“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。 A'EI1_3{
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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》。 ai 4 k?
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以下是用不同语言写成的Hello World程序的几个例子: <#0i*PM_
Ada +^7cS6"L
with Ada.Text_Io; use Ada.Text_Io;
!oz{XWE
procedure Hello is UBd+,]"f
begin 0AM_D >fH
Put_Line ("Hello, world!"); FVXsu!R
end Hello; +yL; ?+s>=
zjoo;(?D|
J6#h~fp v
汇编语言 .X!!dx1<
S_7]_GQ9
x86 CPU,DOS,TASM "leSQ
MODEL SMALL j*3;G+
IDEAL p[4 +`8
STACK 100H 2$JZ(qnN
19fa7E<
DATASEG EZ!! V~
HW DB 'Hello, world!$' =1[_#Moc6
Zfs-M)
CODESEG GgxPpS<ne
MOV AX, @data Z=%
j|xE_
MOV DS, AX ~~yng-3)1
MOV DX, OFFSET HW uzp\V
39
MOV AH, 09H L@Rgiq|v-|
INT 21H +s#%\:Y M
MOV AX, 4C00H P(PBOB97
INT 21H x(c+~4:_M
END SGKAx<U
&YIL As^8A
M~zI;:0O
x86 CPU,GNU/Linux,NASM O/eZ1YAC
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ?;tPqOs&
;Enter this into "hello.asm" then type: z$&B7?
;"nasm -f elf hello.asm" |5flvkid
;"ld hello.o -o hello" >33=0<
;"./hello" _`gF%$]b
56C8)?
section .data ;data section declaration mAlG}<
msg db 'Hello World!',0AH K+Him]
b
len equ $-msg ;string length yl$Ko
1ZFKLI`V
section .text ;code section declaration !w7/G
global _start ;entry point (start of execution) -aT-<+?s
_start: mov edx,len ;string length @Z/jaAjUC
mov ecx,msg ;string start F
w{:shC
mov ebx,1 ;file handle: stdout ]v<8l4p;
mov eax,4 ;sys_write hT%fM3|,e
int 80h ;kernel system call 8i;1JA
&l cfX\y
mov ebx,0 ;return value vapC5,W"2-
mov eax,1 ;sys_exit C-edQWbcP
int 80h ;kernel system call |0ZJ[[2
M[I=N
o?ug`m"
x86 CPU,Windows,MASM32 @.sn
.386 6zM:p/
.model flat,stdcall 3nBZ+n4z
option casemap:none p7\LLJ y
;Include 文件定义 ]2u
include windows.inc tE0{ae
include user32.inc Nd(3q]{
includelib user32.lib +VVn@=&?
include kernel32.inc ">T\]V$R
includelib kernel32.lib B-g uz[v
;数据段
fDYTupKXH
.data ]DnAW'm
szCaption db 'A MessageBox!',0 O#.YTTj
szText db 'Hello,world!',0 =?|$}vDO[
;代码段 pbKmFweq
.code v,n 8$,
start: :G6CWE
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK Fepsa;\sU
invoke ExitProcess,NULL W9l](Ow
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ;tQc{8O6L
end start <IWg]AJT:
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r?)1)?JnHe
AWK r!b>!
BEGIN { print "Hello, world!" } "PMJh 3q
cKYvNM
5H Cw%n9
BASIC {zZ)JWM<w
传统版BASIC(例如GWBASIC): =
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'-myOM7
10 PRINT "Hello, world!" 6}Y==GPt
20 END [!U%''
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或在提示符输入: 6,4vs+(|\
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.l
?"Hello, world!":END nHF66,7t
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现代版BASIC(例如Quick BASIC): T}J)n5U}\
BoT#b^l
Print "Hello, world!" ~_i=hx
ms3"
以下的语句在Quick BASIC中同样有效: 7x.j:{2
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? "Hello,world!" Dlz0*eHD
nYyKz
Rz
H6Zo|n
BCPL S.[L?uE~F
GET "LIBHDR" B _ J2Bf
e
6wevK\
LET START () BE @ddCVxd
$( @D[+@N
WRITES ("Hello, world!*N") &@xm< A\S
$) ?Xpk"N7
j#3IF *"
q-^{2.ftcx
Befunge fhn$~8[_A
"!dlrow olleH">v 6 _V1s1F
, 'hu'}F{
^_@ CE{2\0Q
Cn=#oE8(A
a`:F07r
Brainfuck xrXfZ>$5bM
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< ^PC;fn,I
+++++++++++++++.>.+++.------.--------.>+.>.
