“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。 M^q< qS>d
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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》。 l@;UwnI
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以下是用不同语言写成的Hello World程序的几个例子: 4@2<dw|*h
Ada j7(sYo@x7
with Ada.Text_Io; use Ada.Text_Io; {{hp;&x
procedure Hello is B,Pbm|U1
begin U
GA_^?4
Put_Line ("Hello, world!"); `pMI@"m
end Hello; 4?+K:e #F
a`c#-
je
4LG[i}u.N
汇编语言 z\S#P|;
8Zj=:;
x86 CPU,DOS,TASM N>R\,n|I
MODEL SMALL 5yOIwzr&Uu
IDEAL A
-C.Bi;/
STACK 100H F$L2bgQR?'
1NHiW
v
DATASEG I5nxY)v
HW DB 'Hello, world!$' OyI?P_0u
l dd8'2
CODESEG -cgLEl1 J
MOV AX, @data JD`IPQb~E
MOV DS, AX Q6Ay$*y=D
MOV DX, OFFSET HW / //
MOV AH, 09H C bWz;$r
INT 21H UB5CvM28
MOV AX, 4C00H g mdJ8$
INT 21H pUcN-WA
END BiFU3FlTf
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p
?*oBevUnCY
x86 CPU,GNU/Linux,NASM
6tx5{Xl-o
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 4*AkUkP:T
;Enter this into "hello.asm" then type: NO)Hi)$X6Y
;"nasm -f elf hello.asm" 6o5NeKZ
;"ld hello.o -o hello" +9^V9]{Vo
;"./hello" fwF&V^Dy
Mh=yIx</
section .data ;data section declaration /M,C%.-
msg db 'Hello World!',0AH yL2sce[
len equ $-msg ;string length {GH0>
1&
1K*`i(
section .text ;code section declaration Zz,j,w0 Z
global _start ;entry point (start of execution) d}RU-uiW
_start: mov edx,len ;string length O]-)?y/
mov ecx,msg ;string start M]Kxg;
mov ebx,1 ;file handle: stdout tPp9=e2[s
mov eax,4 ;sys_write I cJy$+
int 80h ;kernel system call f|v5itO2
COc,
mov ebx,0 ;return value $_cO7d
mov eax,1 ;sys_exit *VUD!`F
int 80h ;kernel system call RJ\'"XQ
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)r0XQa]@$
x86 CPU,Windows,MASM32 VQ R
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.386 YW14X
.model flat,stdcall x?"+Or.h
option casemap:none dguN<yS-E
;Include 文件定义 ut*sx9l
include windows.inc g=gM}`X%
include user32.inc /"J3hSR
includelib user32.lib ]$7yB3S,B
include kernel32.inc +6~y1s/B[
includelib kernel32.lib >P9|?:c
;数据段 s![Di
.data (DIMt-wz
szCaption db 'A MessageBox!',0 whW%c8
szText db 'Hello,world!',0 HZawB25{
;代码段 Y5ZBP?P
.code 3wYhDxY1
start: g[c_rty
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK !g.?+~@
invoke ExitProcess,NULL
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;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> yI{4h $c
end start .),Fdrg
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.A Dik}o
AWK *^3&Y@
BEGIN { print "Hello, world!" } JBI> D1`"
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,I2x&Ys&.
BASIC "d; T1
传统版BASIC(例如GWBASIC): 9Ai3p
@e#{Sm
10 PRINT "Hello, world!" I&J>
20 END #?h-<KQQ
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或在提示符输入: 4=nh'
U38
>ufL RGL>
?"Hello, world!":END V[;^{,;
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现代版BASIC(例如Quick BASIC): (|2:^T+
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Print "Hello, world!" jmBsPSGIC
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以下的语句在Quick BASIC中同样有效: uj~(r=%
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? "Hello,world!" ["H2H rI2
I_s* pT
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BCPL v.6K;TY.
