“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。 !mNst$-H4
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将Hello World程序作为第一个学写的程序,现在已经成为一种传统。该程序最早出现在由Brian Kernighan和Dennis Ritchie写的计算机程序设计教程《C语言程序设计》。 )eyzHB,H
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以下是用不同语言写成的Hello World程序的几个例子: Y
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Ada L`+[mX&2B
with Ada.Text_Io; use Ada.Text_Io; s6 yvq#:
procedure Hello is T2e-RR
begin C%o|}i v"
Put_Line ("Hello, world!"); mU/o%|h
end Hello; *g(d}C!
s@\3|e5g
cbJgeif
汇编语言 `|'w]rj:"+
`nPdZ.
x86 CPU,DOS,TASM C`.YOkpj
MODEL SMALL nrl?<4_
IDEAL ,h*gd^i
STACK 100H uavATnGO{B
AFAg3/
DATASEG |qNe_)
HW DB 'Hello, world!$' fs!dI
l~r;Grd/5
CODESEG FOiwA.:0
MOV AX, @data qOo4T@t3
MOV DS, AX %N8I'*u
MOV DX, OFFSET HW :U?g']`Z##
MOV AH, 09H ReaZg ?:h
INT 21H =g#PP@X]D!
MOV AX, 4C00H hG1$YE
INT 21H bY~K)j
v3&
END ?qjdmB|w
/@9Q:'P
pv]@}+<Dt
x86 CPU,GNU/Linux,NASM g NI1W@)
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax).
t ed:]
;Enter this into "hello.asm" then type: ytcLx77`:
;"nasm -f elf hello.asm" <XeDJ8
'
;"ld hello.o -o hello" N^;lp<{6?
;"./hello" HWjJ.;k}a
iXWHI3
section .data ;data section declaration uKJ:)oyaCP
msg db 'Hello World!',0AH iuV4xyp
len equ $-msg ;string length i 8sv,P
@M'k/jl
section .text ;code section declaration b<a3Ue%
global _start ;entry point (start of execution) mA(kq
_start: mov edx,len ;string length 8SjCU+V
mov ecx,msg ;string start Id=20og
mov ebx,1 ;file handle: stdout iJTG+gx
mov eax,4 ;sys_write /~"-q
int 80h ;kernel system call TK5$-6k
o-<i+ To%
mov ebx,0 ;return value .O-)m'5
mov eax,1 ;sys_exit 5Q10Ohh
int 80h ;kernel system call ZX_QnSNZ?
mIlg=8:
?_]Y8f
x86 CPU,Windows,MASM32 q`e0%^U
.386 0F$|`v"0
.model flat,stdcall | R,dsBd
option casemap:none RZz?_1'
;Include 文件定义 Il=6t
include windows.inc 2"6L\8hd2
include user32.inc oiyvKMHz7
includelib user32.lib QytO0K5
include kernel32.inc ?1\5X<|,
includelib kernel32.lib k5RzW4zq;
;数据段 wX] _Abk
.data *"^X)Y{c+l
szCaption db 'A MessageBox!',0 x.1=QF{!
szText db 'Hello,world!',0 30h[&Oc
;代码段 `q}D#0
.code ]@U?hD
start: S]H[&o1o
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK I"]E}n d)
invoke ExitProcess,NULL G]B0LUT6c
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >\JPX
end start oIrc))j,$
ckX8eg!f
L91(|gQP
AWK HG7Qdw2+O
BEGIN { print "Hello, world!" } +C=vuR
I]ej ]46K
L`t786
(M
BASIC )QAYjW!Z
传统版BASIC(例如GWBASIC): zfU Do`V~
AG >D,6Y
10 PRINT "Hello, world!" tN{0C/B9
20 END l&H-<Z.8m
{A}T^q!m]
或在提示符输入: @;EQ{d
uz8eS'8
?"Hello, world!":END i?_Q@uA~<:
=o@}~G&HA
现代版BASIC(例如Quick BASIC): rbf5~sw&8+
!MSa -
Print "Hello, world!" i%yKyfD
+HE,Q6-A
以下的语句在Quick BASIC中同样有效: Pr>$m{
Z
m#h`iW
? "Hello,world!" $I5|rB/4?
&Hw:65O
^aaj=p:cV
BCPL
4H;g"nWqO
GET "LIBHDR" -t_&H\_T
yc0
1\o
LET START () BE 5]{rim
$( WDNj7
WRITES ("Hello, world!*N") .Z7tE?
