“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。 lr>NG,N
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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》。 44ty,M3
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以下是用不同语言写成的Hello World程序的几个例子: oPmz$]_Z
Ada j9h/`Bn
with Ada.Text_Io; use Ada.Text_Io; /q IQE&V-
procedure Hello is E#KZZ lbx
begin 0V~zZ/e
Put_Line ("Hello, world!"); xfb .Z(
end Hello; |0i{z(B
4^W!,@W
0/)2RmF
汇编语言 C .S BJ
:|W=2(>
x86 CPU,DOS,TASM A'jvm@DvQI
MODEL SMALL y47N(;vy
IDEAL .}\8Y=
STACK 100H 01?+j%k=m/
ircF3P>a?
DATASEG ,&UKsrs_
HW DB 'Hello, world!$' /2Wg=&H
?9\D(V
CODESEG %'iJVFF
MOV AX, @data \|0z:R;X
MOV DS, AX qYA~Os1e
MOV DX, OFFSET HW "QnYT3[l"
MOV AH, 09H E]mm^i`|
INT 21H 4QA~@pBX^{
MOV AX, 4C00H eNd&47lJ
INT 21H [Qnf]n\FJ
END 'f<N7%eZ
lI?P_2AaS
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x86 CPU,GNU/Linux,NASM 2Xe1qzvo
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). fbh,V%t7
;Enter this into "hello.asm" then type: OIPY,cj~
;"nasm -f elf hello.asm" 1Vu#:6%
;"ld hello.o -o hello" X)KCk2Ax
;"./hello" ]CzK{-W
~q3O,bb{
section .data ;data section declaration Xfk
DMh
msg db 'Hello World!',0AH JdS,s5Z>
len equ $-msg ;string length vaB ql(?'2
!5 }}mf
section .text ;code section declaration Or? )Nlg6x
global _start ;entry point (start of execution) S"&Gutu3o
_start: mov edx,len ;string length (\F9_y,6*\
mov ecx,msg ;string start -$:;en?
mov ebx,1 ;file handle: stdout )95k3xo
mov eax,4 ;sys_write /wLBmh1"
int 80h ;kernel system call 5mZ2CDV
&G"s!:
mov ebx,0 ;return value i%FC
lMF
mov eax,1 ;sys_exit 1D'r;`z
int 80h ;kernel system call b&P)J|Fe
"K(cDV Q
^4fvV\ne_~
x86 CPU,Windows,MASM32 'W(u.
.386 y^C5_w(^jZ
.model flat,stdcall xqX3uq
option casemap:none )h,yQ`.
;Include 文件定义 fB+h( 2N~
include windows.inc K) }1;
include user32.inc 1b3 a(^^E
includelib user32.lib S($/Ov
include kernel32.inc \8xSfe
includelib kernel32.lib 7su2A>Ix
;数据段 K%dQ;C*?
.data DO(};R%=
szCaption db 'A MessageBox!',0 %'1iT!g8
szText db 'Hello,world!',0 A&M_ J
;代码段 %j\&}>P4$
.code MSmr7%g3D
start: 4v`/~a
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK !MKecRG_
invoke ExitProcess,NULL 7Vy_Cec1
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> qHub+"2
end start Ye3o}G9z
)7 & -DI1
Yk|6?e{+)
AWK (?Mn_FNE|
BEGIN { print "Hello, world!" } R$awo/'^
p9)YRLOh.
lMFo)4&P
BASIC Q2 !GWz$
传统版BASIC(例如GWBASIC): >8"(go+02
EsKgS\`RZ
10 PRINT "Hello, world!"
sm`c9[E
20 END i6WPf:#wr
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或在提示符输入: g8.z?Ia#5Z
W^8
?"Hello, world!":END >UCg3uFj
:%h1Q>F
现代版BASIC(例如Quick BASIC): U3N
d\b'0
4*}&nmW
Print "Hello, world!" rci,&>L"
>
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以下的语句在Quick BASIC中同样有效: -rU_bnm
c[ZrQJ
? "Hello,world!" fx|d"VF[
"|X'qKS(H{
`/[5/%
BCPL RyK~"CWT
GET "LIBHDR" Zp/+F(
4m<]qw
LET START () BE Z|C,HF+m.
