“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。 m!!;CbPo
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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》。 nD)SR
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以下是用不同语言写成的Hello World程序的几个例子: b"`fS`@/MW
Ada =knLkbiq7,
with Ada.Text_Io; use Ada.Text_Io; (^sb('"
procedure Hello is 3m2y<l<
begin ,I+O;B:0
Put_Line ("Hello, world!"); 3,{;wJ
Z
end Hello; Z=%u:K}[
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Qy=tkCN
汇编语言 eI|~neh
jGJf[:M&Pm
x86 CPU,DOS,TASM l^o>7 cM
MODEL SMALL N"Y%*BkH
IDEAL K@!hrye
STACK 100H aO9\8\^
b}u#MU
DATASEG XRyeEwA;pp
HW DB 'Hello, world!$' }v?l0Gk(
:J )^gc
CODESEG XuZgyt"=r
MOV AX, @data CUjRz5L
MOV DS, AX e(`r"RrQ
MOV DX, OFFSET HW qEdY]t
MOV AH, 09H 73tjDO7d
INT 21H /^&$ma\
MOV AX, 4C00H 4K4u]"1
INT 21H eU-A_5
END o$*DFvk
4xFAFK~lx
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x86 CPU,GNU/Linux,NASM OT)`)PZ"
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). fg1uqS1rg
;Enter this into "hello.asm" then type: 5VfpeA`
;"nasm -f elf hello.asm" v{\~>1J{
;"ld hello.o -o hello" ?q5HAIZ`
;"./hello" uHDUuK:Ur
0{?%"t\/f
section .data ;data section declaration (ueH@A"9;
msg db 'Hello World!',0AH td#m>S
len equ $-msg ;string length {z'Gg
A 7|x|mW
section .text ;code section declaration W$Aypy
global _start ;entry point (start of execution) 'XSHl?+q
_start: mov edx,len ;string length *\Hut'7 d
mov ecx,msg ;string start o
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mov ebx,1 ;file handle: stdout j{zVVT
mov eax,4 ;sys_write 3|Ar~_]
int 80h ;kernel system call qEkhgJqk
2Paw*"U
mov ebx,0 ;return value BTE&7/i21
mov eax,1 ;sys_exit G0ENk|wbbj
int 80h ;kernel system call '_g*I
mj y+_
z_z'3d.r7
x86 CPU,Windows,MASM32 b1ZHfe:
.386 b|`
.model flat,stdcall fK=vLcH
option casemap:none \l 3M\$oS>
;Include 文件定义 L+)mZb&
include windows.inc N=:xyv
include user32.inc bW'Y8ok[v
includelib user32.lib
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include kernel32.inc Gs}lw'pK
includelib kernel32.lib yhyh\.
;数据段 .fY$$aD$4
.data Z?w=-
szCaption db 'A MessageBox!',0 jH4Wu`r;m
szText db 'Hello,world!',0 6K9-n}z
;代码段 ]O+Nl5*
.code .GPuKP|
start: j !`2Z@
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK nSU7,K`PM
invoke ExitProcess,NULL ]}AyDy6C
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 5d82M s
end start :#W>lq@H
8L(KdDY
R~BW=Dz,e
AWK .ZH5^Sv$vp
BEGIN { print "Hello, world!" } >Q^*h}IdW
N;e*eMFE
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BASIC -QP1Se*#
传统版BASIC(例如GWBASIC): OB~74}3;
aeF^&F0
10 PRINT "Hello, world!" F?TmOa0
20 END rYr.mX
(fWQ?6[
或在提示符输入: \[x4
'
9
?"Hello, world!":END ^kpu9H
NW;wy;;
现代版BASIC(例如Quick BASIC): @BXV>U2B{
h%@#jvh?4
Print "Hello, world!" ~#
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以下的语句在Quick BASIC中同样有效: Mxe
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? "Hello,world!" sQe>LNp,G
Y~M H
_Msaub!N
BCPL U
z6XQskX
GET "LIBHDR" *,DBRJ_*7
.{W)E
LET START () BE T/C1x9=?
$( Djf,#&j!3
WRITES ("Hello, world!*N") 2]*2b{gF,
$) u5FlT3hY.
)Hy|K1
mWM!6"
Befunge /fc@=CO
"!dlrow olleH">v vW
0m%
, ;-47d ^
^_@ C XZm/^
IDb|J%e^P
16[>af0<g
Brainfuck ~fn2B
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< Gt;@.jY&
+++++++++++++++.>.+++.------.--------.>+.>. vXrx{5gz
/
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Z>k#n'm^z
C Ot_]3:`J~
#include <stdio.h> ; F"g$_D0
<lPm1/8
int main(void) JcsHt;
{ 0d)M\lG
printf("Hello, world!\n"); 61C7.EZZ;
return 0; Rq'S>#e
} nS }<-s
>C>.\
J5K^^RUR
C++ oq
Xg
#include <iostream> {BN#h[#B{
J/y83@
int main() L\J;J%fz.
