“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。 pND48 g;
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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》。 0Nt%YP
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以下是用不同语言写成的Hello World程序的几个例子: *w|iu^G
Ada @7 -D7
with Ada.Text_Io; use Ada.Text_Io; L&QtHSzy
procedure Hello is JSRg?p\
begin 80HEAv,O
Put_Line ("Hello, world!"); 7N6zqjIB
end Hello; K k`<f d
77tZp @>hn
F'XlJ M
汇编语言 9\:w8M X'
<\p&jk?
x86 CPU,DOS,TASM pLPd[a
MODEL SMALL ],Ab cTX
IDEAL FbuKZp+
STACK 100H =O,e97
eWw y28t
DATASEG =uS8>.Qj
HW DB 'Hello, world!$' GV=V^Fl .
*%nX#mwz
CODESEG kHZKj!!R
MOV AX, @data WFXx70n
MOV DS, AX ,rXW`7!2
MOV DX, OFFSET HW $:P[v+Uy
MOV AH, 09H
Re{ej
INT 21H P^ by'b+zI
MOV AX, 4C00H )|Jr|8
INT 21H >" i~ x
END Mg&HRE
ga,A'Z
m[{nm95QZ
x86 CPU,GNU/Linux,NASM \#HL`R"
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). /oB K&r[(
;Enter this into "hello.asm" then type: oA[2)BU
;"nasm -f elf hello.asm" WtMcI>4w
;"ld hello.o -o hello" cS+?s=d
;"./hello" v#w4{.8)
PVS\,
section .data ;data section declaration g\E ._ab<
msg db 'Hello World!',0AH f.sPE8#3=
len equ $-msg ;string length 0GF%~6
P~;<o!f
section .text ;code section declaration !:&2+%
global _start ;entry point (start of execution) +W!'B
r
_start: mov edx,len ;string length H)-L%l|9
mov ecx,msg ;string start (gFQK[
mov ebx,1 ;file handle: stdout ;9 lqSv/6
mov eax,4 ;sys_write &0?DL
int 80h ;kernel system call H;4oZ[g
uV/)Gb*j
mov ebx,0 ;return value [<,0A]m
mov eax,1 ;sys_exit X*(gT1"t
int 80h ;kernel system call `>$gy/N
%9fa98>
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x86 CPU,Windows,MASM32 h4B+0
.386 <#:Ebofsn
.model flat,stdcall _Jt_2o%G
option casemap:none \3,$YlG
;Include 文件定义 x A@|I#
include windows.inc 8uD8or
include user32.inc HE8'N=0
includelib user32.lib t"jIfU>'a/
include kernel32.inc 56/.*qa
includelib kernel32.lib RI7qsm6RN
;数据段 bgkbwE
.data wR`w@5,d
szCaption db 'A MessageBox!',0 7R%
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szText db 'Hello,world!',0 P*?d6v,r
;代码段 XY&]T'A
.code :..E:HdYO
start: 'M]CZ}
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK S}XB
|
invoke ExitProcess,NULL w yuJSB
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Ep#<$6>
end start zM3H@;}m
oRtY?6^$
)j)y5_m
AWK I\F=s-VVY
BEGIN { print "Hello, world!" } (9'G
i75?*ld
.~V".tZV[
BASIC K{`2jK#
传统版BASIC(例如GWBASIC): ^"6D0!'N
dd
@COP?
