“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。 1|$Rzt%ge
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将Hello World程序作为第一个学写的程序,现在已经成为一种传统。该程序最早出现在由Brian Kernighan和Dennis Ritchie写的计算机程序设计教程《C语言程序设计》。 s~ZC!- [;
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以下是用不同语言写成的Hello World程序的几个例子: B{i;+[ase
Ada uWT&`m_(2
with Ada.Text_Io; use Ada.Text_Io; 4 sgwQ$m)
procedure Hello is u:kY4T+Z
begin k EDZqUD
Put_Line ("Hello, world!"); L|'ME|
'
end Hello; 9&FV=}MO
,TA[el%#
j`pR;XL1[
汇编语言 i*E`<9
ee?ZkU#@
x86 CPU,DOS,TASM %* ;
8m'
MODEL SMALL c|a|z}(/J
IDEAL `lOoT
STACK 100H Xr;noV-X
W3j|%
DATASEG l[0P*(I,
HW DB 'Hello, world!$' 6spk* 8e
u(a&x|WY
CODESEG 6?x{-Zj^?
MOV AX, @data vrDRSc6_
MOV DS, AX W5uI(rS<6
MOV DX, OFFSET HW \<>%_y'/)h
MOV AH, 09H a<36`#N
INT 21H }iloX#
MOV AX, 4C00H .T
X& X
INT 21H oh)l\
END BC[d={_-
pU'sADC
^( VB5p
x86 CPU,GNU/Linux,NASM
aj B
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). ',%&DA2
;Enter this into "hello.asm" then type: $yK!Q)e:
;"nasm -f elf hello.asm" p~co!d.q/}
;"ld hello.o -o hello" d9( Sj?
;"./hello" 4>#^Pk?Ra
0)44*T
section .data ;data section declaration 3]'z8i({7Y
msg db 'Hello World!',0AH iROM?/$
len equ $-msg ;string length dEL"(e#0s4
9Q1GV>j>B
section .text ;code section declaration YTit=4|
global _start ;entry point (start of execution) _x{x#d;L3
_start: mov edx,len ;string length +yI^<BH
mov ecx,msg ;string start 8PS:yBkA|
mov ebx,1 ;file handle: stdout O+J;Hp;\_
mov eax,4 ;sys_write }O{"qs#)
int 80h ;kernel system call PSE|4{'
*xC '
mov ebx,0 ;return value "c*|vE
mov eax,1 ;sys_exit h;M2ylOu.
int 80h ;kernel system call O~xmz!?=
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lB
U1
x86 CPU,Windows,MASM32 qm8RRDG
.386 d2C:3-4
.model flat,stdcall d(Ou\7
option casemap:none UQ~rVUo.c
;Include 文件定义 =h;!# ZC
include windows.inc Q(3x"+
include user32.inc zl?N1>KS
includelib user32.lib E9hWn0 e
include kernel32.inc _O<{H '4NO
includelib kernel32.lib xGA0]
_
;数据段 `pUArqf
.data o7seGw<$X
szCaption db 'A MessageBox!',0 ,;18:
szText db 'Hello,world!',0 ^IYN"yX_
;代码段 w (-n1oSo
.code $)~]4n=
start: L]}|{<3\
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK G9q0E|
invoke ExitProcess,NULL ?J?!%Mw
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> e>)5j1
end start
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,3 lMr
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AWK Yv-uC}e
BEGIN { print "Hello, world!" } k:xV[9ev:
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CcTJCuOS
BASIC i=T/}c)
传统版BASIC(例如GWBASIC): ]FBfh.#X@
c`QsKwa
10 PRINT "Hello, world!" U\{Z{F%8
20 END ENzeVtw0
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或在提示符输入: z wW9>Y
Z}wAh|N-
?"Hello, world!":END VJaL$Wv)H
\zwb> ^
现代版BASIC(例如Quick BASIC): L\[jafb_`
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Print "Hello, world!" th)jEK;Z
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以下的语句在Quick BASIC中同样有效: z-j \S7F
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? "Hello,world!" O.dNhd$
/'(P{O>{j
M{QNpoM
BCPL s>X;m.<
GET "LIBHDR" 10&A3C(E
m.*+0NG
LET START () BE Q~kwUZ
$( u4'Lm+&O
WRITES ("Hello, world!*N") uJ$,e5q
$) ;xc
6eD[)_?]y
4$"Lf'sH6
Befunge PhS"tOGtX
"!dlrow olleH">v dEiX!k$#
, {65X37W
^_@ o6R(BMwGa
^5+-7+-S
d?mdw
?|
Brainfuck j;
C(:6#J
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< ,3j*D+
+++++++++++++++.>.+++.------.--------.>+.>. THJ+OnP
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U PC& O
C K&*FI (a
#include <stdio.h> 1jyWP#M#
r4s R5p]|
int main(void) 8z-Td- R6
{ 83a
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printf("Hello, world!\n"); 9maw+ c!~
return 0; gyK"#-/_d
} K*<n<;W
9=SZL~#CE
[xC
(t]S-
C++ N?XN$hwdZ
#include <iostream> ,]MX&]
mR^D55k
int main() k#.co~kS
{ @&+
1b=
std::cout << "Hello, world!" << std::endl; <3bh-)
return 0; ~"N]%Cu
} 3,?y !
