“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。 %0lf
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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》。 [NL -!
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以下是用不同语言写成的Hello World程序的几个例子: g#}tm<
Ada W=3? x
with Ada.Text_Io; use Ada.Text_Io; V;k#})_-
procedure Hello is o ~;M"
begin @*SA$9/l
Put_Line ("Hello, world!"); 2Q}7fht
end Hello; z#RuwB+
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汇编语言 {gw[%[ZM
pD[pTMG@$
x86 CPU,DOS,TASM QhsVIta
MODEL SMALL }YRO'Q{
IDEAL hox< vr4
STACK 100H j-QGOuvW
lM$t!2pRB
DATASEG >%l:Dw\A:
HW DB 'Hello, world!$' oJh"@6u6K
TVYz3~m
CODESEG e:BDQU
MOV AX, @data c`ftd>]
MOV DS, AX Sj@15 W
MOV DX, OFFSET HW jccOsG9;_
MOV AH, 09H %7 /,m
INT 21H ]=|P<F
MOV AX, 4C00H [8TS"ph>
INT 21H ~@@
Z|w
END _CL{IY
m d_g}N(C
me:iQ.g
x86 CPU,GNU/Linux,NASM \+9;!VWhl
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). JL``iA
;Enter this into "hello.asm" then type: c@9##DPn
;"nasm -f elf hello.asm" Ok,HD7
;"ld hello.o -o hello" n>S2}y
;"./hello" bM ^7g
>x*)GPDa
section .data ;data section declaration g8'~e{=(
msg db 'Hello World!',0AH 3
1k
len equ $-msg ;string length >4M<W4
>MPa38
section .text ;code section declaration *{4
ETr7
global _start ;entry point (start of execution) bJPJ.+G7
_start: mov edx,len ;string length 6#vI;d[^
mov ecx,msg ;string start `
jyKCm.$#
mov ebx,1 ;file handle: stdout &//2eL
mov eax,4 ;sys_write TA| s@T{
int 80h ;kernel system call ?9Ma^C;}
E>"8/
mov ebx,0 ;return value ($'V&x8T
mov eax,1 ;sys_exit .lr5!Stb
int 80h ;kernel system call #"<?_fao~
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H nd+l)ng
x86 CPU,Windows,MASM32 7gr^z)${J
.386 GL`tOD:P"
.model flat,stdcall
0#^Bf[Dn
option casemap:none ,Y-S(
;Include 文件定义 [4: Yi{>
include windows.inc q~M2:SN@X
include user32.inc OT@yPG
includelib user32.lib %{"dP%|w4}
include kernel32.inc 7f*
RM
includelib kernel32.lib 86qcf"?E
;数据段 3daC;;XO
.data :X Lp
szCaption db 'A MessageBox!',0 2lo:a{}j
szText db 'Hello,world!',0 |EEi&GOR(y
;代码段 QXY}STs
.code x)5LT}p
start: kV+ R5R
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK MyFCJJ/
invoke ExitProcess,NULL _ Mn6 L=
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> wPgDy
end start SiR\a!, C
h1-Gp3#
p#=;)1
AWK EZ{\D!_Y
BEGIN { print "Hello, world!" } +q-c8z
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BASIC 6n,xH!7
传统版BASIC(例如GWBASIC): Yv=g^tw
T%~SM5
10 PRINT "Hello, world!" A2BRbwr>
20 END G
B&:G V
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或在提示符输入: N<n8'XDdG
bw5T2wYZ
?"Hello, world!":END S<pkc8
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现代版BASIC(例如Quick BASIC): =f `=@]
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Print "Hello, world!" 'kEG.Oq7
bvp)r[8h
以下的语句在Quick BASIC中同样有效: bl$j%gI%,
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? "Hello,world!" lRH0)5`
Bq{]Eh0%
[4\aYB 9N
BCPL u>}zm_
GET "LIBHDR" t)'dF*L
.pW o >`"
LET START () BE nALnB1
$( 7UDq/:}Fo
WRITES ("Hello, world!*N") L#!$hq9{_
$) DJ|BM+
rKT)!o'
> Y]_K
Befunge \HD-vINV;
"!dlrow olleH">v N%*9&FjrL
, r&Qt_
^_@ b!,ja?
