“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。 alyWp
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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》。 *&XOzaVU
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以下是用不同语言写成的Hello World程序的几个例子: arm26YA-,
Ada 5LR
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with Ada.Text_Io; use Ada.Text_Io; W;Ct[Y8m
procedure Hello is w~Aw?75t
begin n&Bgpt~
Put_Line ("Hello, world!"); #mFIZMTRd
end Hello; =nGgk}Z
:wtK'ld
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汇编语言 )1N~-VuT
XU_gvz
x86 CPU,DOS,TASM EN^5Hppb
MODEL SMALL G
.NGS%v
IDEAL \(C6|-:GY
STACK 100H
Z/RSZ-
I;FHjnn(
DATASEG VX0}x+LJ
HW DB 'Hello, world!$' g=n{G@ *N
Q\rf J||
CODESEG H}?"2jF
MOV AX, @data ]lqLC
MOV DS, AX qz95)
MOV DX, OFFSET HW pLSh
+*F
MOV AH, 09H zcGmru|k
INT 21H 6+!$x?5|NP
MOV AX, 4C00H g-? @a
INT 21H cDS\=Bf
END w{mw?0
Z-:T')#Cf
|yS %
x86 CPU,GNU/Linux,NASM OYSq)!:
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). V/`vX;%
;Enter this into "hello.asm" then type: F%P"T%|
;"nasm -f elf hello.asm" Hsn'"
;"ld hello.o -o hello" /z!Tgs4
;"./hello" -^+fZBU;
9fm9xTL
section .data ;data section declaration ?8N^jjG
msg db 'Hello World!',0AH ;* QK^ #
len equ $-msg ;string length 't6l@_x
X!_&%^L'
section .text ;code section declaration <2N{oK.
global _start ;entry point (start of execution) A3)"+`&PUl
_start: mov edx,len ;string length C#-HWoSi
mov ecx,msg ;string start {xx}xib3
mov ebx,1 ;file handle: stdout }yVx"e)
mov eax,4 ;sys_write aVCPaYe^
int 80h ;kernel system call 9U8x&Z]P
z%S$~^=b
mov ebx,0 ;return value -L+kt_>
mov eax,1 ;sys_exit yDfH`]i)U
int 80h ;kernel system call l^Ob60)2
3~{I/ft
;plBo%EBV
x86 CPU,Windows,MASM32 qg{gCG
.386 <rtKPlb//
.model flat,stdcall 58XZ]Mc0
option casemap:none &Ts!#OcB,
;Include 文件定义 *?BY+0
include windows.inc !NH(EWER
include user32.inc <pfl>Uf
includelib user32.lib (>vyWd]
include kernel32.inc [I=|"Ic~
includelib kernel32.lib ,VS(4
;数据段 <Y."()}GeH
.data :h5G|^
szCaption db 'A MessageBox!',0 _aR{B-E
szText db 'Hello,world!',0 }[Z'Sg]s
;代码段 _tJt
eDRY
.code
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start: K(i}?9WD
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK P&sWn?q Ol
invoke ExitProcess,NULL X8VBs#tLE
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> jB(+9?;1${
end start kL%ot<rt)w
Rjq Xz6
xRe`Duy:
AWK W?5')
BEGIN { print "Hello, world!" } n9xP8<w8
=nHKTB>
[02rs@c>
BASIC <a]i"s
传统版BASIC(例如GWBASIC): (oi:lC@h*
!{g<RS(c
10 PRINT "Hello, world!" \= v.$u"c
20 END ,U3
d
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或在提示符输入: .Q%Hi7JMi
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?"Hello, world!":END QkBw59L7
