“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。 +eZR._&0
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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》。 tEf_XBjKV
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以下是用不同语言写成的Hello World程序的几个例子: +n %uIv
Ada m\__Fl
with Ada.Text_Io; use Ada.Text_Io; B9/x?Jv1
procedure Hello is '%yWz)P
begin *
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Put_Line ("Hello, world!"); } '. l'%
end Hello; #qGfo)
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lf+/
汇编语言 4iBp!k7
"~9 !o"
x86 CPU,DOS,TASM ;WC]Lf<Z^
MODEL SMALL 29
L~SMf
IDEAL 7@$Hua,GY
STACK 100H KcglpKV`
E5UI
DATASEG zy~vw6vu
HW DB 'Hello, world!$' ji="vs=y
~&[Wqn@MZ
CODESEG Aj#CB.y
MOV AX, @data d,CtlWp
MOV DS, AX NQ_H-D\,
MOV DX, OFFSET HW DKAqQ?fS
MOV AH, 09H "D'A7DA
INT 21H ce\]o^4
MOV AX, 4C00H p3`'i
INT 21H b{=2#J-
END 8 qt,sU
iv2did4
"GEJ9_a[
x86 CPU,GNU/Linux,NASM h!?7I=p~#
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). 9Ruj_U
;Enter this into "hello.asm" then type: ;"hED:z6%
;"nasm -f elf hello.asm" +u#;k!B/>
;"ld hello.o -o hello" d_BECx<\
;"./hello" YgNt>4K
^]3Y11sI
section .data ;data section declaration sWP5=t(i+9
msg db 'Hello World!',0AH 5m!FtHvm1
len equ $-msg ;string length Cb7f-Eag
&*B=5W;6^u
section .text ;code section declaration INOw0E[
global _start ;entry point (start of execution) dkt'~
_start: mov edx,len ;string length Mf
Dna>,Y
mov ecx,msg ;string start d>*?C!xE
mov ebx,1 ;file handle: stdout 3,+)3,N
mov eax,4 ;sys_write E%t_17,=j
int 80h ;kernel system call Mdsn"Y V
MU4/arXy
mov ebx,0 ;return value (|I:d!>:U
mov eax,1 ;sys_exit t8DySFT
int 80h ;kernel system call iUJqAi1o
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cf
Q3vC^}Dmr
x86 CPU,Windows,MASM32 uV!Ax*'
.386 L}*:,&Y/
.model flat,stdcall {O9CYP:
option casemap:none 9E4H`[EQ
;Include 文件定义 `=g9Rg/<
include windows.inc wN\%b}pp
include user32.inc Gkv<)}G
includelib user32.lib n#[-1(P
include kernel32.inc k3h,c;
includelib kernel32.lib 2F[smUL
;数据段 1Y:lFGoe
.data wWv")dk3i
szCaption db 'A MessageBox!',0
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szText db 'Hello,world!',0 q{5wx8_U
;代码段 U~n>k<`sr
.code Veo:G{
start: D::$YR
~R
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK RO+B/)~0<
invoke ExitProcess,NULL 19Xc0ez
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> '^)Ve:K-.
end start w?)v#]<-
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@d]I3?`
AWK sgp5b$2T.
BEGIN { print "Hello, world!" } / PDe<p
S
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kwU~kcM
BASIC rxH*h`Xx@
传统版BASIC(例如GWBASIC): eR PmN
p%toD{$
10 PRINT "Hello, world!" 8d|omqe~P
20 END *{8<4CVv
bCr) 3,
或在提示符输入: <NZ^*]
-.-je"E
?"Hello, world!":END ,e{( r0
2\h}6DGx2
现代版BASIC(例如Quick BASIC): .VG$`g"
Oa~|a7 `o
Print "Hello, world!" MG)wVS<d_
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以下的语句在Quick BASIC中同样有效: GxE"q-G
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? "Hello,world!" )nmLgsg
):OGhWq
'2mR;APz
BCPL WBD e`
GET "LIBHDR" F4'g}yOLd
v'nM=
LET START () BE NBHS
$( Y[Jt+p]
WRITES ("Hello, world!*N") Um YReF<<_
$) }#}IR5`=E
M\O6~UFq!
Tap=K|b ]
Befunge g
/D@/AU1u
"!dlrow olleH">v r \+&{EEG
, /+2;".
