“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。 7$uJ7`e
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将Hello World程序作为第一个学写的程序,现在已经成为一种传统。该程序最早出现在由Brian Kernighan和Dennis Ritchie写的计算机程序设计教程《C语言程序设计》。 Fx#jV\''s
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以下是用不同语言写成的Hello World程序的几个例子: SW 8x]B
Ada P3o@g kXP
with Ada.Text_Io; use Ada.Text_Io; h*l&RR:i
procedure Hello is W!la -n
begin 1mgLX_U9
Put_Line ("Hello, world!"); Op}ZB:
end Hello; GDhM<bVqM*
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汇编语言 Ciihsm
jai|/"HSXw
x86 CPU,DOS,TASM ;_"U "?h_J
MODEL SMALL +c$I&JO
IDEAL k*Nr!Z!}
STACK 100H raUs%Y3
jAhP>
t:
DATASEG B6M+mx"G
HW DB 'Hello, world!$' SoQR#(73HK
\k@$~}xD,
CODESEG *75YGD
MOV AX, @data Z~u9VYi!
MOV DS, AX uO(w1Q"^
MOV DX, OFFSET HW $:bih4@>
MOV AH, 09H a)s;dp}T%
INT 21H 9;=dxWf
MOV AX, 4C00H eph)=F$
INT 21H Zq"7,z7
END vF={9G
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x86 CPU,GNU/Linux,NASM {|<"C?
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). T3,1m=S
;Enter this into "hello.asm" then type: K`6z&*
;"nasm -f elf hello.asm" 7 &%^>PU7
;"ld hello.o -o hello" :8f[|XR4\N
;"./hello" uofr8oL~
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section .data ;data section declaration D d $qQ
msg db 'Hello World!',0AH b>=_*nw9
len equ $-msg ;string length ~^US/"
N|Cs=-+
section .text ;code section declaration WlwY <)
global _start ;entry point (start of execution) `:|@Zln
_start: mov edx,len ;string length -1%OlKC
mov ecx,msg ;string start Lxe^v/LsT
mov ebx,1 ;file handle: stdout !!,0'c
mov eax,4 ;sys_write OSDy'@
int 80h ;kernel system call \=e8%.#@J
:1wrVU-?h
mov ebx,0 ;return value ;y>a
nE}n{
mov eax,1 ;sys_exit x4kWLy7Sz
int 80h ;kernel system call L8$1K &!
Ib`-pRU;
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x86 CPU,Windows,MASM32 `wz[='yM
.386 pmc=NTr&<
.model flat,stdcall /n5n
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option casemap:none u?H 2%hD
;Include 文件定义 DDd/DAkCX
include windows.inc })F*:9i*
include user32.inc 6[P-Ny{z
includelib user32.lib 6^F'|Wh
include kernel32.inc kdrod [S
includelib kernel32.lib P,xwSvO#M
;数据段 9^ed-h
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.data G=/k>@Di
szCaption db 'A MessageBox!',0 Qyh/ed/
szText db 'Hello,world!',0 yW7'?
;代码段 l|`^*%W@u6
.code Snw3`|Y~<
start: 2.I^Xf2
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK &9[P-w;7u
invoke ExitProcess,NULL n D6G
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> RYR-K^;R
end start >t+
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AWK hsNWqk qys
BEGIN { print "Hello, world!" } J ++v@4Z
Qst$S} n
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JDSS
BASIC X ]j)+DX>
传统版BASIC(例如GWBASIC): _F(P*[[&
Nn6S
8kc
10 PRINT "Hello, world!" H=c`&N7E
20 END ;O#g"8
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或在提示符输入: vp)Vb^K>
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?"Hello, world!":END p.JXSn
Z=z%$l
现代版BASIC(例如Quick BASIC): u dk.zk
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Print "Hello, world!" tNaL;0#Tx
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以下的语句在Quick BASIC中同样有效: kPxT"
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? "Hello,world!" [a1jCo
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':h
=*v8a
BCPL Rd&9E
GET "LIBHDR" T2'RATfG
8G^<[`.@j
LET START () BE 7{kP}?
$( s}5+3f$f
WRITES ("Hello, world!*N") uXZg1F)
$) f i~I@KJ>
]wn/BG)
N;sm*+r
Befunge QrYa%D+
"!dlrow olleH">v eCbf9B
, HM[klH]s=
^_@ ]1`g^Z@ 0
WY
</zXA$m
Brainfuck Yg|lq9gD
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< -#:zsu
+++++++++++++++.>.+++.------.--------.>+.>. jQs>`P-CM
(#\pQ51
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C }%!tT\8
#include <stdio.h> X*eW#|$\
w|Cx>8P8@
int main(void) uBnoQ~Qd[z
{ K!z`
printf("Hello, world!\n"); kQ>^->w
return 0; w!^~<{Kz
} G 7LIdn=
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C++ 'cZN{ZMWG
#include <iostream> TYns~X_PR
"h"NW[R
int main() L5fuM]G`
{ kyw/LE3$-
std::cout << "Hello, world!" << std::endl; Of}|ib^t
return 0; yx{3J
} T)~9Wac
/*)Tl
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C++/CLI *Ust[u
int main() KP"%Rm`XN
{ B~o-l*
System::Console::WriteLine("Hello, world!"); !p"aAZT7sq
} m6mwyom.
