“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。 NNa1EXZ[
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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》。 }~o
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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`nJVc
Ada nSY-?&l6P
with Ada.Text_Io; use Ada.Text_Io; ~E=\t9r
procedure Hello is kA7(CqUW
begin ]=D5p_A(
Put_Line ("Hello, world!"); {6x PdUhw
end Hello; >Jm"2U}lZW
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=V|Nn0E
汇编语言 [}3cDR
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x86 CPU,DOS,TASM mjEs5XCC"
MODEL SMALL -{9Gagy2&
IDEAL >Wh3MG6
STACK 100H 2W3W/> 2h
Zj-BuE&@f
DATASEG H2Eb\v`#
HW DB 'Hello, world!$' (BERY
M^H90GN)X
CODESEG 74zSP/G'
MOV AX, @data eO{@@?/y
MOV DS, AX pIVq("&
MOV DX, OFFSET HW 2z983^
MOV AH, 09H ^t78jfl
INT 21H JJl7JwSTW
MOV AX, 4C00H ):bu;3E
INT 21H JCQ:+eqt
END ">6&+^BN'
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PZ34 *q
x86 CPU,GNU/Linux,NASM 3 C"_$?y"
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). B
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;Enter this into "hello.asm" then type: 0yHjrxc$
;"nasm -f elf hello.asm" m1e b8yX
;"ld hello.o -o hello" \$;~74}
;"./hello" k,X74D+
d,R6` i
section .data ;data section declaration :l~E E!
msg db 'Hello World!',0AH `{G?>z Fp
len equ $-msg ;string length (/fT]6(
:^G%57NX
section .text ;code section declaration >Me]m<$E;
global _start ;entry point (start of execution) l#6&WWmr
_start: mov edx,len ;string length ny`(f,)u*
mov ecx,msg ;string start pAg$oe#
mov ebx,1 ;file handle: stdout >h[(w
mov eax,4 ;sys_write 5w-JPjH
int 80h ;kernel system call >tEK+Y|N}
rBevVc![
mov ebx,0 ;return value lf8xL9v
mov eax,1 ;sys_exit !~d'{sy6
int 80h ;kernel system call ja75c~RUw
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C|$L6n>DR6
x86 CPU,Windows,MASM32 0IFlEe[>#
.386 cno;>[$
.model flat,stdcall h^d\xn9GT#
option casemap:none V5Xi '=
;Include 文件定义 "!a`ygqpT
include windows.inc fqX~xp
include user32.inc !a4cjc(
includelib user32.lib C.HYS S
include kernel32.inc 1$OVe4H1
includelib kernel32.lib /u?9S/
;数据段 `A"Q3sf%
.data :p&IX"Hh
szCaption db 'A MessageBox!',0 |>@-grs
szText db 'Hello,world!',0 !^1[ s@1
;代码段 Oh-Fp-v87
.code (h|ch#
start: Q^|6J#o[9
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK U,38qKE
invoke ExitProcess,NULL R|H[lbw
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> &PSTwZd
end start [%t3[p<)O
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jjX%$Hr
AWK [NZ-WU&&LP
BEGIN { print "Hello, world!" } J&
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BASIC `>\4"`I
传统版BASIC(例如GWBASIC): +/w(K,
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10 PRINT "Hello, world!" 33,;iE
20 END n3*UgNg%fK
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或在提示符输入: =Iy/cHK
7:h<`_HT(X
?"Hello, world!":END ^~,
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现代版BASIC(例如Quick BASIC): [h^f%
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Print "Hello, world!" ckAsGF_B~!
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以下的语句在Quick BASIC中同样有效: 6TY){Pw
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? "Hello,world!" %8a=mQl1^
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0n\^$WY
BCPL >H)^6sJ;%b
GET "LIBHDR" ;v%Q8
.|U4N/XN%q
LET START () BE >kt~vJI
$( =?wMESU
WRITES ("Hello, world!*N") <Kh?Ad>N
$) W0C{~|e
fVG$8tB
tSI& "-
Befunge ^v
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"!dlrow olleH">v 3Ca
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, (%6(5,
^_@ %A8Pkr<&E
E!dz/.
:jBZK=3F>
Brainfuck \5t`p67Ve_
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< ;gEp!R8
+++++++++++++++.>.+++.------.--------.>+.>. W]Y@WKeT
(D0C#<4P
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b[
C -l\~p4U
#include <stdio.h> 1d/NZJ9
'$n:CNha
int main(void) >g>f;\mD7$
{ RP,A!pa@
printf("Hello, world!\n"); SAd97A:
return 0; \s.1R/TyD
} r hiS
9 %D$T'K
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C++ wy,Jw3
#include <iostream> f0/jwfL
/!^L69um
int main() ,DexJ1
{ cSY2#u|v
std::cout << "Hello, world!" << std::endl; ;[FW!
