“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。 4)9Pgp:
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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》。 F3nPQw{;
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以下是用不同语言写成的Hello World程序的几个例子: ?' $}k
Ada 08$l=
with Ada.Text_Io; use Ada.Text_Io; "-Uqv@
procedure Hello is @ 3b-
begin cMfnc.P\K
Put_Line ("Hello, world!"); bR=TGL&
end Hello; ?YM0VB,y
g:>dF#
n* z;%'0
汇编语言 xQ=L2pX
OQ<NB7'n0A
x86 CPU,DOS,TASM <$%Y#I'zX
MODEL SMALL VKr
oikz@]
IDEAL i,/Q.XL
STACK 100H 8yGo\\=T
1k)`C<l
DATASEG O.?q8T)n82
HW DB 'Hello, world!$' (k %0|%eR
>kV=h?]Y
CODESEG H"rIOoxf
MOV AX, @data A:?w1"7gT
MOV DS, AX ^p~ 3H
MOV DX, OFFSET HW *%dWNvN4X
MOV AH, 09H }& 01=nY
INT 21H n(\VP!u5r
MOV AX, 4C00H Wp=:|J
INT 21H 0urM@/j+
END Eqh&<]q
+B
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68!=`49r>
x86 CPU,GNU/Linux,NASM Z15b'^)?9
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). &&n-$WEl
;Enter this into "hello.asm" then type: M5B?`mTl
;"nasm -f elf hello.asm" i^/D_L.
;"ld hello.o -o hello" zQx7qx
;"./hello" }}v28"\TA
g@S?5S.Av
section .data ;data section declaration !7uFH PK-
msg db 'Hello World!',0AH h{Y#. j~aS
len equ $-msg ;string length I\VC2U
ACH!Gw~
section .text ;code section declaration y/ah<Y0(
global _start ;entry point (start of execution) +C(/.X
Kz%
_start: mov edx,len ;string length E2|c;{c
mov ecx,msg ;string start W.<I:q`eO
mov ebx,1 ;file handle: stdout J]Qbg7|
mov eax,4 ;sys_write 5?MKx!%
int 80h ;kernel system call !%YV0O0
S]DYEL$
mov ebx,0 ;return value "cX*GTNi8
mov eax,1 ;sys_exit V,
e
int 80h ;kernel system call 5,?Au
j=w`%nh4"f
s KOy6v
x86 CPU,Windows,MASM32 QLyBP!X-
.386 PciiDh~/
.model flat,stdcall ON$-g_s>)
option casemap:none Z65]|
;Include 文件定义 O0>^?dsL
include windows.inc _ 6'HBE
include user32.inc 2a:JtJLl
includelib user32.lib CFx$r_!~
include kernel32.inc :WdiH)Zv
includelib kernel32.lib W_G'wU3R
;数据段 lmr:PX
.data ESv&x6H
szCaption db 'A MessageBox!',0 wz5*?[4
szText db 'Hello,world!',0 6Vc&g
;代码段 8Vqh1<
.code ?1MaA
start: v]BMET[w
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK 4O3-PU>N
invoke ExitProcess,NULL g R)
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;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 6\?<:Qto
end start Kg;1%J>ee
xn4-^2
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AWK u:D,\`;)
BEGIN { print "Hello, world!" } Zae$M0)
k
M' :.QT
E:ocx2dp
BASIC _8"%nV
传统版BASIC(例如GWBASIC): WT>2eMK[
3.s.&^
10 PRINT "Hello, world!" ]
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20 END [D%5Fh\0
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或在提示符输入: yPza
IPT\d^|f
?"Hello, world!":END .`K<Iug1
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现代版BASIC(例如Quick BASIC): o Kfm=TbY
[Dq!t1
Print "Hello, world!" k),.
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以下的语句在Quick BASIC中同样有效: myeez+@ m
T#e ;$\
? "Hello,world!" G\ht)7SGgf
~1v5H]T{
K=82fF(-
BCPL Sq,x57-
GET "LIBHDR" Cl5l+I\1
&I$MV5)u
LET START () BE Q4,!N(>D
$( 3ud_d>
WRITES ("Hello, world!*N") 3@/\j^U
$) >FabmIcC
K`?",G?_
/G h?z
Befunge /
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"!dlrow olleH">v XNJPf) T
, 3B5GsI
^_@ G F-\WD
P[E5e+A)
aqk0+
Brainfuck ub/9T-#l
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< =
j,Hxq
+++++++++++++++.>.+++.------.--------.>+.>. LJAqk2k
D-tm'APq
RrGFGn{
C MIJ^n(-G
#include <stdio.h> &6`h%;a/&
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int main(void) EBX+fzjQo
{ =k\V~8XZ
printf("Hello, world!\n"); fGtUr_D
return 0; ZYy?JDAO
} |aovZ/b4
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yIL6Sb
C++ z_^Vgb]
#include <iostream> l$~3_3+
.A. VOf_
int main() As;@T$G
{ 5QR=$?K
std::cout << "Hello, world!" << std::endl; U2u\Q1
return 0; Gb\Nqx(
} 8AK=FX&@&
0Y81B;/F
#ONad0T;
C++/CLI .W#-Cl&n8
int main() %&RF;qa2xu
{ <B?@,S>
System::Console::WriteLine("Hello, world!"); ,X05&'@Z
} a$*)d($
oXef<- :
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C# (C Sharp) s?8vs%(l
class HelloWorldApp 1yS[;
{ W'BB FG
public static void Main() ]b"Oy}ARW
{ bZE;}d
System.Console.WriteLine("Hello, world!"); vjcG
F'-
} NT6OGBl&
} 1gwnG&
S~9K'\vO
H<|ilL'fX
COBOL kf8-#Q/B
IDENTIFICATION DIVISION.