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现代版BASIC(例如Quick BASIC): cc|W1,q
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Print "Hello, world!" iX$G($[l(
hI'WfF!X
以下的语句在Quick BASIC中同样有效: `G qe]ZE#"
tw_o?9
? "Hello,world!" WeM38&dWY
j{%;n40$
=vbG'_[7
BCPL o]4]fLQ
GET "LIBHDR" }T@=I&g;
,WRm{v0f^
LET START () BE UGSZg|&6#*
$( j6GIB_
WRITES ("Hello, world!*N") E+aePo U
$) fOV_ >]u
hq
3n&/
fzIs^(:fl
Befunge oX|T&"&
"!dlrow olleH">v CRK%^3g
, <E2 IU~e
^_@ qYC&0`:H
(xHmucmwp
ib=)N)l
Brainfuck 1,-C*T}nR
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<<
h[W`P%xZ
+++++++++++++++.>.+++.------.--------.>+.>. 'z ?Hv
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Q;]JVT1
C 50cVS)hG6d
#include <stdio.h> z`wIb
rYb5#aT[
int main(void) ^%r6+ey
{ ek][^^4o
printf("Hello, world!\n"); w:5?ofC
return 0; IRN,=
} qYK^S4L
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n K
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C++ Sq5,}oT_{j
#include <iostream> hY`<J]-'`
M~A#_%2U
int main() NM{)liP
;8
{ }9^:(ty2A
std::cout << "Hello, world!" << std::endl; 8,U~ p<Gz
return 0; B4y_{V
} g88k@<Y
vNSUrf,r
287j,'vR
C++/CLI "*bLFORkq'
int main() s<!A<+Sh
{ V'kBF2}
System::Console::WriteLine("Hello, world!"); L]=]/>jQ6
} Gdow[x
xrf|c
,;pUBrz/[
C# (C Sharp) SY,ns*>1F
class HelloWorldApp NfoHQU<n
{ Cff6EE
public static void Main() %r^tZ ;;l
{ Ic'D#m
System.Console.WriteLine("Hello, world!"); HhynU/36
} 1UMEbb
} ~cm4e>o
zZMKgFR@
}ILBX4c
COBOL W>TG?hH
IDENTIFICATION DIVISION. K@p9_K8
PROGRAM-ID. HELLO-WORLD. >#h,q|B
&b (*
ENVIRONMENT DIVISION. ep8UWxB5
o(tJc}Mh+(
DATA DIVISION. Z66Xj-o
;MQl.?vj
PROCEDURE DIVISION. kwp%5C-S
DISPLAY "Hello, world!". y(DT^>0
STOP RUN. &J/EBmY[
&$XTe2
:
;8L1'
Common Lisp Ar)EbGId
(format t "Hello world!~%") |M?s[}ll
MsI R ~
;gL{*gR]S
DOS批处理 GJdL1ptc
@echo off %vO(.A+
echo "Hello, world!" O1\4WG%
ViW2q"4=
E,d<F{=8,o
Eiffel >,Y+ 1
class HELLO_WORLD +o@:8!IM1
6D]fDeH\
creation N4x5!00
make ^Zvb3RJ g
feature 1Xi>&;],
make is F;_c x
local ;'Hu75ymo
io:BASIC_IO 8AW}7.<5
do Rk5#5R n
!!io xbi\KT`~
io.put_string("%N Hello, world!") :2KPvp7?
end -- make J<L\IP?%
end -- class HELLO_WORLD K bQXH!J
u3Z]!l
rV\G/)xL
Erlang
Qq6'[Od
-module(hello). '__>M>[
-export([hello_world/0]). T}{zh
rI\5djiYJ
hello_world() -> io:fwrite("Hello, World!\n"). Jqzw94
r<kgYU`
_8 r'R
Forth <r <{4\%}
." Hello, world!" CR 8g:VfzaHu
^>%.l'1/(
%AJ9fs4/
Fortran 9{3_2CIL
WRITE(*,10) `oe=K{aX
10 FORMAT('Hello, World!') 'DXT7|Df
STOP 3~R,)fO;
END X*MK(aV3
D?%[du:V
M._E$y,5
HTML Q_p&~ PNy5
<HTML> Vo^J2[U
<HEAD> R`$Y]@i&B
<TITLE> Hello World! </TITLE> S@!_{da
</HEAD> I++ Le%w
<BODY> [>>_%T\I
<p>Hello World!</p> *.eeiSi{
</BODY> >`3F`@1L0
</HTML> TDZ==<C
"*/IP9?]
