“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。 $fPiR
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将Hello World程序作为第一个学写的程序,现在已经成为一种传统。该程序最早出现在由Brian Kernighan和Dennis Ritchie写的计算机程序设计教程《C语言程序设计》。 !QqVJ a{j
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以下是用不同语言写成的Hello World程序的几个例子: QY\'Uu{
Ada `$JOFLa
with Ada.Text_Io; use Ada.Text_Io; D-m%eP.
procedure Hello is 6@d/k.3p
begin Y'}c$*OkI
Put_Line ("Hello, world!"); :4\_upRE
end Hello; h7xgLe@
h-m0Ro?6
h,/3}
汇编语言 a94nB
ep
l1xfr
x86 CPU,DOS,TASM O
"Aeg|
MODEL SMALL -O@/S9]S)
IDEAL 6hFs{P7
STACK 100H "`pg+t&
OaByfo<S
DATASEG bDegIW/'w
HW DB 'Hello, world!$'
~ihi!u%~}
XNBzA3W
CODESEG GIK.+kn\
MOV AX, @data k?Zcv*[)D+
MOV DS, AX D{+D.4\
MOV DX, OFFSET HW 1P BnGQYM
MOV AH, 09H F=UW[zy/[
INT 21H COH.`Tv{*
MOV AX, 4C00H [eDRghK
INT 21H g)<[-Q1
END eI-FJ/CJ
Xi=4S[.4
?.MlP,/K
x86 CPU,GNU/Linux,NASM (tg+C\
S.
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). Wx8cK=
;Enter this into "hello.asm" then type: LH~
t5
;"nasm -f elf hello.asm" +:J:S"G
;"ld hello.o -o hello" S!
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;"./hello" L_=3`xE
_
^<aj~0v
section .data ;data section declaration a
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msg db 'Hello World!',0AH BK.RYSN
len equ $-msg ;string length "(a}}q 9-
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section .text ;code section declaration Y~OyoNu2
global _start ;entry point (start of execution) L[:M[,?=`
_start: mov edx,len ;string length .4=A:9
mov ecx,msg ;string start d%1Vby
mov ebx,1 ;file handle: stdout `_{,4oi
mov eax,4 ;sys_write oTpoh]|[
int 80h ;kernel system call !U1V('
J =#9eW
mov ebx,0 ;return value ^$8WV&5q>
mov eax,1 ;sys_exit HDhG1B"NL
int 80h ;kernel system call EOGz;:b&
+C4NhA2
iz`ys.Fu
x86 CPU,Windows,MASM32 Lo9
\[4FP
.386 j2 #B l
.model flat,stdcall bWB&8&p
option casemap:none 49B6|!&I
;Include 文件定义 tkdyR1-
include windows.inc 3TKl
include user32.inc EmV ZqW
includelib user32.lib %bhFl,tL
include kernel32.inc >>>MTV f
includelib kernel32.lib ,0n=*o@W
;数据段 sDy~<$l?
.data cdfnM% `>\
szCaption db 'A MessageBox!',0 SsIN@
szText db 'Hello,world!',0 zOL*XZ0c
;代码段 8w3Wy<}y
.code T(*A0
start: j<vU[J+gx~
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK 5=.mg6:
invoke ExitProcess,NULL @N\
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;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> mgBxcmv
end start Q,\S3>1n
9sB LCZ
S^@#%>
AWK [\"<=lb`
BEGIN { print "Hello, world!" } gL wNHS
h)?Km{u%
#pMpGw$
BASIC w8-L2)Q}I
传统版BASIC(例如GWBASIC): RSF@ Oo{
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10 PRINT "Hello, world!" xT8!X5;
20 END *zDL5
9
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或在提示符输入: K`cy97
V8z*mnD
?"Hello, world!":END {?uswbk.
^}hSsE
现代版BASIC(例如Quick BASIC): `)1qq @
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Print "Hello, world!" 3;EBKGg|
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以下的语句在Quick BASIC中同样有效: n,|YJ,v[
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? "Hello,world!" S2
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+
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A:,V)
BCPL A@I3:V
GET "LIBHDR" j!?bE3r~
W o$UV
LET START () BE El3Ayd3
$( i &,1
WRITES ("Hello, world!*N") !9=Y(rb
$) 6E:5w9_=c
f.U.(
7, :l\t
Befunge %A;s3]V
"!dlrow olleH">v ?B:],aztf
, 7Y*Q)DDy
^_@
@XX7ydG5
]+AgXUrbOD
4{ exv
Brainfuck #0/^v*
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< Z-z(SKL
+++++++++++++++.>.+++.------.--------.>+.>. 1?#Wg>7'
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C Z+! 96LR
#include <stdio.h> -<gQ>`(0
x!9bvQT
int main(void) !o/;"'&E
{ Yk#$-"c/a
printf("Hello, world!\n"); ' ui`EL %
return 0; &ETPYf%#
} v1Jg8L=
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C~VyM1inD
C++ 6T A2
#include <iostream> 5lakP?
