“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。 3Q!J9t5dc
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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》。 +ia(%[
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以下是用不同语言写成的Hello World程序的几个例子: Fv7%TK{oe
Ada ou,=MpXx*
with Ada.Text_Io; use Ada.Text_Io; 8y4D9_{
procedure Hello is -'p@ lk
begin *?R\[59
Put_Line ("Hello, world!"); !=h|&Vta
end Hello; ma]F%E+$
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8.;';[
汇编语言 lu@>?,<
SJ WP8+
x86 CPU,DOS,TASM 'Kso@St`o
MODEL SMALL E23 Yk?"
IDEAL >fZ/09&3
STACK 100H \w0b"p
wMPw/a;
DATASEG /Vm}+"BCS
HW DB 'Hello, world!$' (Q+:N;
BHJ'[{U*w
CODESEG 7)(`
MOV AX, @data V^$rH<
MOV DS, AX v(Zi;?c
MOV DX, OFFSET HW AZ9\>U@hD
MOV AH, 09H %3l;bR>
INT 21H ^Mvsq)
MOV AX, 4C00H C +?@iMh
INT 21H D8D!1 6_
END eDM0417O(
";S*[d.2tA
=`\,2Nb
x86 CPU,GNU/Linux,NASM @y\{<X.F\1
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). vo( j@+dz
;Enter this into "hello.asm" then type: ?lwQne8/
;"nasm -f elf hello.asm" moJT8tb
;"ld hello.o -o hello" y'2kV6TtqD
;"./hello" M6hvi(!X2
:@@A
section .data ;data section declaration 1-NX>E5
msg db 'Hello World!',0AH dj'8x48H2W
len equ $-msg ;string length l;Wy,?p
,<P[CUD&&
section .text ;code section declaration *A1TDc$
global _start ;entry point (start of execution) }jY[| >z
_start: mov edx,len ;string length 72`/xryY
mov ecx,msg ;string start k'I_,Z<,
mov ebx,1 ;file handle: stdout % 6hw
mov eax,4 ;sys_write L5 k>;|SA
int 80h ;kernel system call (8-lDoW
0-~6}
r$
mov ebx,0 ;return value `7qp\vYL
mov eax,1 ;sys_exit r?yJ
int 80h ;kernel system call ;Y|~!%2~
5fx,rtY2sQ
> v!c\
x86 CPU,Windows,MASM32 6[2?m*BsN
.386 {|J2clL
.model flat,stdcall }
Ved
option casemap:none o(>-:l i0
;Include 文件定义 JTh=JHJ
include windows.inc z vylL
M
include user32.inc -^jLU
FC
includelib user32.lib 1DlcO>#@
include kernel32.inc ?6YUb;
includelib kernel32.lib 'iISbOM
;数据段 *JC{G^|Y
.data C.B}Py+
szCaption db 'A MessageBox!',0 'GzhZ`E6
szText db 'Hello,world!',0 L,A-G"z0Z
;代码段 6L> "m0
.code
pOI`,i}.
start: 6p=x gk-q
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK u r.T YKF
invoke ExitProcess,NULL y"
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;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ;1g-z]
end start +j: Ld(
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YG1`%,OW`
AWK 3&nc'
BEGIN { print "Hello, world!" } rUpAiZfz >
L%O8vn^3
Fx99"3`3
BASIC ^\kHEM|5v
传统版BASIC(例如GWBASIC): (`y|AOs
#M^Yh?~%w
10 PRINT "Hello, world!" ;6 qdOD6
20 END s>``-
]3
= 4WZr
或在提示符输入: 2d;xAX ]
"X(=
?"Hello, world!":END !@Vp Bl
-zLI!F 0
现代版BASIC(例如Quick BASIC): ZFuJ2 :
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Print "Hello, world!" |wb(rua
?| LB:8
以下的语句在Quick BASIC中同样有效: y'O{8Q8T
8U:dgXz
? "Hello,world!" t{s*3k/
UG'U
D"
JR<-'
BCPL .d!*<`S|
GET "LIBHDR" n9/0W%X>
<.(/#=2
LET START () BE z slEUTj)
$( 1HWJxV"
WRITES ("Hello, world!*N") j4SGA#;v
$) Bt7v[Ot
A^@ <+?
