“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。 `ts$(u.w
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将Hello World程序作为第一个学写的程序,现在已经成为一种传统。该程序最早出现在由Brian Kernighan和Dennis Ritchie写的计算机程序设计教程《C语言程序设计》。 Fo5FNNiID
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以下是用不同语言写成的Hello World程序的几个例子: XpB_N{v9w
Ada 5H<m$K4z
with Ada.Text_Io; use Ada.Text_Io; KOk4^#h@
procedure Hello is ;u_X)
begin l*Gvf_UH
Put_Line ("Hello, world!"); @<hb6bo,N
end Hello; 5y.WMNNv{
MzdV2.
_^Ubs>d=*
汇编语言 99e.n0
/$Nsd
x86 CPU,DOS,TASM 3w*R&
MODEL SMALL 2j[=\K]
IDEAL JzQ_{J`k
STACK 100H y4?0j:
xX&+WR
DATASEG vtg!8u4
HW DB 'Hello, world!$' x}Eg.S
{T$9?`h~M
CODESEG i#n0U/
MOV AX, @data y@S$^jk.
MOV DS, AX 3) <yod=
MOV DX, OFFSET HW A4x]Qh3OO
MOV AH, 09H t%0VJB,Q2
INT 21H yW=::=
MOV AX, 4C00H y&$A+peJ1
INT 21H NZ:,ph
END Y.(PiuG$G
%v
M-mbX
Ju@c~Xm
x86 CPU,GNU/Linux,NASM {BN#h[#B{
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). g*AWE,%=|
;Enter this into "hello.asm" then type: *aM=Z+
;"nasm -f elf hello.asm" ,q`\\d
;"ld hello.o -o hello" ,f%S'(>w
;"./hello" ~g]Vw4pv
I3L<[-ZE
section .data ;data section declaration zj{pJOM06
msg db 'Hello World!',0AH gD@){Ip
len equ $-msg ;string length lgL%u K)
BA:VPTZq
section .text ;code section declaration N)X3XTY
global _start ;entry point (start of execution) IVY]Ek EG~
_start: mov edx,len ;string length Woym/[i
mov ecx,msg ;string start reu*53r]
mov ebx,1 ;file handle: stdout Q~
w|#
mov eax,4 ;sys_write 0
1rK8jX
int 80h ;kernel system call W' VslZG
6Pl<'3&
mov ebx,0 ;return value MAR'y8I
mov eax,1 ;sys_exit Gx/Oi)&/
int 80h ;kernel system call ASA,{w]
m.rmM`
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x86 CPU,Windows,MASM32 Rh{f5-
.386 eF$x 1|
.model flat,stdcall JG rWHIsNV
option casemap:none %$Tji
;Include 文件定义 "%w u2%i
include windows.inc x=P\qjSa
include user32.inc By!o3}~g
includelib user32.lib m+[Ux{$
include kernel32.inc VscE ^'+
includelib kernel32.lib zR:L!S
;数据段 F@KGj|
.data &K#M*B,*p
szCaption db 'A MessageBox!',0 ""G'rN_=Bi
szText db 'Hello,world!',0 =j]<t
;代码段 oJz^|dW
.code +mj y<~\
start: $qnZl'O>
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK QA`sx
invoke ExitProcess,NULL QZ
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> *L^,|
end start Z@S3ZGe
.|70;
U%QI
a TN*
AWK zwjgE6
BEGIN { print "Hello, world!" } [}=B8#Jl-C
L L~%f
&_
*])
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BASIC vpr.Hn
传统版BASIC(例如GWBASIC): R
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jV1.Yz(`
10 PRINT "Hello, world!" EV%gF
20 END R&k<AZ
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或在提示符输入: 8Fu(Ft^9
"<1{9
?"Hello, world!":END YjKxb 9
}&J q}j
现代版BASIC(例如Quick BASIC): :crW9+
FvjPdN/L?R
Print "Hello, world!" dR,fXQm
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以下的语句在Quick BASIC中同样有效: <\^8fn
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? "Hello,world!" sDlO#
YU'E@t5
sUQ@7sTj
BCPL ?0SJfh
GET "LIBHDR" hHnYtq
}19\.z&J
LET START () BE BQMpHSJ_
$( n{mfn*r.
