“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。 Kf<_A{s
;9 n8on\
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》。 4xn^`xf9
a}7KpKCD
以下是用不同语言写成的Hello World程序的几个例子: #UeU:RJ1
Ada A8/4:>Is
with Ada.Text_Io; use Ada.Text_Io; yf^gU*
procedure Hello is eV+wnE?SB5
begin g)6 k?Y
Put_Line ("Hello, world!"); I2!HXMrp
end Hello; X1qj
l_A
.Tqvy)'
V+5
n|L5
汇编语言 *!s?hHv
:%]R x&08
x86 CPU,DOS,TASM 8_$2aqr
MODEL SMALL 4DM|OL`w
IDEAL \)kAhKtG
STACK 100H emIbGkH
FdHWF|D
DATASEG HD|)D5wH|
HW DB 'Hello, world!$' IH:Cm5MV
w.-i !Ls
CODESEG 5R
G5uH/-<
MOV AX, @data
&g>+tkC
MOV DS, AX l(4./M
MOV DX, OFFSET HW !qve1H4d2
MOV AH, 09H _I5+o\;1
INT 21H :?W:'% (`[
MOV AX, 4C00H - & r{%7
INT 21H lB@K;E@r8
END 7Wn]l!
ka[NYW{.
X/7 49"23
x86 CPU,GNU/Linux,NASM sxa
(
;"Hello World" for Linux on Intel 80x86 using nasm (Intel syntax). a8$pc>2E
;Enter this into "hello.asm" then type: Xxw.{2Ji!q
;"nasm -f elf hello.asm" :\RB ^3;
;"ld hello.o -o hello" n8,/olqwW
;"./hello" QV1%Zou
[} 3Y1t{G
section .data ;data section declaration .1}(Bywm5
msg db 'Hello World!',0AH ?!Gt.
fb
len equ $-msg ;string length OPjh"Hv
3W0:0I
section .text ;code section declaration FM];+d0
global _start ;entry point (start of execution) tgnXBWA`!
_start: mov edx,len ;string length n_glYSV!
mov ecx,msg ;string start &t4(86Bmq
mov ebx,1 ;file handle: stdout Vd~k4
mov eax,4 ;sys_write +N:%`9}2V
int 80h ;kernel system call Zv7)+Q
h 42?^mV4?
mov ebx,0 ;return value ;Yj&7k1
mov eax,1 ;sys_exit <0}'#9>O
int 80h ;kernel system call %)V3QnBO
0l*/_;wo
MLX.MUS
x86 CPU,Windows,MASM32 K.Z{4x=0
.386 VUy
1?n
.model flat,stdcall
7]bqs"t
option casemap:none 0T;WN$W|
;Include 文件定义 x #g,l2_!
include windows.inc krU2S-
include user32.inc HR
includelib user32.lib P]GGnT(!
include kernel32.inc R)z|("%ec
includelib kernel32.lib Fsh-a7Qp
;数据段 o}z}79Z
.data U>XGJQ<NS
szCaption db 'A MessageBox!',0 $4pW#4/4
szText db 'Hello,world!',0 8Qh/=Ir
;代码段 _i#Z'4?2E
.code GS%Dn^l
start: I'wAgf6W
invoke MessageBox,NULL,offset szText,offset szCaption,MB_OK eF@E|kK
invoke ExitProcess,NULL lhU# /}Z
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> &D#v0!e~x
end start `x{gF8GV
wDk[)9#A
3}Pa,uN
AWK Mv3Ch'X[
BEGIN { print "Hello, world!" } \8!HZei
>Ko )Z&j9W
D~} 4N1
BASIC CgWj9 [
传统版BASIC(例如GWBASIC): |%} ?*|-
y:L|]p}huE
10 PRINT "Hello, world!" (Lp-3Xx
20 END FW4 hqgE@
PZ s
或在提示符输入: x$E
l7=.
Zl)|x%z
?"Hello, world!":END iu .{L(m
"?!IPX2\S
现代版BASIC(例如Quick BASIC): ='FEC-f95
lMP7o&
Print "Hello, world!" jn[a23;G)
8"@<s?0\"
以下的语句在Quick BASIC中同样有效: -:QyWw/d
$lQi0*s
? "Hello,world!" yRtFUlm`
bu.36\78
C"}x=cK
BCPL _F,OS<>
GET "LIBHDR" 1#V0g Q
km^AX:r1
LET START () BE )q,}jeM8
$( L%DL
n
WRITES ("Hello, world!*N") ^V:YNUqp#
$) WXM_H0K
gSC@uf
kU /?#s
Befunge ;#
{x_>M
"!dlrow olleH">v -'nx7wnj2
, `XnFc*L 1
^_@ I4*N
(mEZ4yM
+SJ aE] $
Brainfuck %F7aFvl*
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<< &$=F$
+++++++++++++++.>.+++.------.--------.>+.>. kK(633s
)sQbDA|p
Ub"\LUu
C 8c~H![2u
#include <stdio.h> @EQ{lGpU3
23>?3-q
int main(void) B[$e;h*Aw[
{ g
(~&
printf("Hello, world!\n"); ldxUq,p
return 0; yF:fxdpw
} aZ'p:9e
xnLf R6B
8177x7UG2[
C++ ?1d_E meG2
#include <iostream> T:-Uy&pBEN
6?~pWZ&k_
int main() o]nQo?!
