“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。 cNM3I,o7
l]8D7(g
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》。 Of4^?`
^
"x 3lQ
以下是用不同语言写成的Hello World程序的几个例子: )XYv}U
Ada cVv;Jn
with Ada.Text_Io; use Ada.Text_Io; p$PKa.Y3
procedure Hello is X)7x<?DAy
begin 0l-Ef1
Put_Line ("Hello, world!"); H;YP8MoQ
end Hello; i*#-I3
Yy)tmq
>D(R YI
汇编语言 +\F'iAs@
xHz[t6;4;
x86 CPU,DOS,TASM gqu?o&>9
MODEL SMALL z@B=:tf
IDEAL wid;8%m
STACK 100H %F-ZN^R
TWQG591
DATASEG f!!V${)X
HW DB 'Hello, world!$' :}@g6
E0MGRI"me
CODESEG Kfh|
MOV AX, @data :'~Y
MOV DS, AX f;1K5Y
MOV DX, OFFSET HW /.Ww6a~
MOV AH, 09H r[lF<2&*R
INT 21H Y#u}tE
d
MOV AX, 4C00H %<an9WMF
INT 21H *Df,Ijh $
END "a8j"lPJ
r=X}%~_8X
(^u1~1E 5
x86 CPU,GNU/Linux,NASM (`sH3&Kl
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). "CUty"R8
;Enter this into "hello.asm" then type: mR}6r2O2\Q
;"nasm -f elf hello.asm" DGAX3N;r6{
;"ld hello.o -o hello" ]dI2y=[!C
;"./hello" w8Sp<6*
=
c>Qx"Sw
section .data ;data section declaration ni<A3OB
msg db 'Hello World!',0AH E}40oID
len equ $-msg ;string length /4`
0?/V
YwZ
Z{+n
section .text ;code section declaration @+ BrgZv`
global _start ;entry point (start of execution) ?q;Fp
_start: mov edx,len ;string length ReM=eS
mov ecx,msg ;string start d*~ICir7
mov ebx,1 ;file handle: stdout G-?d3n
mov eax,4 ;sys_write YRh BRE
int 80h ;kernel system call Y6Lf@}2(i
(fCXxyZrr
mov ebx,0 ;return value +(C6#R<LI
mov eax,1 ;sys_exit B,TB3
{
int 80h ;kernel system call WXmn1^"kK}
vfq%H(
'J6
M*vO
x86 CPU,Windows,MASM32 D (h18
.386 YEj8S5"Su\
.model flat,stdcall X!m9lV<
option casemap:none 20Z8HwQi
;Include 文件定义 0o9 3iu=&
include windows.inc qL6
|6-?
include user32.inc Y@b.sMg{
includelib user32.lib l)!n/x_ !
include kernel32.inc m3mp/g.>
includelib kernel32.lib !!`!|w
;数据段 :j]vf8ec
.data l&?}hq^'Dn
szCaption db 'A MessageBox!',0 [$ejp>'Ud
szText db 'Hello,world!',0 /4vG3
;代码段 :1iqT)&|8F
.code h\PHKC2
start: J,AR5@)1
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK _c,'>aH=
invoke ExitProcess,NULL 1. rj'
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> L(khAmm
end start l PK
+$f$
/ew
Ukc8,
}w1~K'ck}>
AWK H
Ge0hl[n
BEGIN { print "Hello, world!" } ho0@ l
\'CDRr"uw
2EfF=Fm>
BASIC S6AU[ASY.
传统版BASIC(例如GWBASIC): `~ * @q!
R0L&*Bjm
10 PRINT "Hello, world!" 4( 1(e
20 END ;~\MZYs3m
SL;9Q[
或在提示符输入: ~d6DD;`K
"Q?k'^@
?"Hello, world!":END l"2OP6d
'ul~7h;n
现代版BASIC(例如Quick BASIC): Ygl%eP%Z
}C#;fp"L
Print "Hello, world!" UGuxV+Nwf
x
>^Si/t
以下的语句在Quick BASIC中同样有效: QC X8IIHG
r%.do;5
? "Hello,world!" sRrzp=D
|"9 #bU
i}o[- S4
BCPL ]@0NO;bK>F
GET "LIBHDR" 9$|Gfyv
]- 4QNc=
LET START () BE cg*)0U-_(
$( a(v>Q*zNP
WRITES ("Hello, world!*N") /Ne<V2AX
$) W@Lu;g.Yc
?HV`|
Cw
!V,{_(LT
Befunge {FG|\nPw
"!dlrow olleH">v EoxQ
*/
, a\:VREKj,
^_@ kJ-*fe'S
8krpowVs~
cPU/tkc
Brainfuck ^>N]H>0'S
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< 'qF#<1&
+++++++++++++++.>.+++.------.--------.>+.>. `A,g] 1C:
NbGV1q']
|R#"Th6mH!
C n Ml%'[u
#include <stdio.h> nYa*b=[.