L.:QI<n
Befunge LqsJHG
"!dlrow olleH">v ^r
:A^q
, !gew;Jz
^_@ N&h!14]{Z
/cen#pb
1`_)%Y[ZJ
Brainfuck RZh)0S>J
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 4bzn^
+++++++++++++++.>.+++.------.--------.>+.>. 4"(zi5`e
O Lup`~
"s<lLgi
C []3}(8yxGb
#include <stdio.h> v!h-h&p O7
UBHQzc+,
int main(void) GFa/9Bi
{ <slq1
printf("Hello, world!\n"); Tn-]0hWkP
return 0; ]]o[fqD-Zn
} >D4Ez
eniR}
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C++ =?Md&%j
#include <iostream> I8]NY !'cW
'0$[Ujc
int main() }F`2$Q+CW
{ [gp:nxyfQm
std::cout << "Hello, world!" << std::endl; iQ"F`C
return 0; i O|,,;_
} 5w{pX1z1
A;x^6>
oz-I/g3go
C++/CLI :=eUNH
int main() ucP MT0k
{ &it/@8yH
System::Console::WriteLine("Hello, world!"); ,6Q-k4_
} l*H"]6cXRL
g9Gy3zk=
r$Qh`[<
C# (C Sharp) K)\gbQ|
class HelloWorldApp r['C.S6
{ <XrGr5=BV
public static void Main() AK?j1Pk
{ p=gUcO8
System.Console.WriteLine("Hello, world!"); 7zZ|=W?&{
} l8Qi^<i/
} Y<fXuj|&
g"?D>}@=
|UO;StF
COBOL ta.,4R&K
IDENTIFICATION DIVISION. F]#fl%
PROGRAM-ID. HELLO-WORLD. 82!GM.b
):ZumG#o
ENVIRONMENT DIVISION. }l!_m.#e
Z@/5~p
DATA DIVISION. !r0P\
r/L]uSN
PROCEDURE DIVISION. &:K? -ac
DISPLAY "Hello, world!". *7ro [
STOP RUN. ?}
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JhIK$Ti
p;=(-4\V}
Common Lisp 4:g:$s|SE[
(format t "Hello world!~%") %]oLEmn}y
w/6@R 4)p
hAyPaS #
DOS批处理 {U-EBXV
@echo off Mu%,@?zM^/
echo "Hello, world!" VW`=9T5%@
*G41%uz
F
&}V65
Eiffel ~U+'3.Wo
class HELLO_WORLD s9Z2EjQV
8:fiO|~%
creation >;W(Jb7e
make mDfWR
feature 6E]rxps}"
make is zAUfd[g
local ".D +#
2Kl
io:BASIC_IO j~q`xv+R
do Mwc3@
!!io D/UGN+
io.put_string("%N Hello, world!") _I4sy=tYXK
end -- make Dx'e+Bm
end -- class HELLO_WORLD dxWw%_Q
'v
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JvaaBXkS\
Erlang a"aV&t
-module(hello). l:f
sZO4
-export([hello_world/0]). ayp}TYh*
cyNLeg+O*
hello_world() -> io:fwrite("Hello, World!\n"). Q2?qvNZ
Q~_x%KN/`
4/>={4Y9
Forth <=M }[
." Hello, world!" CR _s8_i6 Y
6u7wfAf
lZ_k307
Fortran */E{s?
WRITE(*,10) n\Ixv
10 FORMAT('Hello, World!') ||aU>Wj4
STOP `0:@`)&g1
END 9lV'3UG-?
4PQWdPv;
7!%"8Rl-
HTML f
lB2gr^
<HTML> .SN]hLV5
<HEAD> T1=M6iJ
<TITLE> Hello World! </TITLE> X2v'9 x
</HEAD> z?,5v`,t2
<BODY> <bI,y_<K
<p>Hello World!</p> |e&Kg~~C
</BODY> ]XU#i#;c
</HTML> [_n|n"M
4>* `26
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HQ9+ 4+Y5u4`t
H W6Pg:Il7
J?'!8,RX
X)m2{@v D
INTERCAL }R$%MU5::
PLEASE DO ,1 <- #13 plfB}p
DO ,1 SUB #1 <- #238 I2'?~Lt
DO ,1 SUB #2 <- #112 $hio(
DO ,1 SUB #3 <- #112 mz1g8M`@[D
DO ,1 SUB #4 <- #0 T*m21<
DO ,1 SUB #5 <- #64 p<4':s;*
DO ,1 SUB #6 <- #238 ~vmY2h\
DO ,1 SUB #7 <- #26 )
|vFrR
DO ,1 SUB #8 <- #248 soF ^G21N
DO ,1 SUB #9 <- #168 g 7X>i:
DO ,1 SUB #10 <- #24 |:z%7J3wP
DO ,1 SUB #11 <- #16 Yo:&\a K[
DO ,1 SUB #12 <- #158 tPsU7bFk
DO ,1 SUB #13 <- #52 odDt.gQXU
PLEASE READ OUT ,1 DxHeZQ"LL
PLEASE GIVE UP 7f>n`nq?