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l)5^7=W
C++/CLI jd{J3s '%
int main() ]~P?
{ @lX)dY
System::Console::WriteLine("Hello, world!"); OL>/FOH:Fx
} '54@-}D
f
{
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X%dOkHarB
C# (C Sharp) 4*3vZ6lhu
class HelloWorldApp #/:[ho{JQ
{ wmIq{CXx,
public static void Main() + |,CIl+
{ ,y.0Cb0
System.Console.WriteLine("Hello, world!"); JnZxP> 2B
} G\ofg
} dw-r}Qioe
F8/@/B
~-6;h.x=
COBOL E(oNS\4
IDENTIFICATION DIVISION. `u U@(
PROGRAM-ID. HELLO-WORLD. Rg6>6.fk*
1pK7EK3R
ENVIRONMENT DIVISION. nxt1Y04,H
cZYX[.oIB
DATA DIVISION. #k6;~
X[w9~t$\
PROCEDURE DIVISION. -zkB`~u_
DISPLAY "Hello, world!". QUNsS9
STOP RUN. Nl+2m4
1/m/Iw@
P(4[<'HO
Common Lisp 4q[r
KNl
(format t "Hello world!~%") 'Zzm'pC
1/n3qJyx2}
s0:1G
-I
DOS批处理 ,d7@*>T&
@echo off +a|4XyN
echo "Hello, world!" 09"~<W8
_RmrjDk
c"~TH.,d
Eiffel W%P&o}'
class HELLO_WORLD ^Ni)gm{?k
+$-a:zx`l
creation *+IUGR
make *M*k-Z':.*
feature ^j`
vk
make is k@2gw]y"
local I#0.72:[
io:BASIC_IO Z-Uq89[HZ
do ^uj+d"a)
!!io `{/=i|6
io.put_string("%N Hello, world!") z23KSPo
end -- make yH`xk%q_
end -- class HELLO_WORLD SXT/9FteZ
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Erlang +)|2$$m
-module(hello). {p-%\nOC
-export([hello_world/0]). KpE#Ye&
YPM>FDxDB
hello_world() -> io:fwrite("Hello, World!\n"). TKE)NIa
2/~v
i ]_fh C
Forth a'\`Mi@rb
." Hello, world!" CR QV't+)uUVo
t@ Jo ?0s
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Fortran 7Ct m({I-
WRITE(*,10) E,r PM
10 FORMAT('Hello, World!') )#Id2b~
STOP UJZa1p@L
END {R#nGsrt;
pM=vW{"I/
2::T, Z
HTML @iaN@`5I6s
<HTML> N>~*Jp2;
<HEAD> fSTEZH
<TITLE> Hello World! </TITLE> nuQ"\ G
</HEAD> ij TtyTC
<BODY> M *}$$Fe|
<p>Hello World!</p> =_XcG!"
</BODY> jfWIPN
</HTML> pZR^ HOq
}'{(rU
4?&=H
*H:
HQ9+ OT [t
EqQ
H K'tz_:d|
-L[K1;Xv"
bw4b'9cK
INTERCAL Ik,w3 }*P*
PLEASE DO ,1 <- #13 @bPJ}C
DO ,1 SUB #1 <- #238 wD<G+Y}
DO ,1 SUB #2 <- #112 o ).pF">jh
DO ,1 SUB #3 <- #112 *rbayH
DO ,1 SUB #4 <- #0 N\0Sq-.