lH?jqp
HQ9+ @f"[*7Q`/
H t$,G%micj
\:F$7 *Ne
pRh9+1EM;
INTERCAL 4$, W\d
PLEASE DO ,1 <- #13 D^>d<LX
DO ,1 SUB #1 <- #238 } D!tB
DO ,1 SUB #2 <- #112 ,_H H8[&
DO ,1 SUB #3 <- #112 8mmnnf{P
DO ,1 SUB #4 <- #0 CAvi P61T
DO ,1 SUB #5 <- #64 PA803R74
DO ,1 SUB #6 <- #238 9i 9
,X^=
DO ,1 SUB #7 <- #26 x6JV@wA&
DO ,1 SUB #8 <- #248 qLX<[UL
DO ,1 SUB #9 <- #168 X0+E!~X$zM
DO ,1 SUB #10 <- #24
wT19m
DO ,1 SUB #11 <- #16 hC8WRxEGq
DO ,1 SUB #12 <- #158 _(?`eWo
DO ,1 SUB #13 <- #52 XXX y*/P
PLEASE READ OUT ,1 s*
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PLEASE GIVE UP raOuD3
fBZLWfp9
QjXJo$I6
Java xx1l Ecj
public class Hello z.SKawm6T
{ y@$E5sz
public static void main(String[] args) |xZu?)M4
{ L ?;UcCB
System.out.println("Hello, world!"); o:cTc:l)
} %E#Ubm!
} ?(R#
zd8A8]&-
3O4lGe#u
JSP fnr8{sr.2Z
<% 2G-"HOG
out.print("Hello, world!"); *^g]QQ
%> Jb$G
$X-PjQb1Bb
4qE4 i:b
MIXAL G na%|tUz|
TERM EQU 19 the MIX console device number 2DsP "q79k
ORIG 1000 start address q,#s m'S
START OUT MSG(TERM) output data at address MSG '?m2|9~
HLT halt execution (O(TFE5^
MSG ALF "MIXAL" 5tkKd4VfL
ALF " HELL" ;u(*&vRqr^
ALF "O WOR" re%XaL
ALF "LD " mX.mX70|J
END START end of the program k kD#Bb
|6?s?tC"u
!nJl.Y$
Nuva yc9!JJMkH
<..直接输出..> E<! L^A
M`
Hello, world! v4E=)?
cs\=8_5
<..或者..> :ln|n6X
OW=3t#"7Kp
<. g8'8"9:xC
// 不带换行 "]p&7
? "Hello, world!" DFZ@q=ZT
w0nbL^f
// 或者 ):tv V
z]%@r 7
// 带换行 Jia@HrLR
?? 'Hello, world!' {Y-'i;j?
.> kk<%VKC
qHe
H/e%`V
RJ0,7E<B
OCaml [R8BcO(
let main () = r9bAbE
bI
print_endline "Hello world!";; C_ d|2C6
aw lq/
52#
*{q}
Pascal +,R!el!o~u
program Hello; `%#_y67v
begin KLG .?`h:
writeln('Hello, world!'); r8*xp\/
end. :+QNN<
S/pU|zV[
fk?!0M6d
Perl X1}M_h%
#!/usr/local/bin/perl <W3p!
print "Hello, world!\n"; 7z, $
OA9P"*
91&=UUkK?
PHP M Tl
@#M
<?php ^)Y3V-@t
print("Hello, world!"); &Q"vXs6Gt
?> Brs}
>m%TUQ#%
Zp_j\B
Pike RaTNA W)v>
#!/usr/local/bin/pike NW0se
DL
int main() 3"0QW4A
{ b0h\l#6
write("Hello, world!\n");
7|dm"%@
return 0; U,yZ.1V^:
} }0H<G0
S3U]AH)C
-b+)Dp~$p
PL/I D1>*ml
Test: procedure options(main); yRyRH%p)
declare My_String char(20) varying initialize('Hello, world!'); 7u^wO<
put skip list(My_String); bL0]Yuh
end Test; ~MB)}!S:
#2Q%sE?
W2$rC5|
Prolog ZT/f
goal hB\BFVUSn/
write("hello,world!"). LR#.xFQ+
B$JPE7h@[P
FO!0TyQ
Python tQ'R(H`
#!/usr/local/bin/python mGP%"R2X
print "Hello, world!" Jr2>D=
:u=y7[I
U$a)lcJd
REXX Mx93D
say "Hello, world!" OH n~DL2
$`0^E#Nl
y<`:I|y
Ruby G;t<dJ8
#!/usr/bin/ruby |yOIC,5[JW
print "Hello, world!\n" F [-D
+Nka
(1er?4
]NWcd~"b!Z
Scheme ;Cx`RF
w
(display "Hello, world!") Y@ ;/Sf$Q
(newline) qB$QC
|4aU&OX
5f@&XwD9
sed (需要至少一行输入) '{JMWNY
sed -ne '1s/.*/Hello, world!/p' n3/Bs
v)K|{x
:N<o<