“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。 %,q.),F
WO*9+\[v
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》。 o
l ({AYB
sen=0SB/
以下是用不同语言写成的Hello World程序的几个例子: UKBJ_r
Ada 6lFfS!ZFA
with Ada.Text_Io; use Ada.Text_Io; rf
K8q'@
procedure Hello is Ol/N}M|3
begin n"D ?I
Put_Line ("Hello, world!"); #"*e+.j[;
end Hello; L
3XB"A#
U5r}6D!)
cj$6
汇编语言 ~mp0B9L%
1KE:[YQ1
x86 CPU,DOS,TASM H)(jh
MODEL SMALL Ey`h1Y
IDEAL Gc,_v3\
STACK 100H K|r Lkl9
5/0j}_pP
DATASEG 1DJekiWf
HW DB 'Hello, world!$' (p)!Mq
"^
sM2MLh 'D
CODESEG b/("Y.r=
MOV AX, @data 6W2hr2Zy9
MOV DS, AX =H`Q~Xx
MOV DX, OFFSET HW ml!5:r>
MOV AH, 09H <[~,uR7
INT 21H F5T3E?_
MOV AX, 4C00H oF&l-DHp
INT 21H ,. EBOUW^
END #ToK$8
au@a8MP
lCT{v@pp
x86 CPU,GNU/Linux,NASM /Lf6WMit
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). n# 7Pr/*0
;Enter this into "hello.asm" then type: |NFZ(6vNh
;"nasm -f elf hello.asm" Ctu?o+^;z
;"ld hello.o -o hello" ~qP[eWe
;"./hello" SZU
\i*
=d`5f@'rl
section .data ;data section declaration +0$/y]k
msg db 'Hello World!',0AH r%]Qlt~K
len equ $-msg ;string length Jh/ E@}'
X` YwP/D
section .text ;code section declaration ]+Ixi o
global _start ;entry point (start of execution) \,G#<>S
_start: mov edx,len ;string length o*S"KX$
mov ecx,msg ;string start X[$++p
.
mov ebx,1 ;file handle: stdout t#E}NR
mov eax,4 ;sys_write eVh-_
int 80h ;kernel system call Sus;(3EX
bZwnaM4"F
mov ebx,0 ;return value ~l E _L1-c
mov eax,1 ;sys_exit b{7E;KyY,
int 80h ;kernel system call IVxWxM*N<
V|D]M{O
X@A1#z+s0]
x86 CPU,Windows,MASM32 %eWqQ3{P]
.386 ){;02^tX
.model flat,stdcall kL*0M<0 (
option casemap:none qdD)e$XW,
;Include 文件定义 N@T.T=r
include windows.inc ed!>)Cb
include user32.inc V
A^l+Z,d
includelib user32.lib pW\'ZRj
include kernel32.inc )X+mV
includelib kernel32.lib [5d2D,)
;数据段 a*dQ
_
.data oMH.u^b]fT
szCaption db 'A MessageBox!',0 ^%T7. 1'x
szText db 'Hello,world!',0 io2)1cE&f
;代码段 ^eq</5q D
.code 3,X/,'
start: :Ixx<9c.
