“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。 `gI`Cq4
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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》。 !rmXeN]-r
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以下是用不同语言写成的Hello World程序的几个例子: gu'Y k
Ada EN
OaC
with Ada.Text_Io; use Ada.Text_Io; ?fO
2&)r
procedure Hello is \tL9`RKpg
begin G$hH~{Y$
Put_Line ("Hello, world!"); y^M~zOe
end Hello; -68E]O
< 0S+[7S"
jt({@;sU[<
汇编语言 q(tdBd'o6
K|"97{*|2
x86 CPU,DOS,TASM UG)XA-ez
MODEL SMALL qU ESN!
IDEAL a'sa{>
STACK 100H Oy U[(
BU\P5uB!V
DATASEG >.P/fnvJ
HW DB 'Hello, world!$' kpxWi=y
*k&yD3br-V
CODESEG R-lB.9e#M
MOV AX, @data z]P=>w
MOV DS, AX aSu6SU
MOV DX, OFFSET HW ifo^
M]v
MOV AH, 09H &C_0JyT
INT 21H d%IM`S;fh
MOV AX, 4C00H O'5xPJ
INT 21H T#L/HD
END Tt,<@U[/}
P)hZFX
J;?#Zt]`L
x86 CPU,GNU/Linux,NASM <r[5 S5y
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). QG~4<zy
;Enter this into "hello.asm" then type: egOZ.oV
;"nasm -f elf hello.asm" H;#3S<
;"ld hello.o -o hello" zn5U(>=c
;"./hello" P[;<,U;'HO
^|h5*Tb
section .data ;data section declaration F*&A=@/3
msg db 'Hello World!',0AH XiP xg[;
len equ $-msg ;string length ]h]| PdN
fSe$w#*I
section .text ;code section declaration -2)6QKh~D
global _start ;entry point (start of execution) !/1aot^(
_start: mov edx,len ;string length *'b3Z3c,;
mov ecx,msg ;string start u`%Kh_
mov ebx,1 ;file handle: stdout (A\X+S(
mov eax,4 ;sys_write g;N)K3\2
int 80h ;kernel system call 80i-)a\n
]u;Ma
G=;
mov ebx,0 ;return value *$
mov eax,1 ;sys_exit 9qhX\, h
int 80h ;kernel system call ^lF'KW$
s7x&x;-
8M{-RlR
x86 CPU,Windows,MASM32 [2]Ti_
>D
.386 .XD.'S
.model flat,stdcall Ch3{q/-g
option casemap:none &$\B&Hp@
;Include 文件定义 E?L^L3s
include windows.inc 6qCRM *V
include user32.inc .@#GNZe
includelib user32.lib ]n8
5.DF
include kernel32.inc r8o9C
includelib kernel32.lib -vRZCIj!
;数据段 r&^xg`i[z>
.data `s0`kp
szCaption db 'A MessageBox!',0 RW4}n<
88
szText db 'Hello,world!',0 \Lp|S:u
;代码段 TFIP>$*_C
.code (?9 @nS
start:
4
_*^~w
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK !B&OK&*
invoke ExitProcess,NULL |4=Du-e
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> h92'~X36
end start ;IN!H@bq
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Bh'_@PHP
AWK !=C74$TH
BEGIN { print "Hello, world!" } 3#=%2\
j. @CB`
f!3$xu5
BASIC C-vFl[@a0
传统版BASIC(例如GWBASIC): ("G
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-tQi~Y[]
10 PRINT "Hello, world!" *.4VO+^
20 END /< OoZf+[
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或在提示符输入: f!|$!r*q
3Pj#k|(f[0
?"Hello, world!":END 7P&O{tl(
({"jL*S,q
现代版BASIC(例如Quick BASIC): A/WmVv6
1MntTIT
Print "Hello, world!" ^)qOILn
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以下的语句在Quick BASIC中同样有效: }bU1wIW9I
G*oqhep
? "Hello,world!" 676r0`
Yqpe2II7
91|0{1
BCPL 'Gr}<B$A3
GET "LIBHDR" Q+Sx5JUR~
vz\^Aa
#fv
LET START () BE OoG Nij
$( BZ '63
WRITES ("Hello, world!*N") 6k1;62Ntk
$) kYwV0xQ
a#U2y"
T-;|E^
Befunge (
04clU^F
"!dlrow olleH">v qs9q{n-Aj
, T:~c{S4&
^_@ l r16*2.