10 PRINT "Hello, world!" W}<M?b4tP
20 END *R9mgv[
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或在提示符输入: &j
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?"Hello, world!":END 8O;rp(N.n
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现代版BASIC(例如Quick BASIC): )KTWLr;
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Print "Hello, world!" 0N}
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以下的语句在Quick BASIC中同样有效: o#KPrW`XJ/
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? "Hello,world!" ?L~=Z\H
)=SYJ-ta<
}X W#?l
BCPL JVIcNK)
GET "LIBHDR" "8C(_z+]K`
k*UR#z(I
LET START () BE 2kmna/Qa6
$( =O}%bZ)Q
WRITES ("Hello, world!*N") 8zB+%mcF
$) EcS-tE4%
#/
gme
)4o=t.O\K
Befunge ,:Rq
"!dlrow olleH">v 6lH>600]u
, UU:QK{{E
^_@ 0I
ND9h.%
Z:o'
+oh
*M**h-p2'
Brainfuck \VhpB
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< ah&plaVzC
+++++++++++++++.>.+++.------.--------.>+.>. "351s3ff
#VMBn}
N%M>,wT
C EF7|%N
#include <stdio.h> fAA@ziKg
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int main(void) d9e H}#OY
{ JwG5#CFu^
printf("Hello, world!\n"); nH3b<k;S
return 0; 0 S`b;f
} oT5rX
,8
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:N'[de
C++ uhN(`E@
#include <iostream> l.W 1$g
x.4)p6
int main() _tauhwu
{ (L6]uNOG
std::cout << "Hello, world!" << std::endl; W2o8Fu
return 0; `efH(
} PTV`=vtj
[2fiHE
;hJ/t/7
C++/CLI #lVl?F+~
int main() T;pn -
{ snk{u/0Xm
System::Console::WriteLine("Hello, world!"); KX`nHu;
} 7!QXh;u
~>-;(YU"t
0R!}}*Ee>q
C# (C Sharp) gu%'M:Xe
class HelloWorldApp /n 3&e
{ 0o'ML""j
public static void Main() x`|tT%q@l
{ J$ih|nP
System.Console.WriteLine("Hello, world!"); +`vZg^_c`
} qZ]VS/5A
} (j 8,n<o
Q8/0Cb/
D@vvy6>~s
COBOL a_fW{;}[
IDENTIFICATION DIVISION. LyPBFo[?
PROGRAM-ID. HELLO-WORLD. o5G "J"vxe
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ENVIRONMENT DIVISION. /v ;Kb|e
kAF}*&Kzd~
DATA DIVISION. ZCF-*nm
ny?m&;^r:
PROCEDURE DIVISION. IF?B`TmZ
DISPLAY "Hello, world!". 3*23+}^G
STOP RUN.
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U&\{/l
,ce^"yG
Common Lisp MldL"*HW:
(format t "Hello world!~%") \iE9&3Ie
u#k6v\/
YbBH6RZr
DOS批处理 \ rWgA
@echo off u4^"E+y^S
echo "Hello, world!" 8}E(UsTa
(c|qX-%rC
U4I` xw'
Eiffel Oqe.t;E 0}
class HELLO_WORLD >u#VHaB
~acK$.#
creation B91PlM.
make G+^$JN=
feature _!p$47
make is eu|q
{p
local e;u8G/
io:BASIC_IO :\;uJ5
do ->9xw
!!io "@?kxRn!
io.put_string("%N Hello, world!") kxf=%<l
end -- make x{o5Ha{
end -- class HELLO_WORLD H 1X]tw.
9F1stT0G%
|VEAzY|[#
Erlang [)0 k}
-module(hello). +7OT`e
%q
-export([hello_world/0]). wupD
2 3w{h d
hello_world() -> io:fwrite("Hello, World!\n"). cW^)$>A
Afl'-
17 iq
Forth ga9:*G!b{)
." Hello, world!" CR =0yJ2[R7Do
Z_WTMs:x!
wz)9/bL
Fortran y%l#lz=6
WRITE(*,10) GQBN-Qv
10 FORMAT('Hello, World!') jz:c)C&/
STOP |^{" 2l"j
END u(`A?H:
l#.,wOO{
RteTz_z{
HTML
r@UY$z
<HTML> M.^A`
<HEAD> 80>!qG
<TITLE> Hello World! </TITLE> 2![W
N*N>O
</HEAD> $s!meg@s
<BODY> 7V``f:#d
<p>Hello World!</p> "
CoR?[,x
</BODY> ,]qX_`qF
</HTML> .g?,:$`0D?
nQ3goVRFP
WN1-J(x6
HQ9+ VjMuU"++@
H 4ux5G`oL
x^skoz
oF^hq-xcP
INTERCAL ;CBdp-BUj
PLEASE DO ,1 <- #13 `I{Q,HQ7
DO ,1 SUB #1 <- #238 A6.'1OD
DO ,1 SUB #2 <- #112 vBnHG-5;P
DO ,1 SUB #3 <- #112 2` qXDfD`
DO ,1 SUB #4 <- #0 0Ch._~Q+20
DO ,1 SUB #5 <- #64 BQg]$Tr?