return 0; Sg/:n,68
} [SCw<<l<
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<^CYxy
C++/CLI >(IITt
int main() l5{(z;xM
{ \Pw8wayr%
System::Console::WriteLine("Hello, world!"); o}WB(WsG
} ^zvA?'s
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B@ZqJw9J[
C# (C Sharp) A6{t%k~F
class HelloWorldApp >&$ $(Bp
{ ,"P5D&,_
public static void Main() o,*folL
{ t7{L[C$
System.Console.WriteLine("Hello, world!"); w^ixMn~nLF
} T)b3N|ONB
} EO4"Z@ji
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F3kC"H
COBOL >/7KL2*
IDENTIFICATION DIVISION. j#*asGdp#J
PROGRAM-ID. HELLO-WORLD. Gl?P.BCW.&
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ENVIRONMENT DIVISION. S/@dkHI'
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DATA DIVISION. J>HLQP
uS!
35{.>
PROCEDURE DIVISION. p{mxk)A
DISPLAY "Hello, world!". =$"zqa.B6
STOP RUN. *k3 d^9o#
pr0@sri@
u~/M
Common Lisp *kX3sG$8
(format t "Hello world!~%") 7,V!Iv^X
OYqYI!N/
v$gMLu=
DOS批处理 R$!;J?SS
@echo off f_i"/xC-/
echo "Hello, world!" :GwSs'$O
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m
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Eiffel 0[Xt,~
class HELLO_WORLD &;6|nl9;
<?q&PCAn^
creation F:*[
make T3u5al
feature Dyouk+08x
make is }#\;np
local 0j
a
io:BASIC_IO b*'=W"%\
do y (c|5CQ
!!io l6&v}M
io.put_string("%N Hello, world!") 7"a`-]Ap
end -- make `mq4WXO\
end -- class HELLO_WORLD g:.,}L
;+r) j"W
c:h.J4mv
Erlang h9Tf@]W
-module(hello). gCk y(4
-export([hello_world/0]). 0_,3/EWa
Ww'TCWk@
hello_world() -> io:fwrite("Hello, World!\n"). A]tf>H#1
+2;#9aa
I
e\d5SKY
Forth i">z8?qF
." Hello, world!" CR rx}ujjx
pU:C=hq4
6PzN>+t^y
Fortran DmXDg7y7s
WRITE(*,10) LRCS)UBY(.
10 FORMAT('Hello, World!') r7Q:l ?F2
STOP -KIVnV=&m
END (Qx-KRH
qOcG|UgF
PBAz`y2
HTML (.quX@w"m
<HTML> oxCs*
<HEAD> ~P]HG;$?n
<TITLE> Hello World! </TITLE> r.a9W?(E
</HEAD> JR a*;_
<BODY> 0'\FrG
<p>Hello World!</p> Top#u
</BODY> YA;8uMqh;
</HTML> 3h D2C'KD
vYMbson}
"#\bQf}
HQ9+ W3o}.|]
H WfTdD.Xx
SRG!G]?-
{o5K?Pb
INTERCAL y1\^v_.^
PLEASE DO ,1 <- #13 :_~PU$%0
DO ,1 SUB #1 <- #238 c> U{,z
DO ,1 SUB #2 <- #112 !aW*dD61
DO ,1 SUB #3 <- #112 f<> YYeY
DO ,1 SUB #4 <- #0 ~\)&{'
DO ,1 SUB #5 <- #64 }*}`)rj,
DO ,1 SUB #6 <- #238 qh(-shZ4Du
DO ,1 SUB #7 <- #26 [BZ(p
DO ,1 SUB #8 <- #248 rt@-Pw!B
DO ,1 SUB #9 <- #168 ^zWO[$n}tP
DO ,1 SUB #10 <- #24 dnX`F5zd
DO ,1 SUB #11 <- #16 X,!OWz:[
DO ,1 SUB #12 <- #158 uDE91.pUkr
DO ,1 SUB #13 <- #52 ^pQ;0[9Y0
PLEASE READ OUT ,1 S^Wqa:;
PLEASE GIVE UP a5U2[Ko80
{ Sliy'
m"|(w`n]E+
Java eVCkPv*
public class Hello ^cmP
{ cdtzf:#q
public static void main(String[] args) GaK_9Eg-2
{ FUqhSW
System.out.println("Hello, world!"); PcSoG\-G<
} $Z7|t
} ^`>Ysc(@&
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a@=36gx)
JSP xZ'`_x9l
<% ;AL@<,8
out.print("Hello, world!"); Hj4w
i|
%> 1-]x
Q0"F> %Cn
]BQWA
MIXAL Lc: SqF
TERM EQU 19 the MIX console device number xc]C#q
ORIG 1000 start address |e-+xX|;
START OUT MSG(TERM) output data at address MSG d7K17KiC
HLT halt execution `E0.P V
MSG ALF "MIXAL" z.9FDQLp
ALF " HELL" \,bFm,kC?
ALF "O WOR" |8U7C\S[
ALF "LD " gS<