2dBjc{
int main() )N]%cO(^
{ azpXE
std::cout << "Hello, world!" << std::endl; Hbz,3{o5
return 0; L~L]MC&
} y O?52YO
Zq"wq[GCN
bR|1*<
C++/CLI <fcw:Ae
int main() xT3l>9i
{ kX]p;C
System::Console::WriteLine("Hello, world!"); 7#iT33(3
} 8]0?mV8iOE
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C# (C Sharp) ` oXL
class HelloWorldApp V@1K
{ >oc&hT
public static void Main() WevXQ-eKm
{ %Z6\W;
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System.Console.WriteLine("Hello, world!"); =?-
sazF&
} jTq@@y
} Jl^THoEL
JB\BP$ap
rwepe 5
COBOL FuZLE%gP
IDENTIFICATION DIVISION. ( 0Z3Ksfj1
PROGRAM-ID. HELLO-WORLD. G@]|/kN1y
z`+j]NX]
ENVIRONMENT DIVISION. cdsF<tpy
g4>1> .s
DATA DIVISION. AZjj71UE
[=I==?2`X
PROCEDURE DIVISION. p9$=."5
DISPLAY "Hello, world!". ]%/a'[
STOP RUN. ]$96#}7N
nXF|AeAco
>iB-gj}>X
Common Lisp b'~IFNt*^
(format t "Hello world!~%") yzmwNsu
wPU<jAQyp
<S%kwS
DOS批处理 @IwVR
@echo off f:K`MW
echo "Hello, world!" ;
+E@h=?
#pw=HHq*(
(-rw]=Qu
Eiffel -}2e+DyAy
class HELLO_WORLD }]?U.
]-
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creation #NLLlEE
make jo8;S?+<|?
feature h 66X746
make is Eq?d+s>
local dd%-bI^
io:BASIC_IO p~THliwd
do 6
bnuC
!!io (Eoji7U
io.put_string("%N Hello, world!") g?caE)
end -- make j;b<oQH
end -- class HELLO_WORLD HR83{B21
ePJtdKN:
!56gJJ-r
Erlang R]{AJ"p
-module(hello). 2i~qihx5^
-export([hello_world/0]). \V,;F!*#G
&$</|F)y
hello_world() -> io:fwrite("Hello, World!\n"). 5U/1Z{
f~D>
*<L4-
\dag~b<
Forth <\cH9D`dE
." Hello, world!" CR Z"fnjH
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3
#D{//P|;
Fortran :{v:sK
WRITE(*,10) rpT{0>5
10 FORMAT('Hello, World!') H -,RzL/
STOP k99ANW
END Uwqm?]
a/wkc*}}/
h}U\2$5
HTML xBC:%kG~#
<HTML> 6uijxia
<HEAD> 5Y&s+|
<TITLE> Hello World! </TITLE> z<F.0~)jb
</HEAD> AQ 5CrYb
<BODY> lAwOp
<p>Hello World!</p> d>Z{TFY
</BODY> *?+maK{5+
</HTML> n'#(iW)f
,JcQp=g
1!E+(Iq
HQ9+ nJ4CXSdE
H e1RtoNF ^
;U|^Tsuc`
h?:lO3)TL=
INTERCAL zAxwM-`
PLEASE DO ,1 <- #13 q#RVi8('
DO ,1 SUB #1 <- #238 ZK[S'(6q
DO ,1 SUB #2 <- #112 }hFjl4`xa
DO ,1 SUB #3 <- #112 o?J>mpC
DO ,1 SUB #4 <- #0 ZC1U
DO ,1 SUB #5 <- #64 z.[ Ok
DO ,1 SUB #6 <- #238 m
dC.M$
DO ,1 SUB #7 <- #26 B94mh
DO ,1 SUB #8 <- #248 F=hfbCF5x
DO ,1 SUB #9 <- #168 uj-q@IKe
DO ,1 SUB #10 <- #24 o"x&F
DO ,1 SUB #11 <- #16 [D H@>:"dd
DO ,1 SUB #12 <- #158 {O,Cc$_
DO ,1 SUB #13 <- #52 8P 3EQY-
PLEASE READ OUT ,1 d*lnXzQor
PLEASE GIVE UP URW'*\Xjb
.Wq`qF(;
qu[x=LZ_
Java S`"M;%T
public class Hello U jC$Mi`O
{ BV&}(9z
public static void main(String[] args) r^?%N3
{ >Tld:
System.out.println("Hello, world!"); 0=8.8LnN(
} V\kf6E
} qb
^4G
v5t`?+e
5|-(Ic
JSP G2k r~FG
<% $2^V#GWo
out.print("Hello, world!"); *Df|D/,WE
%> (0qdU;
i)0*J?l=
'PlKCn`(w
MIXAL IjDG
TERM EQU 19 the MIX console device number ~`{HWmah
ORIG 1000 start address mLO{~ruu
START OUT MSG(TERM) output data at address MSG U3^T.i"R
HLT halt execution eN%Ks
MSG ALF "MIXAL" Y:VM5r)
ALF " HELL" I ,AI$A
ALF "O WOR" 3yXF|
yV
ALF "LD " t9PS5O ;
END START end of the program ?#\?&uFJ}
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<..直接输出..> r&\}E+
Hello, world! E<a~
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<..或者..> WZCX&ui