{ jp%S3)
std::cout << "Hello, world!" << std::endl; JX;<F~{.
return 0; gD@){Ip
} hD 82tr
SwGx?U
Woym/[i
C++/CLI q
'yva
int main() Rsm^Z!sn
{ Jq-]7N%k/
System::Console::WriteLine("Hello, world!"); 3qC}0CP*
} ~Fcm[eoC
~!d\^Z^i
+Mb.:_7'
C# (C Sharp) *Hn8)x}E
class HelloWorldApp `4J$Et%S
{ $bR~+C
public static void Main() <)H9V-5aZ
{ .uZ3odMlx
System.Console.WriteLine("Hello, world!"); (y~TL*B
} kVMg 1I@
} 7>%8eEc
j</: WRA`]
.|70;
COBOL Xc-'Y"}|`t
IDENTIFICATION DIVISION. #=A)XlZMd
PROGRAM-ID. HELLO-WORLD. f}P3O3Yv&
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ENVIRONMENT DIVISION. jV1.Yz(`
jNk%OrP]
DATA DIVISION. SwMc
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$xN|5;+
PROCEDURE DIVISION. }5"u[Z.
DISPLAY "Hello, world!". X'iWJ8
STOP RUN. }BP;1y6-r
<)D$51 &0
Ysv"
6b}
Common Lisp }qD\0+`qi
(format t "Hello world!~%") N(yzk_~
S)@j6(HC4
`;egv*!P
DOS批处理 61U09s%\0
@echo off xJ.M;SF4
echo "Hello, world!" O:K2Y5R?B
,z=LY5_z)
A.w.rVDD
Eiffel }O
p;
g^W
class HELLO_WORLD CpTjJXb
vnuN6M{
creation ]6j{@z?{
make #GFr`o0$^
feature /PKN LK
make is J<lW<:!3]
local M"L=L5OH-
io:BASIC_IO +lTq^4
do Dw"\/p:-3
!!io %(Icz?
io.put_string("%N Hello, world!") 'Pbr
v
end -- make :k#HW6p
end -- class HELLO_WORLD 2~[juWbz
\{NO?%s0p
t6t!t*jO
Erlang N2o7%gJw
-module(hello). /$%%s=@IL
-export([hello_world/0]). dc'Y`e
k}rbim
hello_world() -> io:fwrite("Hello, World!\n"). P$,Ke<
%z$#6?OK^
*n!J=yS
Forth J .<F"r>
." Hello, world!" CR ^ZCD ~P_=
6L~n.5B~o
Dt1jW
Fortran : rVnc =k
WRITE(*,10) Ho]su?
10 FORMAT('Hello, World!') ),!qTjD
STOP !<h)w#>en
END Uw:"n]G]D?
'N(R_q6MW
{.]7!ISl5
HTML 'c~4+o4co
<HTML> 2&5K.Ui%
<HEAD> Tj- s4x
<TITLE> Hello World! </TITLE> VtohL+
</HEAD> L RF103nw
<BODY> !`r$"}g
<p>Hello World!</p> [-x7_=E#
</BODY> mp3s-YfRc
</HTML> &nK<:^n
"wc<B4"
S|}L &A
HQ9+ }K9H^H@r!
H d d;T-wa}
"Rl}VeDY
i@'dH3-kO
INTERCAL K,UMqAmk
PLEASE DO ,1 <- #13 ;n},"&
DO ,1 SUB #1 <- #238 : E?V.
DO ,1 SUB #2 <- #112 g\AY|;T
DO ,1 SUB #3 <- #112 fc@A0Hf
DO ,1 SUB #4 <- #0 4GM6)"#d
DO ,1 SUB #5 <- #64 DV{=n C
DO ,1 SUB #6 <- #238 wyG;8I
DO ,1 SUB #7 <- #26 xN(|A}w
DO ,1 SUB #8 <- #248 J=yTbSN\v
DO ,1 SUB #9 <- #168 rM"l@3hP
DO ,1 SUB #10 <- #24 h`wD
DO ,1 SUB #11 <- #16 i6N',&jFU
DO ,1 SUB #12 <- #158 o" SMbj
DO ,1 SUB #13 <- #52 &.ACd+Cd
PLEASE READ OUT ,1 \j.:3Xr
PLEASE GIVE UP WPDyu.QD
h7@6T+#WoT
K+iP6B
Java "w_aM7x_
public class Hello (iGTACoF
{ 3M=
public static void main(String[] args) .sA.C]f
{ =Runf
+}
System.out.println("Hello, world!"); <7$1kGlA
} Vz[C=_m
} 'm9` 12H
^W@5TkkBQq
6zn5UW#q
JSP r%N)bNk~
<% RT5T1K08I
out.print("Hello, world!"); 3mni>*q7d
%> iR0y"Cii
:i7;w%B
RGX=)
MIXAL DeYV$W
B
TERM EQU 19 the MIX console device number P
}uOJVQ_
ORIG 1000 start address rN{ c7/|
START OUT MSG(TERM) output data at address MSG i@CxI<1'
HLT halt execution 4`R(?
