“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。 LaO8)lqR
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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》。 f"RC(("6W
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以下是用不同语言写成的Hello World程序的几个例子: QEg[
Ada 6se8`[
with Ada.Text_Io; use Ada.Text_Io; GF6 o
procedure Hello is !NH(EWER
begin ?r KbL^2
Put_Line ("Hello, world!"); MA,*$BgZ
end Hello; & XmaGtt
1aQm r=,
md*U
汇编语言 |Fe[RGi+8
d\uN
x86 CPU,DOS,TASM 4d\^
MODEL SMALL $m;`O_-T
IDEAL #B<EMGH
STACK 100H 23P&n(.
S=ZZ[E_~S
DATASEG s]%Cz \
HW DB 'Hello, world!$' ;Ax-f04gG
tPQ|znB|
CODESEG w%.hALN5-C
MOV AX, @data & ?x R
MOV DS, AX }%p:Xv@X!
MOV DX, OFFSET HW H.\`(`6
MOV AH, 09H g]lEG>y1R
INT 21H 8'u9R~})
MOV AX, 4C00H yI 2UmhA
INT 21H T/\RViG3
END n9xP8<w8
JD#x+~pb,8
(B>/LsTu
x86 CPU,GNU/Linux,NASM lhKn&U
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 2uOYuM[7gH
;Enter this into "hello.asm" then type: i}VF$XN
;"nasm -f elf hello.asm" 7Y9#y{v1
;"ld hello.o -o hello" wkM1tKhy/
;"./hello" uX*2Rs$s
N$6e KJ]
section .data ;data section declaration Up{[baWF
msg db 'Hello World!',0AH &cL1 EQ(
len equ $-msg ;string length (da`aRVDp
B:Ts_9*
section .text ;code section declaration )GkJ%o#H2
global _start ;entry point (start of execution) j:h}ka/!p
_start: mov edx,len ;string length se\f be ^0
mov ecx,msg ;string start xIGq+yd(
mov ebx,1 ;file handle: stdout G
IN|cv=
mov eax,4 ;sys_write P9/ (f$ =
int 80h ;kernel system call -B;#pTG
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mov ebx,0 ;return value q#tUDxf(|
mov eax,1 ;sys_exit $Z:O&sD{
int 80h ;kernel system call 053bM)qW
.\ ;'>qy
6nZ]y&$G-k
x86 CPU,Windows,MASM32 ~Q&J\'GQH
.386 8@t8P5(vL
.model flat,stdcall OP`f[lCiL
option casemap:none n9'3~qVZ
;Include 文件定义 c_3B: F7
include windows.inc 2aj1IBnz6/
include user32.inc 4.!1odKp
includelib user32.lib xU.1GI%UPu
include kernel32.inc =6u@JpOl
includelib kernel32.lib oX|T&"&
;数据段 pR61bl)
.data 9MMCWMV
szCaption db 'A MessageBox!',0 F_Y]>,U
szText db 'Hello,world!',0 4j#y?^s
;代码段 ZwkUd-=0i
.code ib=)N)l
start: w:t~M[kTW
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK ye(b 7CX
invoke ExitProcess,NULL +<a\0FsD
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> iH8we,s'
end start o;$xN3f,
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k =5k)}i
AWK fpR|+`k
BEGIN { print "Hello, world!" } V|8'3=Z=
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BASIC J$#T_4 )
传统版BASIC(例如GWBASIC): vGkemJ^/
0P$1=oK
10 PRINT "Hello, world!" 9{u=
20 END [d`E9&Hv3
IL*B@E8
或在提示符输入: #`VAw ) eV
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?"Hello, world!":END g(@F`W[
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现代版BASIC(例如Quick BASIC): M+ +Dk7B
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Print "Hello, world!" e$[O J<t
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以下的语句在Quick BASIC中同样有效: v\:AOY'
GW AT0
? "Hello,world!" =-r"@2HBq
QTHY{:Rmu
&qx/ZT
BCPL cXq9k!I%
GET "LIBHDR" r8EJ@pOF2w
>V"{]v
LET START () BE 1aAOT6h
$( w){B$X
WRITES ("Hello, world!*N") s ~Eo]e
$) U1YqyG8
"S;4hO
"yu{b]AU
Befunge So ziFI
"!dlrow olleH">v hk?i0#7W
, BZ?w}%-MO
^_@ Zz0er|9]Q
y4kn2Mw;
;>PHkJQ
Brainfuck <Y`(J#
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< /dCsZA
+++++++++++++++.>.+++.------.--------.>+.>. && ]ix3
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#N][-i
C tR!C8:u
#include <stdio.h> Ce+:9} [
-53c0g@X
int main(void) fM.#FT??