cY+fZ=
x _kT
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Z;NaIJiL-
C Eve,*ATI
#include <stdio.h> ,2U
W)Mz1v #s
int main(void) =,6X_m
{ },X.a@:
printf("Hello, world!\n"); ^d#
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return 0; Uo9@Y{<B
} @ o<OI
[g`4$_9S
%<+Ku11
C++ oR%cG"y
#include <iostream> L{1[:a)']B
$ r-rIW5\
int main() djoP`r
{ 'w1ll9O
std::cout << "Hello, world!" << std::endl; 'k}w|gNB
return 0; IR3+BDE)>
} N`d%4)|{
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'A3*[e|OS
C++/CLI n4B
uM R
int main() ,Y|
;V
{ G,+3(C
System::Console::WriteLine("Hello, world!"); D'%M#S0
} -`\n/"#X6i
Wm}T=L`
s(Wys^[g
C# (C Sharp) :3s^, g
class HelloWorldApp zXUB6.
e
{ g`Q!5WK*
public static void Main() 89KFZ[.}]
{ 3A0Qjj=
System.Console.WriteLine("Hello, world!"); =oq= ``%
} H>D?
} [uJS.`b
v.sjWF
mm*nXJ
COBOL `tuGy}S2
IDENTIFICATION DIVISION. U)iBeYW:
PROGRAM-ID. HELLO-WORLD. .i )n1
E:uTjXt
ENVIRONMENT DIVISION. yW*,Llb5
vV=rBO0a?
DATA DIVISION. [5!{>L`
GBBp1i
PROCEDURE DIVISION. ru/{s3
DISPLAY "Hello, world!".
KR R)pT
STOP RUN. [ns==gDD
A!^r9 ?<
JbitRV@a
Common Lisp `2\:b^h
(format t "Hello world!~%") RZVZ#q(DU
!M)] 1Y
j%ZBAk)}
DOS批处理 dD~H ft
@echo off \d]Y#j<
echo "Hello, world!" guf*>qNr
)^"V}z
t
-AolW+Y
Eiffel y9LO;{(
class HELLO_WORLD M&gi$Qs[E
T/ eX7p1
creation W2zG"Q
make ,`k6@4
feature h;y}g/HZ
make is Qe4 % A
local X%N!gy
io:BASIC_IO PBFpV8P,
do s1#A0%gx
!!io bKzG5|Qu
io.put_string("%N Hello, world!") D&G?Klq
end -- make Uq{$j5p8
end -- class HELLO_WORLD @#-\BQ;
-Lb7=98
i:jB
Erlang Dsc0;7~6
-module(hello). njO~^Hl7
-export([hello_world/0]). G!G:YVWXP
:2/jI:L~
hello_world() -> io:fwrite("Hello, World!\n"). .}Ys+d1b9c
E`hR(UL
?
