“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。 =\Td~>
_1[5~Pnh
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》。 xcfEL_'o
l0Wp%T
以下是用不同语言写成的Hello World程序的几个例子: "#x<>a)O\
Ada Q:$<`K4)
with Ada.Text_Io; use Ada.Text_Io; qn}w]yGW
procedure Hello is ]dB6--
begin D2x-Wa
Put_Line ("Hello, world!"); <^+~?KDZM
end Hello; H)S&sx#q]
iTi]D2jC
`Y`Ujr\6
汇编语言 n2\;`9zm
1t{h)fwi
x86 CPU,DOS,TASM e_6VPVa
MODEL SMALL (i4=}Kn2
IDEAL .XR`iXY
STACK 100H YX38*Ml+V
dXgj
DATASEG ML?%s`
HW DB 'Hello, world!$' e
W&;r&26
gZ6]\l]J{
CODESEG mZsftby}
MOV AX, @data /Y("Q#Ueq
MOV DS, AX )`?Es8uW
MOV DX, OFFSET HW co<-gy/mCR
MOV AH, 09H 47s<xQy
INT 21H wzhM/Lmo\z
MOV AX, 4C00H :eqDEmr>
INT 21H ehQ"<.sQ
END /*J}7
is K~=
fNOsB^Y
x86 CPU,GNU/Linux,NASM t b5k|
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). kW>Q9Nc=V
;Enter this into "hello.asm" then type: z+5l:f
;"nasm -f elf hello.asm" ~[bS+]d!
;"ld hello.o -o hello" i{zg{$ U
;"./hello" UD6D![e
'3B`4W,
section .data ;data section declaration F/z$jj)
msg db 'Hello World!',0AH L<bZVocOb_
len equ $-msg ;string length Onoi ^MDy
NQzpgf|h
section .text ;code section declaration v2R41*z,
global _start ;entry point (start of execution) %KL"f
_start: mov edx,len ;string length y&T(^EA;
mov ecx,msg ;string start a-\\A[E
mov ebx,1 ;file handle: stdout qa
'YZE`
mov eax,4 ;sys_write ?eD,\G
int 80h ;kernel system call 5^lroC-(x
4/;
X-
mov ebx,0 ;return value \ZiZX$
mov eax,1 ;sys_exit `C 'WSr
int 80h ;kernel system call 5&]|p'"W\
(CKx
s
I@
7Yp;B:5@
x86 CPU,Windows,MASM32 ro{q':Z3
.386 ]nE_(*w
.model flat,stdcall m~Q]#r
option casemap:none = Ly7H7Q2
;Include 文件定义 kgfOH.P
include windows.inc W!B4~L
include user32.inc Z}_{@|
includelib user32.lib w5uOi}T\
include kernel32.inc b'Cy!d r
includelib kernel32.lib |/K+tH
;数据段 idiJ|2T"G
.data <1#v}epD#
szCaption db 'A MessageBox!',0 1.WdxMpW9
szText db 'Hello,world!',0 c$aTl9e
;代码段 (3YqM7cqt
.code F#S^Q`
start: qGG
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK sIQd}
invoke ExitProcess,NULL hYRGIpu5
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Ql8E9~h
end start Qp8.D4^@3
(XYYbP
(5[|h
AWK fF!Mmm"
BEGIN { print "Hello, world!" } [OFg
(R-
~@=:I
"5Oi[w&F5
BASIC A-gNfXP,D
传统版BASIC(例如GWBASIC): gNr/rp9A$m
;EstUs3
10 PRINT "Hello, world!" ;}),6R
20 END ZM"J5}h
4Fhiac
或在提示符输入: L12m ;
`=b)fE
?"Hello, world!":END \zA$|)
x
O[[:3!6q
现代版BASIC(例如Quick BASIC): h_6QVab@
hl}@ha4'
Print "Hello, world!" .QX|:]|n
=&?}qa(P
以下的语句在Quick BASIC中同样有效: -DDH)VO
'/+l\.z"&
? "Hello,world!" 4~-"k{Xt