-atGlu2
int main(void) _Jt 2YZdA
{ i6 (a@KRY
printf("Hello, world!\n"); ZU9c 5/J
return 0; A6pjRxg
} y:vxE8$Q
Wf&W^Q
BZXUwqEh
C++ `QUy;%+
#include <iostream> 4)<~4 '
(Gw,2-A
int main() }Iz7l{al
{ K&U7H:
std::cout << "Hello, world!" << std::endl; `/MvQ/
return 0; \a=D
} DVkB$2]
v^_mFp-}\
.LuB\o$
C++/CLI QEu=-7@>
int main() !grVR157P
{ 5n
^TRB
System::Console::WriteLine("Hello, world!"); ^-a8V'
} 6"D/xV3Z
Zb134b'
UD)e:G[Gat
C# (C Sharp) Q26qNn
bK
class HelloWorldApp LT,? $I
{ His*t1o8'O
public static void Main() 'D%w|Pe?Q
{ = 07]z@s
System.Console.WriteLine("Hello, world!"); A?oXqb
} !Y:0c#MPH
} ??i4z[0M
Izv+i*(dl
f*24)Wn<
COBOL l?q%?v8
IDENTIFICATION DIVISION. %Jf<l&K.`
PROGRAM-ID. HELLO-WORLD. }h}<!s
6Vbzd0dk
ENVIRONMENT DIVISION. W7\&~IWub
)
9oH,gZ
DATA DIVISION. )#}mH @
KPpHwcYxT
PROCEDURE DIVISION. DtEwW1J
DISPLAY "Hello, world!". $L2%u8}8:
STOP RUN. wV)}a5+
\xUe/=
2EK%N'H
Common Lisp $
A9%UhV
(format t "Hello world!~%") [*Z`Kc
,=
&B28Qe)
IB`>'~s&A
DOS批处理 7lo|dg80
@echo off QERU5|.wc
echo "Hello, world!" 7'-j%!#w
"sgjWo6
/LM4-S
Eiffel rO:u6."_
class HELLO_WORLD cf7v[ZZ}
z 8*8OWM
creation KnNh9^4"\2
make 7E @+
feature p<v.Q
make is i#%a- I:M
local wfjc/u9W6R
io:BASIC_IO ?~QIALA
do U5]pi+r
!!io x5Z-{"
io.put_string("%N Hello, world!") )*5G">) )p
end -- make i0s6aAhgJ
end -- class HELLO_WORLD zj|/ CxV
3<?XTv-
G8I Y#
Erlang R <"6ojn
-module(hello). oQ7]=|
-export([hello_world/0]). 0gn@h/F2%
/V?H4z[G
hello_world() -> io:fwrite("Hello, World!\n"). {gKN d*[*
L@^~N$G&u
=ORf%f5"'
Forth (.Lrmf@hI7
." Hello, world!" CR lZQ/W:OE
sgr=w+",Q
%ObD2)s6:^
Fortran 2Nj9U#A
WRITE(*,10) [Lp,Hqi5
10 FORMAT('Hello, World!') ^MmC$U^n
STOP Ft@Wyo`^
END !%Y~~'5 h
ZE`lr+_Y
==cd>03()
HTML 60Z]M+8y8
<HTML> ?Mp1~{8
<HEAD> <g9"Cr`
<TITLE> Hello World! </TITLE> to6;?uC+|i
</HEAD> c[ht`!P
<BODY> 3g~^LZ66
<p>Hello World!</p> $iM=4
3W
</BODY> QI_59f>
</HTML> ]/T-t1D
ofW+_DKB?l
&)pK%SAM
HQ9+ h~7,`fo
H 0"g@!gSrQ
^I]{7$6^
L"<B;u5pM
INTERCAL a9~"3y
PLEASE DO ,1 <- #13 :h:@o h_=
DO ,1 SUB #1 <- #238 (XH2Sy
DO ,1 SUB #2 <- #112 )uLr?$qe
DO ,1 SUB #3 <- #112 9B+wYJp
DO ,1 SUB #4 <- #0 +/?iCmW
DO ,1 SUB #5 <- #64 /dDzZ%/@
DO ,1 SUB #6 <- #238 E-1"+p
DO ,1 SUB #7 <- #26 ^UA(HthY
DO ,1 SUB #8 <- #248 Iwpbf Z
DO ,1 SUB #9 <- #168 Qeb}!k2A
DO ,1 SUB #10 <- #24 &D#+6M&LK{
DO ,1 SUB #11 <- #16 +[m8c){
DO ,1 SUB #12 <- #158 <1&Ke
DO ,1 SUB #13 <- #52 <3hA!$o~
PLEASE READ OUT ,1 K<v:-TjQZ:
PLEASE GIVE UP _N3}gFh>
2*U.^]~"{
yZJ*dadAr
Java s T3p>8n
public class Hello #3kXmeyrD
{ 8G ]w,eF
public static void main(String[] args) [$ :
{ ^^(<c,NX#M
System.out.println("Hello, world!"); ;5<-)
} tLcEl'Eo
} 0>!/rR7
WP-jtZ?!"
