“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。 I?=Q
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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》。 "(5M }5D
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以下是用不同语言写成的Hello World程序的几个例子: ^U52
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Ada TSOt$7-
with Ada.Text_Io; use Ada.Text_Io; xk,E
A U
procedure Hello is MxY CMe4S[
begin qz 'a.]{=
Put_Line ("Hello, world!"); JSM{|HJxh
end Hello; ^vzNs>eJ
j=7 ]"%
!e?\>
'
汇编语言 #8'%CUF*<8
OHB!ec6W
x86 CPU,DOS,TASM oD.f/hi0|
MODEL SMALL tw;`H( UZ^
IDEAL
H='`#l1
STACK 100H LWY`J0/
+f+\uObi:
DATASEG 1:-$mt_*
HW DB 'Hello, world!$' O!a5
bz@4obRqf
CODESEG %9IM|\ulp
MOV AX, @data :U~[%]
MOV DS, AX {pVD`#Tl[
MOV DX, OFFSET HW `=oN &!
MOV AH, 09H R{.ku!w
INT 21H r8mE
MOV AX, 4C00H DY1o!thz)
INT 21H bygwoZ<E
END "UE'dWz
!=ZbBUJF
WHU&9N
x86 CPU,GNU/Linux,NASM "kMpa]<c-6
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). bH&[O`vf
;Enter this into "hello.asm" then type: IE3GM^7\
;"nasm -f elf hello.asm" doG&qXw
;"ld hello.o -o hello" )yjHABGJ
;"./hello" @+\OoOK<L
$v+g3+7
section .data ;data section declaration X/?3ifP6I
msg db 'Hello World!',0AH 3o6N&bQ b
len equ $-msg ;string length Qq5)|m
]R0^
}sI
section .text ;code section declaration f F?=W
global _start ;entry point (start of execution) ifuVV Fov
_start: mov edx,len ;string length 8Y:bvs.j
mov ecx,msg ;string start C6GYhG]
mov ebx,1 ;file handle: stdout !x>P]j7A}Y
mov eax,4 ;sys_write +&|WC2#
int 80h ;kernel system call zF{5!b
srUpG&Bcx
mov ebx,0 ;return value <jV_J+#
mov eax,1 ;sys_exit KnlVZn[3t
int 80h ;kernel system call /<GygRs
mgS%YG
@n<WM@|l
x86 CPU,Windows,MASM32 B;^7Yu0,
.386 oSxHTbp?
.model flat,stdcall _,5(HETE2
option casemap:none p3X>
;Include 文件定义 qV5ME#TJ
include windows.inc ZYg="q0x&
include user32.inc ^}9Aq $R
includelib user32.lib
[~ fJ/
include kernel32.inc vQztD_bX%
includelib kernel32.lib HZR~r:_
i
;数据段 NX$$4<A1
.data "",V\m
szCaption db 'A MessageBox!',0 -8g ;t3z
szText db 'Hello,world!',0 qW),)i
;代码段 UAa2oY&
.code g!4"3Dtdg
start: \ B<(9
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK lepgmQ|oY
invoke ExitProcess,NULL Kx ';mgG#$
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> U1B5gjN
end start %T!UEl`v
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EY':m_7W
AWK 6MF%$K3
BEGIN { print "Hello, world!" } a(!:a+9WOP
A:>G: X5t
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BASIC ^qGH77#z
传统版BASIC(例如GWBASIC): cvi+AZ=
C^]bXIb
10 PRINT "Hello, world!" Bx;bc
20 END I
91`~0L*
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或在提示符输入: {V,rWg
HX?5O$<<N
?"Hello, world!":END EPW
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b>?X8)f2e
现代版BASIC(例如Quick BASIC): WnU"&XZ
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Print "Hello, world!" G
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7'd_]e-.
以下的语句在Quick BASIC中同样有效: $U3s:VQ '
IYb@@Jzo
? "Hello,world!" xqX~nV#TB
}>fL{};Z"
2 ES .)pQ
BCPL -TSn_XE
GET "LIBHDR" 1P@&xcvS\
J8~3LE
)G
LET START () BE WADNr8.
$( b2duC
WRITES ("Hello, world!*N") eLM_?9AZ!R
$) 0(h *<g:
rQ
LNo,
pO4}6\1\
Befunge p~En~?<
"!dlrow olleH">v 3T%WfS+
, aa8WRf
^_@ }r9f}yX9Q
3;@t{rIin
6(VCQ{
Brainfuck ;VNwx(1l`
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< W_ngB[
+++++++++++++++.>.+++.------.--------.>+.>. 7{2knm^
+3!um
M n3cIGL
C ts
aD5B
#include <stdio.h> /m(vIl
Cir==7A0
int main(void) _\1wLcFj
{ \&n]W\
printf("Hello, world!\n"); LEKN%2
return 0; Y6 ,< j|
} p(:\)HP)R
8(\Az5%
[89#8|+
C++ rX)PN3TD
#include <iostream> : DCj2"
pTX{j=n!