$) f?.}S]u5
6~ET@"0uK
,5 ,r.
Befunge 2-S}#S}2C
"!dlrow olleH">v #8d#Jw
, S> Fb'rJ3
^_@ IlEU6Rs
[<+T@"y
YWPkVvI
Brainfuck KMT$/I{p,
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< uJ"#j
X
+++++++++++++++.>.+++.------.--------.>+.>. X>dQK4!R
2Jo|P A`9
(ht"wY#T<(
C hQ3@Cf W
#include <stdio.h> $jk4H+H-
P'$2%P$8:~
int main(void) %4VM"C4[
{ tli*3YIw
printf("Hello, world!\n"); |QrVGm@2
return 0; !le#7Kii
} Lh+7z>1
)~)T[S
kb-XEJ}L
C++ :|l0x a
#include <iostream> yJx,4be
p7},ymQ|YQ
int main() iLdUus!
{ ddYb=L+_b
std::cout << "Hello, world!" << std::endl; *"|f!t
return 0; Z'AjeZyyE
} "<oR.f=0
wKW.sZ!S1
P EzT|uY
C++/CLI UeUOGf ,
int main() Na\&}GSf^
{ jcePSps]
System::Console::WriteLine("Hello, world!"); Jcvp<
} R]Fa?uQW
QIwO _[Q
s$^ 2Cuhv
C# (C Sharp) rl"yE=
class HelloWorldApp x!4<ff.
{ 2Z(?pJyDM
public static void Main() $SLyI$<gP
{ E]Cm#B
System.Console.WriteLine("Hello, world!"); m=`V
} PtjAu
} ubl
Y%{"
2%l(qfN9
p,4S?cr>a
COBOL CyS.GdyP
IDENTIFICATION DIVISION. j"0TAYmXwu
PROGRAM-ID. HELLO-WORLD. TIV|7nKL
N,)rrBD
ENVIRONMENT DIVISION. +C$wkx]
ZU:c[`
DATA DIVISION. V" 5rIk
2 $Z4 >!
PROCEDURE DIVISION. R<T5lkJ\/
DISPLAY "Hello, world!". rp-.\Hl/a
STOP RUN. 3qfQlqJ&3
7n#Mh-vq
kDKfJp&a
Common Lisp ]{-ib:f~
(format t "Hello world!~%") J<L"D/
uN&49o
%e:
hVU
DOS批处理 l)Cg?9
@echo off f+Bv8 g
echo "Hello, world!" N[=R$1\Z
o`jV d,aj
'kCr1t
Eiffel *xKY>E+
class HELLO_WORLD R*"zLJP
&'5j!
creation }e1]Ib!
make e58tf3
feature GQkI7C
make is ;;17 #T2
local %Y].i/".;P
io:BASIC_IO h*NBSvn
do e=6C0fr
!!io #w[Ie+
io.put_string("%N Hello, world!") \T!tUd
end -- make S#D6mg$Z,
end -- class HELLO_WORLD g<4@5OQKu
dqL)q 3
i;<H^\%
Erlang Ut"F b
-module(hello). o
3 G*
-export([hello_world/0]). :2&W9v
4H%Ai(F}_
hello_world() -> io:fwrite("Hello, World!\n"). /;1h-Rc>
k5Df97\s
{Pi]i?
Forth alQ:'K
." Hello, world!" CR (d5kD#.N
SR'u*u!
Y&b JKX
Fortran >x1?t
WRITE(*,10) i\P)P!
10 FORMAT('Hello, World!') rcMSso2
STOP SnW>`
END _$qH\>se
LT '2446
&FzZpH
HTML #.W<[KZf
<HTML> 8<g9 ~L
<HEAD> ,dk!hm u
<TITLE> Hello World! </TITLE> tsTCZ);(
</HEAD> =qTmFszT
<BODY> 4}HY= 0Um
<p>Hello World!</p> >uDE<MUC
</BODY> Bt-2S,c,o
</HTML> zC\L-i>G
!.5,RIf
}7|UA%xz
HQ9+
lxD~[e
H f>_' ]eM%
Y]{~ogsn$:
\ssqIRk
INTERCAL w97%5[-T
PLEASE DO ,1 <- #13 2~*.X^dR
DO ,1 SUB #1 <- #238 eB*0})
DO ,1 SUB #2 <- #112 B=+Py%
DO ,1 SUB #3 <- #112 _ye74$#
DO ,1 SUB #4 <- #0 >a2i%j/T
DO ,1 SUB #5 <- #64 Sy`7 })[
DO ,1 SUB #6 <- #238 CrI:TB>/"
DO ,1 SUB #7 <- #26 [E|%
DO ,1 SUB #8 <- #248 iwnFCZVS
DO ,1 SUB #9 <- #168 /jv4#9
DO ,1 SUB #10 <- #24 t5WW3$Nf
DO ,1 SUB #11 <- #16 6{PlclI !