DO ,1 SUB #6 <- #238 gP%!
DO ,1 SUB #7 <- #26 HNT8~s.2
DO ,1 SUB #8 <- #248 e/\_F+jyc
DO ,1 SUB #9 <- #168 RyD$4jk+T"
DO ,1 SUB #10 <- #24 H2cc).8"
DO ,1 SUB #11 <- #16 ~ riw7"
DO ,1 SUB #12 <- #158 Ih"Ol(W
DO ,1 SUB #13 <- #52 H;&t"Ql.
PLEASE READ OUT ,1 .w)t<7 y
PLEASE GIVE UP %;?3A#
A@'W $p?5r
E=trJge
Java ^uzVz1%mM
public class Hello 1`\kXaG
{ 1zW6Pb
public static void main(String[] args) 3s`3}DKK
{ _S1uJ~j;E
System.out.println("Hello, world!"); VNXVuM )c
} nP31jm+A
} .CpO+z
l/NK.Jr
X\RTHlw']
JSP !YHu
<% "r+<=JU>OV
out.print("Hello, world!"); 1X.1t^HH:
%> J)NpG9iN
e[!>ezaIY
0yNlf-O
MIXAL 0n=E.qZ9c
TERM EQU 19 the MIX console device number Gzt5efygKt
ORIG 1000 start address oFp&j@`k8j
START OUT MSG(TERM) output data at address MSG sAlgp2-
HLT halt execution ztpb/9J9
MSG ALF "MIXAL" k]g\`
gc
ALF " HELL" {jG`l$$
ALF "O WOR" i[#Tn52D
ALF "LD " UkV] F]
END START end of the program `<d>C}9
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;Vt
u8f
Nuva q(W@=-uDK
<..直接输出..> +Z*%,m=N(
Hello, world! 6'zy"UkH
rOT8!"
<..或者..> %}:J
9vra
6B{Awm@v}X
<. k#n=mm'N9
// 不带换行 $n"Llw&)
? "Hello, world!" L+L9)8FJ
06$9Uz9
// 或者 P0=F9`3wb
h@d
m:=ul
// 带换行 =
xk@ Q7$
?? 'Hello, world!' 5WYU&8+]{:
.> DM9 5Il[/
_T$\$v$ {
T-TH.
R
OCaml 1-#tx*>AY
let main () = tS7u#YMh
print_endline "Hello world!";; 3F1Z$d(
e hq6.+l
}o4Cd$,8
Pascal M<Mr (z
program Hello; kn\>ZgU
begin Y')+/<Q2E
writeln('Hello, world!'); b'YbHUyu
end. Zpmy)W]1
7SCI_8`
rGWTpN
Perl Xk$lQMwZ
#!/usr/local/bin/perl .w~USJ=X
print "Hello, world!\n"; :*1w;>o)n
R7i*f/m
A-FwNo2"%
PHP xjN~Y D:
<?php Tx(R3B+u7
print("Hello, world!"); f7'%AuSQ(
?> guvQISQlY
4SYN$?.Mp
b}:Z(L,\
Pike (L1`]cp
#!/usr/local/bin/pike _f`m/l
int main() (Wn'.|^%
{ H =jnCGk
write("Hello, world!\n"); Gf?KpU
return 0; c
z|IBsa*
} jYkx]J%S
%#,BvQz~
&%lhov
PL/I 0CROq}
Test: procedure options(main); BlUY9`VWh@
declare My_String char(20) varying initialize('Hello, world!'); y^Lw7
put skip list(My_String); LsXYvX
end Test; >@" j9
d:D2[
1;W>ceN"
Prolog DKZ69^
goal SxDE3A-:
write("hello,world!"). ;Yj}9[p;T
TI332,eL
nCrNZ&P
Python Mw~?@Sq
#!/usr/local/bin/python AZa3!e/1
print "Hello, world!" <Yc:,CU
zP9!fA
zkMQ=,[
REXX m"*:XfOL
say "Hello, world!" RY'y%6Z]ZO
R|suBF3
jhLh~.