rtm28|0H'
4hIC&W~f
Java t
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public class Hello kWFR(J&R
{ Lrq&k40y
public static void main(String[] args) V
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{ o;fQ,rP%
System.out.println("Hello, world!"); ^-ZqS
} o/R-1\Dn
} Wm 61
s/V[tEC*z
t&_lpffv
JSP ^^#A9AM
<% vs~*=d27Pf
out.print("Hello, world!"); Vs
>1%$If
%> i^#RiCeo
UWI5/R
=E}/Z
MIXAL _EP}el
TERM EQU 19 the MIX console device number I$$!YMm.N
ORIG 1000 start address i+}M#Y-O
START OUT MSG(TERM) output data at address MSG ("Zi,3"+
HLT halt execution -IE;5f#e
MSG ALF "MIXAL" d9s"y?8
ALF " HELL" _
0-YsD
ALF "O WOR" tBrVg<]t
ALF "LD " F~EriO
END START end of the program k.%F!sK
m`Z4#_s2
8Xr"4;}f+
Nuva C}CX n X
<..直接输出..> R##O9BSI8Z
Hello, world! y03l_E,
F>OYZOC]
<..或者..> 7DDot_qb
kDsUKO
p
<. #]rw@c
// 不带换行 Ab`G b
? "Hello, world!" 9 wc=B(a|
~F WmT(S
// 或者 y^ohns5{
AWw'pgTQX
// 带换行 Lxl?6wZ
?? 'Hello, world!' (U)=t$=o
.> XIU2l}g
95}"AIi
&A~ 1Q#4
OCaml n}2}4^
let main () = Rzp-Q5@MY
print_endline "Hello world!";; C4y<+G.`
pxgv(:Tw
;k>{I8L~
Pascal FXbNmBXF
program Hello; D3eK!'qS
begin Js'|N%pi
writeln('Hello, world!'); >QYxX<W
end. @I%m}>4Jm
b+kb7
X:YxsZQ5Y
Perl Z=#!FZ{
#!/usr/local/bin/perl "QMHY\C
print "Hello, world!\n"; ^VA)vLj@
_Q QO&0Z
=&vV$UtV
PHP YPN|qn(
<?php `|gCbs95
print("Hello, world!"); %lujme
?> BzDS
Q,scjt[
k
v b"n}
Pike akR*|iK#b
#!/usr/local/bin/pike W*P/~U=
int main() ,\VNs'j
{ 3 Tt8#B
write("Hello, world!\n"); .NjOaK)\
return 0;
'{),gV.
} Xs4`bbap
5z0SjQ
by-B).7
PL/I b( wiJ&t
Test: procedure options(main); 5'X.Z:
declare My_String char(20) varying initialize('Hello, world!'); rKO[;]_*
put skip list(My_String); ^+-i7`|=
end Test; &Oe,$%{hBh
1&U U6| X
VQ+Xh
Prolog %.]qkGZe#
goal ~GZ(Ou-&
write("hello,world!"). =h4XsV)rO
&",pPuq
OfPWqNpO
Python %GJ,&b|
#!/usr/local/bin/python ?]:3`;h3
print "Hello, world!" By"
=]|Q
}_K7}] 1
l/Sb JrM*
REXX Kpg]b"9.R
say "Hello, world!" |@Bl?Bs+
'En 6h" {
t'^/}=c-
Ruby 1D 6iJ
#!/usr/bin/ruby Z O&5C6qa
print "Hello, world!\n" =YR/|9(
9\V^q9l
}yUZ(k#
Scheme b*7OIN5h
(display "Hello, world!") =^NR(:SaaU
(newline) nT:ZSJWM
O0e6I&u:
SwLul4V
sed (需要至少一行输入) KATt9ox@
sed -ne '1s/.*/Hello, world!/p'
TwY]c<t
4~D?F'o
QDs]{F#
Smalltalk ^ [2A<
g
Transcript show: 'Hello, world!' k5(@n>p
TC'tui
Po% V%~
SNOBOL _L9`bzZj
OUTPUT = "Hello, world!" Ue!
&Vm
END ;:f.a(~c
;8H
m#p7,
Tw=Jc 's
SQL %6L{Z *(
create table MESSAGE (TEXT char(15)); ,'[0tl}8K
insert into MESSAGE (TEXT) values ('Hello, world!'); OQA}+XO
select TEXT from MESSAGE; Fe}Dnv)}Z
drop table MESSAGE; !M6*A1g5
S-GcH
h>9GfF3
Tcl XB
zcbS+
#!/usr/local/bin/tcl .cjSgK1
puts "Hello, world!" z.--"cF
Ov h[qm?Z
\IIR2Xf,K
TScript I!~5.
? "Hello, world!" k68\ _ NUL
-b8Vz}Y
ckS.j)@.c
Turing -m3O\X
put "Hello, world!" V^[o{'+
hIE$u t +
oIN!3
UNIX-style shell
\}Z5}~S
程序中的/bin/sh可改为您使用的shell IZ/+RO n
[td)v,
#!/bin/sh QOB>TvE
echo 'Hello, world!' h@&&.S`B
h${+{1](6
f.4r'^
GUI 2Gd.B/L6
L TzD\C'
Delphi vWc =^tT
program HelloWorld; )l~:Puvh
uses akoK4!z
Dialogs; 1:(qoA:
begin k?ZtRhPu3X
ShowMessage('Hello, World!'); =Q>'?w>
end. x4Q*~,n
9KkxUEkW
Dyyf%'\M
Nuva Wxx?iW ,
<. {26/SY
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) j#hFx+S
.> gMS-mkZ
3 -Nwg9U
Gm~jC <
Visual Basic ErnjIx:
MsgBox "Hello, world!" V.?N29CA|
'或者 |uf{:U)
Print "Hello, world!" xM"k qRZ
pUi|&F K">
2dg+R)%
Visual FoxPro 'B>fRN
? "Hello, world!" LlKvi_z
ji9 (!G
"^Y)&