$( _G'ki.[S7
WRITES ("Hello, world!*N") 5! );4+
$) D`@a*YIq
5@5*}[M
7nT|yL?
Befunge H/{@eaV
"!dlrow olleH">v ?L0;,
\-t
, iQ" LIeD
^_@ -7&ywgxl
B/l^=u+-
oZ*?Uh *
Brainfuck XnP?hw%
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< >s5}pkAv|e
+++++++++++++++.>.+++.------.--------.>+.>. xF{%@t
F%
n}vA`
T^;b98*
C ~u$cX1M
#include <stdio.h> 8?82 p
L6CI9C;-b
int main(void) `T*Y1@FV
{ @K!JE w\
printf("Hello, world!\n"); :lXY% [!6P
return 0; nnn\
} P-B5-Nz
FQ0&{ulb
aUNA`
L
C++ r5xm7- `c
#include <iostream> I8!>7`L
bK6^<,~
int main() ^S`hKv&87
{ *jhgCm
std::cout << "Hello, world!" << std::endl; JL
G!;sov
return 0; C5^WJx[
} xY]q[a?cy
FDgo6x
O>~@>/#
C++/CLI }*bp4<|
int main() -6J <{1V
{ 9]+zZP_#
System::Console::WriteLine("Hello, world!"); G~y:ZEnN[
} Rw
`ezC#
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,ASNa^7/>
C# (C Sharp) F_0D)H)N@
class HelloWorldApp .'o=J`|
{ Ba?1q%eG
public static void Main() Psf'^42(v
{ h._eP.W `
System.Console.WriteLine("Hello, world!"); "0%K3d+
} tXA?[ S
} g"" 1\rc=
~ zfF*A
ASov/<D_q
COBOL 9b >+ehj B
IDENTIFICATION DIVISION. R"XycXn_$
PROGRAM-ID. HELLO-WORLD. !i8)si_
\mLEwNhRY
ENVIRONMENT DIVISION. S -mpob)
Vaf,
DATA DIVISION. 5uG^`H@X
ZRYlm$C
PROCEDURE DIVISION. D(Rr<-(
DISPLAY "Hello, world!". ma-GvWD2
STOP RUN. p4IyKry,
?J+jv
p>pN?53S
Common Lisp !G vT{
(format t "Hello world!~%") 5\zR>Tg".
i 1w]j
[Y!HQ9^LEp
DOS批处理 c;/vzIJj
@echo off h-Y>>l>PW0
echo "Hello, world!" C3^3<
HaL'/V~
Y?1T
XsvF
Eiffel bBML +0a
class HELLO_WORLD lIEZ=CEmY
$X;OK
creation 5"40{3
make [mwqCW&
feature Has}oe[
make is 6d8)]
local /L2ZI1v
io:BASIC_IO sF)$<[w
do !nL94:8U
!!io 8IL5:7H8
io.put_string("%N Hello, world!") m Qx1co
end -- make yj'lHC
end -- class HELLO_WORLD EP;ts
]U~{?K'g@j
k>MXOUaW.
Erlang X ]&`"Z]
-module(hello). q("l?'
-export([hello_world/0]). `Ivt)T+n;
8zRw\]?