b}'XDw
Qj(q)!Ku
BCPL "'p;Udt/Qm
GET "LIBHDR" dA-ik
< V) T_
LET START () BE R?3^Kx
$( S N_!o2F2
WRITES ("Hello, world!*N") ^S!^$d*
$) sl^i%xJ|l'
~5$V8yfx h
g2%&/zq/
Befunge .Q
FGIAM
"!dlrow olleH">v 4"72
, *=i|E7Irg
^_@ 7M#2Tze}
5`,qKJ
I12WOL q
Brainfuck P6w!r>?6N
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< wic"a
Y<m
+++++++++++++++.>.+++.------.--------.>+.>. ]0P-?O:
,^,KWi9
b,kXV<KtU
C A2 r1%}{
#include <stdio.h> VD+TJ` r
|GgFdn`>
int main(void) ? _36uJo}
{ "e62g
printf("Hello, world!\n"); NYtp&[s2-
return 0; s>d@=P>R
} 5|YpkY
dn/0>|5OF(
n[4F\I>
C++ }R5>ja0
#include <iostream> *qKPZb~
vy W/f
int main() 1zNH[
{ #
JHicx\8l
std::cout << "Hello, world!" << std::endl; zOA{S~>
return 0; nWpqAb
} /h'V1zL#
k&|L"N|w
qk~ ni8
C++/CLI JmB7tRM8
int main() mmP>Ji
{ FC<aX[~&3
System::Console::WriteLine("Hello, world!"); qPsf`nI7
} YCod\} 3
>0kn&pe7#T
y7aBF13Kl
C# (C Sharp) HHa
XK
class HelloWorldApp 1(0LX^%
{ TJ9JIxnS
public static void Main() I3uS?c
{ dr3#?%
System.Console.WriteLine("Hello, world!"); 5{cbcuG
} l6ayV
} NT?Gl(
7J$
M\zM-B
COBOL V&82U w
IDENTIFICATION DIVISION. v^2q\A-?
PROGRAM-ID. HELLO-WORLD. c6gRXp'ID
1HYrJb,d
ENVIRONMENT DIVISION. :f (UZmV$
xab1`~%K
DATA DIVISION. 6J[ {?,
6|gC##T
PROCEDURE DIVISION. @,0W(
DISPLAY "Hello, world!". Pe[~kog,TP
STOP RUN. ?)<DEu:Y
^(7<L<H
_j t>%v4}4
Common Lisp 5X>b(`
(format t "Hello world!~%") V+My]9ki
urmx})=
M.|O+K z
DOS批处理 71`)@y,Z,
@echo off mX))*e4k
echo "Hello, world!" {xb8H
dLl/V3C6t
-Z)j"J
Eiffel q_PxmPE@3v
class HELLO_WORLD 5P~{*of
=Tv;?U C
creation A?[06R5E#
make !}7FC>Cx
feature z0[_5Cm/
make is KS%LX c('
local 3>FeTf#:
io:BASIC_IO QiBo]`)%
do ?,8|K B
!!io .Bxv|dji
io.put_string("%N Hello, world!") /KDKA)
end -- make )U0`?kD
end -- class HELLO_WORLD TtA6N8G
\FOoIY!.x
.OI&Zm-
Erlang l1*qDzb
-module(hello). #~]S
-export([hello_world/0]). \q9wo*A
Y'tPD#|r
hello_world() -> io:fwrite("Hello, World!\n"). i>Wsc?
?K9&ye_rgw
A.nU8
Forth c*LB=;npI
." Hello, world!" CR f5p>oXo4b
Pi|WOE2
;"/[gFD5u
Fortran C+\c(M a
WRITE(*,10) Ni]V)wGE;
10 FORMAT('Hello, World!') =.197)e
STOP H+Dv-*i
END 3ZRi@=kWz
/'KCW_Q
nT.i|(xd.
HTML i\E}!Rwl+
<HTML> z7B>7}i-
<HEAD> g\]2?vY.
<TITLE> Hello World! </TITLE> ;MH((M/AN
</HEAD> 5[<"_
<BODY> -Zs.4@GH
<p>Hello World!</p> Q+L;k
R
</BODY> "9W]TG
</HTML> PvW {g5)S
AAbI+L0m{
(`C#Tq
HQ9+ 9t)A_}O
H 88%7
|C;8GSw>|F
uL!QeY>k\
INTERCAL hp ?4w) ,
PLEASE DO ,1 <- #13 @~t^zI1
DO ,1 SUB #1 <- #238 1Pya\To,m
DO ,1 SUB #2 <- #112 $7k"?M_
DO ,1 SUB #3 <- #112 -!_f-Nny
DO ,1 SUB #4 <- #0 qfJi[8".
