ub~h
DO ,1 SUB #1 <- #238 Gqcq,_?gt
DO ,1 SUB #2 <- #112 A]YVs
DO ,1 SUB #3 <- #112 4!+pc-}-
DO ,1 SUB #4 <- #0 V6t,BJjS
DO ,1 SUB #5 <- #64 , #U.j
DO ,1 SUB #6 <- #238 vJ\pR~?
DO ,1 SUB #7 <- #26 e?_@aa9~@{
DO ,1 SUB #8 <- #248 F;=4vS]\
DO ,1 SUB #9 <- #168 (4'$y`Z
DO ,1 SUB #10 <- #24 5m?8yT}
DO ,1 SUB #11 <- #16 9so6WIWc
DO ,1 SUB #12 <- #158 =
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DO ,1 SUB #13 <- #52 }Z{=|rVE
PLEASE READ OUT ,1 *c%oN
|
PLEASE GIVE UP bx]N>k J
F#5B<I
xEf'Bmebk
Java 0$7s^?G0
public class Hello mjWU0Gh%*
{ 66.5QD0
public static void main(String[] args) G
16!eDMt
{ N@O8\oQG
System.out.println("Hello, world!"); w QNxL5B
} @;<ht c
} X@k`3X
U
f|>
(C
\[gReaI
JSP fO0(Z
<% A,%C,*)Cg
out.print("Hello, world!"); ]%BWIqbr
%> n) k1
{e+-vl
,WJH}(h"D
MIXAL <$ F\Nk|x
TERM EQU 19 the MIX console device number Si_%Rr&jW
ORIG 1000 start address $/=nU*pd
START OUT MSG(TERM) output data at address MSG @+9<O0
HLT halt execution 0
;b[QRmy
MSG ALF "MIXAL" v^ zu:Z*
ALF " HELL" rS4@1`/R
ALF "O WOR" VH=S?_RY>
ALF "LD " W
D
T]!
END START end of the program N\HQN0d9
Eh =~T9
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Nuva M/):e$S
<..直接输出..> l5g$vh\aQ]
Hello, world! ?Y:8eD"*
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<..或者..> ~(pmLZ<GW}
[8Qro8
<. =QK$0r]c'k
// 不带换行 -T&.kYqnb$
? "Hello, world!" `)T~psT
>m#e:[N
// 或者 K]j0_~3s
e|&6$A>4]
// 带换行 oyNSh8c7c
?? 'Hello, world!' .\8X[%K9nc
.> 3/b;7\M
UN%Vg:=
Pt&(npjN,
OCaml %e`$p=m
let main () = IBQ@{QB
print_endline "Hello world!";; sf]s",t~J
o$[z],RO
{5d9$v7k4
Pascal M)+$wp
program Hello; FJ %
begin *J+_|_0nlW
writeln('Hello, world!'); Vpr/
end. p/2jh&
A8q;q 2
H-3Eo#b#
Perl =)E,8L
#!/usr/local/bin/perl N? 5x9duK
print "Hello, world!\n"; v3GwD00
S a4W`
u(OW gbA3
PHP @q"m5
<?php P\]B<
print("Hello, world!"); ?H_LX;r
?> mo1oyQg8
RN)dS>$
?-tVSRKQ
Pike 6Z`R#d #I
#!/usr/local/bin/pike 4J?t_)
int main() K9vIm4::d$
{ dgDy5{_
write("Hello, world!\n"); u7xDau(c
return 0; /'Pd`Nxl.
} i 9g>9
@]qBF]6
.TE?KI
PL/I ;SwMu@tg
Test: procedure options(main); 2 o#,kGd
declare My_String char(20) varying initialize('Hello, world!'); K_
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put skip list(My_String); A<\JQ
end Test; ,+g&o^T
H"Klj_<dH0
bWZbG{Y.
Prolog jqH3J2L
goal 5@hNnh16
write("hello,world!"). y7S4d~&
Z4){
7|~a
8vuCc=
Python a=XW[TY1
#!/usr/local/bin/python N$xtHtz8"
print "Hello, world!" GabYfUkO
`MEYd U1
15$4&=O
REXX w_ {,<[#
say "Hello, world!" 0wFH!s/B
4d_s%n?C
w'X]M#Q><
Ruby V:/7f*n7
#!/usr/bin/ruby Gn)y>
AN
print "Hello, world!\n" $
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YUQtMf9
N~g:Wf!