int main() It!PP1$
{ >x eKO2o
std::cout << "Hello, world!" << std::endl; Da0E)
return 0; ej]^VS7w[r
} Ul)2A
8yF15['
1BmevEa)
C++/CLI i\XOk!
int main() p9y
"0A|
{ {|O8)bW'
System::Console::WriteLine("Hello, world!"); YO|Kc
{j2e
} pdngM8n
rc<^6HqD
r\.1=c#"bP
C# (C Sharp) T4F}MVK
class HelloWorldApp { %vX/Ek
{ ;lB%N
t<,
public static void Main() &Ru|L.G`
{ 4t|ril``]
System.Console.WriteLine("Hello, world!"); Eo!1
WRruF
}
e%afK@c
} tK`sVsm>
XTUxMdN
.R#p<"$I
COBOL j*Ta?'*
IDENTIFICATION DIVISION. G29PdmY$<
PROGRAM-ID. HELLO-WORLD. O$V
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@(,k%84z
ENVIRONMENT DIVISION. s=!
y%
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DATA DIVISION. qH: `
O%,
\f}S Hh
PROCEDURE DIVISION. &HNJ'
DISPLAY "Hello, world!". 4/&Us
STOP RUN. ><mZOTn e;
A|,\}9)4X[
ce0TQ
Common Lisp &.y:QVR,!
(format t "Hello world!~%") BuCU_/H
rW0# 6
. p^='Kz?
DOS批处理 I3uaEv7OZc
@echo off <x,u!}5J
echo "Hello, world!" F42r]k
@F]6[
Qx1ZxJz #
Eiffel cpF\^[D
class HELLO_WORLD WZ"NG|
>0k7#q}O
creation 7hZCh,O
make 2Vxr
feature m\(4y Gj
make is B$1e AwT9
local S$HzuK\f
io:BASIC_IO B.-5$4*s
do 9<I@}w
!!io >9'G>~P~I=
io.put_string("%N Hello, world!") >eQ;\j
end -- make (YVl5}V
end -- class HELLO_WORLD W$O^IC
%*wJODtB|
H$>D_WeJ
Erlang !@{_Qt1
-module(hello). ^>gRK*,
-export([hello_world/0]). s3HwBA
[u;]J*
hello_world() -> io:fwrite("Hello, World!\n"). kj~)#KDN
%6j|/|#]
0}2Uj>!i
Forth LyH8T'C~
." Hello, world!" CR OD-CU8X9
B q+RFo
^n!{ vHz
Fortran iJv4%|9
WRITE(*,10) Z$ Fh4
10 FORMAT('Hello, World!') >*(4evU
STOP R"Nvnpm
END S5*wUd*p#
PX65Z|~>_
m(,vymt
HTML 0APwk
}
<HTML> nud,ag
<HEAD> PwU}<Hrl]
<TITLE> Hello World! </TITLE> */sVuD^b`
</HEAD> Z#BwJHh
<BODY> H=?v$!
i
<p>Hello World!</p> 6^F"np{w
</BODY> ;2q;RT`h
</HTML> M p:c.
M8X*fYn
/ tM<ois*
HQ9+ 5gARGA
H 4Z)`kS}=]
$6}siU7s4
8+{WH/}y8
INTERCAL }`{>]2
PLEASE DO ,1 <- #13 UeV2`zIg`
DO ,1 SUB #1 <- #238 hSSF]
DO ,1 SUB #2 <- #112 0kS[`a(}J
DO ,1 SUB #3 <- #112 M;OY+|uA
DO ,1 SUB #4 <- #0 XeX0\L')R
DO ,1 SUB #5 <- #64 I~H:-"2
DO ,1 SUB #6 <- #238 BoYWx^VHx^
DO ,1 SUB #7 <- #26 Q%KH^<
DO ,1 SUB #8 <- #248 rVd (H
DO ,1 SUB #9 <- #168 7m_Jb5
DO ,1 SUB #10 <- #24 ;Xg6'yxJ
DO ,1 SUB #11 <- #16 ks<gSCB
DO ,1 SUB #12 <- #158 Idop!b5!
DO ,1 SUB #13 <- #52 A(X~pP&oF
PLEASE READ OUT ,1 1,=U^W.G
PLEASE GIVE UP hV#+joT8i
<Z{\3X^
m663%b(5>
Java u`dWU}m)
public class Hello y K)7%j!
{ pj;cL]L
public static void main(String[] args) 7GY[l3arxv
{ EQ1wyKZS2g
System.out.println("Hello, world!"); GQhzQM1HS
} `An|a~G1
} !yU!ta Q
<use+C2
ke_Dd?