MSG ALF "MIXAL" RFH0
ALF " HELL" Ca3~/KrM
ALF "O WOR" ]s748+
ALF "LD " 6 aV_@no.C
END START end of the program E~:x(5'%d
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Mc}^LDX
Nuva 2Hv+W-6v
<..直接输出..> >"<Wjr8W!$
Hello, world! sT' 5%4
f
V( J|
<..或者..>
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BF <ikilR
<. I!?}jo3
// 不带换行 SZ$Kz n
? "Hello, world!" IaXeRq?<
OBAi2Vw
// 或者 ;w[0t}dPl
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// 带换行 veh<R]U
?? 'Hello, world!' ?I@W:#>o
.> IN G@B#Cl
*=c1do%F
DDH:)=;z
OCaml IB7E}56l
let main () = &JI8]JmU)
print_endline "Hello world!";; C73kJa
4_cqT/
#
4PVVu<
Pascal ^ovR7+V
program Hello; \K!VNB>h
begin Z/;aT -N
writeln('Hello, world!'); bbyg8;/
end. $ DSZO!pB
{jX2}
g'qa}/X
Perl w)Qp?k
d
#!/usr/local/bin/perl .h4 \Y A
print "Hello, world!\n"; J
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NPe%F+X
\)?HJ
PHP fsWTF<Y
<?php p"ZG%Ow5Q]
print("Hello, world!"); X(-4<B
?> ;VO:ph4Aj
pD#rnp>WWt
1^(ad;BCy
Pike R[x_j
#!/usr/local/bin/pike }d}Ke_Q0
int main() BKjS ,2C
{ xx%j.zDI]
write("Hello, world!\n"); <3C*Z"aQ>|
return 0; [e}]}t8m
} 'u |c
-:y,N
9^
6MMOf\
PL/I DG:Z=LuJr
Test: procedure options(main); o="M
declare My_String char(20) varying initialize('Hello, world!'); W+ko q*P
put skip list(My_String); o!ebs0
end Test; #KexvP&*
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X=fYWj[H,
Prolog ;P%1j| 7
goal F%D.zvKN
write("hello,world!"). ")XHak.JX
&H/'rd0M
zL `iK"N`
Python MXNFlP
#!/usr/local/bin/python qm8B8&-
print "Hello, world!" 41?HY{&2
)g#T9tx2D
>rKIG~P_
REXX l$pm_%@2]
say "Hello, world!" ;LSANr&
8_B4?` k
3>`mI8$t
Ruby hVAn>_(
#!/usr/bin/ruby 8ek@: Mw
print "Hello, world!\n" 0e ~JMUb
""F5z,'
r8rgY42
Scheme RF4vtQC=
(display "Hello, world!") ']z{{UNUN
(newline) V>-e y9Q\
&n}f?
%JD,$pPs
sed (需要至少一行输入) VfC <WVYiZ
sed -ne '1s/.*/Hello, world!/p' Z<y I\1
_w+:Dv~*a
V0.vQ/
Smalltalk qqr?!vem6
Transcript show: 'Hello, world!' dx{bB%?Y\=
J76kkW`5
# 0Q]dO
SNOBOL JZ*/,|1}EC
OUTPUT = "Hello, world!" Gm.T;fc:
END 9gEwh<
l2rd9-T
{9;CNsd
SQL
}mq6]ZrK
create table MESSAGE (TEXT char(15)); e~[/i\
insert into MESSAGE (TEXT) values ('Hello, world!'); 7#ibN!
select TEXT from MESSAGE; 5Y'qaIFR
drop table MESSAGE; ?o4C;
xPk8$1meZM
E+R1 !.
Tcl OSWYGnZg
#!/usr/local/bin/tcl 7>Ouqxh21
puts "Hello, world!" A8fOQ
aa?b`[Xa
ZQoU3AD;
TScript [.'|_l
? "Hello, world!" \fyRsa)
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