DO ,1 SUB #5 <- #64 ./SDZ:5/
DO ,1 SUB #6 <- #238 7 YS 'Tf
DO ,1 SUB #7 <- #26 J+hiz3N
DO ,1 SUB #8 <- #248 04;E^,V
DO ,1 SUB #9 <- #168 4yOYw*X
DO ,1 SUB #10 <- #24 S$O+p&!X
DO ,1 SUB #11 <- #16 l|WdJn
o
DO ,1 SUB #12 <- #158 m/
D ~D~
DO ,1 SUB #13 <- #52 Ltv!;^Q5
PLEASE READ OUT ,1 3y#0Lb-y
PLEASE GIVE UP T!![7Rs
c~1+5&
`^3 N|76Y
Java '0\,waEu
public class Hello Uk@du7P1k
{ ky2n%<0]
public static void main(String[] args) 'mwgHo<u
{ Q,pnh!.-c
System.out.println("Hello, world!"); {owXyQ2mK
} <Wd#HKIG>l
} h2k"iO}
6}z-X*
aCxF{>n
JSP ,"6Bw|s
<% ^"lVTDsU
out.print("Hello, world!"); (^_j,4
%> 3C[#_&_l
~PaEhj&8
}%^N9AA8
MIXAL dWc'R wL
TERM EQU 19 the MIX console device number oRDqN]
ORIG 1000 start address CjFnE
START OUT MSG(TERM) output data at address MSG \kN?7b^
HLT halt execution <'y}y}%
MSG ALF "MIXAL" rdQKzJiX=U
ALF " HELL" 7+(on
ALF "O WOR" `kE ;V!n?
ALF "LD " RA];hQI?
END START end of the program o]R*6$
'{>R-}o[3
sej$$m R
Nuva 7uUo
DM
<..直接输出..> (5rfeSA^
Hello, world! MUQj7.rNa
+ *xi&|%
<..或者..> =1MVF
e]9Z]a2
<. P/!W']OO
// 不带换行 \ 8v^ hb
? "Hello, world!" K*!qt(D&
`;~A
// 或者 QsemN7B"<
*F:)S"3_~e
// 带换行 gT-"=AsxZQ
?? 'Hello, world!' \iP=V3
.> NIo!WOi
0<3->uK
}xa~U,#5
OCaml L'?7~Cdls
let main () = l('@~-Zy
print_endline "Hello world!";; mz>GbImVD~
'w$jVX/
FF5|qCV/z
Pascal te[#FF3{
program Hello; m;4qs#qCg?
begin n^lr7(!6
writeln('Hello, world!'); 3<
'bi}{
end. 1m~-q4D)V
W9D~:>^YP
<5 )F9.$
Perl {D$5M/$
#!/usr/local/bin/perl /:Q
print "Hello, world!\n"; <jAn~=Uq[,
4 (c{%%
mu*RXLai
PHP ljP<WD
<?php B?nw([4m
print("Hello, world!"); (=-6'23q)
?> Q"vhl2RX
"Snt~:W>
GBY-WN4sc[
Pike ?hmuAgOtbh
#!/usr/local/bin/pike 8wEUly
int main() A8X3|<n=
{ \\ZCi`O
write("Hello, world!\n"); ]N;\AXZ7
return 0; ?/}N
} I7
= 4%)A
YD{Ppz
Y"U t
PL/I oQiRjDLx
Test: procedure options(main); &cp
`? k
declare My_String char(20) varying initialize('Hello, world!'); _C3O^/<n4V
put skip list(My_String); jO0"`|(]s
end Test; PcQ\o>0")
fW
w+'xF!
l`<1Y|
Prolog ^)p+)5l
goal ;XIDu6
write("hello,world!"). .<zN/&MXf
z -c1,GOD
C=Tq/L w
Python {ePtZyo0
#!/usr/local/bin/python ZOBcV,K
print "Hello, world!" ipe8U1Sc
o~{rZ~
'
~1/*F%8
REXX nv<t$r
say "Hello, world!" .TM.