JSP 8.HqQ:?&2t
<% jG)fM?
out.print("Hello, world!"); mj=$[y(
%> &MsnQP
V^B'T]s
&:`T!n
MIXAL L$6{{Tw"2
TERM EQU 19 the MIX console device number :$."x
'
ORIG 1000 start address Ar7vEa81
START OUT MSG(TERM) output data at address MSG yz8ZY,9
HLT halt execution L3iYZ>]
MSG ALF "MIXAL" "^VKs_U8o
ALF " HELL" h~{TCK+I
ALF "O WOR" sCU<1=
ALF "LD " z1wy@1o'
END START end of the program EL$l .
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%$|=_K)Ks
Nuva ~f0Bu:A)
<..直接输出..> NF&R}7L
Hello, world! 'qwFVP
>M[wh>
<..或者..> M%pxv6?""{
eE5U|y)_
<. }eb}oK
// 不带换行 $HT
{}^B
? "Hello, world!" e84[B.
[}q6bXM*
// 或者 .vYU4g]
^+tAgK2
// 带换行
hz{=@jX
?? 'Hello, world!' U">w3o|
.> PCDsj_e
<3zA|
wZ/Zc}
.
OCaml zY_BnJ^
let main () = E7@0,9AU
print_endline "Hello world!";; T<Y^V
{ \9vW; '
ukb2[mb*u
Pascal +LeZjA[
program Hello; Cfqgu;m
begin XcB!9AIO
writeln('Hello, world!'); PB00\&6H
end. #8iRWm0*6
"4"gHs
T(zERWo
Perl ]8FSs/4
#!/usr/local/bin/perl b!Pz~faXD
print "Hello, world!\n"; C"no>A^
udVEOn$
DjUif "v
PHP oe`t ? (U
<?php 2iC7c6hc
print("Hello, world!"); k44sV.G4L
?> L;$Gn"7~
unu%\f>^4
$}RBK'cr}
Pike m [7@l
#!/usr/local/bin/pike }@%A@A{R
int main() ,paD/
{ G6wBZ?)k
write("Hello, world!\n"); !j[Oyr|
return 0; Bc3(xI'>J
} |2w,Np-
78&(>8@m
5/4N Y
PL/I "
UaUaSg#
Test: procedure options(main); ~ /s(.oji
declare My_String char(20) varying initialize('Hello, world!'); 6cH.s+
put skip list(My_String); cnJ(Fv_F$
end Test; &?C%
-"|c
s<,[xkMB
H:byCFN-
Prolog tmEF7e`(o
goal &U/7D!^X
write("hello,world!"). F;$z[z
7 -yf
pv);LjF
Python s8;/'?K
#!/usr/local/bin/python t;X
!+
print "Hello, world!" [yj-4v%u`
gI<e=|J6w
[~e{58}J|
REXX WgX9k J
say "Hello, world!" kU^*hd]
W2cgxT
?/"Fwjau
Ruby ,SQmQ6h
#!/usr/bin/ruby _"Yi>.{]
print "Hello, world!\n" bV c"'RQ
&L6xagR7M
:uwB)G
Scheme z Ic%>?w
(display "Hello, world!") n<RvL^T=
(newline) m/}(dT;
g=W1y
K[}5bjh>
sed (需要至少一行输入) k~
Z9og
sed -ne '1s/.*/Hello, world!/p' :: IAXGH)
S5B12P
e(nT2E
Smalltalk #+$pE@u7A
Transcript show: 'Hello, world!' n?uVq6c
*$+k-BV
\/=w\Tj
SNOBOL /S9s%scAy
OUTPUT = "Hello, world!" "Z xM,kI
END 8K(3{\J[V
7i(U?\A;.
EVs.'Xg<
SQL v&}+ps_W
create table MESSAGE (TEXT char(15)); -jN:~.
insert into MESSAGE (TEXT) values ('Hello, world!'); \X&LrneR"t
select TEXT from MESSAGE; 7-Bttv{
drop table MESSAGE; bEx8dc`Q
NlLgXn!
& !0 [T
Tcl .FV
wZ:d
#!/usr/local/bin/tcl t<sy7e='
puts "Hello, world!" N=4`jy =
c j-_
~\4`tc
TScript kC :pal
? "Hello, world!" A\Ax5eeL
^)-* Ubzz
P|M#S9^]
Turing v(Vm:oK,
put "Hello, world!" .4I"[$?Q
*hugQh]a
8Ter]0M&
UNIX-style shell Hz A+Oi
程序中的/bin/sh可改为您使用的shell BEU^,r3z
y9<]F6TT
#!/bin/sh <$m=@@qg
echo 'Hello, world!' HI+87f_Q
c{7<z9U
.Y@)3
GUI w?u4-GT
H~fX>6>
Delphi mC-'z
program HelloWorld; h7 uv0a~0
uses N%3
G\|~Q
Dialogs; bBwMx{iNNz
begin
~lg1S
ShowMessage('Hello, World!'); <<Zt.!hS
end. J2tD).G
^5BLuN6
"0BuQ{CQ
Nuva ">$.>sn{
<. |q0MM^%"
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) [):&R1