“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。 Mjvso0zj
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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》。 =]xk-MY"|R
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以下是用不同语言写成的Hello World程序的几个例子: >(6\ C
Ada rnhf(K.{3
with Ada.Text_Io; use Ada.Text_Io; ~\}EROb<
procedure Hello is Q
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begin c3!|h1h/v
Put_Line ("Hello, world!"); 'sQO0611S
end Hello; pH:|G
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qf=[*ZY
汇编语言 pVa|o&,
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x86 CPU,DOS,TASM fh)`kZDk
MODEL SMALL n03SXaU~V
IDEAL g5 |\G%dOt
STACK 100H #DRtMrfat
2P=~3g*
DATASEG ; F(01
HW DB 'Hello, world!$' u
R%R]X
}0nB'0|y
CODESEG _r5Ild@n
MOV AX, @data (@o
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MOV DS, AX nJ#@W b@
MOV DX, OFFSET HW E0Y/N?
MOV AH, 09H h_G7T1;L
INT 21H (dipKs?K
MOV AX, 4C00H ,h`D(,?X
INT 21H [}>6n72gNh
END VdOd:w
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>~>[}d;glw
x86 CPU,GNU/Linux,NASM jTgh+j]AP
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). n rB27
;Enter this into "hello.asm" then type: RF2XJJ
;"nasm -f elf hello.asm" _r|ytQ)
;"ld hello.o -o hello" Xl+a@Ggtq
;"./hello" BrcXn@tl
BXv)zE=j
section .data ;data section declaration 6ch[B`[h,
msg db 'Hello World!',0AH QIV~)`;
len equ $-msg ;string length ~JPzjE
{=4:Tgw
section .text ;code section declaration
q8bS@\i
global _start ;entry point (start of execution) 4KSN;G
_start: mov edx,len ;string length y]Tn#4 ,/
mov ecx,msg ;string start c@B%`6kF
mov ebx,1 ;file handle: stdout RcM0VbR"EU
mov eax,4 ;sys_write vm^# aoDB
int 80h ;kernel system call B@v H1T
*AQbXw]w
mov ebx,0 ;return value P1 >X5:
mov eax,1 ;sys_exit CPeK0(7Zh
int 80h ;kernel system call I3$vw7}5Y
WA\f`SRF
Z_~DTO2Qg
x86 CPU,Windows,MASM32 FEmlC,%
.386 CscJy0dB
.model flat,stdcall 2^M+s\p
option casemap:none k$_]b0D{4
;Include 文件定义 TC#B^m`'p
include windows.inc 2U+p@}cQUA
include user32.inc Ol[IC
includelib user32.lib <!(n5y_
include kernel32.inc #}yFHM?i
includelib kernel32.lib 7 ~8Fs@
;数据段 u.Yb#?
.data X*"O'XCA
szCaption db 'A MessageBox!',0 bd*(]S9d
szText db 'Hello,world!',0 L/LNX{|
;代码段
l>?vjy65
.code
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start: }B/xQsTx-
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK {*$J&{6V
invoke ExitProcess,NULL j5^b~F%
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> M':.b+xN
end start ZSt
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!I/kz }N@
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AWK ve^MqW&S
BEGIN { print "Hello, world!" } 'oL[rO~j
Li^!OHro.
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b
BASIC o:\a
传统版BASIC(例如GWBASIC): O^%ace1
/k"P4\P`+Q
10 PRINT "Hello, world!" %~2m$#)
20 END ^v|!(h\ZC
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或在提示符输入: x,_Ucc.
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?"Hello, world!":END 5&@ U T
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现代版BASIC(例如Quick BASIC): 2Hwf:S'
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Print "Hello, world!" #8OqX*/
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以下的语句在Quick BASIC中同样有效: Oh4WYDyT
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? "Hello,world!" 7Z3qaXPH
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c?",kzo
BCPL Ec
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GET "LIBHDR" o2jB~}VMl
'=* 5C{
LET START () BE =oDrN7`,B
$(
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WRITES ("Hello, world!*N") -h`0v
$) .&.CbE8K[
>E=a~ O
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Befunge 9V\`{(R
"!dlrow olleH">v P'~3WL4MKs
, {HnOUc\4
^_@ `BD`pa7.%
7SZs/wWh%
z\
pT+9&
Brainfuck sTyGi1
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< /^G+vhlf\
+++++++++++++++.>.+++.------.--------.>+.>. $7YLU{0
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b] V=wZ
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C _*I6O$/>
#include <stdio.h> ^O
m]B;
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int main(void) nQ~L.V
{ 3om-,gfZ
printf("Hello, world!\n"); S:QEHd_C
return 0; R FiR)G ,
} |-D.