0ERsMnU'
sZwZWD'
Brainfuck bBG/gQ
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< hLo>R'@uN
+++++++++++++++.>.+++.------.--------.>+.>. T]uKH29.%
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C ThiN9! Y
#include <stdio.h> xU:4Y0y8
`0z/BCNB
int main(void) B.RRdK+:
{ om>VQ3
printf("Hello, world!\n"); #<]Iz'\`
return 0; Wp`C:H
} 3C#RjA-2[
zQ<88E&&Xs
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C++ xl9(ze
#include <iostream> OGGSS&5tw
1OP"5f
int main() k:mlt:
{ ]LVnt-q
std::cout << "Hello, world!" << std::endl; Z)5klg$c
return 0; .jaZ|nN8`
} >3!DOv
-O %[!&`
q}sK
C++/CLI F+3!uWUK
int main() kfRJ\"`
{ /3F<=zi kO
System::Console::WriteLine("Hello, world!"); z'*ml ?
} zhjJ>d%w
zWtj|%ts
9cz )f\
C# (C Sharp) zuMO1s
class HelloWorldApp @.1Qs`pt
{ E[ 0Sst x
public static void Main() _jo$)x+'x
{ oSmjs
System.Console.WriteLine("Hello, world!"); <"A#Eok|4
} wx./"m.M
} #w;;D7{@m
Vf$1Sj w
oc:x&`j
COBOL $ hoYkA
IDENTIFICATION DIVISION. ,6RQvw
PROGRAM-ID. HELLO-WORLD. !]G jIT]Oh
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ENVIRONMENT DIVISION. l@#b;M/
r.?+gW!C
DATA DIVISION. A]#_"fayo
W#VfX!~
PROCEDURE DIVISION. [NjajA~z>F
DISPLAY "Hello, world!". WkP|4&-<
STOP RUN. %_)b>C18y
a}w&dE$!-
%;
qY'+
Common Lisp 5c)wZ
(format t "Hello world!~%") aX]y`
Lg b
.T{U^0 )
DOS批处理 >pnz_MQ
@echo off =/m}rcDN
echo "Hello, world!" PYaOH_X.
}^Z< dbt
t:disL&!E
Eiffel 6kC)\uy
class HELLO_WORLD `u$24h'!
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creation eiOi3q
make v >NTh
feature kHZKj!!R
make is so'eZ"A:
local TZkTz
P[
io:BASIC_IO v3Eo@,-
do ?nY/, q&
!!io . rRc
io.put_string("%N Hello, world!") H&9wSG`
end -- make m8p4U-*j
end -- class HELLO_WORLD h|)2'07
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Erlang Y[T J;O!R
-module(hello). 95VqaR,
-export([hello_world/0]). r^e-.,+
N4tc V\O
hello_world() -> io:fwrite("Hello, World!\n"). pc^E'h:
u"eZa!#
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Forth ^g\h]RD}
." Hello, world!" CR -)<JBs>
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N:5b1TdI,
Fortran WI%zr2T
WRITE(*,10) eUYG96Jw
10 FORMAT('Hello, World!') 4U:DJ_GN
STOP h@EJTAi
END <x ^IwS
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m79m{!q$-
HTML 9
4 "f
<HTML> /]P%b K6B
<HEAD> +38Lojb}
<TITLE> Hello World! </TITLE> Sv~PXi^`H
</HEAD> 4D0(Fl
<BODY> ?|\0)wrRf
<p>Hello World!</p> WReYF+Uen
</BODY> aIY$5^x
</HTML> 9[B<rz
E\W;:p,{A
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H V>DXV-%&C
9
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X*(gT1"t
INTERCAL *vEU}SxRuv
PLEASE DO ,1 <- #13 xtG)^x!
