“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。 &j'k9C2p
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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》。 Eos;7$u[
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以下是用不同语言写成的Hello World程序的几个例子: fk2Uxg=[
Ada +=L+35M
with Ada.Text_Io; use Ada.Text_Io; RM%Z"pc Y6
procedure Hello is tg%<@U`7=
begin |Cfo(]>G
Put_Line ("Hello, world!"); |j8#n`'
end Hello; HF&dHD2f
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(Ze\<Y#cv
汇编语言 `"~ X1;
7|J&fc5BP
x86 CPU,DOS,TASM _{B2z[G}
MODEL SMALL y
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IDEAL CpgaQG^
STACK 100H ](ztb)
4Im}!q5;:<
DATASEG )OlYz!#?
HW DB 'Hello, world!$' H?ue!5R#L
(a,`Y.
CODESEG Xn!=/<TIVz
MOV AX, @data &$qIJvMiK
MOV DS, AX ]/R>nT
MOV DX, OFFSET HW *D7oHwDU
MOV AH, 09H D*HK[_5
INT 21H )B@&q.2B=
MOV AX, 4C00H @X/-p3729
INT 21H z%6egi>
END OWN|W,
%z
@T /
"VsS-b^ P
x86 CPU,GNU/Linux,NASM oY@]&A^ah
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). m1 p%,
;Enter this into "hello.asm" then type: el^<M,7!
;"nasm -f elf hello.asm" K^I$05idi
;"ld hello.o -o hello" )gR3S%Ju
;"./hello" dt>!=<|k
7vH4}S\
q
section .data ;data section declaration jd+HIR
msg db 'Hello World!',0AH !wrAD"l*@
len equ $-msg ;string length 9I|Q`j?p`
{#{nU NW
section .text ;code section declaration Oo\~'I
global _start ;entry point (start of execution) giN(wPgYP
_start: mov edx,len ;string length LR17ilaa'
mov ecx,msg ;string start @[rlwwG,
mov ebx,1 ;file handle: stdout [9p@uRE
mov eax,4 ;sys_write mL,{ZL ^
int 80h ;kernel system call .e:+Ek+
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mov ebx,0 ;return value %#]/]B/4
mov eax,1 ;sys_exit ?H!X
p
int 80h ;kernel system call t6+>Zr
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k"FY
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x86 CPU,Windows,MASM32 NL ceBok
.386 0g@*N4
.model flat,stdcall RQn3y-N]
option casemap:none 7nPm{=BG
;Include 文件定义 wi:d!,P`e
include windows.inc Rk{2ZUeg
include user32.inc hP1;$
includelib user32.lib C4C!-12
include kernel32.inc pq5bK0NQ
includelib kernel32.lib rHtX4;f+><
;数据段 +d6Jrd*
.data klj.\wg/p{
szCaption db 'A MessageBox!',0 Au?(_*/0
szText db 'Hello,world!',0 Yr:$)ap
;代码段 piiO5fK|
.code #+3I$ k
start: ?Vr~~v"fg8
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK ]"1\z>Hg
invoke ExitProcess,NULL "w{,ndZ
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> `udZ =S"/L
end start 3dI(gm6
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AWK nx4E}8!Lh
BEGIN { print "Hello, world!" } 0h 2MmI#
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<=~'Pd-f(
BASIC a% 82I::t
传统版BASIC(例如GWBASIC): &sPu3.p
&[}5yos
r
10 PRINT "Hello, world!" YWa9|&m1
20 END nHF
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或在提示符输入: $2*&\/;-E!
3nkO+qQ
?"Hello, world!":END 'P)[=+O?t
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现代版BASIC(例如Quick BASIC): KTu&R6|
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Print "Hello, world!" Aq P\g k
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以下的语句在Quick BASIC中同样有效: ]G2%VKkr
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? "Hello,world!" 12%4>2}~>
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vro5G')
BCPL s=|&NlO$
GET "LIBHDR" vR\[I V?