v5B
tc0(G~.N
$@HW|Y
Ruby eg1Mdg\a
#!/usr/bin/ruby FnPn#Cv>*
print "Hello, world!\n" U4NH9-U'
YuUJgt .1
wEF"'T
Scheme z"c,TlVN3
(display "Hello, world!") 4YSVy2x
(newline) 5gSe=|we*p
YU`}T<;bg
!l-Q.=yw
sed (需要至少一行输入) YB1Jv[
sed -ne '1s/.*/Hello, world!/p' ,MjlA{0
c'INmc
I|
MCAWn
H
Smalltalk DkEf;P
Transcript show: 'Hello, world!' 0|DyYu
fcTg/EXn
&u!MI
SNOBOL ti^=aB
OUTPUT = "Hello, world!" H0f] Swh0a
END =pBr_pGz=
9tWpxrig%
(l -l
Y
SQL PA*1]i#2M=
create table MESSAGE (TEXT char(15)); 7_R[=t
insert into MESSAGE (TEXT) values ('Hello, world!'); ?3%r:g4
select TEXT from MESSAGE; y>X(GF^
drop table MESSAGE; j>?`N^
PLJDRp 2o
\S_Ae;
Tcl = q(?ALGc
#!/usr/local/bin/tcl . H}R}^
puts "Hello, world!" 1QPz|3f@\
Ga_Pt8L6
H)h$@14xu
TScript I7\T :Q[
? "Hello, world!" qe5;Pq !G
_^g4/G#13c
IF cre
Turing xn>N/+,
put "Hello, world!" M.\XG}RR
Y!`pF
jwg*\HO,s
UNIX-style shell v|KGzQx$.*
程序中的/bin/sh可改为您使用的shell nvCp-Z$
EiDnUL(W7h
#!/bin/sh Ng2Z7k
echo 'Hello, world!' XmP,3KG2{S
h1)ny1;
- zUBK
GUI p"6ydXn%
g~2=he\C
Delphi ma xpR>7`j
program HelloWorld; nIZsKbnw
uses E[i#8_
Dialogs; QnJLTBv
begin kRr/x-"
ShowMessage('Hello, World!'); eE_$ ADEf
end. ->*~e~T
]T{v~]7:{
JAM]neKiX
Nuva dOK]Su
<. KF1Zy;
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) }lXor~_i
.> DS9-i2
Q-B/SX)!/
Y_6v@SiO
Visual Basic MJ$.ST
MsgBox "Hello, world!" oJ tmd}
'或者 ?,]eN&`
Print "Hello, world!" CED[\n
1>/ iYf
v$xurj:v#i
Visual FoxPro =4sx(<
? "Hello, world!" /x)i}M)
@r^s70{}
l$kO%E'
X11 |N}*
用一个程序 ;Ea8>
dq%C~j{v
xmessage 'Hello, world!' |&@`~OBa
r/@ Wn
用C++和gtkmm 2 i8KoJY"
-GMaK.4=
#include <iostream> mHAfK B
#include <gtkmm/main.h> DZ1.Bm0
#include <gtkmm/button.h> )G;Hf?M
#include <gtkmm/window.h> 89j:YfA=v
using namespace std; Q3Z?Z;2aR
N]14~r=
class HelloWorld : public Gtk::Window #|3,DZ|)F
{ f~,Ml*Zp
public: l8J2Xd @
HelloWorld(); ei>iXDt
virtual ~HelloWorld(); L&rtN@5;
protected: DAg*
Gtk::Button m_button; orYZ<,u
virtual void on_button_clicked(); U<r!G;^`
}; obN8+ j
Wsp c;]&
HelloWorld::HelloWorld() : m_button("Hello, world!") ;" D~F
{ +6}CNC9Mp
set_border_width(10); >|`1aCg,
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); 8GRB6-.h
add(m_button); \3]O?'
m_button.show(); 1M6^Brx
} =HB(N|9 _d
EiaP1o
HelloWorld::~HelloWorld() {} i`Qa7
9~$E+m(
void HelloWorld::on_button_clicked() ;q5|If
{ H |7XfM
cout << "Hello, world!" << endl; *_d N9
} *wsZ aQ
4<vi@,s
int main (int argc, char *argv[]) I(WIT=Wi<
{ Y@<jvH1
Gtk::Main kit(argc, argv); =}@1Z~
HelloWorld helloworld; %!AzFL
J|Z
Gtk::Main::run(helloworld); Vugb;5Vl
} Vr d16s
uix/O*^
kma>'P`G
Java ,L.V>Ae
import java.awt.*; _"OE}$C
import java.awt.event.*; '/OQ[f=K
)Z|G6H`c3
public class HelloFrame extends Frame y Tn<5T[H
{ ^16zZ*
HelloFrame(String title) R# .H&#
{ e2K9CE.O
super(title); &c