“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。 (yeWArQ
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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》。 OHnsfXO_V
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以下是用不同语言写成的Hello World程序的几个例子: 7j(gW
Ada 8wEJyAu2
with Ada.Text_Io; use Ada.Text_Io; PCa0I^d
procedure Hello is bweAmSs
begin 5d# 73)x$
Put_Line ("Hello, world!"); $:UD #eh0?
end Hello; rd24R-6
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汇编语言 y@AUSh;
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x86 CPU,DOS,TASM H;DjM;be
MODEL SMALL 7h:EU7
IDEAL ^gY'^2bzxu
STACK 100H Jp_ :.4
7<K=G2_:
DATASEG KFaYn
HW DB 'Hello, world!$' |@f\[v9`
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CODESEG 1CJAFi>%D
MOV AX, @data mgodvX
MOV DS, AX :o~]d
MOV DX, OFFSET HW SP>&+5AydX
MOV AH, 09H znIS2{p/`
INT 21H )wdd"*hv
MOV AX, 4C00H 5)0'$Xxqa0
INT 21H ~LP5hL
END %F}d'TPx
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x86 CPU,GNU/Linux,NASM VCIV*5
P
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). NQcg}y
;Enter this into "hello.asm" then type: C0>L<*C
;"nasm -f elf hello.asm" 23a:q{R
;"ld hello.o -o hello" A ^zd:h-
;"./hello" Mp[2A uf
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section .data ;data section declaration m}>Q#IVZ
msg db 'Hello World!',0AH A>RK3{7
len equ $-msg ;string length }gE^HH'
6!;D],,"#.
section .text ;code section declaration k\g:uIsv$
global _start ;entry point (start of execution) vWL|vR
_start: mov edx,len ;string length QR<<O
mov ecx,msg ;string start `}FZ;q3DP
mov ebx,1 ;file handle: stdout /*GCuc|
mov eax,4 ;sys_write Y'#uZA3KA
int 80h ;kernel system call :oiHf:
%&s4YD/{
mov ebx,0 ;return value O3#eQs
mov eax,1 ;sys_exit e5'U[bQm
int 80h ;kernel system call (rq(y$N
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j6L (U~%
x86 CPU,Windows,MASM32 O.8k [Ht
.386 9g.5:
.model flat,stdcall H!l9a
option casemap:none wLvM<p7OX
;Include 文件定义 K<5 0>uG
include windows.inc r8[)C cv
include user32.inc XK)0Mt\
includelib user32.lib lB8gD
include kernel32.inc ~]'yUd1gSZ
includelib kernel32.lib gg Nvm
;数据段
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.data 1(e64w@
szCaption db 'A MessageBox!',0 .SNg2.
szText db 'Hello,world!',0 \Xr*1DI<
;代码段 jx
?"`;a
.code IlB*JJnl
start: vkeZ!klYB
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK o1-_BlZ
invoke ExitProcess,NULL #qK5i1<
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> \: B))y?}d
end start SDs#w
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J=HN~B1
AWK 0F
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BEGIN { print "Hello, world!" } >&^jKfY
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Nu'ox. V
BASIC p\.IP2+c
传统版BASIC(例如GWBASIC): Nx
E=^
v
QUh`kt(E
10 PRINT "Hello, world!" .8;0O
M
20 END s%RG_"l
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或在提示符输入: 3.KNAObO
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?"Hello, world!":END ;<nJBZB9u
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现代版BASIC(例如Quick BASIC): Gi*_ &
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Print "Hello, world!" K6|R ;r5e{
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以下的语句在Quick BASIC中同样有效: JU)k+:\a
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? "Hello,world!" r d)W+W9
u1\r:q
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BCPL wxT(ktE
GET "LIBHDR" QV4FA&f&
4=N(@mS
LET START () BE 0sB[]E|7[s
$( a|4Q6Ycu
WRITES ("Hello, world!*N") 'rA(+-.M;
$) Iyb_5 UmpF
`;j$]
% iZM9Q&NC
Befunge aK
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"!dlrow olleH">v Eh$1piJG
, cH+ ~|3
^_@ hML-zZ
0Q)YZ2
cS
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Brainfuck Fh|{ib
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< yhs:.h
+++++++++++++++.>.+++.------.--------.>+.>. OB*V4Yv
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$dA]GWW5A
C ]b:>7_la
#include <stdio.h> 9Hd_sNUu\
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int main(void) E=`/}2
{ c5:X$k\
printf("Hello, world!\n"); 9PMIF9"
return 0; |--Jd$ dj
} qwO@>wQ}~
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C++ P%N)]b<c*
#include <iostream> qB&Je$_uh
dP`B9>r
int main() B&6lG!K'?