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LET START () BE FUTDR-q O
$( / k8;k56
WRITES ("Hello, world!*N") I*)eP||
$) `<l|XPv
j2|!h%{nI
GB_m&t
Befunge }tZA7),L
"!dlrow olleH">v ? &;d)TQ
, OKq={l
^_@ _A/ ]m4
7QkAr
,s1n!@9
Brainfuck X{riI^(
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< <ByDT$E_
+++++++++++++++.>.+++.------.--------.>+.>. IN9o$CZ:
*Cgd?*\7
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C &gR)bNIC_=
#include <stdio.h> H}c, P('
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int main(void) *8CE0;p'k
{ Kq0hT4w
printf("Hello, world!\n"); J#W>%2"s
return 0; &hYjQ&n
} jNNl5.
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C++ &_E*]Sj\
#include <iostream> #0 WO~wL
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int main() ,P d2ZfZ
{
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std::cout << "Hello, world!" << std::endl; Vkb&'
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return 0; pf`li]j'V
} 2={ g'k(
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C++/CLI
r4qFEFV3%
int main() 8)k.lPoo.
{ 3?uP$(l
System::Console::WriteLine("Hello, world!"); , 0rC_)&B
} v+=_
J=U7m@))Y#
Q$9`QY*6"p
C# (C Sharp) b\\?aR
|
class HelloWorldApp p8^^Pva/
{ KXFa<^\o
public static void Main() !<2*B^
{ kB]|4CG{
System.Console.WriteLine("Hello, world!"); n%<.,(.(S
} zj;y`ENj
} !J'xk
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#UJ@P Dwil
COBOL Ve8`5
IDENTIFICATION DIVISION. i,,>@R
PROGRAM-ID. HELLO-WORLD. qwaw\vOA
4p~:(U[q
ENVIRONMENT DIVISION. L4;n$=e
2s6Hr;^w.1
DATA DIVISION. VuZmX1x)N
Ck.GN<#-^P
PROCEDURE DIVISION. (|5g`JDG
DISPLAY "Hello, world!". I$wP`gQh
STOP RUN. _bks*.9}3b
5J&n<M0G1
TCF[iE{
Common Lisp m|"MJ P
(format t "Hello world!~%") *qBMt[a
Qzh:*O
<$njU=YE&
DOS批处理 ^?xXP=/
@echo off ;|/7o@$n
echo "Hello, world!" }RUC#aW1
6]gs{zG
D0k7)\puQ
Eiffel D1O7S]j
class HELLO_WORLD Vq'&t<K#
28BiuxVW
creation >k\*NW
make f3l >26
feature Ruk6+U
make is SqTm/ t
local ]-fZeyY$
io:BASIC_IO V`WfJ>{;Z
do Z gU;=.
!!io s/To|9D
io.put_string("%N Hello, world!") FJL9x,%6
end -- make Cm;N5i
end -- class HELLO_WORLD iy: ;g
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\K?./*
Erlang Y*Q(v
-module(hello). IW BVfN->}
-export([hello_world/0]). Z21XlbK
(%fGS.TR
hello_world() -> io:fwrite("Hello, World!\n"). vP~F+z
@g
"
^eq5?L
nC&rQQFF
Forth @xkM|N?
." Hello, world!" CR ?I@3`?'
wc,y+C#V
Mm[%v
t40
Fortran &1':s|c
WRITE(*,10) Jc%>=`f
10 FORMAT('Hello, World!') Zz3#Kt5t3
STOP mifYk>J^9
END bo -Gh`
x)*/3[
7T2W%JT-,
HTML "+Qh,fTt
<HTML> #/jHnRrQ
<HEAD> =0]Mc$Ih
<TITLE> Hello World! </TITLE> [
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</HEAD> bL[PNUG
<BODY> Iw<c 9w8
<p>Hello World!</p> 2\5@_U^)h
</BODY> mmKrmM*1
</HTML> 25~$qY_
sw@2
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7:p]~eM)
HQ9+ c,~44Z
H #b" IX`5
YJ6vyG>%C
Vut.oB$
~
INTERCAL R{rV1j#@!a
PLEASE DO ,1 <- #13 a"1$z`ln
DO ,1 SUB #1 <- #238 n[WeN NU
DO ,1 SUB #2 <- #112 0F~9t!