GET "LIBHDR" 3Viz0I<%
rqWD#FB=z
LET START () BE e9;5.m
$( j,79G^/YG
WRITES ("Hello, world!*N") NX&Z=ObHu}
$) mhgvN-? "h
WB.w3w[f
ce<88dL
Befunge s$Vz1B
"!dlrow olleH">v ZA7b;{o [
, >sGiDK @
^_@ "rnVPHnQR
W|L#Q/
RX
!!<H*9]+W;
Brainfuck 3kavzB[
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< zi_0*znw
+++++++++++++++.>.+++.------.--------.>+.>. P
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V`4/oM`
C Gm[XnUR7V
#include <stdio.h> C/!7E:
'j\~> a3\
int main(void) bo-lT-I
{ ]64pb;w"$D
printf("Hello, world!\n"); =eQ'^3a
return 0; HE:]zH
} (&1565
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K*P:FCz
C++ )@],0yL
#include <iostream> &S=xSs:q.
>{{0odBF
int main() !8I80:e_~
{ !>?*gc.<
std::cout << "Hello, world!" << std::endl; ";Q}Gs}
return 0; 4vi[hiV
} !}hG|Y6s
' 7H"ezt
/pWKV>tjj
C++/CLI h,ipQ>
int main() 8'Iei78Ov
{ &&7&/
System::Console::WriteLine("Hello, world!"); 07G'"=
} r<[G~n
hf:\^w
T*%O\&'r
C# (C Sharp) v+~O\v5Q
class HelloWorldApp "I
QM4:
{ x~E\zw
public static void Main() E/2_@&U:}
{ `Krk<G
System.Console.WriteLine("Hello, world!"); [JEf P/n|.
} AEd9H
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} 9z+ZFIf7d
:pLaxWus!
EGzlRSgO
COBOL A3.*d:A
IDENTIFICATION DIVISION. n^Q-K}!T/
PROGRAM-ID. HELLO-WORLD. >J_(~{-sNG
1cS*T>`
ENVIRONMENT DIVISION. S])*LUi
t{e}3}LEd
DATA DIVISION. ujr"_ofI
$lg{J$
h8
PROCEDURE DIVISION. ))6YOc
DISPLAY "Hello, world!". ?>NX}~2cf
STOP RUN. s)#TT9BbV
U
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L0qL\>#ejr
Common Lisp JvF0s}#4
(format t "Hello world!~%") 24k;.o
Bo;{ QoB
E-deXY
DOS批处理 ,+v>(h>q
@echo off ^;[^L=}8$
echo "Hello, world!"
825 QS`
gkDXt^Ob
rQ(u@u;
Eiffel C[CNJ66
class HELLO_WORLD $ve*j=p
63VgQ
creation ,4r 4 <
make $XcuU
sG
feature }"STc&1
make is a&Me#H{
local }[y_Fr0
io:BASIC_IO l)f 2T@bHl
do bZ}T;!U?I
!!io w3M F62:
io.put_string("%N Hello, world!") ~&D5RfK5f
end -- make P:UR:y([
end -- class HELLO_WORLD 4MoxP
mOJ-M@ME
bUe6f,8,
Erlang 19i=kdH
-module(hello). 4$+/7I \
-export([hello_world/0]). R]l2,0:
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!v
hello_world() -> io:fwrite("Hello, World!\n"). aZmac'cz{
QzY5S0
@%8$k[
Forth QC(ce)Y
." Hello, world!" CR eC_i]q&o|
oGL2uQXX
l - ~PX
Fortran MAD t$_
WRITE(*,10) \*Z:w3;r
10 FORMAT('Hello, World!') SqVh\Nn
STOP :ay`Id_tm
END =00sB
_Nf%x1m5s
=(Y+u
HTML [f?x,W~
<HTML> cXNR<`
<HEAD> mcWN.
<TITLE> Hello World! </TITLE> b@B\2BT
</HEAD> |AS9^w
<BODY> t,qz%J&a
<p>Hello World!</p> `YK#m4gc
</BODY> Oy yE0
</HTML> Xl/2-'4
tZA%^Y
[?F]S:/i
HQ9+ z5t"o !
