“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。 0Y6q$h>4
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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》。 ,\S pjE
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以下是用不同语言写成的Hello World程序的几个例子: 1~R$$P11[9
Ada W3jXZ>
with Ada.Text_Io; use Ada.Text_Io; 0tW<LR-}E
procedure Hello is Pn+IJ=0Y
begin &'huS?gA9
Put_Line ("Hello, world!"); U50s!Zt45
end Hello; $/, BJ/9
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汇编语言 @QVqpE<|
oTF^<I-C
x86 CPU,DOS,TASM _^6|^PT.
MODEL SMALL p- "Z'$A`
IDEAL SY$J+YBLM
STACK 100H >&<<8Ln
p| \%:#
DATASEG {*?sVAvj
HW DB 'Hello, world!$' @q> ktE_
V\@jC\-5Vt
CODESEG <DeKs?v
MOV AX, @data Ue{vg$5||
MOV DS, AX 2/yXY_L
MOV DX, OFFSET HW ] Wx>)LT
MOV AH, 09H IP30y>\
INT 21H S]e j=6SP
MOV AX, 4C00H " K 8&{=
INT 21H ySwYV
END ^])e[RN7?n
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x86 CPU,GNU/Linux,NASM #cj\~T.,,
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). .1.J5>/n
;Enter this into "hello.asm" then type: 9^ >M>f"
;"nasm -f elf hello.asm" 9TVB<}0G
;"ld hello.o -o hello" SUH mBo"}
;"./hello" o~v_PD[S
lX98"}
section .data ;data section declaration ]a$Wxvgq
msg db 'Hello World!',0AH Dd!Sr8L[
len equ $-msg ;string length b&lN%+%}
f{y]
section .text ;code section declaration /OQK/
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global _start ;entry point (start of execution) :vc[/<
_start: mov edx,len ;string length <i_>
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mov ecx,msg ;string start |'V DI]p&
mov ebx,1 ;file handle: stdout O!+nF]V4f
mov eax,4 ;sys_write L@{!r=%_>
int 80h ;kernel system call lQV|U;~D
_ yfdj[Ot`
mov ebx,0 ;return value uQGz;F x
mov eax,1 ;sys_exit AVXX\n\_
int 80h ;kernel system call AIZW@ Nq.5
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x86 CPU,Windows,MASM32 M"=8O>NZ2
.386 $h G;2v
.model flat,stdcall EKZ$Q4YE
option casemap:none s<A*[
;Include 文件定义 Q~fwWp-J
include windows.inc DE*MdfP0
include user32.inc *0%4l_i
includelib user32.lib uy/y wm/?=
include kernel32.inc .A3DFm3 t
includelib kernel32.lib -"W )|oC_
;数据段 :8p&#M
.data BRQ"A,
szCaption db 'A MessageBox!',0 n?'d|h
szText db 'Hello,world!',0 &EAk
z
;代码段 <,jAk4
.code <Ctyht0c.
start: ,f}h}
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK 3g4e']t
invoke ExitProcess,NULL `1nRcY
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 9<xTu>7J
end start BG'6;64kx6
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AWK `kv1@aQPL
BEGIN { print "Hello, world!" } eYJ{LPo
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BASIC ZhH+D`9
传统版BASIC(例如GWBASIC): hVMYB_<~
X?tj$
10 PRINT "Hello, world!" o_iEkn
20 END +"'F Be
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或在提示符输入: tf4*R_6;1$
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?"Hello, world!":END LO"_NeuL
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现代版BASIC(例如Quick BASIC): G49Ng|qn
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Print "Hello, world!" 31WZJm^
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以下的语句在Quick BASIC中同样有效: {tPnj_|n<
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? "Hello,world!" wD`[5~C{
M]c7D`%s
YzVN2f!n
BCPL :`D'jF^S
GET "LIBHDR" QQ@9_[N
5v"Y\k+1
LET START () BE _-n Y2)
$( x_yF|]aI!