{ |68k9rq
std::cout << "Hello, world!" << std::endl; i4nFjz
return 0; [AA}P/iW
} VKf&}u/
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C++/CLI o$rF-?
int main() DJAKF
{ TQ5kM
System::Console::WriteLine("Hello, world!"); ),|z4~
} \Pcn D$L
dC|6z/
,Q0H)//~
C# (C Sharp) M|fV7g
class HelloWorldApp V Ew| N)
{ 4I&Mdt<^D
public static void Main() u8M_2r
{ DuIXv7"[
System.Console.WriteLine("Hello, world!"); WjCxTBI
} A7|L|+ ?
} "F6gV;{Bt
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COBOL 76KNgV)3
IDENTIFICATION DIVISION. J_.cC
PROGRAM-ID. HELLO-WORLD. b&dv("e
4
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ENVIRONMENT DIVISION. d ez4g
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DATA DIVISION. "/mtuU3rt
O?cU6u;W
PROCEDURE DIVISION. S>S7\b'
DISPLAY "Hello, world!". =O-irGms*
STOP RUN. (z?j{J
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yW
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Common Lisp F=e-jKogK
(format t "Hello world!~%")
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DOS批处理 /,UnT(/k(
@echo off P.QF9%
echo "Hello, world!" -V;BkE76
Hmt2~>FI[
MU(I#Prpe
Eiffel Ip:54
class HELLO_WORLD wy0?*)~
c?u*,d) G
creation RS
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make M.r7^9 P
feature Kf*Dy:e
make is ^$sqU
local .Y"F3
R
io:BASIC_IO 32j}ep.*
do rNTLP
m
!!io C4P<GtR9
io.put_string("%N Hello, world!") 0bT[05.
end -- make KIag(!&
end -- class HELLO_WORLD o. ;Vrc
^_<|~
i7e6l C
Erlang Y#tur`N
-module(hello). y&-QLX L
-export([hello_world/0]). TEMxjowr
e}S+1G6r)
hello_world() -> io:fwrite("Hello, World!\n"). f'H|K+bO
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d7
H *F
Forth TlRc8r|
." Hello, world!" CR ^|]Dg &N.
~x#TfeU]
x3Y)l1gh
Fortran b*M?\ aA
WRITE(*,10) tiHR&v
10 FORMAT('Hello, World!') q$mc{F($D
STOP ]z/R?SM
END "\KBF
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HTML j7k}!j_O{
<HTML> +a1iZ bh
<HEAD> >3Q|k{97
<TITLE> Hello World! </TITLE> y!.jpF'uI
</HEAD> RZ xwr
<BODY> F_jHi0A
<p>Hello World!</p>
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</BODY> $2L6:&.P,
</HTML> 6CIzT.
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7-!n-
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H Zo yO[#
VL$
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$
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INTERCAL hW<v5!,
PLEASE DO ,1 <- #13 G7Sw\wW
DO ,1 SUB #1 <- #238 "cPg_-n
DO ,1 SUB #2 <- #112 z+yIP ?s}(
DO ,1 SUB #3 <- #112 u0 tlf
DO ,1 SUB #4 <- #0 gJ'pwSA
DO ,1 SUB #5 <- #64 eY5mwJ0K
DO ,1 SUB #6 <- #238 %dFJ'[jDL
DO ,1 SUB #7 <- #26 Qop,~yK
DO ,1 SUB #8 <- #248 ABX%oZ7[|o
DO ,1 SUB #9 <- #168 }|Mwv
$`
DO ,1 SUB #10 <- #24 *_o(~5w-K
DO ,1 SUB #11 <- #16 kzDN(_<1
DO ,1 SUB #12 <- #158 'in%Gii
DO ,1 SUB #13 <- #52 v#d\YV{I
PLEASE READ OUT ,1 %gh#gH
PLEASE GIVE UP O'mcN*
hEQyaDD;
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Java .Dr!\.hL
public class Hello c{BAQZVc
{ wG3b{0
public static void main(String[] args) f7lj,GAZ
{ yXJ25Axb
System.out.println("Hello, world!"); DfD
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} .4)oZ
} !S#3mT-
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.qO4ceW2-~
JSP {_-kwg{"(
<% \}s/<Q
out.print("Hello, world!"); !i^"3!.l,]
%> 2Lf,~EV
Cp6S2v I
T8x)i\<
MIXAL 3I_^F&T
TERM EQU 19 the MIX console device number pg4W?N`
ORIG 1000 start address %
/VCjuV
START OUT MSG(TERM) output data at address MSG cMXv
HLT halt execution qTr P@F4`g
MSG ALF "MIXAL" Q=`yPK>{$N
ALF " HELL" K)7T]z`
ALF "O WOR" l<f9$l^U
ALF "LD " 8(L$a1#5W
END START end of the program /I=|;FGq
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o$sD9xx
Nuva %o0b~R
<..直接输出..> P 0,]`w
Hello, world! Fo.Y6/}
%8FfP5#
<..或者..> (Xh<F
AafS6]y
<. o utJ/~9;
// 不带换行 ?,>3uD#
? "Hello, world!" F@i>l{C
7__[=)(b2X
// 或者 YsVmU
p%I'd^}.!