euRKYGW
Forth GRVF/hPn
." Hello, world!" CR BSB&zp
mpVD;)?JmM
G`Z<a
Fortran :PY6J}:
WRITE(*,10) 1CSGG'J]E
10 FORMAT('Hello, World!') ]\oT({$6B
STOP {.[EX MX
END G-K{
^;9l3P{
!_~/Y/M
HTML qN9 ?$\
<HTML> HY?#r]Ryt
<HEAD> oOAkwc%)b
<TITLE> Hello World! </TITLE> a\oz-`ESa
</HEAD> |!7leL
<BODY> =1(7T.t
<p>Hello World!</p> ) j&khHD
</BODY> `L[q`r7
</HTML> I&gd"F _v}
fo`R=|L[
, /jHhKW
HQ9+ 5JK'2J&
H %g89eaEZ
B!8X?8D
8faT@J'e;
INTERCAL $<C",&
PLEASE DO ,1 <- #13 iQT0%WaHl
DO ,1 SUB #1 <- #238 6gO(
8
DO ,1 SUB #2 <- #112 1@|%{c&+9
DO ,1 SUB #3 <- #112 m']$)Iqw
DO ,1 SUB #4 <- #0 }u$c*}
DO ,1 SUB #5 <- #64 dTu*%S1Z
DO ,1 SUB #6 <- #238 JKO*bbj
DO ,1 SUB #7 <- #26 5[r}'08b
DO ,1 SUB #8 <- #248 }LQV2 hKTG
DO ,1 SUB #9 <- #168 &)JoB
DO ,1 SUB #10 <- #24 \*qradgx$
DO ,1 SUB #11 <- #16 NjA[(8\:
DO ,1 SUB #12 <- #158 UJ%.KU%Q}
DO ,1 SUB #13 <- #52 6#K.n&=*
PLEASE READ OUT ,1 {<gX~./]c
PLEASE GIVE UP S~ S>62
0dS (g&ZR
R^sgafGl=
Java ,aBy1K
public class Hello Q=vo5)t
{ O;McPw<&\:
public static void main(String[] args) 8'bZR]
{ M5d EZ
System.out.println("Hello, world!"); c;-NRvVb
} *B{]
} 0T#z"l<L
,_w}\'?L
*P]]7DR
JSP .d$Q5Qae
<% '@w'(}3!3R
out.print("Hello, world!"); f}4A,%:1
%> =2DK?]K;
'+j;g
llh
+r?
MIXAL .f;@OqU
TERM EQU 19 the MIX console device number !+z^VcV
ORIG 1000 start address `,/5skeJ
START OUT MSG(TERM) output data at address MSG V
EsM
HLT halt execution Vkd_&z7
MSG ALF "MIXAL" -e_TJA
ALF " HELL" ].aFdy
ALF "O WOR" 02%~HBS
ALF "LD " F^%\AA]8
END START end of the program xN}f?
O'#;Ge/,
M.Tp)ig\#
Nuva k{b|w')
<..直接输出..> B"#pvJN
Hello, world! !TY0;is
S% Ky+0
<..或者..> 89{;R
F0zaA
<. HrFbUK@@
// 不带换行 $v e$Sq
? "Hello, world!" sKR%YK
"A
u8|CeA
// 或者 On!+7is'
4MW oGV9
// 带换行 /YJBRU2
?? 'Hello, world!' #*"V'dj;e
.> Bj><0
cNF
B1E:P`t
B^zg#x#8
OCaml OkISRj'!U
let main () = #DJZ42
print_endline "Hello world!";; T3"'`Sd9;
9xw"NcL
t98S[Z(-%+
Pascal yENAc sv
program Hello; #8M^;4N>[
begin L2}<2
writeln('Hello, world!'); &sBD0R(a
end. ;1nXJ{jKw
+\&6Zbn
h4hp5M
Perl gV\Y>y4v
#!/usr/local/bin/perl ?@FqlWz ,
print "Hello, world!\n"; !T
,=kh
,C0y3pL
J9j
@V4
PHP ;XjXv'
<?php `r3 klL,W'
print("Hello, world!"); QV\af
?> <}8G1<QZ'.