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2fB@zF
C++ S5TT
#include <iostream> LL+rdxJO^
/]&1 XT?
int main() (p!AX<=z
{ Yl])Q|2I
std::cout << "Hello, world!" << std::endl; tm?
return 0; iX p8u**
} ]S ,GHPEN
`^vD4qD|
:Ej)AfS
C++/CLI EMbsKG
int main() C:{'0m*jKs
{ c 3dZ1v
System::Console::WriteLine("Hello, world!"); +i =78
} |\t_I~de
0=&]!WRT
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C# (C Sharp) I|H mbTXa
class HelloWorldApp e>.xXg6Zn
{ 5H5Kt9DoW
public static void Main() ]3'd/v@fT
{ s2WB4Uk
System.Console.WriteLine("Hello, world!"); ps{(UYM=b
} qc F{Kex"
} GkFNLM5'
V-3]h
ba,
d+'+z %s%
COBOL }kDrUnBk
IDENTIFICATION DIVISION. [f}1wZ*
PROGRAM-ID. HELLO-WORLD. 04t_
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ENVIRONMENT DIVISION. S\m]z e
D=Y HJ>-wB
DATA DIVISION. /([aD~.
x;Q2/YZ#
PROCEDURE DIVISION. oP6G2@3P/
DISPLAY "Hello, world!". hlZjk0ez
STOP RUN. J4i0+u
9HP--Z=
H@:@zD!G[
Common Lisp ]\U'_G2]
(format t "Hello world!~%") \Wk$>?+#@
aXagiz\;
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DOS批处理 -j,o:ng0
@echo off }1wuH
echo "Hello, world!" I_rVeMw=
VbYapPu4b!
_?"J.i
Eiffel _G|6xlO
class HELLO_WORLD XQA2uR4h
tJP(eaqZ
creation y(A"g3^=
make j3><J
feature LmE-&
make is A5b}G
local p:jrqjLp
io:BASIC_IO mfvQ]tz_+
do x@=7M'vr%
!!io jI%yi-<;
io.put_string("%N Hello, world!") T$e_ao|
end -- make I
f(_$>
end -- class HELLO_WORLD uu>g(q?4II
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*bx cq
Erlang .z"[z^/uF
-module(hello). 8
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-export([hello_world/0]). XN@5TZoaW
4/4IZfznX
hello_world() -> io:fwrite("Hello, World!\n"). 6FE[snw
tdm /U
*))|ZE6jI
Forth M<nn+vy`
." Hello, world!" CR ~xCy(dL^}
Sa0\93oa
0Ju{6x(|
Fortran @WmB0cc_
WRITE(*,10) JpDkf$kM
10 FORMAT('Hello, World!') ! [X<>
STOP `xSXGI
END 0/Csc\Xl
cQny)2k*x
I
zT%Kq
HTML k8TMdWW
<HTML> ~VKw%WK
<HEAD> `PL!>oa(8
<TITLE> Hello World! </TITLE> QS_u<B
</HEAD> "O4Z).5q3
<BODY> JF7T1T
<p>Hello World!</p> +vP1DXtj(
</BODY> w%ForDB>P
</HTML> epnDvz\
O
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]q j%6tz
HQ9+ <Wd$6
H }\W3a_,v)
7>nA;F
8_
}Y[.h=X
INTERCAL "elh~K
PLEASE DO ,1 <- #13 vv u((b
DO ,1 SUB #1 <- #238 {9)f~EbM!