WRITES ("Hello, world!*N") U'bEL^Jf
$) ?Z/V~,
n/:33DAB
eD6fpe\(
Befunge @*((1(q
"!dlrow olleH">v 1oGw4kD^x
, >|UOz&
^_@ /*mI<[xb
x s|FE3:a
`X&gE,Ii
Brainfuck +cN8Y}V
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< .aQ \jA
+++++++++++++++.>.+++.------.--------.>+.>. (O3nL.
2P0*NQ
F={a;Dvrn
C UP,c |
#include <stdio.h> 83#mB:^R
}o`76rDN
int main(void) 37o;;
{ +23xev
printf("Hello, world!\n"); U>N1Od4vTO
return 0; L4nYXW0y
} wbl&
ZD{LXJ{Vm
y}|s&4Sq
C++ S<Xf>-8w
#include <iostream> Y$@?.)tY
Lp9E:D->
int main() oCz/HQoBk
{ &F~T-i>X
std::cout << "Hello, world!" << std::endl; vEJbA
return 0; <)D$51 &0
} 9\7en%( M
zTU0HR3A
'D1xh~
C++/CLI H4+i.*T#
int main() N(yzk_~
{ +6+i!Sip
System::Console::WriteLine("Hello, world!"); eJ-nKkg~a
} E7hY8#G
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sfl<qD+?
C# (C Sharp) F:S}w
class HelloWorldApp O:K2Y5R?B
{ 0o&5]lEe
public static void Main() ]D\D~!R
{ VI*$em O0
System.Console.WriteLine("Hello, world!"); >XfbP]
} RZTiw^
} yJIscwF
;aVZ"~a+\
9hyn`u.
COBOL ;RlxD 4p
IDENTIFICATION DIVISION. jmG~Un M
PROGRAM-ID. HELLO-WORLD. CU!Dhm/U
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ENVIRONMENT DIVISION. 2D5StCF$O
#Gi$DMW
DATA DIVISION. pMM8-R'W-
]7A'7p$Y
PROCEDURE DIVISION. !j-Z Lq:;
DISPLAY "Hello, world!". 7b+6%fV
STOP RUN. hM!a_'
5|)W.*Q
d&>^&>?$zh
Common Lisp 5)X=*I
(format t "Hello world!~%") cFX p
GTHt'[t@;
$%f&a3#
DOS批处理 ~a2}(]
@echo off 5[0?g@aO
echo "Hello, world!" f
_:A0
j1<Yg,_.p
/PKN LK
Eiffel #KvlYZ+1
class HELLO_WORLD M<&= S
{P-):
creation E"IZ6)Q
make Dw"\/p:-3
feature ;n;p@Uu[
b
make is Q/Rqa5LI:
local h{qgEIk&
io:BASIC_IO 8eRLy/`gd
do #<xm.
!!io 6aj!Q*(WT
io.put_string("%N Hello, world!") \{NO?%s0p
end -- make VIbq:U
end -- class HELLO_WORLD o4WDh@d5S
N2o7%gJw
*m (=V1"
Erlang \OoWo
-module(hello). %a7$QF]
-export([hello_world/0]). @ Nm@]q
~}Pfu
hello_world() -> io:fwrite("Hello, World!\n"). B#R|*g:x
EdX$(scu~B
NHE18_v5
Forth ~V6D<
." Hello, world!" CR NxILRKwO
0"SU_jQzv
Iga024KR
Fortran \b>]8Un"
WRITE(*,10) LR3*G7
10 FORMAT('Hello, World!') ?q [T
STOP y1#1Ne_
END L"aeG
\{D"
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7j{?aza
HTML ),!qTjD
<HTML> B-mowmJ3dg
<HEAD> )U#K
<TITLE> Hello World! </TITLE> s#GLJl\E_P
</HEAD> M3au{6y
<BODY> d_P` qA
<p>Hello World!</p> #0<XNLM
</BODY> Pzem{y7Ir
</HTML> 1 -b_~DF
$pz/?>!
+cRn%ioVi
HQ9+ GtHivC
H t#yuOUg
3(UVg!t
V VCZ9MVJ
INTERCAL uw8f ~:LT
PLEASE DO ,1 <- #13 !`r$"}g
DO ,1 SUB #1 <- #238 )M^
gT}M
DO ,1 SUB #2 <- #112 ]_$[8#kg
DO ,1 SUB #3 <- #112 p]"4#q\(
DO ,1 SUB #4 <- #0 &e3.:[~_?