>py[g0J
Fi;OZ>;a
Pike Mk973'K'
#!/usr/local/bin/pike 83'+q((<
int main() {+d)M
{ ~[og\QZX
write("Hello, world!\n"); Vmh$c*TE
return 0; vRf$#fBEQ
} 7w8UnPuM
uW#s;1H.)
hm0A%Js
PL/I I} +up,B]o
Test: procedure options(main); Y TY(Et1i
declare My_String char(20) varying initialize('Hello, world!'); jA^Dk$
put skip list(My_String); IqsUtWSp
end Test; '!?t+L%gO
>g~IP>
^P]5@d v
Prolog &V+KM"Ow
goal X%(NI(+x,
write("hello,world!"). Ej6ho 0_
@)[8m8paV
R)*l)bpZ#
Python p$jAq~C
#!/usr/local/bin/python >b5 ;I1o=y
print "Hello, world!" g"Ueo'd*
c$BH`" <*
HJym|G>%?
REXX BtKor6ba
say "Hello, world!" Hy,""Py
h7TkMt[l
+Ig%h[1a
Ruby ZUS5z+o
#!/usr/bin/ruby xaoR\H
print "Hello, world!\n" (&r`
l&0
[UC_
Iu`S0#+
Scheme En\q. 3
5
(display "Hello, world!") g"m9[R=]6
(newline) &HAu;u@
d8+@K&z|
dKU:\y
sed (需要至少一行输入) .8%b;b
sed -ne '1s/.*/Hello, world!/p' :g|NE\z`)/
2]5Li/
0rI/$
Smalltalk IhZn
Transcript show: 'Hello, world!' /N<aN9Z<x,
enQW;N1_M
a8ouk7G
SNOBOL 6oZHSjC*
OUTPUT = "Hello, world!" ]o0]i<:
END g"kI1^[nj
.j^BWr
T{m) = (q
SQL $0un`&W
create table MESSAGE (TEXT char(15)); 2QAP$f0Ln
insert into MESSAGE (TEXT) values ('Hello, world!'); $M!iQ"bb
select TEXT from MESSAGE; CxJ3u
drop table MESSAGE; ='4)E6ea?
yE,qLiH
9%NobT
Tcl IvY3iRq6
#!/usr/local/bin/tcl AJ&j|/
puts "Hello, world!" *V\.6,^v
EU|IzUjFj|
Ml{
]{n
TScript ?nbu`K6T
? "Hello, world!" EQd<!)HZ
1ywdcg
19y,O0# _
Turing 3#dz6+
put "Hello, world!" C#yRop_d]o
FBB<1( {A
G}+@C]
UNIX-style shell {I$iD
程序中的/bin/sh可改为您使用的shell E"S#d&9
|o9`h 9i
#!/bin/sh u7RlxA:
echo 'Hello, world!' sP2Uj
ZS(%!+ M
+lVA$]d
GUI } eHxw+.
o 7tUv"Rs
Delphi <rK[ &JlJ
program HelloWorld; 4'*.3f'bp
uses _xm<zy{`S
Dialogs; }d>.Nj#zh
begin QKq4kAaJ!
ShowMessage('Hello, World!'); |%ZJN{!R
end. wuYak"KX
&QW&K
_6r[msH"
Nuva 9s[
<. 0!ZaR6
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) &p_iAMn:9
.> n^l*oEl
6m(? (6+;K
_,aFQ^]'9
Visual Basic P!IA;i
MsgBox "Hello, world!" ob2_=hQnC
'或者 4u%AZ<-C}m
Print "Hello, world!" +75"Q:I
.[1 f$
D&uaA-;s
Visual FoxPro &S66M2
? "Hello, world!" aQ\SV0PI
h%W,O,K/
oQmXKV+[v
X11 r nr-wUW@
用一个程序 mTWd+mx
)8#-IXxp
xmessage 'Hello, world!' S (xs;tZ
KU
oAxA
用C++和gtkmm 2 >bQOpGy}l
X`WS&!C<
#include <iostream> Jj=N+,km
#include <gtkmm/main.h> U/s
Z1u-
#include <gtkmm/button.h> h4 9q(085V
#include <gtkmm/window.h> eWex/ m
using namespace std; fiA8W
XxdD)I
class HelloWorld : public Gtk::Window 6Y,&