DO ,1 SUB #2 <- #112 &Wba2fD
DO ,1 SUB #3 <- #112 D|xSO~M5
DO ,1 SUB #4 <- #0 pnD#RvmW2e
DO ,1 SUB #5 <- #64 G`pI{_-e
DO ,1 SUB #6 <- #238 46vz=# ,6L
DO ,1 SUB #7 <- #26 0ode&dB
DO ,1 SUB #8 <- #248 Ul=`]@]]
DO ,1 SUB #9 <- #168 Abl=Ev
DO ,1 SUB #10 <- #24 B 5?(gb"
DO ,1 SUB #11 <- #16 ]OVjq?
DO ,1 SUB #12 <- #158 &"BKue~q@p
DO ,1 SUB #13 <- #52 ,FTF@h-Cs
PLEASE READ OUT ,1 */1z=
PLEASE GIVE UP |^1eL I
jkbz8.K
'D1@+FFU0
Java X#J[Nn>
public class Hello eRGip2^cq+
{ cX*^PSM
public static void main(String[] args) u^ T2
{ T:si?7CR
System.out.println("Hello, world!"); 0<Y)yNsV
} +,smjg:O
} ' o5,P/6
/ZczfM\
*"#>Ov>
JSP GB-=DC6
<% lY~xoHT;[
out.print("Hello, world!"); aAX 8m
%> t~Uqsa>n@'
+h
=lAHn&
{DpZg",H-
MIXAL i_MDLS>-
TERM EQU 19 the MIX console device number p\(%bO
ORIG 1000 start address QKVZ![Y!s
START OUT MSG(TERM) output data at address MSG u+Li'Ug
HLT halt execution d.{RZq2cp
MSG ALF "MIXAL" 1:,aFp>qr
ALF " HELL" wj/r)rv
E
ALF "O WOR" tDi<n}
ALF "LD " ?Z;knX\?J
END START end of the program DzYno-]A]
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s~GO-v7
Nuva ON=xn|b4
<..直接输出..> MZ{)`7acR\
Hello, world! _uRgKoiy
W4Eo1 E
<..或者..> SO}Hc;Q1`
+%FGti$[
<. lVqvS/_k$
// 不带换行 kJ~^
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? "Hello, world!" MOj 0"x)
Gm*i='f!?
// 或者 sI~{it#
KB-7]H
// 带换行 VQX#P<
?? 'Hello, world!' 6OVAsmE
.> #Zfg
QutQG
rtY0?
OCaml n&@\[,B
let main () = Gs-'
print_endline "Hello world!";; \
X uu|]
j88H3bi0
8zr)oQ:
Pascal LaLA}1!
program Hello; 9m<>G3Jr
begin )2\6Fy0S
writeln('Hello, world!'); N 4Dyec\
end. *iYs,4
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[u~#F,_ow
Perl 6N]v9uXZ
#!/usr/local/bin/perl #w#B'
print "Hello, world!\n"; ,cpPXcz ?,
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C7PHZ`<
PHP Ua(!:5q?
<?php }4+S_b
print("Hello, world!"); 1MOQ/N2BR
?> rNZN}g
J7S
+f|u5c
Pike +`\C_i-
#!/usr/local/bin/pike 8on2BC2
int main() p7|~x@q+
{ 7:;P>sF@
write("Hello, world!\n"); Pg5 1}{
return 0; m%m8002
} H]YPMG<
]{dg"J
P E.^!j
PL/I " >;},$
Test: procedure options(main); DUa`8cE}
declare My_String char(20) varying initialize('Hello, world!'); 2TY|)ltsF
put skip list(My_String); K47W7zR
end Test; j5tA!o
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kIM* K%L}
Prolog #Ey!?Z
goal 7j{SCE;
write("hello,world!"). J}lBKP:-*
.|cQ0:B[
7+@:wX\
Python ^cd+W?