^_@ &~VWh}=r
sk !92mQ
r2A%.bL#
Brainfuck vH/<!jtI
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 37GJ}%Qs
+++++++++++++++.>.+++.------.--------.>+.>. [5K&J-W
$MD|YW5
RU&,z3LEb
C jY>|>]4X
#include <stdio.h> ?&$??r^i
Ah:!
int main(void) w@RVg*`%7D
{ L".Qf|b*
printf("Hello, world!\n"); td!WgL,m
return 0; , ,1H#;j
} #v!(uuq,
EOJ k7
N!Dc\d=8q]
C++ [<SM*fQ>t
#include <iostream> ^9*FYV
EWuuNf
int main() x xxM
{ _/;k;$gDp
std::cout << "Hello, world!" << std::endl; &'`q&U1x
return 0; :N03$Tvl
} M`IiK+IoU
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"q@OMf
C++/CLI <[{Ty+
int main() ^Q!qJav
{ 3`sM/BoA
System::Console::WriteLine("Hello, world!"); /3|uU
} Z#7T!/28
*:t]|$;E\
46(Vq|
C# (C Sharp) ~5Wr
|qg%{
class HelloWorldApp 'Gwa[ |6i
{ :&D>?{b0
public static void Main() |Y'xtOMX
{ $nN`K*%
System.Console.WriteLine("Hello, world!"); Eq$Q%'5*ua
} 0{M=^96
} ;\(Wz5Ok&J
U-.?+`
p&1IK8i"
COBOL 7oY}=281
IDENTIFICATION DIVISION. klHOAb1
PROGRAM-ID. HELLO-WORLD. APxy%0Q
i!
G^=N
ENVIRONMENT DIVISION. 3&Dln
(I3:u-A
DATA DIVISION. V9xZH5T8^
*o]Q<S>lH
PROCEDURE DIVISION. BLxtS
DISPLAY "Hello, world!". *&p `8:
STOP RUN. +$i-"^
;)Rvk&J5
|k5uVhN
Common Lisp AWlR" p2
(format t "Hello world!~%") [@D+kL*>
WK7=z3mu
Qx,?v|Xg
DOS批处理 V0hC[Ilr
@echo off "0Xa?z8"
echo "Hello, world!" Bi?.w5
cU}j
Whu
l!Q |]-.@
Eiffel ;{b 1'
class HELLO_WORLD $ijWwrh
:@LFNcWE
creation I"awvUP]a[
make TTjj.fq6
feature Y9F78=Q
make is SI_{%~k*B
local M$O}roOa
io:BASIC_IO $<^4G
do ]'Y
vI!r
!!io I!bzvPJ]xc
io.put_string("%N Hello, world!") _Y@'<S.
end -- make PAF2=
end -- class HELLO_WORLD >L$g ;(g
n"B"Aysz
jJ%
*hDZ6t
Erlang f(q^R
-module(hello). S-[]z*
-export([hello_world/0]). w
<zO
q4_&C&7
hello_world() -> io:fwrite("Hello, World!\n"). ,ry2J,IT7
zo66=vE!
[uOW\)`
Forth ,=KJ7zIK?
." Hello, world!" CR B.2F\ub g
wc-H`S|@
;p~@*c'E
Fortran x#yL&+'?Mj
WRITE(*,10) ]9z{
95
10 FORMAT('Hello, World!') S9X~<!]
STOP $^R[t;
END x9r5 ;5TI
n y6-_mA]
*au&ODa
HTML =8OPjcX.V
<HTML> v ?@Ys+V
<HEAD> 8.D$J
<TITLE> Hello World! </TITLE> <Q)6N!Tp^
</HEAD> ,lm.~% }P*
<BODY> :HhLc'1Jw
<p>Hello World!</p> Z[8{V
</BODY> pK O\tkMJ
</HTML> Qg
btb-MSkO
k^gnOU ;
HQ9+ NC::;e
H ;;BQuG
+s&+G![
C/dqCUX:
INTERCAL lPm'>,}Y
PLEASE DO ,1 <- #13 _[h1SAJ
DO ,1 SUB #1 <- #238 Mj5=t:MI
DO ,1 SUB #2 <- #112 Ni IX^&N1
DO ,1 SUB #3 <- #112 m;o \.s
DO ,1 SUB #4 <- #0 *=}$@OS
DO ,1 SUB #5 <- #64 Gad!}dz
DO ,1 SUB #6 <- #238 ^!H8"CdC3
DO ,1 SUB #7 <- #26 pLMki=.Ld
DO ,1 SUB #8 <- #248 '3=[xVnv
DO ,1 SUB #9 <- #168 Uxx=$
DO ,1 SUB #10 <- #24 ]t_AXKd
DO ,1 SUB #11 <- #16 (_-<3)q4
DO ,1 SUB #12 <- #158 'LIJpk3J
DO ,1 SUB #13 <- #52 o PRvd_~
PLEASE READ OUT ,1 reLYtv
PLEASE GIVE UP }_}C ^
>L#&L?#
M$A"<5
Java 1fwCQM
public class Hello 7dI+aJ
{ Sj{z
public static void main(String[] args) 0[}"b(O{
{ Md'd=Y_0
System.out.println("Hello, world!"); 7QL>f5Q
} kV"';a