I"xWw/Ec
JSP ,f:
jioY
<% ]#<
out.print("Hello, world!"); <E':[.zC
%> _ ^7|!(Sz
-cNx1et
|
W#~F&{]
MIXAL OYf{?-QD
TERM EQU 19 the MIX console device number ~_ !ts{[E
ORIG 1000 start address Xz;b,C&*t
START OUT MSG(TERM) output data at address MSG .F0]6#(
HLT halt execution #B\=Aa`*
MSG ALF "MIXAL" >Csbjf6
ALF " HELL" ^Y^"'"
ALF "O WOR" c!&Qj
ALF "LD " {@M14)-x>_
END START end of the program FQf#*
,m07p~,V
S 2$5!(P
Nuva .#^0pv!
<..直接输出..> dDKqq(9(`
Hello, world! L)-*,$#<oW
za,2r^
<..或者..> Nm8w/Q5D`
0^]t"z5f0
<. ~,}s(`~
// 不带换行 LCQkgRs}~{
? "Hello, world!" 'o\;x"YJ
;mO,3dV
// 或者 L(WOet( '
Goj4`Hc
// 带换行 j$eCe<.3
?? 'Hello, world!' |*Ot/TvG
.> 7dD.G/'
Xyv8LB
Ku3!*n_\
OCaml Kj*m r%IaU
let main () = 4`mO+.za1
print_endline "Hello world!";; wL<j:>Ke[3
~4s-S3YzaM
v`{:~q*
Pascal KR3-Hb4
program Hello; :'w?ye[e
begin K[?R[
writeln('Hello, world!'); KCXw n
end. R!{7OkC
XUsy.l/
oofFrAaT
Perl @
t@|q
#!/usr/local/bin/perl >rwYDT#m]
print "Hello, world!\n"; N^B@3QF
0|2%# E
+ x_wYv
PHP PN\V[#nS
<?php \:sk9k
print("Hello, world!"); ?@a$!_
?> v+tO$QZ`
^\YQ_/\~L
}%{=].)L
Pike (G5T%[/U
#!/usr/local/bin/pike K<,Y^3]6?
int main() N&B>#:
{ 5X;?I/9
write("Hello, world!\n"); DyI2Ye
return 0; $DV-Ieb
} y@9Y,ZR*
H!JWc'(<$
,cQ)cY[
PL/I DN|vz}s
Test: procedure options(main); -IvL+}K
declare My_String char(20) varying initialize('Hello, world!'); #D:RhqjK
put skip list(My_String); |!re8|JV_
end Test; \|!gPc%s
u'@Ely
9}whWh
Prolog &5/JfNe3
goal &^ceOV0+
write("hello,world!"). =[(%n94
&9h
=n
}Yqny
Python f)tc 4iV
#!/usr/local/bin/python ~\bHfiIDy
print "Hello, world!" Fhi5LhWe+.
*'^:S#=
7S2c|U4IM
REXX N K"%DU<
say "Hello, world!" l-=e62I{=|
E<a.LW@
7h1"^}M&
Ruby M;@Ex`+?i
#!/usr/bin/ruby -CElk[u
print "Hello, world!\n" ZW2s[p r
oF&IC
j0
Z`"n:'&
Scheme %jgg59
(display "Hello, world!") Z>HNe9pr
(newline) 6+#,=!hF{
%9YA^ri
SW-0h4
sed (需要至少一行输入) ;Yu>82o.:
sed -ne '1s/.*/Hello, world!/p' QZYM9a>
sBB:$X
}u7D9_KU
Smalltalk &u4Ve8#
Transcript show: 'Hello, world!' z{V8@q/
PE7t_iSV
>!G5]?taa
SNOBOL E$&;]a
OUTPUT = "Hello, world!" 2E([#Pzb
END +TWJNI
+ks$UvtY
'w`d$c/p
SQL L.Vq1RU\"
create table MESSAGE (TEXT char(15)); |>[X<>m
insert into MESSAGE (TEXT) values ('Hello, world!'); Q^kMCrp
select TEXT from MESSAGE; OMxxI 6h
drop table MESSAGE; rX)o3>q^?
=~;zVP
*U2Ck<"]
Tcl 8\u;Wf
#!/usr/local/bin/tcl W-!dMa
puts "Hello, world!" % $\}z(G
fX$6;Ae
7Fc |
TScript wtUG^hV #_
? "Hello, world!" QJ6f
EV$~
=/f74s
t
TR_(_Yd?36
Turing R3cG<MjmK
put "Hello, world!" $$/S8LmmK
@>Biyb
@]yQJuXA&Z
UNIX-style shell 6vZt43"m?\
程序中的/bin/sh可改为您使用的shell vkh;qPD
Q)9369<A
#!/bin/sh [ y$j9
echo 'Hello, world!' MbM:3
),z,LU Yf
2@4MC`&