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK 5`+5{p
invoke ExitProcess,NULL ~%k ?L4%
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ~p1EF;4 #
end start X@2-*so<
J;Rv ~<7
Zo-$z8
AWK },$0&/>ft
BEGIN { print "Hello, world!" } g{k1&|
7;:#;YSha
,T,:-E
BASIC si4-3eC
传统版BASIC(例如GWBASIC): .d<W`%[
S56]?M|[
10 PRINT "Hello, world!" "\%On >
20 END %r{3wH#D@
7*o*6,/
或在提示符输入: L:nXW z
wucV_p.E
?"Hello, world!":END OW;tT=ql
$^/0<i$
现代版BASIC(例如Quick BASIC): <i\A_qqc/
C@\{ehG
Print "Hello, world!" knp>m,w
cR7wx 0Aj
以下的语句在Quick BASIC中同样有效: 6=_~0PcY
PyC0Q\$%
? "Hello,world!" (?)7)5H
\;5\9B"i
U\@A_
B
BCPL w*7|dZk{
GET "LIBHDR" ;U=q-tb
$m$;v<PSe
LET START () BE vsB*rP=
$( ;i uQ?MR3
WRITES ("Hello, world!*N") . RVVWqW
$) n
1b(\PA
dhPKHrS
XUMX*
Befunge w&h2y4
"!dlrow olleH">v &7mW9]
, .1 )RW5|c
^_@ I5ss0JSl/
~`8hwR1&z
yc;3Id5?>
Brainfuck B:TR2G9UT
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< e0,'+;*=g
+++++++++++++++.>.+++.------.--------.>+.>. h+~P"i}&\
K-vWa2
H;ZHqcUX
C 7u.|XmUz
#include <stdio.h> R{Z-m2La
kK>X rj6
int main(void) |iYg >
{ zSTR^sgJ
printf("Hello, world!\n"); qeL pXe0c
return 0; 4p`XG1Pt
} #EO1`9f48x
e9pOisZ;8
l*aj#%ha
C++ yGBQ0o7E
#include <iostream> x+5p1sv6
o?Nu:&yE
int main() +Lm4kA+aE5
{ 'Ye v}QM
std::cout << "Hello, world!" << std::endl; `|O yRU"EK
return 0; 3k$[r$+"
} 0X|_^"!
GV|9H]_,I
shC;hR&;
C++/CLI :t$aN|>y
int main() ihe(F7\U
{ 9v)%dO.
System::Console::WriteLine("Hello, world!"); R,2=&+ e
} D>L2o88
K<sC F[
WKM)*@#,
C# (C Sharp) "@3@/I
class HelloWorldApp 8ovM\9qT
{ XE3aXK'R
public static void Main() {QaNAR=)
{ P,pnga3Wu
System.Console.WriteLine("Hello, world!"); H!IshZfktn
} 2C^B_FUg|]
} 5ABhj* 7
fIC9WbiH-
P'Q$d+F,
COBOL m*0,s
IDENTIFICATION DIVISION. L6P1L)
PROGRAM-ID. HELLO-WORLD. 1^J`1
5`[n8mU
ENVIRONMENT DIVISION. ^)yTBn,
N^0uit
DATA DIVISION. qOV[TP,
CG]Sj*SA~
PROCEDURE DIVISION. T $4P_*
DISPLAY "Hello, world!".
4-Z()F
STOP RUN. H4-qB Z'
Yd
cK&{
er.L7
Common Lisp a l9.}
(format t "Hello world!~%") \(UKdv
L#[]I,
X<OSN&d
DOS批处理 &O\(;mFc
@echo off XEM'}+d
echo "Hello, world!" vH%gdpxX
`\|ssC8u
ov#7hxe
Eiffel qk(P>q8[
class HELLO_WORLD g+8hp@a
1n*W2:,z
creation '(&%O8Yi
make JWP*>\P
feature ;!@EixN-YH
make is =ziwxIo6
local 1M3%fW
io:BASIC_IO U_yE&6 T
do 7EhN u@5-
!!io N)8HR9[!
io.put_string("%N Hello, world!") 8G%yB}pa
end -- make )x,8D ~p'
end -- class HELLO_WORLD O{z}8&oR:
n";02?@F
,"}Rg1\4t
Erlang *~$~yM/~3U
-module(hello). { >{B`e`$
-export([hello_world/0]). )
iQ
_>o-UBb4]T
hello_world() -> io:fwrite("Hello, World!\n"). w2(guL($
6$ Q,Y}j
h( QYxI,|
Forth 3 *S{;p
." Hello, world!" CR cF T 9Lnz
{4 >mc'dv
bEuaOBc
Fortran R!