} ch,<4E/c[R
c:"*MM RC
l){l*~5zl2
JSP 7~TE=t
<% mJ0nyjX^
out.print("Hello, world!"); ?1}1uJMj-
%> OtJYr1:y_
pgT{#[=>
k7)H%31;
MIXAL R{)Sv| +`
TERM EQU 19 the MIX console device number YcE:KRy
ORIG 1000 start address c ;`
START OUT MSG(TERM) output data at address MSG 7}(LO^,A
HLT halt execution oH!sJ&"#_
MSG ALF "MIXAL" 4W}8?&T
ALF " HELL" 4%2QF F@
ALF "O WOR" t`03$&Cx7
ALF "LD " rs2~spN;h
END START end of the program "v4;m\g&:
3nf+imAF
VztalwI
Nuva YMLo~j4J
<..直接输出..> 1eI>Yy>}
Hello, world! ftF?T.dx
OM{-^
<..或者..> h;f5@#F
iyrUY
<. K)$.0S9d
// 不带换行 `ysPEwA|
? "Hello, world!" y!GjC]/
YnuC<y
&p
// 或者 Q?n} ~(%&
CF>k_\/Bj
// 带换行 S(mJ;C
?? 'Hello, world!' Ta?#o
.> 9I=J#Hi|+
>[,Rt"[V
hFuS>Hx
OCaml ov zIJbf
let main () = +pc_KR
print_endline "Hello world!";; O:Bfbna
qrO]t\
j2deb`GD
Pascal 6'395x_.\
program Hello; K+Al8L?K_
begin d|]F^DDuI
writeln('Hello, world!'); ukv
_bw
end. ,XCC#F(d1
R+8+L|\wHv
8dq{.B?
Perl q%
)Y
#!/usr/local/bin/perl o+`W
print "Hello, world!\n"; bP&o]?dN
u-Ct-0
vlIet$k
PHP O\pqZ`E=s
<?php C9x'yBDv
print("Hello, world!"); >>Hsx2M
?> zC!]bWsD
l@4hBq
tc\LK_@$/F
Pike j{>E.F2.
#!/usr/local/bin/pike k!t5>kPSQ
int main() Fp+^`;j
{ uDK`;o'F
write("Hello, world!\n"); &1893#V
return 0; D4G*K*z,w4
} &D[dDUdHs
<%<}];bmFL
I(P|`"
PL/I 2GXAq~h@
Test: procedure options(main); m7z/@b[
declare My_String char(20) varying initialize('Hello, world!'); IK(G%dDw
put skip list(My_String); R}Uvi9?
end Test; &5Ea6j
cQzd0X
9c9-1iS
Prolog vLDMa>
goal JM -Tp!C>
write("hello,world!"). @5\OM#WT~&
>k*QkIyq
|^C?~g
Python M:6H%6eT
#!/usr/local/bin/python -]~U_J]
print "Hello, world!" >pO[S[
je9[S_Z:Y
_a8^AG
REXX )NRY9\H
say "Hello, world!" *:\-:*
c%>t(ce`Tl
heZJ(mR
Ruby jWiZ!dtUZ
#!/usr/bin/ruby ,;;M69c[
x
print "Hello, world!\n" H.XD8qi3W
6#7f^uIK
huWUd)Po%
Scheme /8Bh
(display "Hello, world!") ,~X^8oY
(newline) V!3G\*$?
-WE pBt7*
m@.4Wrv
sed (需要至少一行输入) y&t&'l/m
sed -ne '1s/.*/Hello, world!/p' fC.-* r
4o9#B:N]J
hz<kR@k}
Smalltalk hUSr1jlA
Transcript show: 'Hello, world!' Sq/M
%z5'
ml.l( 6A
iBwl(,)?m2
SNOBOL s#&jE
GBug
OUTPUT = "Hello, world!" kR7IZo"q
END ]2QZ47
o B_c6]K
3%{XJV
SQL ipjl[
create table MESSAGE (TEXT char(15)); LT!.M m
insert into MESSAGE (TEXT) values ('Hello, world!'); -5>K
pgXo\
select TEXT from MESSAGE; K_ Y0;!W
drop table MESSAGE; H&[ CSc
A;1<P5lo
gEIjG
Tcl Cq
!VMl>hP
#!/usr/local/bin/tcl 8II-'%S6q
puts "Hello, world!" -0YS$v%au>
0@C`QW%m
g % q7
TScript 8? W\kf$
? "Hello, world!" !9356) cV
6aK'%K
}EE
Turing #~I%qa"_pa
put "Hello, world!" uKo)iB6D
_jy*`$"q(
,@R~y
UNIX-style shell m0paGG
程序中的/bin/sh可改为您使用的shell .(VxeF(v_k
L7G':oA_`p
#!/bin/sh Itr yiU9
echo 'Hello, world!' ~PHAC@pU
;.V5:,&
KNC!T@O|{#
GUI ;x@9@6_
9x ?" %b
Delphi _Z#yI/5r
program HelloWorld; w?Nvm?_]
uses mJc'oG-
Dialogs; Q
{3"&
begin @'?<92A
ShowMessage('Hello, World!'); _T6WA&;8
end. [`=|^2n?