Scheme O)kgBrB
(display "Hello, world!") XhdSFxW}
(newline) [ BT)l]
y fSM
'cNKjL;
sed (需要至少一行输入) 9_fePS|Z4
sed -ne '1s/.*/Hello, world!/p' $|$e%
FuX 8v
I
_i6-<c.Q
Smalltalk =e><z9hY
Transcript show: 'Hello, world!' iqhOi|!
d bS
+
#Fu>|2F|
SNOBOL Px5t,5xT8
OUTPUT = "Hello, world!" fag^7r z
END h{lDxOH*
~#}Dx
:HH
7GZgu$'
SQL BpO9As 1um
create table MESSAGE (TEXT char(15)); 69kJC/1+l
insert into MESSAGE (TEXT) values ('Hello, world!'); `\<37E\N}
select TEXT from MESSAGE; NHw x:-RH
drop table MESSAGE; Q36)7=at
Sx]
T/xq
-~)OF
Tcl P&*sB%B
#!/usr/local/bin/tcl Bn]K+h\E
puts "Hello, world!" ~un%4]U
OlxX.wP
R*1kR|*_)
TScript 1u]P4Gf=
? "Hello, world!" {+("C]
b
v_PdOp[
k
^_p%Yv
Turing YEYY}/YX
put "Hello, world!" 2
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(#(Or
Bk|K%K
UNIX-style shell Z\>, ),O
程序中的/bin/sh可改为您使用的shell K&A;Z>l,v5
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#!/bin/sh 3Rl,GWK
echo 'Hello, world!' N~=A
K.>wQA&
6R}j-1
<n
GUI OIaYHA
6k])Kl J2;
Delphi H D/5!d
program HelloWorld; 4cCF\&yU
uses J/D|4fC
Dialogs; CfT/R/L
begin `T!#@&+
ShowMessage('Hello, World!'); 8zQfY^/{M
end. {^q)^<#JT
X=p"5hhfn
M<8ML!N0;t
Nuva <"&'>?8j
<. oJ;rc{n-
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) _Sj}~H
.> k1N$+h
;\
b#Kq[}
gp< =Gmd
Visual Basic ?{J!#`tfV
MsgBox "Hello, world!" mv
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'或者 v"1Po_`
Print "Hello, world!" W"(u^}
c{88m/;eP
FRyPeZR
Visual FoxPro -@bp4Z=
? "Hello, world!" Up ?=m^
4~u9B/v
Pern*x9$
X11 y$oW!
用一个程序 Y)p4]>lT+8
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xmessage 'Hello, world!' SPwPCI1?
yFeeG3n3
用C++和gtkmm 2 emWGIo
:1<~}*B@{
#include <iostream> <f%/px%1
#include <gtkmm/main.h> L$JI43HZ
#include <gtkmm/button.h> v}`1)BUeF
#include <gtkmm/window.h> eqFvrESN~=
using namespace std; #8?^C]*{0
@ ^.*$E5
class HelloWorld : public Gtk::Window 5#uO'<2$
{ <aVfJd/fT
public: W^R'@
HelloWorld(); !C`20,U
virtual ~HelloWorld(); ( pD7
protected: 8eX8IR!K9
Gtk::Button m_button; !J#.!}3
virtual void on_button_clicked(); =~,l4g\
};
T&/_e
QMb^&?;s
HelloWorld::HelloWorld() : m_button("Hello, world!") JK^[{1
JI
{ (Jpm
K O
set_border_width(10); 'G
Y/Q5
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); pTET%)3
add(m_button); J#@lV
m_button.show(); 9.-47|-9C
} DB8s
q)oN2-
HelloWorld::~HelloWorld() {} _80ns&q
}xJR.]).KW
void HelloWorld::on_button_clicked() 6+ANAk
{ (6-y+LG
cout << "Hello, world!" << endl; u:5IjOb2^
} Bm<^rhJ9
UT;4U;a,m
int main (int argc, char *argv[]) 85C#ja1&