DO ,1 SUB #1 <- #238 $eTv6B?m
DO ,1 SUB #2 <- #112 h4B+0
DO ,1 SUB #3 <- #112 Be'?#Qe
DO ,1 SUB #4 <- #0 ,!xz*o+#@
DO ,1 SUB #5 <- #64 ]KfghRUH
DO ,1 SUB #6 <- #238 A632 :V
DO ,1 SUB #7 <- #26 &:IfhS
DO ,1 SUB #8 <- #248 jqV)V> M.
DO ,1 SUB #9 <- #168 aU,0gvI(}
DO ,1 SUB #10 <- #24 zS#f%{
DO ,1 SUB #11 <- #16 Tq_1wX'\
DO ,1 SUB #12 <- #158 H!Fr("6}
DO ,1 SUB #13 <- #52 u66TrYS tG
PLEASE READ OUT ,1 56/.*qa
PLEASE GIVE UP N^)<)?
7/$nA<qM
nI((ki}v
Java $yP'k&b!
public class Hello 9J't[(
u|u
{ qen44;\L
public static void main(String[] args) WMt&8W5
{ ~7F EY0 /
System.out.println("Hello, world!"); P*?d6v,r
} T9&,v<f
} zzDNWPzsA
e)fJd*P
A?%XO
%
JSP TW;|G'}$
<% `Pz!SJ|
out.print("Hello, world!"); 5pN08+
%> Off: ~
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0jl:Yzo&\
MIXAL -;W\f<q]
TERM EQU 19 the MIX console device number IeqWR4Y
ORIG 1000 start address 7N-CtQnv
START OUT MSG(TERM) output data at address MSG dT*f-W
HLT halt execution v ](G?L9b
MSG ALF "MIXAL" `"^@[1
ALF " HELL" x0TnS#
ALF "O WOR" S]#=ES'^/
ALF "LD " {!:|.!-u
END START end of the program z[$9B#P
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Nuva [|m>vY!
<..直接输出..> !Ed<xG/
Hello, world! gn4g 43
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<..或者..> z?IY3]v*z<
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#p)~V8~
<. A+bubH,
// 不带换行 o#KPrW`XJ/
? "Hello, world!" s1*WK&@
t0AqGrn
// 或者 dKN3ZCw*gF
z?b(|f\!
// 带换行 ;]O 7^s#v
?? 'Hello, world!' .-1{,o/&Q
.> 8t^;O!
2=UTH%1D
j)lM:vXR
OCaml UU:QK{{E
let main () = &&QDEDszp
print_endline "Hello world!";; ?6l,
Z({`9+/>u
1PT_1[eAR
Pascal lG^mW\O
program Hello; ~)\1g0
begin SUFaHHk@/b
writeln('Hello, world!'); YQ[&h
end. vng8{Mx90*
6[Pr<4J
#.t$A9'
Perl B#V4
#!/usr/local/bin/perl GT`<jzAi Q
print "Hello, world!\n"; =jd=Qs IL
A"T. nqB^y
cE8 _keR~
PHP ~Sem_U`G
<?php KL_}:O68
print("Hello, world!"); @snLE?g j
?> ]e3}9.
t;~`Lm@hY
ST[1'T+L
Pike a_fW{;}[
#!/usr/local/bin/pike o5G "J"vxe
int main() C5n=2luI_
{ PHL@1K{)
write("Hello, world!\n"); >yHnz?bf@
return 0; OU3+SYM
} U&\{/l
!5 :[X vI#
pxnUe1=
PL/I 5nIlG
Test: procedure options(main); ML"P"&~u6
declare My_String char(20) varying initialize('Hello, world!'); &``oZvuB
put skip list(My_String); >\x
39B
end Test; Y/I6.K3
]mT}
\b
?{P6AF-xcf
Prolog 4W-+k
goal <%JO3E
write("hello,world!"). DN{G$$or
k_^/
/<pQ!'/G
Python 05LQh
#!/usr/local/bin/python *pUV-^uo
print "Hello, world!" ]c=1-Rl
i1Sc/
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