// 带换行 i6'=]f'{
?? 'Hello, world!' GfE>?mG
.> d:(Ex^^
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a)QT#.
OCaml ga5Q
let main () = V`^*Z}d9
print_endline "Hello world!";; ("2X8(3z
@N4_){s*
ws'e
Pascal .Vbd-jr'M
program Hello; tOiz tYu
begin .SD-6GVD
writeln('Hello, world!'); .\R9tt}
end. h0tiWHw
P R%)3
)@NFV*@I
Perl MJXnAIG?2
#!/usr/local/bin/perl 6]brL.eGj
print "Hello, world!\n"; MXaFqK<Y
vB8$Qx\J
,|A^ <R`
PHP SGWb*grt
<?php \,Y
.5 ?
print("Hello, world!");
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?> msBoInhI
MzIDeZ
EN!C5/M{&
Pike 41X`.
#!/usr/local/bin/pike qVC+q8
int main() E>bkEm
{ 8RMM97@1Q
write("Hello, world!\n"); r3'J{-kl
return 0; v`A)GnNiN
} {r_HcI(h
0;bdwIP3
ieZ$@3#&z
PL/I u#76w74
Test: procedure options(main); _J1\c~ke"
declare My_String char(20) varying initialize('Hello, world!'); zm&[K53
put skip list(My_String); 2{79,Js0
end Test; fDy*dp4z
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46>rvy.r
Prolog A8'RM F1
goal ^Arv6kD,
write("hello,world!"). `MI\/oM@
ET}Z>vU}+
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Python )U %`7(bN
#!/usr/local/bin/python wL0[Slf}
print "Hello, world!" {`!6w>w0
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;'S,JGpvT
REXX /~NX<Ye&
say "Hello, world!" A6z,6v6
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&
4Zbn8GpC
Ruby {=GmXd%D
#!/usr/bin/ruby X
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print "Hello, world!\n" D6bYg `
R-Edht|{
syl7i>P
Scheme W.j^L;
(display "Hello, world!") w-K A~
(newline) *tqD:hiF
X:i?gRy"
cW%)C.M
sed (需要至少一行输入) [G}dPXD
sed -ne '1s/.*/Hello, world!/p' <m-(B"FX
7Eyi~jes
2IB{FO/
Smalltalk )>ZT{eF
Transcript show: 'Hello, world!' n41#
d5'Q1"{
syX?O'xJ
SNOBOL Ae>+Fcv
OUTPUT = "Hello, world!" JvAXLT
END spa:5]B
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ED` 1)1<
SQL eK7A8\;e
create table MESSAGE (TEXT char(15)); y0xBNhev
insert into MESSAGE (TEXT) values ('Hello, world!'); ~0PzRS^o
select TEXT from MESSAGE; >$m<R&
drop table MESSAGE; _Raf7 W
hz:7W8
KrGl}|
Tcl +xYu@r%R
#!/usr/local/bin/tcl YS|Dw'%g /
puts "Hello, world!" $Tbsre\MJ
m*y&z'e\
S`s]zdUTP
TScript [Mu9"kF
? "Hello, world!" 'h$1
z$X5
9lq5\ tL-
.YF1H<gwa
Turing !ZTghX}D
put "Hello, world!" PNm@mC_fh
"1a;);S=*)
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UNIX-style shell -64lf-<
程序中的/bin/sh可改为您使用的shell `3\aX|4@
2K:A4)jZ
#!/bin/sh AS;Sz/YP
echo 'Hello, world!' N@|<3R!N*e
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6{)pF
GUI 'l'3&.{Yfk
:ts3_-cr
Delphi A+l(ew5Lw$
program HelloWorld; T,!EL+o4
uses FJ0I&FyWs
Dialogs; Jr5S8c|"
begin EDnNS
ShowMessage('Hello, World!'); z6`0Uv~
end. -E}X`?WhD
V?EX`2S
mu\1hKq;B
Nuva UwUHB~<oE
<. Zn9u&!T&
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) gKb,Vrt
.> h7Uj "qH
T<*)Cdid
94B%_
Visual Basic i:YX_+n
MsgBox "Hello, world!" yEWm.;&3=
'或者 }#7l-@{<
Print "Hello, world!" ^SpQtW118
1]/;qNEv
iZNS? ^U
Visual FoxPro Mxl;Im]!`.
? "Hello, world!" :)lS9<Y}
]T)N{"&N/
HO<|EH~lu
X11 C_J@:HlJ
用一个程序 `}ak]Z_
;a?<7LIx
xmessage 'Hello, world!' uB)q1QQsqp
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