8
Ruby D&shrKFx
#!/usr/bin/ruby zin,yJ
print "Hello, world!\n" 61'7b`:(hi
OjN]mp-q
!4E:IM63
Scheme xn"g_2Hi
(display "Hello, world!") ^tv*I~>J!
(newline) {x8`gP\H
Cv| :.y
0\+Qi?&
sed (需要至少一行输入) 9YJb~tuZ73
sed -ne '1s/.*/Hello, world!/p' b%kh:NV{S
J: LSGj;R
URAipLvN
Smalltalk Xk2
75Y
Transcript show: 'Hello, world!' L!5f*
TDoYp
GYYro&aq{
SNOBOL ?]t8$^m,;
OUTPUT = "Hello, world!" V/Q6v
YX
END iB?@(10}ES
Bg`b*(Q
[V2l&ZUni
SQL H)S3/%.|
create table MESSAGE (TEXT char(15)); gDsZbmR
insert into MESSAGE (TEXT) values ('Hello, world!'); ^Z*_@A _v
select TEXT from MESSAGE; v%1# y5
drop table MESSAGE; L4NC-
$H#&.IjY
h+Dok#g
Tcl cZu:dwE
#!/usr/local/bin/tcl <fw[7=_)^
puts "Hello, world!" ql#K72s
h %nZKhm
!hq7R]TC+
TScript |0&S>%=
? "Hello, world!" -b{*8(d<I
3!,%;Vz=
{\V)bizY;
Turing DirWe
put "Hello, world!" t3M/ThIE
,Xn%-OT
ESO(~X+
UNIX-style shell IQM!dC
程序中的/bin/sh可改为您使用的shell Cxh9rUe.
V><P`
#!/bin/sh y?rsfIth`
echo 'Hello, world!' s#Le`pGoW
Ev()2 80
g9gyWz
GUI b ,cvQD
3] !(^N>V
Delphi &EQov9P7
program HelloWorld; ;7hf'k
uses ! yxb<
Dialogs; PQfx0n,
begin L]p:gI{m
ShowMessage('Hello, World!'); VHJr+BQ1K/
end. }LM_VZj
%:??QD*
wy^>i$TC
Nuva j'7FTVmJ
<. 6wF?FtT
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) 8\yH7H
.> #*9*[Xbi
K9*K4'#R
Kg.E~
Visual Basic !{4p+peqJV
MsgBox "Hello, world!" snyx$Qx(
'或者 \F>
*d!^C
Print "Hello, world!" HsO=%bb
m:h]nm
s8tI_h
Visual FoxPro sST6_b
? "Hello, world!" y,%w`
v9<p@GY"\
d`:0kOF+
X11 04(h!@!g:
用一个程序 A.y$.(
_|*j8v3
xmessage 'Hello, world!' rOcfPLJi0
p*^O8o
用C++和gtkmm 2 N+r~\[N\9
9oaq%Sf
#include <iostream> H
fRxgA@
#include <gtkmm/main.h> ]Rw,5\0
#include <gtkmm/button.h>
W6a2I
#include <gtkmm/window.h> >Mn"k\j4
using namespace std; b~\![HoCMM
_rajm J
class HelloWorld : public Gtk::Window :dK%=j*ZK
{ C6Kz6_DQZ
public: i P/I% D
HelloWorld(); *kDXx&7B$
virtual ~HelloWorld(); @50Js3R1q
protected: v.\&gn