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C# (C Sharp) gN6rp(?y
class HelloWorldApp X"MU3]
{ csZc|kDI
public static void Main() Qeq5 gN]
{ zy'D!db`Z
System.Console.WriteLine("Hello, world!"); &}6KPA;
} KDP H6
} C(T;>if0NH
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e 8\;t"D
COBOL G[Lpe
IDENTIFICATION DIVISION. 4-GXmC
PROGRAM-ID. HELLO-WORLD. bru/AZ# de
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ENVIRONMENT DIVISION. 6X2PYJJZ
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DATA DIVISION. * *H&+T/B
SGc8^%-`
PROCEDURE DIVISION. o|pT;1a"
DISPLAY "Hello, world!". p,g1eb|E
STOP RUN. ^L4Qbc(vJ
a,t``'c;
,"0)6=AE
Common Lisp >gll-&;t
(format t "Hello world!~%") nz.{P@[Qk
13'vH]S$M
3riw1r;Q
DOS批处理 UYP9c}_,4
@echo off _jU5O;
echo "Hello, world!" fl\aqtF
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"6ECgyD+E!
Eiffel `Mj}md;O"
class HELLO_WORLD -f1k0QwL
0JuD^
creation TJ8E"t*)
make 1nknSw#
feature {:nQl}
make is HmmS(fU
local g9fq5E<G
io:BASIC_IO `Hx~UH)
do ,B}I?vN.
!!io t>)45<PEw
io.put_string("%N Hello, world!") qSCv )S(
end -- make :wqC8&V
end -- class HELLO_WORLD F|bYWYED;
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Erlang Q?t^@
-module(hello). ?']h%'Q
-export([hello_world/0]). F1%vtk;2?
=QJRMF
hello_world() -> io:fwrite("Hello, World!\n"). DaH Z{T8>d
CI:^\-z
o KD/rI
Forth m(iR|Zx
." Hello, world!" CR Q:C$&-$
98jN)Nl,oD
xda;
K~w
Fortran W=B"Q
qL
WRITE(*,10) AwUi+|7r])
10 FORMAT('Hello, World!') /.Nov
STOP ,tH5e&=U01
END /2M.~3gQ
rx"s!y{!-
RF!a//
HTML iZ3W"Vd`b
<HTML> ,B<l
<HEAD> E`H$YS3o
<TITLE> Hello World! </TITLE> XZNY4/25G
</HEAD> yqXH:757~
<BODY> \'CN
<p>Hello World!</p> DmVP
</BODY> }V;+l8
</HTML> 3l<S}k@M)
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B\*@krI@
HQ9+ jDM
w2#<
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;{[>&4
{4aWR><
INTERCAL
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PLEASE DO ,1 <- #13 x_!0.SU
DO ,1 SUB #1 <- #238 Il@Y|hK
DO ,1 SUB #2 <- #112 @.$Xv>Jt$
DO ,1 SUB #3 <- #112 +y2[msBs
DO ,1 SUB #4 <- #0 }{ 9&:!uA
DO ,1 SUB #5 <- #64 +|Hioq*,t
DO ,1 SUB #6 <- #238 U!%!m'
DO ,1 SUB #7 <- #26 "P@>M) -9Z
DO ,1 SUB #8 <- #248 XNMa0
DO ,1 SUB #9 <- #168 gk BdR +
DO ,1 SUB #10 <- #24 :HxA`@Ok
DO ,1 SUB #11 <- #16 HpEQEIvt
DO ,1 SUB #12 <- #158 d1@%W;qX!
DO ,1 SUB #13 <- #52 v4miU;|\
PLEASE READ OUT ,1 x.0p%O=`
PLEASE GIVE UP R1:k23{
if;71ZE
mV73
\P6K
Java I]"96'|N
public class Hello Zc
|/{$>:W
{ Rd7_~.Bo
public static void main(String[] args) Hd7,ZHj3^
{ C9DJO:f.2y
System.out.println("Hello, world!"); H2xeP%;$
} o`zr>
} I\?9+3 XnQ
. #Z+Z
kc'pN&]r:
JSP X0;4_,=
<% H
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out.print("Hello, world!"); ,6!rR,0
%> plu$h-$d
p47S^gW
J?JeU/:+
MIXAL GSoZx0
TERM EQU 19 the MIX console device number qrvsjYi*w
ORIG 1000 start address dUgrKDNyA
START OUT MSG(TERM) output data at address MSG Uq_j\A;c
HLT halt execution '/Bidb?
MSG ALF "MIXAL" Ogt]_
ALF " HELL" a9zw)A
ALF "O WOR" o[ENp'r
ALF "LD " O<)y-nx;X
END START end of the program 22<0DhJ
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+#b:d=v!
Nuva 0c.s
-
<..直接输出..> `s '#
Hello, world! t&5%?QyM
be5,U\&z
<..或者..> {u!)y?}I-
&~UJf4b|A
<. OX%MP!#KU
// 不带换行 )5JU:jNy
? "Hello, world!" =K&\E2kA4
6qe*@o
// 或者 6+V\t+aug
N$Y " c*
// 带换行 P+t#4J
?? 'Hello, world!' V>64/
.> ]%uZ\Q;9p
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