DO ,1 SUB #12 <- #158 -|A`+1-R+
DO ,1 SUB #13 <- #52 R<x~KJ11c
PLEASE READ OUT ,1 pbePxOG
PLEASE GIVE UP =?gB@vS
OB5`a,5dI
>hmBV7nR
Java %oE3q>S$en
public class Hello S+&Bf ~~D
{ "_T8Km008
public static void main(String[] args) Ves
x$!F#
{ jpek=4E
System.out.println("Hello, world!"); KI{B<S3*Z
} h#rziZ(
} +&h<:/ V
u3ns-e
o79EDPX
JSP hV]]%zwR+
<% Gg=Y}S7:
out.print("Hello, world!"); yJAz#~PO/
%> ?B~S4:9
gG6j>%y
bs=x>F
MIXAL v46 5Z
TERM EQU 19 the MIX console device number %ryYa
ORIG 1000 start address YRm6~c
START OUT MSG(TERM) output data at address MSG y)e8pPDG
HLT halt execution VwrHD$
MSG ALF "MIXAL" V*w~Sr%
ALF " HELL" G :JQ_w
ALF "O WOR" of k@.TmO
ALF "LD " R9`37(c9+
END START end of the program ' (1`iQ;
%qqX-SF0C
.~t.B!rVSB
Nuva {gwJ>]z"e
<..直接输出..> ,4tuWO)"
Hello, world! (Ld,<!eN0
0<C]9[l
<..或者..> V 0M&D,
V*1hoC#
<. Z0I>PBL@l
// 不带换行 ;Wu6f"+Y#
? "Hello, world!" )UgLs|G~
_gl7Ma
// 或者 ^\ocH|D
JcDcYB
// 带换行 1Vy8TV3D
?? 'Hello, world!' Yy3g7!K5E
.> osdl dS
tlJ@@v&=
\&Zp/;n
OCaml T@)|0M
let main () = +1o4l i
print_endline "Hello world!";; T>2_ r6;
#%$U-ti
kI|7o>}<
Pascal /pS Y ~*
program Hello; +#V.6i
begin r?j2%M\
writeln('Hello, world!'); &<RK=e'*x
end. r(VznKSx
>j$y@"+
"|KhqV=?v
Perl m#.N
#!/usr/local/bin/perl iu+r=sp
print "Hello, world!\n"; r#X6jU
MGU%"7i'}
.L#U^H|
PHP bs9X4n5
<?php +9!=pRq
print("Hello, world!"); Cl>{vSN
?> j}fu|-
{\62c;.
p]E \!/
Pike l1I\khS
#!/usr/local/bin/pike aoP=7d|K/
int main() QxI^Bx
{ <tx`#,
write("Hello, world!\n"); *'ffMnSZ
return 0; QRKr2:o{
} 64R~ $km
?hh#@61
1@S(v L3a
PL/I NwbX]pDT
Test: procedure options(main); EwX:^1f
declare My_String char(20) varying initialize('Hello, world!'); bD ADFitSo
put skip list(My_String); JKy06I
end Test; f5o##ia7:
F9PXQD(
.:/[%q{k
Prolog dlJc~|
goal FX,kmre3
write("hello,world!"). KqhE=2,
O@-|_N*;K
Sxzt|{
Python '74*-yd
#!/usr/local/bin/python W|-<ekH_u
print "Hello, world!" p%ZOLoc)Y
RHv|ijYy
' |Ia-RbX
REXX e` {F7rd:
say "Hello, world!" }2+*E}g
T7qE
2
O'[r,|Q{
Ruby ;*[oi
#!/usr/bin/ruby 8RaRXnJ
print "Hello, world!\n" LzGSN
s9F{UN3
9L7jYy=A#
Scheme l:- <CbG
(display "Hello, world!") |B~^7RHXo
(newline) .hVB)@/
"l[ c/q[
PDNbhUAV
sed (需要至少一行输入) 4RyQ^vL
sed -ne '1s/.*/Hello, world!/p' ,LftQ1*;
U]}f]GK
>#[,OU} N
Smalltalk N SkIzaNY
Transcript show: 'Hello, world!' uG,*m'x']
|kK_B
:K
_?rL7oTv
SNOBOL nv'YtmR
OUTPUT = "Hello, world!" ![Ll$Lr
END 'Hv=\p4$1
teX)!N [
'9XSz?