WRITES ("Hello, world!*N") vCj4;P g
$) Hw Z^D=A
brntE:
~%`EeJwT
Befunge |VK:2p^ u
"!dlrow olleH">v |V lMmaz
, 8=:A/47=J
^_@ 'f 3HKn<L
\I;cZ>{u"}
h-7A9:
Brainfuck 't7Z] G
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 9qEOgJ
+++++++++++++++.>.+++.------.--------.>+.>. [6H}/_nD
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C h0|[etaf
#include <stdio.h> qmEoqU
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int main(void) 0{Bf9cH
{ _74UdD{^o
printf("Hello, world!\n"); m=H_?W;
return 0; >)LAjwhBp
} u*hH}
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zhX;6= X2
C++ /9 pbnzn
#include <iostream> X<Z(]`i
_
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int main() V~85oUc\-
{ GA\2i0ow
std::cout << "Hello, world!" << std::endl; Rb#/qkk/
return 0; H<,bq*@
} Uj,g]e8e
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EY~7oNfc`R
C++/CLI >PIPp7C
int main() 8
}-7{
{ ABcBEv3
System::Console::WriteLine("Hello, world!"); w,Q)@]_
} k{a)gFH
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c}%es=@
Ah (iE
C# (C Sharp) zj{(p Z1
class HelloWorldApp I0iY+@^5
{ _lP4}9p
public static void Main() ;}D-:J-z_
{ S;8. yj-
System.Console.WriteLine("Hello, world!"); 6}ftBmv
} iT.|vr1HG
}
';6X!KY+]
q[P~L`h S
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COBOL +8f>^*:u
IDENTIFICATION DIVISION. 2 5Q+1
PROGRAM-ID. HELLO-WORLD. +`| mJa
=:gjz4}_8
ENVIRONMENT DIVISION. Ir27ZP
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DATA DIVISION. g2=}G <*0
\-OC|\{32
PROCEDURE DIVISION. 0R|K0XH#$
DISPLAY "Hello, world!". Z(HZB
STOP RUN. $T),DUYO
p.C1 nh
#EG?9T
Common Lisp 1i3V!!r
(format t "Hello world!~%") &hI>L
EjSD4
yp p 4L|R
DOS批处理
4{Udz!
@echo off =&2$/YX0D
echo "Hello, world!" ;g9% &
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n+?-
Eiffel c|lU(Tf
class HELLO_WORLD #W|!fILL
IBET'!j4"
creation WYLX?x
make >)^NJ2Fd
feature fL Nag~
make is o8{<qn|
local W`x)=y]Z
io:BASIC_IO skR,-:"8
do RM,'o[%
!!io +_~,86
io.put_string("%N Hello, world!") OR;&TbWF(R
end -- make g\&2s,
end -- class HELLO_WORLD =Z`0>R`
>A($8=+#x
[D[D`gpjA
Erlang G3dhM#!
-module(hello). f=m/
-mAA
-export([hello_world/0]). o?wt$j-
l3p3tT3+
hello_world() -> io:fwrite("Hello, World!\n"). &SmXI5>Bo0
U:n*<l-k}
EkZjO Ci
Forth wAh#
." Hello, world!" CR zQc"bcif5(
S?4KC^Y5
x:
~d@
Fortran oy5+}`
WRITE(*,10) L/x(RCD
10 FORMAT('Hello, World!') L\L"mc|O
STOP 7|Dn+=
END lw[<STpD;
<d"Gg/@a
f`|G]da-3o
HTML fY_%33_I$
<HTML> jDTUXwx7V
<HEAD> hnzNP\$U]
<TITLE> Hello World! </TITLE> "PzP;Br
</HEAD> DA=1KaJ .
<BODY> v`B4(P1Z
<p>Hello World!</p> jdM=SBy7q
</BODY> *1bzg/T<
</HTML> "IwM:v
)0-o%- e
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\`;
HQ9+ cPuHLwwYf
H e$wt&^W
Uh}X<d/V
Spgg+;9
INTERCAL tjxvN 4l
PLEASE DO ,1 <- #13 C:GvP>
DO ,1 SUB #1 <- #238 Qq3fZ=
DO ,1 SUB #2 <- #112 `6F+Rrn
DO ,1 SUB #3 <- #112 G{o+R]Us
DO ,1 SUB #4 <- #0 z+/LS5$
DO ,1 SUB #5 <- #64 }OrYpZob
DO ,1 SUB #6 <- #238 (Es{l a G
DO ,1 SUB #7 <- #26 Rla4L`X;
DO ,1 SUB #8 <- #248 ETp'oh}?
DO ,1 SUB #9 <- #168 M<(u A'
DO ,1 SUB #10 <- #24 *jF#^=
DO ,1 SUB #11 <- #16
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DO ,1 SUB #12 <- #158 !O{z 3W
DO ,1 SUB #13 <- #52 h|p[OecG
PLEASE READ OUT ,1 R1'`F{56
PLEASE GIVE UP ?N>pZR
:;4SQN{2
O
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Java A5XR3$5P
public class Hello r1Z<:}ZwK
{ r)b<{u=]
public static void main(String[] args) *]x_,:R6Ow
{ a)S7}0|R
System.out.println("Hello, world!"); O<GF>
} O
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} Km*<Kfcz
lIh[|]
7Fl-(Nv`
JSP "H1:0p
<% Ei~f`{i
out.print("Hello, world!"); QlD6i-a
%> ~lw<799F6
ow.j+<M
oT3Y!Y3=<
MIXAL ` X}85
TERM EQU 19 the MIX console device number / Z!i;@Wf
ORIG 1000 start address |+NuYz?