hello_world() -> io:fwrite("Hello, World!\n"). Na]Z%#~
"i&n;8?Y
/ QL<>g
Forth 3ONW u
." Hello, world!" CR LjGLi>kI~
fh_:ung
M@q)\UQ'
Fortran `ba<eT':
WRITE(*,10) wp8-(E^
10 FORMAT('Hello, World!') Z>w@3$\z
STOP S9[Up}`
END Dz.kJ_"Ro
-$%~EY}
dUn]aS
HTML ?vD<_5K;I
<HTML> J+0
?e9
<HEAD> >d
.|I&
<TITLE> Hello World! </TITLE> N{RHbSa(
</HEAD> ;CL^2{
<BODY> @DM NLsQ
<p>Hello World!</p> s#0m
</BODY> 26_PFHQu4
</HTML> [KO\!u|?YS
+&X>ul
NJ}xqg
HQ9+ Tnf&32IA
H \sVzBHy d
ou|3%&*"
R 'mlKe x
INTERCAL o'P[uB/
PLEASE DO ,1 <- #13 [daR)C
DO ,1 SUB #1 <- #238 *0a7H$iQ(]
DO ,1 SUB #2 <- #112 Oh`Pf;.z%
DO ,1 SUB #3 <- #112 { iLr$89
DO ,1 SUB #4 <- #0 ONcS,oHW
DO ,1 SUB #5 <- #64 $:DL+E-}
DO ,1 SUB #6 <- #238 L<<v
DO ,1 SUB #7 <- #26 C}XB%:5H5
DO ,1 SUB #8 <- #248 1*@Q~f:Uk
DO ,1 SUB #9 <- #168 mp]UUpt
DO ,1 SUB #10 <- #24 gd31d s!G
DO ,1 SUB #11 <- #16 |>I4(''}
DO ,1 SUB #12 <- #158 [z}$G:s
DO ,1 SUB #13 <- #52 @yPI$"Ma
PLEASE READ OUT ,1 mxvV~X%
PLEASE GIVE UP kA 4kQ}q
t&bE/i_T
7 Uu
Java \HJ t }
public class Hello qp1rP#
{ uUpOa+t
public static void main(String[] args) }W]k1Bsx
{ O
>&,h^
System.out.println("Hello, world!"); 1\,wV,
} <_Po/a!c3
} '-X913eG!
vi.q]$ohbV
BA0.B0+"
JSP Zf`ddT
<% Vuo 8[h>
out.print("Hello, world!"); 1Yv#4t
%> 7\;gd4Ua1
nr9cG/"
pe@/tO&I
MIXAL POUD*(DqNK
TERM EQU 19 the MIX console device number 9_S>G$9D
ORIG 1000 start address ~{O@tt)F
START OUT MSG(TERM) output data at address MSG <wt9K2,
HLT halt execution o[eIwGxZ
MSG ALF "MIXAL" I:#Es.
ALF " HELL" u%Yr&u
ALF "O WOR" 3UX} )mW
ALF "LD " '||),>~
END START end of the program IC7S
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vo DTU]pf
q^w3n2
Nuva [I` 6F6
<..直接输出..> ((%g\&D
Hello, world! U~8 oE_+
_-I 0f##.
<..或者..> #G ZGk?
~\m|pxcj
<. a<X<hxW:
// 不带换行 M e
? "Hello, world!" M 9b_Q
ojitBo~
// 或者 VXAgp6
f&ym'S
// 带换行 9f4#b8
?? 'Hello, world!' e$^ O_e
.> x~tG[Y2F?
|f0KIb}d
b1;80P/:D
OCaml "syf@[tz7
let main () = `QlChxd
print_endline "Hello world!";; 7Jm9,4]
lLT;V2=osX
AjZ@hid
Pascal 3RP}lb
program Hello; B/Lx,
begin %!HmtpS
writeln('Hello, world!'); Z\y@rp\l
end. xla9:*pPn
;
. c]0
PU^Z7T);
Perl ,g$N
#!/usr/local/bin/perl zRJopcE<
print "Hello, world!\n"; '@iS5Fni
a-,BBM 8|
wYS,|=y
PHP :r[`bqC;\*
<?php s]r"-^eS3
print("Hello, world!"); 6;GL>))'
?> \+g95|[/
9 frS!AQ
t HPC
Pike xS,#TU;)Ol
#!/usr/local/bin/pike ]v 6u
int main() 928szUo:
{ Au"[2cG
write("Hello, world!\n"); 81/Bn!
return 0; 0QDm3V0n
} !+T+BFw.