DO ,1 SUB #5 <- #64 &nK<:^n
DO ,1 SUB #6 <- #238 qJw_
DO ,1 SUB #7 <- #26 y_[vr:s5pG
DO ,1 SUB #8 <- #248 I`#JwMU;m
DO ,1 SUB #9 <- #168 J~- 4C)
DO ,1 SUB #10 <- #24
AOx[
DO ,1 SUB #11 <- #16 S8gs-gL#Og
DO ,1 SUB #12 <- #158 d d;T-wa}
DO ,1 SUB #13 <- #52 %jM,W}2
PLEASE READ OUT ,1 3$JoDL(Z
PLEASE GIVE UP @%SQFu@FJ
W_ZJ0GuE(
@o.I ;}*N
Java !_(Tqyg&
public class Hello UCWBYC+
{ Ir]\|t
public static void main(String[] args) zW nR6*\
{ ?h2}#wg
System.out.println("Hello, world!"); `y0FY&y=
} zBH2@d3W
} WEpoBP
CL
V43H/hl
)`}:8y?
JSP aQ~s`^D
<% xN(|A}w
out.print("Hello, world!"); !!y a
%> .wr>]yN
nj4/#W
i mM_H;-X
MIXAL eDB ;cN
TERM EQU 19 the MIX console device number -{A<.a3P}=
ORIG 1000 start address J8D,ZfPN`d
START OUT MSG(TERM) output data at address MSG o" SMbj
HLT halt execution GKCroyor
MSG ALF "MIXAL" 9!tW.pK5
ALF " HELL" \j.:3Xr
ALF "O WOR" tg/H2p^Y
ALF "LD " A)KZa"EX
END START end of the program |7Kbpj
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I2DpRMy
Nuva !o-@&q
<..直接输出..> YbLW/E\T
Hello, world! $ulOp;~A%
L=h'Qgk%
<..或者..> .sA.C]f
<\FH fE
<. :H[6Lg\*
// 不带换行 r_.S>]
? "Hello, world!" *$*ce|V5
Vz[C=_m
// 或者 a: K[ y
CH/rp4NeSy
// 带换行 8r!zBKq2~
?? 'Hello, world!' nF/OPd
.> ~_ a-E
$]8Q(/mbK
F<w/PMb
OCaml RT5T1K08I
let main () = MY/}-*|
print_endline "Hello world!";; LIdF 0
::F|8
Np)lIGE
Pascal :i7;w%B
program Hello; ]N[ 5q=A5
begin GH
xp7H
writeln('Hello, world!'); Q7A MRrN
end. |D.ND%K&
;=UsAB]
&-=5Xc+Z
Perl u-C)v*#L
#!/usr/local/bin/perl U%<Inb}ad
print "Hello, world!\n";
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QdC<Sk!G
W'.m'3#z
PHP w*MpX
U<
<?php Ca3~/KrM
print("Hello, world!"); t0I{q0
?> =rK+eG#,
>OK^D+v"j
8.~kK<)!
Pike E~:x(5'%d
#!/usr/local/bin/pike %PJQ%~
A
int main() -!9G0h&i|
{ nxHkv`s k
write("Hello, world!\n"); Y4(
return 0; llsfTrp
} *\q
d
MJrR[h]
YAmb`CP
PL/I >"<Wjr8W!$
Test: procedure options(main); 3yXY.>'
declare My_String char(20) varying initialize('Hello, world!'); EZ`{Wnbq
put skip list(My_String); RX5dO%
end Test; CWS4lx
b_):MQ1{
xP,hTE
Prolog jNy.Y8E&
goal V470C@
write("hello,world!"). qyNyBr?
e~':(/%|5;
"wHFN>5B
Python D#)b+7N-
#!/usr/local/bin/python E+JqWR5
print "Hello, world!" V2G6Kw9gt
]$_NyAoBb
kSh( u
REXX ?F;8Pa/
say "Hello, world!" !v0LBe4
>dG[G>
C>w|a
Ruby = 9]~yt
#!/usr/bin/ruby )>- =R5ZV
print "Hello, world!\n" \'bzt"f$j
O0y_Lm\
09Cez\0
Scheme 0K2`-mL
(display "Hello, world!") C2Tyoza
(newline) IN G@B#Cl
YUIi;
;d9QAN&0}
sed (需要至少一行输入) xF44M]i
sed -ne '1s/.*/Hello, world!/p' ^v`\x5"Vp
C73kJa
^`>/.gL
Smalltalk &pp|U}
Transcript show: 'Hello, world!' Y.r+wc]
5[u]E~Fl}
9
|vLwQ
SNOBOL 9p2&)kb6
OUTPUT = "Hello, world!" {jX2}
END >J>[& zS
3jC_AO%T
t1y4 7fX6
SQL 46&/gehr
create table MESSAGE (TEXT char(15)); !=P1%
insert into MESSAGE (TEXT) values ('Hello, world!'); "!%l/_p?