DO ,1 SUB #5 <- #64 k X-AC5]
DO ,1 SUB #6 <- #238 k >MgrtJI
DO ,1 SUB #7 <- #26 H!A^ MI
DO ,1 SUB #8 <- #248 V>%%2"&C
DO ,1 SUB #9 <- #168 "Vh(%N`6
DO ,1 SUB #10 <- #24 LU]~d<i99
DO ,1 SUB #11 <- #16 +]{X-R
DO ,1 SUB #12 <- #158 C
}[u[)
DO ,1 SUB #13 <- #52 EKt-C_)U
PLEASE READ OUT ,1 eDm,8Se
PLEASE GIVE UP ]gEfm~YV
XyI w5
9
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Java <L`R!}
public class Hello NubD2
{ :DD4BY
public static void main(String[] args) [L275]4n!]
{ #4hP_Vhc
System.out.println("Hello, world!"); kju:/kY A
} ,^[s4
=3X?
} Qw^tzP8
SX4p(t
?=vwr,ir
JSP 0uvL,hF
<% sPw(+m*C
out.print("Hello, world!"); jlB3BwG{w
%> spI{d!c
m&\Gz*)3
E,X,RM~
+D
MIXAL p-}:7CXP
TERM EQU 19 the MIX console device number qkEy$[D9
ORIG 1000 start address iaC$K@a{
START OUT MSG(TERM) output data at address MSG RS1oPY
HLT halt execution
3ty){#:
MSG ALF "MIXAL" 9+/|sU\.%
ALF " HELL" 1@ina`!1O
ALF "O WOR" u>E+HxUJ
ALF "LD " &yN<@.
END START end of the program r
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I|M*yObl6
>!2'|y^
Nuva ZQ:Y5ph
<..直接输出..> 7-LeJRB
Hello, world! Ac54VN
pI!55w|
<..或者..> :b=0_<G
bc ZonS
<. ob;oxJ@[c
// 不带换行 %(]rc%ry0
? "Hello, world!" <(^pHv7Q
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// 或者 vfm-K;,#
#7>CLjI
// 带换行
l gC
?? 'Hello, world!' |(V3
.> -bE|FFU
I,[EL{fz
n >Ei1
OCaml d?K8Ygz
let main () = dO@iq^9-
print_endline "Hello world!";; 8a h]D
r:IU+3
OTm`i>rB
Pascal a$GKrc,z
program Hello; cwroG#jGT
begin m|k,8guG
writeln('Hello, world!'); 7Av]f3Zr
end. 4Y2>w
4L0LT>'M\
c"xaN
Perl pIXQ/(h31
#!/usr/local/bin/perl "duJl-
print "Hello, world!\n"; {x:IsQZ
K+\hv~+@
r$7rYxFR
PHP ;1%a:#5
<?php )&9RoW()?
print("Hello, world!"); #59zv=
?> _=MWt_A '3
7Tbk ti;
F)@<ZE
Pike B_S3}g<~
#!/usr/local/bin/pike bo2Od
int main() RB"rx\u7K
{ NO$Nl/XM
write("Hello, world!\n"); #q- _
return 0; UXP;'
} 2KEww3.{
- \QtE}|4
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PL/I krA))cP
Test: procedure options(main); U*@_T 3N
declare My_String char(20) varying initialize('Hello, world!'); 7d)aDc*TjW
put skip list(My_String); *l//r
V?l
end Test; *pMA
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#5D+XB T
=Vs<DO{|4q
Prolog d1-p];&
goal 93\,m+-
write("hello,world!"). >MT)=4
9q
4pqZ!@45|
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Python BP6Shc|C
#!/usr/local/bin/python wOOPWwk
print "Hello, world!" >UMnItq(l
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K="+2]{I
REXX NS q=_8
say "Hello, world!" Mx"tUoU6z
MF`'r#@:wa
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Ruby 0=B5
=qyw
#!/usr/bin/ruby r.^&%D
print "Hello, world!\n" A3_9MO
e?>suIB
R 6Em^A/>
Scheme fm0(
(display "Hello, world!") RHbwq]
(newline) w.f[)
t3G'x1
\4k*Zk
sed (需要至少一行输入) wNZ7(W.U
sed -ne '1s/.*/Hello, world!/p' JyO lVs<T
7%"7Rb^@
sXxO{aeev
Smalltalk 6K}=K?3Z
Transcript show: 'Hello, world!' K}BX6dA
w C"%b#(}
S41>VbtEp
SNOBOL P{18crC[1
OUTPUT = "Hello, world!" DF2&j!