{ 4e:hKv,+4
std::cout << "Hello, world!" << std::endl; Wj3H
y4
return 0; (*EN! -/
} B<)(7GTv7"
<Z5prunov
LKm5U6
C++/CLI C$5v:Fk
int main() hk=+t&Y<H
{ Pk,^q8;
System::Console::WriteLine("Hello, world!"); 6e*JCf>
} Y,a.9AWw)
eI[z%j[Y*
NZ_45/(dx
C# (C Sharp) *f[`Yv
class HelloWorldApp K@fxCj*}
{ i{,>2KVC|
public static void Main() CkP!4^J qQ
{ N5s_o0K4TU
System.Console.WriteLine("Hello, world!"); ?gkK*\x2
} U3Q'ZT
} bNC1[GG[
9Hu%Z/[!p
0+L5k!1D
COBOL /eE P^)h
IDENTIFICATION DIVISION. QCjmg5bf'7
PROGRAM-ID. HELLO-WORLD. Ft]sTA+C
[]Z6<rC|
ENVIRONMENT DIVISION. 4jXyA/F9V
7W>T=
@
DATA DIVISION. MF1u8Yl:0
snK/,lm.
PROCEDURE DIVISION. :S%|^QAN
DISPLAY "Hello, world!". mr;WxxO5
STOP RUN. O`2%@%?I
Ah"RxA
qaUHcdH
Common Lisp v\<`"
(format t "Hello world!~%") :c6%;2
fN&O `T>
?{FxbDp>
DOS批处理 UVUHLu|^
@echo off `0so)2ty+
echo "Hello, world!" # ><.zZ
Ao,lEjN I
{!,+C0
Eiffel L'c4i[~s
class HELLO_WORLD &
z?y
{ u;ntDr
creation CfVz'
make Xc@4(Nyp
feature 0!^{V:DtQ
make is U$-FQRM4K
local *"E]^wCn
io:BASIC_IO is6JS^Q
do ZJx:?*0a
!!io aB$Y5
io.put_string("%N Hello, world!") 2.|Y
end -- make *z(.D\{%
end -- class HELLO_WORLD h+vKai
dCc*<S
:&Ul
Erlang Wima=xYe\5
-module(hello). JY /Cd6\
-export([hello_world/0]). 6I>W(_T
u2DsjaL
hello_world() -> io:fwrite("Hello, World!\n"). MF& +4$q
F'Wef11Yz
{}.c.W+
Forth (;s\Ip0
." Hello, world!" CR d+/d)cu
[H"Ods~_`
"=qdBG9
Fortran SQEXC*08
WRITE(*,10) Q.5a"(d@
10 FORMAT('Hello, World!') ov|s5yH8e
STOP 7%o\O{,U
END -
@
b]J_R"}
(5atU |8r
HTML (g
<HTML> h'N,oDB)
<HEAD> /at#[Pw~01
<TITLE> Hello World! </TITLE> Rh:\/31~
</HEAD> '?q|7[SU
<BODY> TlM ]d;9G
<p>Hello World!</p> g{dyDN$5|w
</BODY> }"_S;[{d
</HTML> %vMi
kibI
GT*\gZ
B<+}_3.
HQ9+ IUI>/87u
H _e/vw:
m,Os$>{Ok
.(3B}}gB>
INTERCAL W4T>@b.
PLEASE DO ,1 <- #13 I2D<~xP~2+
DO ,1 SUB #1 <- #238 '|Cs!Zl
DO ,1 SUB #2 <- #112 0gxbo
DO ,1 SUB #3 <- #112 w!tQU9+*
DO ,1 SUB #4 <- #0 5q"
;R$+j
DO ,1 SUB #5 <- #64 :0V <
DO ,1 SUB #6 <- #238 0hCJovSG%
DO ,1 SUB #7 <- #26 aQkgkV;~
DO ,1 SUB #8 <- #248 CkIICx
DO ,1 SUB #9 <- #168 KeY)%{
DO ,1 SUB #10 <- #24 LkNC8V
DO ,1 SUB #11 <- #16 $Nnz|y
DO ,1 SUB #12 <- #158 :Bda]]Y=
DO ,1 SUB #13 <- #52 trg+")a
PLEASE READ OUT ,1 pbAQf3
PLEASE GIVE UP *O+YhoR?
evZ{~v&/
dxxD%lHCF
Java G{YLyl/9
public class Hello C$Ldz=d
{ |f.=Y~aY
public static void main(String[] args) Trm)7B*
{ ?GX5Pvg
System.out.println("Hello, world!"); |Q.t]TR'P
} w#]%I+
} mG\,T3/*
hyFq>XFo
^D"}OQoh
JSP ;,4 Z5+
<% Rm"lRkY4I[
out.print("Hello, world!"); %0. o(U
%> Hz!+g'R!Gs
8qo{%
OP%h`
MIXAL eRv3qK{`
TERM EQU 19 the MIX console device number cKdy)T%;
ORIG 1000 start address d{I|4h
START OUT MSG(TERM) output data at address MSG ,RDxu7iT
HLT halt execution ,NPU0IDG>
MSG ALF "MIXAL" " #_NA`$i
ALF " HELL" 1KAA(W;nq
ALF "O WOR" vNHMe{,u
ALF "LD " >O |hN `
END START end of the program v`bX#\It
)%f]`<