#!/usr/local/bin/python ~^Gk7
print "Hello, world!" @TsOc0?-
}F**!%4d
*YYm;J'
REXX Q-(twh
say "Hello, world!" Pr/K5aJeg
p ^T0(\1
$--W,ov5j
Ruby Hb IRE
#!/usr/bin/ruby K6_{AuL}4
print "Hello, world!\n" %J7 ;b<}To
H7*/
H<g-
Bhv
Scheme Ql!$e&A|l
(display "Hello, world!") K@`F*^A}V
(newline) |5`z;u7V
b?qtTce
\,lgv
sed (需要至少一行输入) ;L++H5Kz6
sed -ne '1s/.*/Hello, world!/p' Kp8!^os
W|;
.G9
vY:A7yGW
Smalltalk h9RG?r1
Transcript show: 'Hello, world!' O0c#-K.f
oj[Wzeg%
a";(C,:0
SNOBOL &.;t dT7
OUTPUT = "Hello, world!" A)&OR]0[
END b$H{|[
1]m]b4]
M+9G^o)u
SQL o%5^dX&[
create table MESSAGE (TEXT char(15)); 2t*@P"e!
insert into MESSAGE (TEXT) values ('Hello, world!'); do C8!
select TEXT from MESSAGE; >kd&>)9v
drop table MESSAGE; O8r9&Nv
H5{d;L1[
SX$v&L<
Tcl c{7!:hi`x
#!/usr/local/bin/tcl %5NfF65'
puts "Hello, world!" {w1sv=$+
j[v<xo
>y
&9!G
TScript k7W7S`H
? "Hello, world!" X~G!{TT_x6
&%$r3ePwc
2mWW0txil
Turing `)/G5 fB
put "Hello, world!" m
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"N4!
0Ou`&u
?n8gB7(FA
UNIX-style shell ;gu_/[P
程序中的/bin/sh可改为您使用的shell "(>P=
$RfM}!7?
#!/bin/sh XL1v&'HLV
echo 'Hello, world!' swntz
5\A[ra
{Ug?k<h7|
GUI ^duNEu0*
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Delphi 4jfkCU
program HelloWorld; 6V
KsX+sd
uses Uo#%f+t
Dialogs; _ko16wfg
begin +'Ec)7m
ShowMessage('Hello, World!'); }E+#*R3auB
end. K1AI:$H
G>qzAgA
qCi6kEr
Nuva %(79;#2`
<. 2j+v\pjYC
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) }Zu>?U
.> @2yi%_]h
sk.<|-(o
|[7xTD
Visual Basic >gtKyn]
MsgBox "Hello, world!" T\55uQ
'或者 bwR24>8lP
Print "Hello, world!" hz\Fq1
V\^3I7F
WLma)L`L
Visual FoxPro 9
,=7Uh#7
? "Hello, world!" -{dsl|Dl
`9}\kn-</8
N:[22`NP
X11 T0J"Wr>WY
用一个程序 M.iR5Uh
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xmessage 'Hello, world!' dlsVE~_G
Hr |De8#f
用C++和gtkmm 2 k>I[U}h
9=p^E# d
#include <iostream> })rJU/
#include <gtkmm/main.h> i/N4uq}'A<
#include <gtkmm/button.h> [4KW64%l
#include <gtkmm/window.h> ![YLY&}s
using namespace std; tt2`N3Eu\
{ K'QE0'x
class HelloWorld : public Gtk::Window xL,Lb}){%
{ lS&$86Jo(
public: 'yu M=Pb
HelloWorld(); :_E
q(r
virtual ~HelloWorld(); x2(!r3a
protected: .>NhC"
Gtk::Button m_button; Yj99[
c#]
virtual void on_button_clicked(); P$?3\`U;
}; 20h|e+3
(=cR;\s<
HelloWorld::HelloWorld() : m_button("Hello, world!") +`O8cHx
{ xs_l+/cZ
set_border_width(10); zA4m !l*eM
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); BQq,,i8H
add(m_button); bU9B2'%E
m_button.show(); ;gfY_MXnF
} /^v?Q9=Y
#-?pY"N,
HelloWorld::~HelloWorld() {} )xYv$6=
m22M[L(q
void HelloWorld::on_button_clicked() WDc2Qt
{ *&]x-p1m
cout << "Hello, world!" << endl; bI/d(Q%#<
} H7bdL 8/
{-;lcO D
int main (int argc, char *argv[]) C50&SrnBU1
{ lL_M=td8W
Gtk::Main kit(argc, argv); GInU7y904
HelloWorld helloworld; W&