\~]HfDu
PROGRAM-ID. HELLO-WORLD. R; wq
*oC],4y~D
ENVIRONMENT DIVISION. pu:Ie#xTDf
jo8hVWJ7V*
DATA DIVISION. 0@K?'6
'Olp2g8=
PROCEDURE DIVISION. zq=X;}qYj
DISPLAY "Hello, world!". mUmU_L u8
STOP RUN. 3 %ppvvQ
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i|]Kw9
Common Lisp !\
IgTt,
(format t "Hello world!~%") QUPZe~G>L
(aAv7kB&
{{G`0i2KV
DOS批处理 Uq:WW1=kh
@echo off G% |$3
echo "Hello, world!" O T*C7=
q`HuVilNH
_.9):i2<SF
Eiffel x}Y
class HELLO_WORLD -VqZw&"
TSGJ2u5ie%
creation g[Z$\A?ZbZ
make #Sxk[[KwH*
feature cjf 8N:4N0
make is .l| [e
local 66P'87G
io:BASIC_IO r\OunGUP
do WIe7>wkC
!!io e;+6U"Jx*
io.put_string("%N Hello, world!") n9
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end -- make x)Y?kVw21"
end -- class HELLO_WORLD Wchu-]
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LH=gNFgzt
Erlang X"4 :#s
-module(hello). B-oQ 9[~
-export([hello_world/0]). rd*`8B
5`TbM
hello_world() -> io:fwrite("Hello, World!\n"). RZ(*%b<C
\3M<_73
,buSU~c_Q
Forth 1ZL91'U
." Hello, world!" CR ~$I9%z7@
7$;#-l
y$
L@!r/s
Fortran k<.$7Pl3U
WRITE(*,10) {X85
10 FORMAT('Hello, World!') tx,_0[hZi
STOP g*]hmkYe9
END {|KFgQ'\
V`c"q.8
-8HK_eQn
HTML Dl
a }-A:
<HTML> #\|Ac*>
<HEAD> 6x'F0{U
<TITLE> Hello World! </TITLE> <Km
^>9
</HEAD> BBV"nm_(/
<BODY> Ic 5TtN~/>
<p>Hello World!</p> !2.(iuE
</BODY> \kDQ[4mGq
</HTML> y*F !k{P
prHM}n{0
rr@h9bak;g
HQ9+ @U8}K#
H I7@|{L1|FB
jR1o<]?
jW,b"[
INTERCAL 9HsiAi*
PLEASE DO ,1 <- #13 YFJw<5&
DO ,1 SUB #1 <- #238 oZD+AF$R
DO ,1 SUB #2 <- #112 hTEwp.
DO ,1 SUB #3 <- #112 4YV0v,z
DO ,1 SUB #4 <- #0 >>cb0fH5
DO ,1 SUB #5 <- #64
#r=Jc8J_
DO ,1 SUB #6 <- #238 i\zVP.c])*
DO ,1 SUB #7 <- #26 D*%? 0
DO ,1 SUB #8 <- #248 Q9yIQ{>H[
DO ,1 SUB #9 <- #168 Ulf'gD4e
DO ,1 SUB #10 <- #24 `D%U5Jb
DO ,1 SUB #11 <- #16 3X;k c>
DO ,1 SUB #12 <- #158 !^yH]v
DO ,1 SUB #13 <- #52 <y
S|\Z|
PLEASE READ OUT ,1 wtl3Ex,DO
PLEASE GIVE UP =JkPE2mU
%O69A$Q[m
8l1s]Kqr
Java uPT2ga ]
public class Hello :*=fGwIWS
{ `!udU,|N
public static void main(String[] args) Silh[8
{ NihUCj"
System.out.println("Hello, world!"); {\WRW}iO
} 2;wpD2
} >1}@Q(n/}{
o2 ;
9-W3}4'e
JSP R_4eME2LB
<% O
.ESI
out.print("Hello, world!"); W? F Q
%> [u $X.=(
Y&XO:jB
0h=}BCb+i
MIXAL WYUel4Z
TERM EQU 19 the MIX console device number t] CA!i`
ORIG 1000 start address [HEljEv
START OUT MSG(TERM) output data at address MSG `SH14A*
HLT halt execution &o;d
MSG ALF "MIXAL" ? K ,d
ALF " HELL" f:K>o.
ALF "O WOR"
mo?*nO|-
ALF "LD " ?u?Nhf
%b
END START end of the program 3'7] jj
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QZm7
Q4
Nuva I}jem
<..直接输出..> 68UfuC
Hello, world! B? aMX,1
Op'&c0l
<..或者..> g8SVuG<DI\
EY`]""~8v
<. $ {h1(ec8
// 不带换行 M
ZAz= )-
? "Hello, world!" J2Mq1*Vp q
{E;oirv&
// 或者 T,oZaJ<
*mJ\Tzc)
// 带换行 64L;np>
?? 'Hello, world!' 7>E>`Nc6
.> GGs7]mhA
@<jm+f"MP
j"A<