END T#7^6Ks+1
4)I#[&f
ub5hX{uT
SQL u#~!%~
create table MESSAGE (TEXT char(15)); E6M: ^p*<
insert into MESSAGE (TEXT) values ('Hello, world!'); "Ycd$`{Vgt
select TEXT from MESSAGE; gN~y6c:N
drop table MESSAGE; \<**SSN
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$-d^ZJ
#1@~w}Dh
Tcl |m- `,
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#!/usr/local/bin/tcl 0h4}RmS
puts "Hello, world!" PBtU4)
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"~C#DZwt{
TScript bq-\'h
f<
? "Hello, world!" *(B[J
om?CFl
u^%')Ncp
Turing %PbqASm
put "Hello, world!" 3ohcHQ/a
( y*X8
!#1A7[WN
UNIX-style shell 30+l0\1
程序中的/bin/sh可改为您使用的shell vfJk?
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:
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#!/bin/sh 9PK-r;2
echo 'Hello, world!' \/'n[3x
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GUI MmH_gR
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Delphi K/v-P <g
program HelloWorld; 1Z8Oh_DC
uses 9Pk3}f)a
Dialogs; i03}f%JnuO
begin ^jjJM| a
ShowMessage('Hello, World!'); E:=KH\2f
end. )+4}Ix/q
O) %kl
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Nuva cjC6\.+l3
<. l~TIFmHkh%
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) Gj8[*3d
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vr;Br-8
Ja=70ZI^6
Visual Basic umZ
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MsgBox "Hello, world!" *jw$d8q2
'或者 $1zeY6O
Print "Hello, world!" 'O2#1SWe
Q;ZHx.ye{
V,"iMo
Visual FoxPro 3(})uV
? "Hello, world!" ivz?-X4]
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ec4%Wk2
X11 ]!G>8Rc
用一个程序 <` j[;>O
2vdQ&H4
xmessage 'Hello, world!' *a,.E6C*
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用C++和gtkmm 2 = #2qX>?
^}/
E~Sg7\
#include <iostream> C=aj&
#include <gtkmm/main.h> NwlRPyt
#include <gtkmm/button.h> *R\/#Y|
#include <gtkmm/window.h> xT?} wF
using namespace std; \.;ct
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class HelloWorld : public Gtk::Window Z F yX@#B9
{ PT@e),{~o9
public: ph12x: @B
HelloWorld(); q\'P1~
virtual ~HelloWorld(); \P~rg~
protected: T~~[a|bLa
Gtk::Button m_button; z5&%T}$tJ
virtual void on_button_clicked(); g;#KBxE
};
2C33;?M
M|5]#2J_2
HelloWorld::HelloWorld() : m_button("Hello, world!") "K+N f
{ vgA!?P3
set_border_width(10); fZV8o$V
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); 7|M $W(P
add(m_button); Z:lB:U'o
m_button.show(); AK
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} )Z8"uRTb0
opcR~tg@r
HelloWorld::~HelloWorld() {} DPS1GO*
J={OOj
void HelloWorld::on_button_clicked() H")N_BB
{ 9p\Hx#^
cout << "Hello, world!" << endl; ZCE%38E N
} F'>GN}n
a j@C0
int main (int argc, char *argv[]) T5dUJR2k$
{ Ih-3t*L
Gtk::Main kit(argc, argv); =SK+\j$
HelloWorld helloworld; ^M(`/1 :
Gtk::Main::run(helloworld); :
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} T7lj39pJq
n:*_uc^C
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Java 2 ]DCF
import java.awt.*; 7Z`Mt9:Ht
import java.awt.event.*; N[bRp
%%+mWz a
public class HelloFrame extends Frame IglJEH[+
{ [Zt#
c C+
HelloFrame(String title) &J;H@d||
{ Cb
)= n6
super(title); Ck3QrfM
} ?zhI=1ED%
public void paint(Graphics g) 3Zaq#uA
{ x7KcO0F{
super.paint(g); E)80S.V
java.awt.Insets ins = this.getInsets(); qb-2QPEB
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); o!s%h!%L
} $d2kHT
public static void main(String args []) yxG:\y
b
{ lRv#1'Y
HelloFrame fr = new HelloFrame("Hello"); X"TUe>cM
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