DO ,1 SUB #3 <- #112 :<v$vER,&
DO ,1 SUB #4 <- #0 q}1$OsM
DO ,1 SUB #5 <- #64 6 aK--k
DO ,1 SUB #6 <- #238 7Rh:+bT
DO ,1 SUB #7 <- #26 JX/d;N7a
DO ,1 SUB #8 <- #248 %5KR}NXX6
DO ,1 SUB #9 <- #168 C1do]1VH
DO ,1 SUB #10 <- #24 FXSDN268
DO ,1 SUB #11 <- #16 GB+d0 S4
DO ,1 SUB #12 <- #158 & T|-K\*
DO ,1 SUB #13 <- #52 /&|pXBY$;
PLEASE READ OUT ,1 Yptsq@s
PLEASE GIVE UP :cEe4a
SBoF(0<
?^!dLW
Java m{5$4v,[
public class Hello \9?<E[
{ dB,#`tc=,
public static void main(String[] args) w:LCm `d
{ c]n03o
System.out.println("Hello, world!"); (hV"z; rI
} #~f+F0#%?
} 2Ee1mbZVw8
@/u`7FO$&
&e)p6Egl
JSP 9}mp,egV
<% ,Ex\\p-
out.print("Hello, world!"); E9:hK
%> bOdv]nQ1
%Uk/P
stG&(M
MIXAL &sgwY
TERM EQU 19 the MIX console device number Y_B 4s-
ORIG 1000 start address Xda<TX@-
START OUT MSG(TERM) output data at address MSG iHn]yv3
#
HLT halt execution W9Lg}[>:)
MSG ALF "MIXAL" -:>#w`H
ALF " HELL" -Mvw'#(0
ALF "O WOR" vWovR`
ALF "LD " htRZ}e
END START end of the program DmrfD28j~F
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bLzuaNa'
Nuva |K-lgrA
<..直接输出..> y
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Hello, world! )l}wjKfgO
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<..或者..> M!l5,ycF
mwCnP8:K
<. e;'T?&t
// 不带换行 T!A}ipqb
? "Hello, world!" v`w?QIB]
L
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// 或者 Lp WEu^j
L#
1vf
// 带换行 ko>_@]Jb
?? 'Hello, world!' SkA'+(
.> XXcf!~uO
.8!0b iS
FxX3Pq8h
OCaml |Z^g\l.j{
let main () = 7uxPkZbb
print_endline "Hello world!";; q$rA-`jw
_q_[<{#
'uzv\[
Pascal z=_{jjs
program Hello; ncr-i!Jjk
begin P/9J!.Cm
writeln('Hello, world!'); 9y*!W
end. DOIWhd5:
-\$cGIL
jFTV\|C
Perl RT"2Us]*
#!/usr/local/bin/perl vaOL6=[#:g
print "Hello, world!\n"; .6F3;bg R7
I?g__u=n~
h}>/Z3*
PHP =hOa
0X=
<?php ] *VF Ws
print("Hello, world!"); N:[;E3?O
?> 5)5bt q)[
UjOhaj "h
7B!Qq/E?g
Pike <&%1pZ/6.
#!/usr/local/bin/pike C(HmLEB^
int main() .l5 "X>
{ 08?MS_
write("Hello, world!\n"); SvP\JQ<c
return 0; f$|v0Xs
} $2C GRhC
s7i.p]
e=UVsYNx
PL/I cloSJmUlQ
Test: procedure options(main); MH;%Y"EI
declare My_String char(20) varying initialize('Hello, world!'); {4aY}=
-Q*
put skip list(My_String); Q]5^Eiq8
end Test; b Ne\{k
gNN"
H#=2
sg"D;b:X
Prolog )$h9Y
goal U"Hquo
write("hello,world!"). K!c@aD:#
nCMa$+
z12But\<
Python X5|/s::u
#!/usr/local/bin/python wy-
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print "Hello, world!" qZsddll
>[fVl8G_0
G0
/vn9&
REXX ~P#zhHw
say "Hello, world!" ou^nzm
n_n|^4w
}R&5qpl
Ruby %s@S|<
W
#!/usr/bin/ruby N[<`6dpE
print "Hello, world!\n" #"8[8jyV
IPR tm!