{ #ft9ms#N
printf("Hello, world!\n"); ]WMzWt:L
return 0; Uh0g !zzp
} aVR!~hvFs
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6.]~7n
C++ X!|eRA~o
#include <iostream> ^li3*#eT
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int main() 2sGKn
a
{ ;L$-_Z
std::cout << "Hello, world!" << std::endl; Ar)EbGId
return 0; |M?s[}ll
} JL
{H3r&/S
,~3rY,y-
f}yRTR GJv
C++/CLI #j Tkz
int main() 3/gR}\=
{ 1L`V{\_0s
System::Console::WriteLine("Hello, world!"); oLkzLJ
} ?$`kT..j,u
1V]ws}XW
Fug4u?-n
C# (C Sharp) GJWGT`"
class HelloWorldApp w7`pbcY,
{ d%I7OBBx@
public static void Main() .$s']' =
{ ;HCK iHC
System.Console.WriteLine("Hello, world!"); Lv@WI6DM
} =oVC*b
} ;'Hu75ymo
8AW}7.<5
]-t>F
COBOL I:t?# )wl
IDENTIFICATION DIVISION. ZklO9Ox(
PROGRAM-ID. HELLO-WORLD. RL&0?OT
1BmKwux:
ENVIRONMENT DIVISION. Y;R,ph.a
(Q*x"G#4>
DATA DIVISION. 9Tr ceL;
Qq6'[Od
PROCEDURE DIVISION. GH':Yk
DISPLAY "Hello, world!". ];CIo>
b_(
STOP RUN. y_>DszRN`u
k>i`G5Dh
Cgln@Rz
Common Lisp khjdTq\\
(format t "Hello world!~%") p5qfv>E8)
;1yF[<a
]O}e{Q>
DOS批处理 #*rJI3
@echo off %7-(c
echo "Hello, world!" pq]z%\$u
NA$)qX_
tJ_Y6oFm=
Eiffel KC&XOI %
class HELLO_WORLD M]X!D7
/":/DwI'
creation >VZxDJ$R
make Q7e4MKy7
feature v6DjNyg<x
make is x~uDCbL
local 6|'7Mr~\
io:BASIC_IO ?7pn%_S
do ZD]{HxGL!
!!io [>>_%T\I
io.put_string("%N Hello, world!") q_^yma
end -- make @C^x&Sjm
end -- class HELLO_WORLD 8&HBR #
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`%~}p7Zu
Erlang @f"[*7Q`/
-module(hello). 1`|Z8Jpocj
-export([hello_world/0]). l
z"o( %D
fe<7D\Sp@
hello_world() -> io:fwrite("Hello, World!\n"). &ZMQ]'&
)H]L/n
LN(\B:wAY
Forth T^MY w
." Hello, world!" CR UrciCOQf
HCrQ+r{g
4".I*ij
Fortran a_/4 ^+
WRITE(*,10) E@otV6Wk[@
10 FORMAT('Hello, World!') huA?*fat
STOP (!8b$)k
END w%TrL+v
&n8Ja@Y]
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HTML d3\?:}o,
<HTML> Z'9 |
<HEAD> {HM[ )t0
<TITLE> Hello World! </TITLE> \tvL<U"'
</HEAD> M]k Q{(
<BODY> t90M]EAV
<p>Hello World!</p> fBZLWfp9
</BODY> AfhJ6cSIE
</HTML> :4)x
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*-fd$l.
HQ9+ ,6MJW#~]
H YC St X)r
Oq% TW|a#
@,= pG
INTERCAL b==jlYa=
PLEASE DO ,1 <- #13 KyT=:f
V
DO ,1 SUB #1 <- #238 451.VI}MR
DO ,1 SUB #2 <- #112 |S).,B
DO ,1 SUB #3 <- #112 fnr8{sr.2Z
DO ,1 SUB #4 <- #0 %U}6(~
DO ,1 SUB #5 <- #64 6W1+@
q
DO ,1 SUB #6 <- #238 $X-PjQb1Bb
DO ,1 SUB #7 <- #26
{E(2.'d
DO ,1 SUB #8 <- #248 ed5oN^V.<
DO ,1 SUB #9 <- #168 u/|@iWK:
DO ,1 SUB #10 <- #24 _IOUhMo
DO ,1 SUB #11 <- #16 Q\IViM
DO ,1 SUB #12 <- #158 f4AN"rW
DO ,1 SUB #13 <- #52 ~.G$0IJY
PLEASE READ OUT ,1 1k:yU(
PLEASE GIVE UP KI#v<4C$P
Oprfp^L
@$5~`?
Java 3'6 UvAXFH
public class Hello S9$,.aq
{ '3^ qW
public static void main(String[] args) kq(><T
{ i Pr(X
System.out.println("Hello, world!"); [~|k;\2 +
} ,0AS&xs$
} 1; kMbl]
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Y
t>%b[(a
JSP 3}phg
<% 0e#PN@
out.print("Hello, world!"); }m?Ut|
%> O^./)#!#
u=s,bt,"5
qHe
H/e%`V
MIXAL c-NUD$
TERM EQU 19 the MIX console device number WdS1v%
ORIG 1000 start address g%]<sRl:-
START OUT MSG(TERM) output data at address MSG ^Lfwoy7R
HLT halt execution Rvf{u8W
MSG ALF "MIXAL" fX,O9d$
ALF " HELL" la)+"uW
ALF "O WOR" paN=I=:*M
ALF "LD " 7=X6_AD
END START end of the program [bo"!Qk%
*Uy>F[%@
OPq|4xu
Nuva Si~wig2
<..直接输出..> Oz_CEMcy
Hello, world! AIQ
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^fd*KM
<..或者..>
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lQ ki58.