G_5uO58
_LYI#D
Brainfuck X,ES=J0
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< rw9 m+q
+++++++++++++++.>.+++.------.--------.>+.>. :1O49g3R
h(<2{%j
xcVF0%wVC
C )BJ Z{E*
#include <stdio.h> X:0-FCT;\
+*'^T)sj/
int main(void) \&KfIh8
{ >[$j(k^
printf("Hello, world!\n"); 1@$n)r`
return 0; AW6 "1(D
} 2^V/>|W>w
I(bxCiRV
`vMrlKq
C++ "8BZj;yS
#include <iostream> jDyG~de
UWf@(8
int main() %o4d(C B
{ KKFV+bK)
std::cout << "Hello, world!" << std::endl; :iKk"r,2P[
return 0; eeOE\
} 0@BhRf5
::&hfHR*P
lD K<gd
C++/CLI n'i~1pM,?
int main() ZLN79r{T
{ bvR0?xnq
System::Console::WriteLine("Hello, world!"); Omkpjr(1
} /:BM]K
@hz~9AII9
/'g/yBY
C# (C Sharp) :S_3(/} \
class HelloWorldApp z:Q4E|IX
{ Qf$3!O}G
public static void Main() 1(nK |
{ ]b&"](A
System.Console.WriteLine("Hello, world!"); vz87]InI
} zCuN8
} 0v"h/
[VL+X^
]"T1clZKd(
COBOL u A=x~-I
IDENTIFICATION DIVISION. MlVVST
PROGRAM-ID. HELLO-WORLD. u?a4v \
GcHy`bQbiX
ENVIRONMENT DIVISION. 5 `Mos
&Bc$8ZR
DATA DIVISION. +~Lt;xNFk
@D3|Ak 1
PROCEDURE DIVISION. 0|L%)'F
DISPLAY "Hello, world!". Jh6 z5xUV
STOP RUN. 1>"Yw|F-|3
]Av)N6$&-Z
C8oAl3d+h
Common Lisp =Felo8+
(format t "Hello world!~%") C5ia9LpRX
:Qekv(z
!^h{7NmP[
DOS批处理 w~lxWgaY7
@echo off aR@s.
ll
echo "Hello, world!" o;^k"bo6
$!m (S&f
wpW3%r;9
Eiffel 9Z_!}eY2mc
class HELLO_WORLD wV&UB@
Q"Ur*/-U
creation {] Zet}2
make %
a9C]?
feature Mu>WS)1lS
make is 2 yY.rs
local E$?:^ausu
io:BASIC_IO N
Dg*8i
do \ld{Z;e
!!io C3#mmiL-
io.put_string("%N Hello, world!") qe@ctHpn
end -- make h p<NVST
end -- class HELLO_WORLD K[G=J
)RZ:\:c
.~L^h/)Gjy
Erlang !92zC._
-module(hello). c1CUG1i
-export([hello_world/0]). +o*&JoC
[$+N"4
hello_world() -> io:fwrite("Hello, World!\n"). &nXa/XIZ_
Ac,Qj`'V
uLK4tQ
Forth 0.4Q-?J
." Hello, world!" CR ]
1:pnd
tXu_o6]
-sqoE*K[8
Fortran Pd^v-}[
WRITE(*,10) $SAk|
10 FORMAT('Hello, World!') Y{v\m(D
STOP ~ 6`Ha@
END THXG~3J<
G|,'6|$jE
F/(z3Kf
HTML O&(@Ka
<HTML> sfuA
{c'v
<HEAD> ]>%M%B
<TITLE> Hello World! </TITLE> XSDudL
</HEAD> _ +?v'#
<BODY> Qjl.O HO
<p>Hello World!</p> Q&d"uLsx
</BODY> <:gNx%R
</HTML> m-h+UKt
MRn;D|Q
D3MRRv#
HQ9+ U`HSq=J
H :t#N.[=&#
D$W09ng-
tc2e)WZP
INTERCAL r:QLO~l/
PLEASE DO ,1 <- #13 N7WQ{/PSG