?:s `}b
zbddn4bW9
Nuva $d:/cN
8E
<.
&e7yX
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) D4}WJMQ7s
.>
%3KWc-
p !AQ
2!~j(_TA
Visual Basic 2etcSU(y>
MsgBox "Hello, world!" &1F)/$,v
'或者 _{_LTy%[
Print "Hello, world!" nFzhj%Pt;
Up`$U~%-
8n?P'iM
Visual FoxPro
4sSQ
nK
? "Hello, world!" !Lb9KDk
Kk!D|NKLC
r444s8Y
X11 J*.Nf)i
用一个程序
kej@,8
.P# c/SQp
xmessage 'Hello, world!' ``1#^ `
P{)HXUVb
用C++和gtkmm 2 5f=e
JDo=x
FxKH?Rl
#include <iostream> wDem
}uO
#include <gtkmm/main.h> 2xni! *T+
#include <gtkmm/button.h> IA&((\YC
#include <gtkmm/window.h> }{ pNasAU
using namespace std; A*n '"+_
TiCp2Rsz
class HelloWorld : public Gtk::Window gA2Il8K
{ .7g^w+W
public: NjdAfgA
HelloWorld(); -J:](p
virtual ~HelloWorld(); @H@&B`K d
protected: ?fnJ`^|-r
Gtk::Button m_button; k>K23(X
virtual void on_button_clicked(); b^y#.V.|k
}; HOsq _)K
lc>nUhj.
HelloWorld::HelloWorld() : m_button("Hello, world!") <gZC78}E
{ AQbbIngo
set_border_width(10); [\V]tpl!
m_button.signal_clicked().connect(SigC::slot(*this, &HelloWorld::on_button_clicked)); .J%}ROm
add(m_button); Zr;.`(>
m_button.show(); TcpD*%wW
} >Hic
tH
_&XT
=SW}
HelloWorld::~HelloWorld() {} lk}R#n$
'iXjt
MX
void HelloWorld::on_button_clicked() Mn7 y@/1
{ wI
#_r_
cout << "Hello, world!" << endl; }qc[ysDK]
} H }uT'
w<J$12
"p+
int main (int argc, char *argv[]) 2(5wFc
{ `2J6Dz"W
Gtk::Main kit(argc, argv); `;hsOfo
HelloWorld helloworld; oE"!
Gtk::Main::run(helloworld); n1y#gC
} Z!G;q}zZ!
GaSk&'n$Y
+TpM7QaL
Java UB .FX
import java.awt.*; h[C!cX
import java.awt.event.*; {h&*H[Z z
yIXM}i:
public class HelloFrame extends Frame ^(N+s?
{ "0`r]5 5d
HelloFrame(String title) k1$|vzMh
{ wx}\0(]Gl
super(title); =(Mv@eA"
} ~)tMR9=wX
public void paint(Graphics g) OrPIvP<w@
{ u`gy1t `
super.paint(g); mXz-#Go(
java.awt.Insets ins = this.getInsets(); $Fc*^8$ryC
g.drawString("Hello, World!", ins.left + 25, ins.top + 25); 42Gr0+Mb
} qoB
public static void main(String args []) O*H:CW
{ MO9}Itg
HelloFrame fr = new HelloFrame("Hello"); xPQO}wKa
0Ny0#;P
fr.addWindowListener( qq[2h~6P]
new WindowAdapter() Tx/
{
Ca@[]-_H
public void windowClosing(WindowEvent e) -R~;E[
{%
{ O7s0M?4
System.exit( 0 ); #T#&qo#
} z.e%AcX
} dI>)4( )
);
SN?jxQ
fr.setResizable(true); Tl8S|Rg
fr.setSize(500, 100); e1~C>
fr.setVisible(true); wy&