5_nkN`x
fdCsn:
PL/I 5sx-u!7
Test: procedure options(main); Fp06a!7<
declare My_String char(20) varying initialize('Hello, world!'); ab'
f:
put skip list(My_String); ~/hP6*
end Test; h8O[xca/~
jpaY:fcF
Vl?R?K=`~J
Prolog d;(L@9HHD
goal VD.p"F(]
write("hello,world!"). ,l`q
EZc!QrY
r%$-F2.p
Python zie])_8|h
#!/usr/local/bin/python %n9}P ,
?
print "Hello, world!" L$@^EENS
2[Q*?N
6,0pkx&Nv
REXX 7##nY3",^
say "Hello, world!" *n2Q_o
>3X!c"#l
|z|5j!Nfh
Ruby rFn;z}J2
#!/usr/bin/ruby @=b0>^\m
print "Hello, world!\n" Uz\B^"i|
M{:gc7%
qw0tw2|
Scheme -(qoz8H5
(display "Hello, world!") D_9&=aa'
(newline) }vxb, [#
J~DP*}~XK
I1&Z@[
sed (需要至少一行输入) }!& w<wR
sed -ne '1s/.*/Hello, world!/p' )~O{jd
\%EZg
r NqJL_!
Smalltalk 2sy{
Transcript show: 'Hello, world!' zY\v|l<T
LlRvm/
H[<"DP
SNOBOL g;\zD_":l
OUTPUT = "Hello, world!" .
%tc7`k8
END \Q*3/_}G
Zx55mSfx:
:{LVS
nG
SQL Otn,(j;u
create table MESSAGE (TEXT char(15)); H4KwbTT"+
insert into MESSAGE (TEXT) values ('Hello, world!'); ;#3!ZB:}
select TEXT from MESSAGE; aAu
upPu
drop table MESSAGE; |vTirZP
f>waFu-
0FjSa\ZH
Tcl (~}yt .7K
#!/usr/local/bin/tcl t{!}^{
"5
puts "Hello, world!" P)^K&7X
05DK-Wh?
0$}+tq+
TScript #g{ZfO[#
? "Hello, world!" # u^F B
#rzxFMA"
x
nWapG
Turing %=S^{A
put "Hello, world!" rNfua
HHWB_QaL
h k(2,z
UNIX-style shell 4eBM/i
程序中的/bin/sh可改为您使用的shell "]*0)h_
A37Z;/H~k
#!/bin/sh eO(VSjo'`
echo 'Hello, world!' UG&/0{j5XV
1reJ7b0
jf*M}Q1jHE
GUI K$#(\-M
h+,zfVJu
Delphi 22}J.'Zb
program HelloWorld; 9i yNR!
uses Rw^4S@~T
Dialogs; 2P!Pbl<
begin Xy_+L_h^
ShowMessage('Hello, World!'); !wJ~p:vRdY
end. ="d}:Jl
3)atqM)i
=MB[v/M59w
Nuva 35B0L.R
<. BNQ~O^R0
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) Wl;F]_|*(
.> eMPi ho
<[ 8at6;
`L]cJ0tAs
Visual Basic 3"6lPUS
MsgBox "Hello, world!" *]W{83rXQ
'或者 #If}P$!
Print "Hello, world!" \a<qI
la</IpC
%%G2w63M
Visual FoxPro zy
? "Hello, world!" +]Po!bN@@
3-lJ] 7OT
",w@_}z:
X11 FU;Tv).
用一个程序 pzg|?U
:JV=Kt
xmessage 'Hello, world!' QPg
QM6
w;&J._J
用C++和gtkmm 2 Ra%RcUf~sh
A'c0zWV2
#include <iostream> Ha[Bf*
#include <gtkmm/main.h> O B_g:T
#include <gtkmm/button.h> +Hc[5WL
#include <gtkmm/window.h> {SY@7G]
using namespace std; )U`6` &F
b" 1a7
class HelloWorld : public Gtk::Window }cn46L%/
{ Ckj2$c~
public: kl?U2A.=
HelloWorld(); %nSm 32/t3
virtual ~HelloWorld(); s+#gH@c
protected: :rk=(=@8`
Gtk::Button m_button; 5k)QjZo
virtual void on_button_clicked(); F@1~aeX-
}; ZgP=maQk
Ur6UE2
HelloWorld::HelloWorld() : m_button("Hello, world!") e=<knKc
Q
{ <4ccT l
set_border_width(10); q6bi{L@/R
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); b|^g51v
add(m_button); )e d5~ok
m_button.show();
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