START OUT MSG(TERM) output data at address MSG K"l0w**Og#
HLT halt execution @\}YAa>>"I
MSG ALF "MIXAL" 3hS6jS
ALF " HELL" l h/&__
ALF "O WOR" M<[?g5=#
ALF "LD " irMd
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END START end of the program %MJ;Q?KB
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mP-2s;q
Nuva Y {c5
<..直接输出..> !Iq{ 5:
Hello, world! &1GUi{I
bGv4.:)
<..或者..> p4>,Fwy2
CLN+I'uX0
<. %S#WPD'Y
// 不带换行 `|<+ ?
? "Hello, world!" (~()RkT
NHiq^ojk
// 或者 m mw-a0
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{me|
// 带换行 }.{}A(^YR
?? 'Hello, world!' SxMj,u%X/
.> o6|-=FcvC
- DL"-%X.
HXks_ix )
OCaml Q2\
let main () = [rdsv
print_endline "Hello world!";; G;]:$J
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Vz w PBQ -
Pascal @2' %o<lF
program Hello;
(ZPXdr
begin jJ++h1
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writeln('Hello, world!'); Z$;"8XUM
end.
{L0;{
^?"^Pmw
;V.vfar
Perl _P5P(^/
#!/usr/local/bin/perl 0"4@;e_)>
print "Hello, world!\n"; 7Dt"]o"+
;NsO
vWY(% Q,
PHP r4eUZ .8R
<?php RP`
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print("Hello, world!"); ?_ RYqolz
?> X+ f9q0
rsF:4G"%
JBcY!dy-d
Pike \6sQJq
#!/usr/local/bin/pike slvq9,
int main() 'b[0ci:
{ #*,sa
write("Hello, world!\n"); ^7u#30,}3~
return 0; (5`T+pAsV
} N z~"vi(t
AcC8)xRpk4
O&$0&dhc
PL/I Iql5T#K+
Test: procedure options(main); 0kLEBoOh
declare My_String char(20) varying initialize('Hello, world!'); vA-PR&
put skip list(My_String); 3] 76fF\^[
end Test; 3"rkko?A
Lk.h.ST
7BFN|S_l
Prolog agsISu(
goal cZ<
\
write("hello,world!"). B\_[R'Pf&
FH\CK
cY{Nos
Python +1@AGJU3
#!/usr/local/bin/python =A n`D
print "Hello, world!" NWKi
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:ba/W&-d
eXzXd*$S
REXX '_o@VO
say "Hello, world!" *not.2+
V}9;eJRvw
rn" pKUd
Ruby \P?A7vuhLs
#!/usr/bin/ruby s4,(26y
print "Hello, world!\n" 1K[(ou'rl
25em[Q:
}lfn0 %(@
Scheme %v4
[{ =fE
(display "Hello, world!") \ 4gXY$`@
(newline) t[2i$%NVM
zj20;5o>U&
dDlG!F_=
sed (需要至少一行输入) 6P+DnS[]
sed -ne '1s/.*/Hello, world!/p' XO
wiHW{
S< x:t(
pFIecca w
Smalltalk 1xTTJyoq
Transcript show: 'Hello, world!' YIOR$
gX*K&*q
gaeOgP.0
SNOBOL J}@GKNm
OUTPUT = "Hello, world!" GZ3/S|SMP
END CW0UMPE5
:s*>W$Wp4
_4R,Ej}
SQL {L9yhYw
create table MESSAGE (TEXT char(15)); j>!sN`dBj
insert into MESSAGE (TEXT) values ('Hello, world!'); Kbas-</Si
select TEXT from MESSAGE; "DjU:*'
drop table MESSAGE; ?}sOG?{
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j'Wp
Tcl SE!L :
#!/usr/local/bin/tcl 'h}7YP, w
puts "Hello, world!" d8:C3R
t _\MAK
{A3m+_8
TScript I,j3bC
? "Hello, world!" 2Xgx*'t\
NG9vml
d@g2k> >
Turing #F4X}
put "Hello, world!" 0&$xX!]
Gvn : c/m;
=|0/Ynfe
UNIX-style shell Taasi`
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程序中的/bin/sh可改为您使用的shell Mi74Xl i
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#!/bin/sh O71BM@2<
echo 'Hello, world!' s.y}U5Ty?P
hW%p#g;
FpzP#;
GUI `Bu9Nq
D5`(}
Delphi *V|zx#RN
program HelloWorld; p7UTqKi
uses @L;C_GEa
Dialogs; XS|mKuMcC
begin Jpx'W
ShowMessage('Hello, World!'); f)^t')
end. "Ot{^_e
MPvWCPB
/{we;Ut=g
Nuva Z| L2oce
<. FpdHnu i1
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) }vD;DSz:
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iQ{z6Qa
Visual Basic C BlXC7_Mi
MsgBox "Hello, world!" U Um|@
'或者 XU-*[\K
Print "Hello, world!" {!t=n
8IJ-]wHIb
DMMLzS0A
Visual FoxPro _8S4Q!
? "Hello, world!" d*%Mv[X:<