<. j?$B@Zk
// 不带换行 CpX[8>&osD
? "Hello, world!" mP15PZ
D1>*ml
// 或者 ph(LsPT-
AriV4 +
// 带换行 GFbn>dY
?? 'Hello, world!' 5Y`4%*$
.> +U,t*U4,
Ym]g0a
pcscNUp
OCaml zSsBbu:
let main () = B$JPE7h@[P
print_endline "Hello world!";; FO!0TyQ
#LR6wEk
?Y\WSI?i
Pascal Jr2>D=
program Hello; ~v/`
`s
begin U$a)lcJd
writeln('Hello, world!'); =w _T{V
end. gV ':Xe
dE[X6$H[
v\!Cq+lFML
Perl L!/{Z
#!/usr/local/bin/perl ^HP$r*
print "Hello, world!\n"; c??m9=OX1
;VCFDE{K=
y}U'8*,
PHP $E:z*~?
<?php # vy[v22
print("Hello, world!"); "AMw o(Yi
?> '5T:*Yh
8?EKF+.u|
],R\oMYy|P
Pike 5>1c4u`x
#!/usr/local/bin/pike FRPdfo37
int main() X&49C:jN
{ {}"
<
write("Hello, world!\n"); *E|3Vy{4
return 0; (l2n%LL]*
} c(3idO*R)
`N}'5{I
^eRbp?H*T
PL/I 2Z^p)
Test: procedure options(main); 9K&YHg:1
declare My_String char(20) varying initialize('Hello, world!'); UAI'tRYN_
put skip list(My_String); 5PpS/I:on
end Test; 4 l+z
Dg
~k"Ice
5X]f}6kT
Prolog fx^yC.$2
goal pF~aR]Q
write("hello,world!"). m5?t<H~
Je'%EJ
h:z$uG
Python <1~_nt~(*
#!/usr/local/bin/python &)!N5Veb
print "Hello, world!" r0'a-Mk;
%|2x7@&s
/(s N@kt
REXX vsq
|m5
say "Hello, world!" _t X1z^
NPE 4@c_a@
?%Pi#%P
Ruby eM7F8j
#!/usr/bin/ruby &y3;`A7,
print "Hello, world!\n" bSTTr<W
shY8h
3?&P^{
Scheme ronZa0
(display "Hello, world!") H,!yG5yF
(newline) U'} [:h~)
|gGD3H
gPpk0LZi
sed (需要至少一行输入) [/J(E\9
sed -ne '1s/.*/Hello, world!/p' 5S7ATr(*
,nniSG((3
ZZeF1y[q
Smalltalk d8^S~7
Transcript show: 'Hello, world!' >+[{m<Eq
p<RIvSqM
j W-K
SNOBOL Oj7).U0;#
OUTPUT = "Hello, world!" $|19]3T@Z
END #6 $WuIG
GkdxwuRw
5lE9UoG[Q
SQL 3e;ux6
create table MESSAGE (TEXT char(15)); ]rO/IuB
insert into MESSAGE (TEXT) values ('Hello, world!'); XE:bYzH
select TEXT from MESSAGE; =A/$[POr
drop table MESSAGE; _E^ !,Wz
mGUG
wqt/0,\
Tcl zgSv -h+f
#!/usr/local/bin/tcl pm*i!3g'
puts "Hello, world!" d]^\qeG^p
~=Fp0l)#
ENZYrWl
TScript HhUk9 >7
? "Hello, world!" |OBZSk1jp
chU,));F
idZ]d6
Turing v<]$,V]
put "Hello, world!" \'P79=AU
hJoh5DIE95
n!?u/[@
UNIX-style shell TmgSV#G
程序中的/bin/sh可改为您使用的shell 9P-I)ZqL
BbNl:`
#!/bin/sh SrvC34<7
echo 'Hello, world!' ju/#V}N
b5UIX Kim
]nx5E_j2
GUI J<ZG&m362p
G-RE
Delphi m/1;os5+8
program HelloWorld; od]1:8OF
uses W&9X <c*
Dialogs; P<R'S
begin ap .L=vn
ShowMessage('Hello, World!');
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end. 8FT@TUFb
7j{63d`2
J]$]zD
Nuva x@,B))WlGr
<. 1(m[L=H5>
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) SQI =D8
.> ]*yUb-xY
JA6#qlylL
M[5fNK&nD
Visual Basic ~&Y%yN^
MsgBox "Hello, world!" P&9&/0r=_
'或者 6vebGf
Print "Hello, world!" v\Xyz
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9{n?Jy
A&qZ:&(OM
Visual FoxPro &l