s6% :Yg
WRITE(*,10) oSb, :^Wl
10 FORMAT('Hello, World!') >n5:1.g
STOP xom<P+M!|
END {1J&xoV"
_#$9 y1bd
+0z 7KO%^^
HTML d?,M/$h
<HTML> 0\{BWNK
<HEAD> w]j+9-._
<TITLE> Hello World! </TITLE> ?z-}>$I;
</HEAD> ^>4o$}
<BODY> JMBK{J K>
<p>Hello World!</p> 5wt TP ;P
</BODY> or ;f&![w
</HTML> ~rbIMF4T`]
R614#yn-+
sPAg)6&M
HQ9+ 0Rxe~n1o
H bJr[I
ug 7o>PX
]ekk }0
INTERCAL 3*_fzP<R
PLEASE DO ,1 <- #13 A^fjfa);V
DO ,1 SUB #1 <- #238 T".]m7!
DO ,1 SUB #2 <- #112 Mc sTe|X
DO ,1 SUB #3 <- #112 -7>)i
DO ,1 SUB #4 <- #0 9|'B9C
DO ,1 SUB #5 <- #64 }71LLzG`/
DO ,1 SUB #6 <- #238 /Poet%XvRx
DO ,1 SUB #7 <- #26 g8;D/
DO ,1 SUB #8 <- #248 {-zMHVw=}
DO ,1 SUB #9 <- #168 Nw J:!
DO ,1 SUB #10 <- #24 z T%U!jqI
DO ,1 SUB #11 <- #16 v"u^M-_
DO ,1 SUB #12 <- #158 "HMP$)d
DO ,1 SUB #13 <- #52 $e%2t^ i.g
PLEASE READ OUT ,1 $.6K!x{(
PLEASE GIVE UP
05\dl
&FdWFt=X
gA#RM5x@
Java
dBCbL.!
public class Hello |BMV.Zi
{ @# P0M--X
public static void main(String[] args) K2_Qu't0$
{ mumXUX
System.out.println("Hello, world!"); ]pA(K?Lbg
} \79X{mcd
} *2"6fX[
rk2xKm^w
$ls[|N:y0l
JSP C@y8.#l
<% AS!6XT
out.print("Hello, world!"); qgt[ ~i*
%> 3{Nbp
%rQuBi# 1f
pfuW
MIXAL Lr;(xw\['
TERM EQU 19 the MIX console device number z~6y+
ORIG 1000 start address z1OFcqm
START OUT MSG(TERM) output data at address MSG UQCo}vM
HLT halt execution k?nQ?B
W
MSG ALF "MIXAL" w-B^
[<
ALF " HELL" R
ALF "O WOR" Q }k.JS~#
ALF "LD "
8Chj
w wB
END START end of the program !4@G3Ae22
4fV3Ear=j
$
0|a;
Nuva Huw\&E
<..直接输出..> }'"Gr%jf(
Hello, world! 0x2!<z
vEM(bT=H
<..或者..> Zx }&c |Q
D:\ g,\Z
<. /h2b;"
// 不带换行 %3;Fgk y
? "Hello, world!" !4"sX+z9
fpyz'
// 或者 ]36sZ
*
qr\!*\9
// 带换行 I<b?vR 'F
?? 'Hello, world!' bZ_mYyBh
.> <<A`aU^fX
Wx'Kp+9'
+eX)48
OCaml Q\
^[!|
let main () = _:n b&B
print_endline "Hello world!";; Gm`}(;(A
TOF
'2&H
vh!v
MB}}
Pascal wu<])&F
program Hello; Bc-yxjsw
begin Q "r_!f
writeln('Hello, world!'); _STB$cZ
end. [//R ~i?
V+-$jOh
C8N{l:1f]
Perl uNbH\qd=
#!/usr/local/bin/perl gQSNU_o Z
print "Hello, world!\n"; v}G]X Z8
z7.|fE)<6
_?7#MWe&
PHP y]..=z_ql
<?php >C WKH~
print("Hello, world!"); 7DW]JK l
?> lor8@Qz
3LR p2(A
~d{.ng 4K
Pike f"#m=_Xm
#!/usr/local/bin/pike ?i\B^uB
int main() R)?{]]v
{ 9n]|PEoAB
write("Hello, world!\n"); p5=|Y^g !
return 0; ?8dVH2W.