select TEXT from MESSAGE; 'CkIz"Wd
drop table MESSAGE; $'hEz/
n#OB%@]<V
?m?::R H
Tcl e&aWq@D
#!/usr/local/bin/tcl R[x_j
puts "Hello, world!" 3x'|]Ns
xjj6WED
}2<7%FL
TScript k{SAvKx=
? "Hello, world!" ^qD$z=z-
|2n4QBH!
Y\?"WGL)p
Turing FE|JHh$
put "Hello, world!" @wNG{Stj
6MMOf\
OA"q[s
UNIX-style shell JB[~;nLlC
程序中的/bin/sh可改为您使用的shell )C]gld;8
W+ko q*P
#!/bin/sh Y^EcQzLw
echo 'Hello, world!' i5Yb`Z[Y
l#Y,R 0
XLOh7(
GUI D2B%0sfl~
k5.Lna
Delphi X))/ m[_[
program HelloWorld; <s<n
uses KEjWRwN
Dialogs; O5nD+qTQ#
begin .MoU1n{Yc
ShowMessage('Hello, World!'); RO/FF<f
end. GH:jH]u!V
]R f[y
zL `iK"N`
Nuva
MC.)2B7
<. ofw3S|F6
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) qm8B8&-
.> JNXq.;:`Q
CSq4x5!_7>
\B,@`dw
Visual Basic P%&0]FCx
MsgBox "Hello, world!"
>rKIG~P_
'或者 c?[I?ytl
Print "Hello, world!" MH9q ;?.J
;LSANr&
1 +{{EOZ4
Visual FoxPro %oa-WmWm
? "Hello, world!" *Y7u'v
W_(j3pV?Ml
EGU
0)<
X11 SdxDa
用一个程序 hxd`OG<gF
94.DHZqh
xmessage 'Hello, world!' ;m{1_ 1
BdblLUGK#
用C++和gtkmm 2 cZU=o\
k(7&N0V%zz
#include <iostream> lKp"xcAD
#include <gtkmm/main.h> .P%bkD6M
#include <gtkmm/button.h> YdC6k?tzS
#include <gtkmm/window.h> Nk VK
using namespace std; -g Sa_8R
FX`>J6l:X
class HelloWorld : public Gtk::Window KD7dye
{ Tg)|or/%
public: O6a<`]F
HelloWorld(); _w+:Dv~*a
virtual ~HelloWorld(); ?u=Fj_N_
protected: j8{i#;s!"
Gtk::Button m_button; rt~d6|6
virtual void on_button_clicked(); Tc &z:
}; (U_ujPD ?
oiT[de\S
HelloWorld::HelloWorld() : m_button("Hello, world!") j2.|ln"!
{ {Y=WW7:Qx
set_border_width(10); ~{B7 k:
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); =llvuUd\n
add(m_button); pF:$
ko
m_button.show(); m6&~HfwN
} 2E/"hQw
l2rd9-T
HelloWorld::~HelloWorld() {} J0\Fhe0'
uHvp;]/0\
void HelloWorld::on_button_clicked() lC("y'
::
{ a85$K$b>
cout << "Hello, world!" << endl; xU>WEm2
} RD'Q :W
#crQ1p) \
int main (int argc, char *argv[]) 5Y'qaIFR
{ ~f1%8z
Gtk::Main kit(argc, argv); lVR~Bh
HelloWorld helloworld; _j/<{vS y
Gtk::Main::run(helloworld); #TX/aKr:
} E+R1 !.
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i6tf2oqO7
Java ith
3=`3
import java.awt.*; m}aB?+i
import java.awt.event.*; .4M.y:F
tI TS1
public class HelloFrame extends Frame RJ ||} 5
{ x?p1
HUK
HelloFrame(String title) @qqg e'
{ 6YLj^w] %
super(title); )72+\C[*~r
} YY((V@|K
public void paint(Graphics g) nE&