H :JzJ(q/
''B}^yKEW
kDWvjT
INTERCAL n<MreKixE
PLEASE DO ,1 <- #13 :SVWi}:Co1
DO ,1 SUB #1 <- #238 8z*/J=n
DO ,1 SUB #2 <- #112 g y1i%
DO ,1 SUB #3 <- #112 \_|r>vQ
DO ,1 SUB #4 <- #0 &(A'uX.>pr
DO ,1 SUB #5 <- #64 EV N:3
DO ,1 SUB #6 <- #238 5}`e"X
DO ,1 SUB #7 <- #26 B k~%
DO ,1 SUB #8 <- #248 jNP%BNd1f
DO ,1 SUB #9 <- #168 tnC,1HV0[
DO ,1 SUB #10 <- #24 {_X&{dZLX
DO ,1 SUB #11 <- #16 D<xDj#Z~1
DO ,1 SUB #12 <- #158 G":u::hR
DO ,1 SUB #13 <- #52 d7v_>
PLEASE READ OUT ,1 \Gy+y`
PLEASE GIVE UP 8#15*'Y
_E
xd:
CI@qT}Y_
Java ?.,2EC=+
public class Hello W.
p'T}2
{ L_}F.nbS5
public static void main(String[] args) 7)y
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{ .0]Odf:@
System.out.println("Hello, world!"); Eo_;Nc
} )[5 .*g@
} f=nVK4DuZ
~9dAoILrl
a9TKp$LP`
JSP sQ%gf
<% K?acRi
out.print("Hello, world!"); n;*W#c
%> Z;J{&OJ3qM
S$i3/t
,98`tB0
MIXAL vaj-|&
TERM EQU 19 the MIX console device number W>rx:O+
ORIG 1000 start address 6#1:2ZHKG
START OUT MSG(TERM) output data at address MSG `r.
HLT halt execution Mt+ggF.
MSG ALF "MIXAL" \FjY;rqfKe
ALF " HELL" ;.b^A
ALF "O WOR" (Kaunp5_`
ALF "LD " K"9V8x3Wg
END START end of the program y`-5/4
Qb&gKQtt@
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Nuva RTv zS]
<..直接输出..> oH kjMqju
Hello, world! qn~:B7f
5`[B:<E4
<..或者..> w1
tg7^(@
Q)}z$h55
<. 5tl uS
// 不带换行 HDT-f9%}<4
? "Hello, world!" D^\2a;[AxA
2V =bE-
// 或者 "3:TrM$|A
]$?\,`
// 带换行 f)!7/+9>
?? 'Hello, world!' %R LGO&
.> f2RIOL,
o:Q.XWa@MG
?FwjbG<
OCaml Af7&;8pM
let main () = HU+zzTgI
print_endline "Hello world!";; =CjN=FM
nwPU{4#l<
UvM_~qo
Pascal dLy-J1h\
program Hello; ,N`D{H"F
begin M[,G#GO
writeln('Hello, world!'); z+6%Ya&ls
end. DU1\ K
Gu@Znh-D
bdkxCt
Perl 1PjqXgN5p
#!/usr/local/bin/perl Blnc y
print "Hello, world!\n"; uQtwh08i
'7TT4~F
d3K-|
PHP Q!"W)tD
<?php ,7|Wf
%X
print("Hello, world!"); I6Mr[#*
?> UIi`bbJ
>PMLjXK
5WG:m'$$
Pike 9V( esveq
#!/usr/local/bin/pike F 5FzT^
int main() YUsMq3^&
{ m kHcGB!~
write("Hello, world!\n"); 3Mt Alc0xp
return 0; x$Tf IFy
} caC(KK#<
\]+57^8r
N(BCe\FV
PL/I `<^1Ik[g
Test: procedure options(main); 3WQ"3^G
declare My_String char(20) varying initialize('Hello, world!'); 2rJeON
put skip list(My_String); bjYaJtn
end Test; #Do#e
{=+
2OQDG7#Kc
B!zqvShF
Prolog cJ!C=J
goal CxRhMhvP
write("hello,world!"). yCG<qQz
@%sr#YqY
1I -LGe[Q
Python +F3`?6UXz
#!/usr/local/bin/python lc2RMu
print "Hello, world!" FkJX)
1xE*quhrh
8'6$t@oT9w
REXX #8[iqvE
say "Hello, world!" e<[0H 8
OGqsQ
, %%}d9
Ruby fK{[=xMr@
#!/usr/bin/ruby JDy ;Jb
print "Hello, world!\n" =j{r95)|u
b&1-tYV
<m3or
Scheme /)E'%/"A
(display "Hello, world!") duk:: |{F
(newline) KGoHn6jM
l`A4)8Y@
,t=12R]>
sed (需要至少一行输入) ,dO$R.h
sed -ne '1s/.*/Hello, world!/p' )mb RG9P
XU19+mW=P
:u$+lq
Smalltalk XTOZ]H*^
Transcript show: 'Hello, world!' x3++JG
bR;Zc
+)gXU Vwd
SNOBOL gYy9N=f+
OUTPUT = "Hello, world!" /P3s.-sL
END O#5ll2?