DO ,1 SUB #1 <- #238 41'|~3\X
DO ,1 SUB #2 <- #112 ^<"^}Jh.M
DO ,1 SUB #3 <- #112 XFx p ^
DO ,1 SUB #4 <- #0 4a6WQVS
DO ,1 SUB #5 <- #64 G&?,L:^t
DO ,1 SUB #6 <- #238 X$4MpXx
DO ,1 SUB #7 <- #26 PRyZ; @
DO ,1 SUB #8 <- #248 'K:zW>l
DO ,1 SUB #9 <- #168 q%H#04Yh
DO ,1 SUB #10 <- #24 #rs]5tx([
DO ,1 SUB #11 <- #16 b+rn:R
DO ,1 SUB #12 <- #158 d4]9oi{}
DO ,1 SUB #13 <- #52 kTQvMa-X9D
PLEASE READ OUT ,1 |5h~&kA
PLEASE GIVE UP iXJ3B&x
mO1r~-~AJ
{;T7Kg.C
Java FWJhi$\:D]
public class Hello .dvO Ut I[
{ +uD4$Wt_F
public static void main(String[] args) p+pBk$4
{ ivb?B,Lz0
System.out.println("Hello, world!"); K>a+-QWK3
} q0a8=o"|
} I\FBf&~
0K*|B.O
0qPbmLMK
JSP }+wvZq +c
<% -ghmLMS%t
out.print("Hello, world!"); SJXA
%> ^zs]cFN#%
^jiYcg@_[
/`b(} m
MIXAL {"x>ewAf
TERM EQU 19 the MIX console device number 4U1!SR]s
ORIG 1000 start address `YinhO:Z
START OUT MSG(TERM) output data at address MSG [IgB78_$
HLT halt execution ^ rB7&96C,
MSG ALF "MIXAL" 2[;4D/`*
ALF " HELL" S#9EBw7
ALF "O WOR"
?8O %k<?
ALF "LD " !9/1_Bjv
END START end of the program ;*Z.|?3MM
GOII
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d>f.p"B.gj
Nuva 6L)]nE0^
<..直接输出..> Q-qM"8I
Hello, world! P t)Ni
A3#^R%2)W
<..或者..> bx5f\)
3r[}'ba\
<. H}[kit*9
// 不带换行 R;{y]1u
? "Hello, world!" U~)i&":sN
ofu
{g
// 或者 -hpJL\ng
Q#2gjR r
// 带换行 ;<9 dND
?? 'Hello, world!' (i"@{[IP
.> WN+D}z]
Jn/"(mM
sr*3uI-)L
OCaml m/`"~@}&
let main () = rphfW:
print_endline "Hello world!";; zxV,v*L)
-q}c;0vL-a
b;;C><
Pascal AusCU~:>
program Hello; Xaca=tsO
begin T,sArKBI
writeln('Hello, world!'); A{3?G-]*
end. juAUeGT
!RJuH;8
-b7q)%V
Perl f.~-31
#!/usr/local/bin/perl wj'5D0
print "Hello, world!\n"; tsLi5;KA]
)l|/lj
Ca?:x tt
PHP Pl>S1
<?php f-O`Pp FQ
print("Hello, world!"); %nmD>QCe
?> 6]/LrM, 23
QQB\$[M!Z
t.7KS:
Pike heAbxs
#!/usr/local/bin/pike te 0a6
int main() _,U`Iq+X
{ j>?0Y
write("Hello, world!\n"); "|\G[xLOaW
return 0; u$"dL=s!
} SG)hrd
v`Iw:?)%
wTL&m+xr
PL/I ZE!dg^-L
Test: procedure options(main); 4Hk eXS.
declare My_String char(20) varying initialize('Hello, world!'); <yxEGjm
put skip list(My_String); =xa:>Vh#
end Test; $Eo)i
!D_Qat
C|@6rr9TA
Prolog mo$`a6[h<
goal |BO!q9633V
write("hello,world!"). ]4$t'wI.