SQL :[d*
create table MESSAGE (TEXT char(15)); GMOnp$@H^s
insert into MESSAGE (TEXT) values ('Hello, world!'); /5N`Euw
select TEXT from MESSAGE; _>RTefL5
drop table MESSAGE; f=paa/k0
D*}_L
k@}g?X`8
Tcl OKV/=]GS
#!/usr/local/bin/tcl ~ya@ YP]';
puts "Hello, world!" fVo7wp
jeWI<ms
,-`A6ehg
TScript 12LGWhDp
? "Hello, world!" cH6<'W{*
V(wANvH
m<I>NYfE
Turing Ye]-RN/W
put "Hello, world!" pE381Cw
k7)<3f3&S.
[m0G;%KR/
UNIX-style shell s`I]>e
程序中的/bin/sh可改为您使用的shell g]Z@_
d^qTY?k.
#!/bin/sh }e]tn)
echo 'Hello, world!' Z3 O_K
>SW c
RYZM_@5$t
GUI Nq"J[l*+g
^*'fDP*
Delphi t~M0_TnXlP
program HelloWorld; qQp;i{X
uses }9~U5UXWU
Dialogs; f,'^"Me$c
begin ub9,Wd"^
ShowMessage('Hello, World!'); L XHDX
end. o}e]W,
g_;4@jwTP"
q);@iiJ-
Nuva B3Da w/G
<. >~*}9y0$
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) ]N{jF$
.> z<OfSS_]R
GQ6~Si2
#'8'5b
Visual Basic ,m[#<}xXA
MsgBox "Hello, world!" j7yUya&
'或者 KJi8LM
Print "Hello, world!" \[L|
"L+NN|
J[al4e^
Visual FoxPro #L+ZHs~
? "Hello, world!" _rz7)%Y'#$
Odr<fvV,>
8+Abw)]s
X11 46D_K
用一个程序 nG~^-c+
e4<St`K
xmessage 'Hello, world!' +2,EK
t#2szr+
用C++和gtkmm 2 51 "v`O+
o[aIQ|G
#include <iostream> ?0?+~0sI
#include <gtkmm/main.h> ^?S lM
#include <gtkmm/button.h> thSXri?kl
#include <gtkmm/window.h> 8iC9xSH[%
using namespace std; FW:V<{f
."j=s#OC(
class HelloWorld : public Gtk::Window ]SUW"5L-
{ DHVfb(H5e
public: #:8V<rc^
HelloWorld(); o3Z<tI8-V
virtual ~HelloWorld(); M3s:B& /
protected: ,U.|+i{
Gtk::Button m_button; <~
?LU^
virtual void on_button_clicked(); 4F,RlKHBl
}; ^%NjdZu DO
HXgf=R/$
HelloWorld::HelloWorld() : m_button("Hello, world!") z6Zd/mt~x
{ P\&n0C~
set_border_width(10); >:|jds#
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); 7~H"m/;U&
add(m_button); mw*KLMo42
m_button.show(); ?i$MinK
} @=qWwt4~
K~A@>~vFb
HelloWorld::~HelloWorld() {} %<\tN^rP
[Q[ac 6f
void HelloWorld::on_button_clicked() yAQ)/u[|
{ T1c&3
cout << "Hello, world!" << endl; B~`:?f9ny5
} ]u47]L#
&/$3>MD2`
int main (int argc, char *argv[]) .NMZHK?%
{ TRFza}4:i
Gtk::Main kit(argc, argv); KSO%89R'
HelloWorld helloworld; u_.Ig|Va
Gtk::Main::run(helloworld); VKu|=m2vB
} USV;j%U4*
a 1~@m[
b$Q#Fv&P
Java * & : J
import java.awt.*; W.>}5uVl6
import java.awt.event.*; Vo9FlYj
8*EqG5OP
public class HelloFrame extends Frame K<p)-q
{ 9^@#Ua
HelloFrame(String title) u(~( +1W
{ ; g\rY
super(title); 9j<