, JUP
p*
SQL Y!tjaL 9D
create table MESSAGE (TEXT char(15)); >&3ATH;&(
insert into MESSAGE (TEXT) values ('Hello, world!'); OK^0,0kS3
select TEXT from MESSAGE; N2x!RYW
drop table MESSAGE; Vt!<.8&`
,$qqHSd1M
qm&Z_6Pw
Tcl 4/Bn9F
#!/usr/local/bin/tcl %g<J"/
puts "Hello, world!" }_{QsPx9
(s\":5
C
0fd\R_"d.
TScript U~w g'
? "Hello, world!" t9Nu4yl
*(4TasQu
Y/1,%8n
Turing o-D,K dY
put "Hello, world!" Iu -CXc
AIXvS*Y,
WZ<kk T
UNIX-style shell OLdD3OI
程序中的/bin/sh可改为您使用的shell ,t]qe
<15POB
#!/bin/sh %$l^C!qcY
echo 'Hello, world!' -Jtx9P
6^DsI
;I+"MY7D
GUI b:iZ.I
MK<VjpP0(
Delphi 9A4h?/
program HelloWorld; @-ma_0cZQ
uses /@.c
59r
Dialogs; Q:x:k+O-
begin ~BVK6
ShowMessage('Hello, World!'); h!*++Y?&0
end. WSY&\8
-|DSfI#j
@MV%&y*z.
Nuva PZdYkbj
<. epH48 )2
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) .2b) rKo~
.> G D$jP?
28j=q-9Z
`37GVo4
Visual Basic |
3`qT#p{
MsgBox "Hello, world!" ; YaR|)B
'或者 }bv0~}G4
Print "Hello, world!" 7\
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~Lc>~!!t
wnE
c
Visual FoxPro $<UX/a\sH
? "Hello, world!" 0)8QOTeT
K+` Vn
p.2>-L
X11 LaE;{ jY
用一个程序 vl@t4\@3
1 ]@}+H
xmessage 'Hello, world!' 9@yP;{Q
k:4?3zJI
用C++和gtkmm 2 bmAgB}Ior
sK:,c5^
#include <iostream> ~PNO|]8j
#include <gtkmm/main.h> X*~NE\
#include <gtkmm/button.h> gKZ{ O
#include <gtkmm/window.h> |<.b:e\4
using namespace std; {/BEO=8q2
dv0TJ 0%
class HelloWorld : public Gtk::Window 0;)6ZU
{ |zu>G9m
public: K)qbd~<\
HelloWorld(); sQ^>.yG
virtual ~HelloWorld(); Y\T*8\h_[
protected: rI}E2J
Gtk::Button m_button; ~zz |U!TG
virtual void on_button_clicked(); ru`;cXa,
}; !dLz ?0
s\&_Kbw]c
HelloWorld::HelloWorld() : m_button("Hello, world!") )).;p_nLZ
{ 1V`]sfRK
set_border_width(10); -aNTFt~|[
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); 9ok|]d P
add(m_button); R7KQ-+Zb
m_button.show(); (Df<QC`0v
} N,ik&NIWy
FZ>*<&
HelloWorld::~HelloWorld() {} vc2xAAQ
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