?0U.1N
8w:A""
Python RwG@C|sG
#!/usr/local/bin/python aQzu[N
print "Hello, world!" i"#36CVT~
*gJ:irah
#-0}r
REXX \KGi54&Y
say "Hello, world!" sI@y)z
4l7FV<g
zJ*|tw4
Ruby u Z(vf
#!/usr/bin/ruby nO'lN<L
print "Hello, world!\n" s Y^#I
f:=y)+@1My
%LH~Im=
Scheme Spnshv8
(display "Hello, world!") Nan@SuKY
(newline) 3kAhvL
E*uz|w3S)Y
0E6tH&
;>
sed (需要至少一行输入) Jvk!a~e
sed -ne '1s/.*/Hello, world!/p' nkv+O$LXP
dK5|tWJX
/!V)2j,
Smalltalk 2hlb$N-hk
Transcript show: 'Hello, world!' x8#bd{
zNu>25/)(
'_f]qNy
SNOBOL 8 f""@TTp
OUTPUT = "Hello, world!" vS!%!-F
END 3rF=u:r7c
ifA)Ppt<`
8BL]]gT-I
SQL *gq~~(jH
create table MESSAGE (TEXT char(15)); Z'vic#
insert into MESSAGE (TEXT) values ('Hello, world!'); O> 5xFz'm
select TEXT from MESSAGE; PD-<D~7
drop table MESSAGE; tSP)'N<
n#{z"G
Qx
B0I/
{
Tcl |wnXBKV(
#!/usr/local/bin/tcl )}
I>"n
puts "Hello, world!" $IM}d"/9
P6n9yJ$,cb
0gR!W3dh
TScript D*Cn!v$
? "Hello, world!" 7Vn;LW
'zEmg}
!)Y T_ib
Turing X^?M4
put "Hello, world!" r#%e$
dB{VY+!
7S
+YQ$_
UNIX-style shell tAI<[M@
程序中的/bin/sh可改为您使用的shell D 7D:?VoR
W^es"\
#!/bin/sh 5uVSbo.
echo 'Hello, world!' 7K 8tz}
j}uVT2ZE%
*J ]2"~_.
GUI i]>)'i
?)8OC(B8q
Delphi yX-h|Cr"
program HelloWorld; s+EJXoxw
uses -<Wv7FNpD
Dialogs; Y-0o>:SM
begin ]M:=\h,t>
ShowMessage('Hello, World!'); Sk~( t
end. 0Gq}x;8H&
'b?Px}
j>OuNeo@4
Nuva i`FskEoijq
<. 4Ou|4WjnL
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 'Ti7}K
.> jjT|@\-u
%yVboA1
>=T\=y
Visual Basic &Z.zem?n
MsgBox "Hello, world!" l8$7N=Y
'或者 bv%A;
Print "Hello, world!" %, Pwo{SH
ySS
kw7
"_g3{[es!
Visual FoxPro 9d\B*OU
? "Hello, world!" U2lDTRt
Vb
_W&Nwd
l"C)Ia&/
X11 m(B,a,g<
用一个程序 */T.]^
L\CufAN
xmessage 'Hello, world!' myR}~Cj;q
K&\3j-8^
用C++和gtkmm 2 yV'<l
.N
hC nqe
#include <iostream> lZt{L0
#include <gtkmm/main.h> Y$@?Y/rhR
#include <gtkmm/button.h> 2[O\"a%
#include <gtkmm/window.h> &s+F+8"P+
using namespace std; B{In
"R8
7QO QG:-
class HelloWorld : public Gtk::Window fsA-}Qc
{ f|U
J%}$v;
public: lT<4c5%
HelloWorld(); ^:(:P9h
virtual ~HelloWorld(); )\!-n]+A
protected: JfrPK/Vn
Gtk::Button m_button; !6yyX}%o
virtual void on_button_clicked(); 'ot,6@~x>
}; OYj4G?c
|%i|P)]
HelloWorld::HelloWorld() : m_button("Hello, world!") #S*@RKSE|7
{ NV[_XXTv7
set_border_width(10); l6AG!8H
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); U&(TqRi,
add(m_button); 0cpI2
m_button.show(); ranlbxp2l
} GC<zL}
"1-|ahW
HelloWorld::~HelloWorld() {} `:4\RcTb/
[i
]
void HelloWorld::on_button_clicked() Q9\6Pn ]T
{ ,.g9HO/R1
cout << "Hello, world!" << endl; ssWSY(j]
} #VLO6
RfZZqeU
int main (int argc, char *argv[]) G;'=#c
^
{ _(TYR*
Gtk::Main kit(argc, argv); &ND8^lR=Y;
HelloWorld helloworld; p5`d@y\hj
Gtk::Main::run(helloworld); !6d6b@Mv
} 1z#0CX}Y/H
pYtvenBy
-9L[eYn
Java w`77E=
import java.awt.*; %. zcE@7*
import java.awt.event.*; ^<