B4:l*P'
Scheme */^2RZg|W
(display "Hello, world!") u1{ym_
(newline) U%t/wq
8{<[fZyC
.e2A*9,
sed (需要至少一行输入) %;\G@q_p{
sed -ne '1s/.*/Hello, world!/p' :6j :9lYL2
1H4Zgh
U
/3[9{r
Smalltalk >`<2}Me6
Transcript show: 'Hello, world!' Fv);5LD
^_KD&%M6
1:x nD
SNOBOL %FyygT b;S
OUTPUT = "Hello, world!" !ObE{2Enf
END "c/s/$k//
Ryq"\Q>+
ZutB_uW
SQL loUl$X.u
create table MESSAGE (TEXT char(15)); fEw=I7{Y
insert into MESSAGE (TEXT) values ('Hello, world!'); ^'[@M'`~L
select TEXT from MESSAGE; R,+/A8[j
drop table MESSAGE; YZH#5]o8
|^PLZ>
MFH"$t+
Tcl [+l
#!/usr/local/bin/tcl Xs>s|_T
puts "Hello, world!" @\T;PTD-
3Q$'qZw p
hygnC`|
TScript hiMyFvA4
? "Hello, world!" 3K#mF7)a
fcE)V#c"g
j:e^7|.
Turing `N,Vs n"
put "Hello, world!" _+*/~E
Ybt_?Q9#]
?ng14e
UNIX-style shell 9vp%6[
程序中的/bin/sh可改为您使用的shell PNJe&q0*
f>8B'%]
#!/bin/sh !rXcGj(k
echo 'Hello, world!' >WGP{
P YF.#@":&
9y^kb+
GUI ?cO8'4 bq
L8dU(P
Delphi l7'{OB
L
program HelloWorld; lkg"'p{
uses R#/?AD&
Dialogs; e$Bf[F#;-
begin G;Wkm|
ShowMessage('Hello, World!'); 7V=MRf&xQ
end. EDHg'q
F:;!)H*
#H;hRl
Nuva W{A
#]r l
<. }(ma__Ao
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 0F+zG)G"
.> W`N}
>:jM}*dnL
-MrtliepW*
Visual Basic Eq=wdI
MsgBox "Hello, world!" 7 DY WdDX
'或者 /bmXDDYH4
Print "Hello, world!" feI./E
|"R_-U
';b3Mm
#
Visual FoxPro Z cm<Fw
? "Hello, world!" \L ]
pgLtD};S
Har~MO?A
X11 D1X4|Q*SK
用一个程序 0iJ!K;A2%
=naR{pI
xmessage 'Hello, world!' %AG1oWWc>.
j2}
用C++和gtkmm 2 c~^CKgr~R9
H|;*_
#include <iostream> |DE%SVZB
#include <gtkmm/main.h> !/j,hO4Z4
#include <gtkmm/button.h> w;
4jx(
#include <gtkmm/window.h> i iX\it$s
using namespace std; V uG?B{
:K~rvv\L7
class HelloWorld : public Gtk::Window BTTLy^
{ u^Nxvx3l0
public: 8K0X[-hs8
HelloWorld(); q^a|wTC
virtual ~HelloWorld(); D<U
9m3
protected: b mOqeUgB
Gtk::Button m_button; OXHvT/L`
virtual void on_button_clicked(); +VCo$o
}; r{\BbUnf)
M18qa,fK{
HelloWorld::HelloWorld() : m_button("Hello, world!") +Edzjf~Tt
{ /gz:zThf{
set_border_width(10); #?{qlgv<p
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); MA\m[h]
add(m_button); j8GY`f#
m_button.show(); E6Q]A~
} A8pj~I/*-
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HelloWorld::~HelloWorld() {} 1 -ZJT
}zFf0.82
void HelloWorld::on_button_clicked() I^~=,D
{ l|YT[LR7
cout << "Hello, world!" << endl; 0K<x=-cCB
} .,3Zj /
^rv"o:lF
int main (int argc, char *argv[]) z %x7fe
{ &<,SV^wag
Gtk::Main kit(argc, argv); l~bKBz
HelloWorld helloworld; Jyj0Gco
Gtk::Main::run(helloworld); 6HoqEku/Q
} [X,A'Q
AR%hf
/+VIw`E
Java CjZZm^O
import java.awt.*; R?cUy8?'S
import java.awt.event.*; w*50ZS;N
i S%
public class HelloFrame extends Frame OJAx:&