} qJ!Z~-hS
39U5jj7i
\ A1uhHP!
PL/I k@>\LR/v
Test: procedure options(main); yDb'7(3-
declare My_String char(20) varying initialize('Hello, world!'); >e5 *prx+
put skip list(My_String); P=L$;xgp
end Test; |6:=}dE#[
$$i.O}
_fFU#k:MU
Prolog 7x]4`#u
goal A\rt6/
write("hello,world!"). <HWS:'1
@4~=CV%j
mAgF73,3
Python J`M&{UP
#!/usr/local/bin/python ,iNv'
print "Hello, world!" JN/UUfj
?q`0ZuAg\<
vP%tk s+.
REXX ~jU/<~s
say "Hello, world!"
\u-0v.+|
80}+MWdo
"}WJd$
Ruby |as!Ui/J/
#!/usr/bin/ruby S&O3HC
print "Hello, world!\n" p]D]:
Z}P
-!RtH |P
@YvOoTyb
Scheme yn
AB
(display "Hello, world!") vq*Q.0 M+
(newline) VO3pm6r5
]e:/"
E! /[gZ
sed (需要至少一行输入) %OR|^M
sed -ne '1s/.*/Hello, world!/p' $lIWd
idc`p?XP
B@Co'DV[/]
Smalltalk \e=_
2^v!_
Transcript show: 'Hello, world!' I-D^>\k+
:6 J +%(f
i>L+gLW
SNOBOL XKL3RMF9r
OUTPUT = "Hello, world!" 3gWvmep1
END +.B<Hd
t9gfU5?
:pX`?Ew`g
SQL _i_Q?w`
create table MESSAGE (TEXT char(15)); C-eA8pYY/
insert into MESSAGE (TEXT) values ('Hello, world!'); -Ue$T{;RoH
select TEXT from MESSAGE; eO=s-]mk
drop table MESSAGE; h+.{2^x
=rA~7+}
Xy ,lA4IP
Tcl a/Q$cOs
#!/usr/local/bin/tcl qL$a
c}`
puts "Hello, world!" ?,P3)&3g
<Tw>|cFT
})xp%<`
TScript IH48|sa
? "Hello, world!" ~\p]~qQ\K
] H~4
b2(RpY2Y
Turing .9*wY0:
put "Hello, world!" wZT%Ee\D%
8kE]_t
;DA8B'^>
UNIX-style shell e<7.y#L
程序中的/bin/sh可改为您使用的shell +=Jir1SLV
j| Wv7
#!/bin/sh \?>Hu
v
echo 'Hello, world!' _!;Me
)C
1 Q;}zHd
U/ V
GUI {%)s.5Pfw
[%~
:@m
Delphi UsGa
program HelloWorld; X5fmz%VK@
uses HjvCujJ
Dialogs; ~I/@i
begin M}:=zcZ l
ShowMessage('Hello, World!'); +;BAV
end. exh/CK4;
|Z\R*b"
X)SDG#&+bF
Nuva 3P~o"a>
<.
j1?j6s
System.Ui.ShowMessage('Nuva', 'Hello, world!', ['OK']) .M,RFC
.> ~"pKe~h
kh~'Cn "O
Dih6mTP{
Visual Basic r?m+.fJB
MsgBox "Hello, world!" ^L1L=c;,
'或者 D.D$#O_n.S
Print "Hello, world!" WH ?}~u9
\y6OUM2y
/[:dp<
Visual FoxPro #Lsnr.80
? "Hello, world!" O1%pxX'`S
sb:d>6
Y3kA?p0
X11 dca;'$
用一个程序 ?1L.:CS
[=O/1T
xmessage 'Hello, world!' )}Q(Tl\$
Gir#"5F
用C++和gtkmm 2 =U[3PC-N@
i
8!zu!-0
#include <iostream> Er/bO
#include <gtkmm/main.h> Ze<K=Q%(i
#include <gtkmm/button.h> rG?>ltxB
#include <gtkmm/window.h> tqAd$:L
using namespace std; @3fn)YQ'
NC&DF